ST62T62CN6 STMicroelectronics, ST62T62CN6 Datasheet

Microcontrollers (MCU) OTP EPROM 2K No Intf


Manufacturer Part Number
Microcontrollers (MCU) OTP EPROM 2K No Intf

Specifications of ST62T62CN6

Processor Series
Data Bus Width
8 bit
Program Memory Type
Program Memory Size
1836 B
Data Ram Size
128 B
Interface Type
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
Number Of Timers
Operating Supply Voltage
3 V to 6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Package / Case
Development Tools By Supplier
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / Rohs Status

Available stocks

Part Number
Part Number:
February 2002
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull output
– Analog Input
3.0 to 6.0V Supply Operating Range
8 MHz Maximum Clock Frequency
-40 to +125°C Operating Temperature Range
Run, Wait and Stop Modes
5 Interrupt Vectors
Look-up Table capability in Program Memory
Data Storage in Program Memory:
User selectable size
Data RAM: 128 bytes
Data EEPROM: 64 bytes (none on ST62T52C)
User Programmable Options
9 I/O pins, fully programmable as:
5 I/O lines can sink up to 30mA to drive LEDs or
TRIACs directly
8-bit Timer/Counter with 7-bit programmable
8-bit Auto-reload Timer with 7-bit programmable
prescaler (AR Timer)
Digital Watchdog
Oscillator Safe Guard
Low Voltage Detector for Safe Reset
8-bit A/D Converter with 4 analog inputs
On-chip Clock oscillator can be driven by Quartz
Crystal Ceramic resonator or RC network
User configurable Power-on Reset
One external Non-Maskable Interrupt
ST626x-EMU2 Emulation and Development
System (connects to an MS-DOS PC via a
parallel port)
(See end of Datasheet for Ordering Information)
Rev. 3.0

Related parts for ST62T62CN6

ST62T62CN6 Summary of contents

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OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM 3.0 to 6.0V Supply Operating Range 8 MHz Maximum Clock Frequency -40 to +125°C Operating Temperature Range Run, Wait and Stop Modes 5 Interrupt Vectors Look-up Table capability ...

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ST62T52C ST62T62C/E62C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ...

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ON-CHIP PERIPHERALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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ST6252C ST6262B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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GENERAL DESCRIPTION 1.1 INTRODUCTION The ST62T52C and ST62T62C devices is low cost members of the ST62xx 8-bit HCMOS family of mi- crocontrollers, which is targeted at low to medium complexity applications. All ST62xx devices are based on a building ...

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ST62T52C ST62T62C/E62C 1.2 PIN DESCRIPTIONS V and V . Power is supplied to the MCU via DD SS these two pins the power connection and the ground connection. SS OSCin and OSCout. These pins are ...

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MEMORY MAP 1.3.1 Introduction The MCU operates in three separate memory spaces: Program space, Data space, and Stack space. Operation in these three memory spaces is described in the following paragraphs. Figure 3. Memory Addressing Diagram PROGRAM SPACE 0000h ...

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... U.V. erasure that also results into the whole EPROM context erasure. Note: Once the Readout Protection is activated longer possible, even for STMicroelectronics, to gain access to the OTP contents. Returned parts with a protection set can therefore not be ac- cepted. ...

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MEMORY MAP (Cont’d) 1.3.3 Data Space Data Space accommodates all the data necessary for processing the user program. This space com- prises the RAM resource, the processor core and peripheral registers, as well as read-only data such as constants and ...

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ST62T52C ST62T62C/E62C MEMORY MAP (Cont’d) 1.3.5 Data Window Register (DWR) The Data read-only memory window is located from address 0040h to address 007Fh in Data space. It allows direct reading of 64 consecutive bytes locat- ed anywhere in program memory, ...

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MEMORY MAP (Cont’d) 1.3.6 Data RAM/EEPROM (DRBR) Address: E8h — Write only 7 DRBR - - - - 4 Bit 7-5 = These bits are not used Bit 4 - DRBR4. This bit, when set, selects RAM Page 2. Bit ...

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ST62T52C ST62T62C/E62C MEMORY MAP (Cont’d) 1.3.7 EEPROM Description EEPROM memory is located in 64-byte pages in data space. This memory may be used by the user program for non-volatile data storage. Data space from 00h to 3Fh is paged as ...

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MEMORY MAP (Cont’d) Additional Notes on Parallel Mode: If the user wishes to perform parallel program- ming, the first step should be to set the E2PAR2 bit. From this time on, the EEPROM will be ad- dressed in write mode, ...

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... TEST/V programming flow of the ST62T62C is described in the User Manual of the EPROM Programming Board. The MCUs can be programmed with the ST62E6xB EPROM programming tools available from STMicroelectronics. Table 5. ST62T52C/T62C Program Memory Map Device Address 0000h-087Fh 0880h-0F9Fh 0FA0h-0FEFh 0FF0h-0FF7h ...

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... FFh. Partial or total programming of EEP- ROM data memory can be performed either through the application software or through an ex- ST62T52C ST62T62C/E62C ternal programmer. Any STMicroelectronics tool used for the program memory (OTP/EPROM) can also be used to program the EEPROM data mem- ory. 15/78 ...

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ST62T52C ST62T62C/E62C 2 CENTRAL PROCESSING UNIT 2.1 INTRODUCTION The CPU Core of ST6 devices is independent of the I/O or Memory configuration. As such, it may be thought independent central processor communicating with on-chip I/O, Memory and ...

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CPU REGISTERS (Cont’d) However, if the program space contains more than 4096 bytes, the additional memory in program space can be addressed by using the Program Bank Switch register. The PC value is incremented after reading the ad- dress of ...

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ST62T52C ST62T62C/E62C 3 CLOCKS, RESET, INTERRUPTS AND POWER SAVING MODES 3.1 CLOCK SYSTEM The MCU features a Main Oscillator which can be driven by an external clock, or used in conjunction with an AT-cut parallel resonant crystal or a suita- ...

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CLOCK SYSTEM (Cont’d) Turning on the main oscillator is achieved by re- setting the OSCOFF bit of the A/D Converter Con- trol Register or by resetting the MCU. Restarting the main oscillator implies a delay comprising the oscillator start up ...

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ST62T52C ST62T62C/E62C CLOCK SYSTEM (Cont’d) Figure 9. OSG Filtering Principle (1) (2) (3) (4) (1) Maximum Frequency for the device to work correctly (2) Actual Quartz Crystal Frequency at OSCin pin (3) Noise from OSCin (4) Resulting Internal Frequency Figure ...

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CLOCK SYSTEM (Cont’d) Figure 11. Clock Circuit Block Diagram MAIN OSCILLATOR Figure 12. Maximum Operating Frequency (f Maximum FREQUENCY (MHz 2.5 3 Notes this area, operation is guaranteed at the ...

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ST62T52C ST62T62C/E62C 3.2 RESETS The MCU can be reset in four ways: – by the external Reset input being pulled low; – by Power-on Reset; – by the digital Watchdog peripheral timing out. – by Low Voltage Detection (LVD) 3.2.1 ...

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RESETS (Cont’d) 3.2.3 Watchdog Reset The MCU provides a Watchdog timer function in order to ensure graceful recovery from software upsets. If the Watchdog register is not refreshed before an end-of-count condition is reached, the internal reset will be activated. ...

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ST62T52C ST62T62C/E62C RESETS (Cont’d) 3.2.6 MCU Initialization Sequence When a reset occurs the stack is reset, the PC is loaded with the address of the Reset Vector (locat program ROM starting at address 0FFEh). A jump to the ...

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RESETS (Cont’d) Table 6. Register Reset Status Register EEPROM Control Register Port Data Registers Port Direction Register Port Option Register Interrupt Option Register TIMER Status/Control AR TIMER Mode Control Register AR TIMER Status/Control 1 Register AR TIMER Status/Control 2Register AR ...

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ST62T52C ST62T62C/E62C 3.3 DIGITAL WATCHDOG The digital Watchdog consists of a reloadable downcounter timer which can be used to provide controlled recovery from software upsets. The Watchdog circuit generates a Reset when the downcounter reaches zero. User software can prevent ...

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DIGITAL WATCHDOG (Cont’d) The Watchdog is associated with a Data space register (Digital WatchDog Register, DWDR, loca- tion 0D8h) which is described in greater detail in Section 3.3.1 Digital Watchdog Register This register is set to 0FEh on Reset: bit ...

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ST62T52C ST62T62C/E62C DIGITAL WATCHDOG (Cont’d) 3.3.1 Digital Watchdog Register (DWDR) Address: 0D8h — Read/Write Reset status: 1111 1110 Bit Watchdog Control bit If the hardware option is selected, this bit ...

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DIGITAL WATCHDOG (Cont’d) These instructions test the C bit and Reset the MCU (i.e. disable the Watchdog) if the bit is set (i.e. if the Watchdog is active), thus disabling the Watchdog. In all modes, a minimum of 28 instructions ...

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ST62T52C ST62T62C/E62C 3.4 INTERRUPTS The CPU can manage four Maskable Interrupt sources, in addition to a Non Maskable Interrupt source (top priority interrupt). Each source is asso- ciated with a specific Interrupt Vector which con- tains a Jump instruction to ...

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INTERRUPTS (Cont’d) 3.4.2 Interrupt Procedure The interrupt procedure is very similar to a call pro- cedure, indeed the user can consider the interrupt as an asynchronous call procedure. As this is an asynchronous event, the user cannot know the context ...

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ST62T52C ST62T62C/E62C INTERRUPTS (Cont’d) 3.4.3 Interrupt Option Register (IOR) The Interrupt Option Register (IOR) is used to en- able/disable the individual interrupt sources and to select the operating mode of the external interrupt inputs. This register is write-only and cannot ...

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ST62T52C ST62T62C/E62C 3.5 POWER SAVING MODES The WAIT and STOP modes have been imple- mented in the ST62xx family of MCUs in order to reduce the product’s electrical consumption during idle periods. These two power saving modes are described in ...

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POWER SAVING MODE (Cont’d) 3.5.3 Exit from WAIT and STOP Modes The following paragraphs describe how the MCU exits from WAIT and STOP modes, when an inter- rupt occurs (not a Reset). It should be noted that the restart sequence ...

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ST62T52C ST62T62C/E62C 4 ON-CHIP PERIPHERALS 4.1 I/O PORTS The MCU features Input/Output lines which may be individually programmed as any of the following input or output configurations: – Input without pull-up or interrupt – Input with pull-up and interrupt – ...

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I/O PORTS (Cont’d) 4.1.1 Operating Modes Each pin may be individually programmed as input or output with various configurations. This is achieved by writing the relevant bit in the Data (DR), Data Direction (DDR) and Option reg- isters (OR). Table ...

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ST62T52C ST62T62C/E62C I/O PORTS (Cont’d) 4.1.2 Safe I/O State Switching Sequence Switching the I/O ports from one state to another should be done in a sequence which ensures that no unwanted side effects can occur. The recom- mended safe transitions ...

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I/O PORTS (Cont’d) Table 12. I/O Port Option Selections MODE AVAILABLE ON Input PA4-PA5 Reset state( PB0, PB6-PB7 PC2-PC3 Reset state if PULL-UP PB2-PB3, option disabled PA4-PA5 Input PB0,,PB6-PB7 Reset state PC2-PC3 Reset state if PULL-UP option enabled PB2-PB3 Input ...

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ST62T52C ST62T62C/E62C I/O PORTS (Cont’d) 4.1.3 ARTimer alternate functions When bit PWMOE of register ARMC is low, pin ARTIMout/PB7 is configured as any standard pin of port B through the port registers. When PW- MOE is high, ARTMout/PB7 is the ...

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TIMER The MCU features an on-chip Timer peripheral, consisting of an 8-bit counter with a 7-bit program- mable prescaler, giving a maximum count of 2 Figure 25. shows the Timer Block Diagram. The content of the 8-bit counter can ...

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ST62T52C ST62T62C/E62C TIMER (Cont’d) 4.2.1 Timer Operation The Timer prescaler is clocked by the prescaler clock input (f ÷ 12). INT The user can select the desired prescaler division ratio through the PS2, PS1, PS0 bits. When the TCR count ...

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TIMER (Cont’d) A write to the TCR register will predominate over the 8-bit counter decrement to 00h function, i. write and a TCR register decrement to 00h occur simultaneously, the write will take precedence, and the TMZ bit ...

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ST62T52C ST62T62C/E62C 4.3 AUTO-RELOAD TIMER The Auto-Reload Timer (AR Timer) on-chip pe- ripheral consists of an 8-bit timer/counter with compare and capture/reload capabilities and of a 7-bit prescaler with a clock multiplexer, enabling the clock input to be selected as ...

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ST62T52C ST62T62C/E62C AUTO-RELOAD TIMER (Cont’d) It should be noted that the reload values will also affect the value and the resolution of the duty cycle of PWM output signal. To obtain a signal on ARTI- Mout, the contents of the ...

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AUTO-RELOAD TIMER (Cont’d) Capture Mode with PWM Generation. In this mode, the AR counter operates as a free running 8-bit counter fed by the prescaler output. The counter is incremented on every clock rising edge. An 8-bit capture operation from ...

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ST62T52C ST62T62C/E62C AUTO-RELOAD TIMER (Cont’d) 4.3.3 AR Timer Registers AR Mode Control Register (ARMC) Address: D5h — Read/Write Reset status: 00h 7 TCLD TEN PWMOE EIE CPIE The AR Mode Control Register ARMC is used to program the different operating ...

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AUTO-RELOAD TIMER (Cont’d) AR Status Control Register 1(ARSC1) Address: D7h — Read/Write 7 PS2 PS1 PS0 D4 SL1 Bist 7-5 = PS2-PS0: Prescaler Division Selection Bits 2-0. These bits determine the Prescaler divi- sion ratio. The prescaler itself is not ...

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ST62T52C ST62T62C/E62C 4.4 A/D CONVERTER (ADC) The A/D converter peripheral is an 8-bit analog to digital converter with analog inputs as alternate I/O functions (the number of which is device depend- ent), offering 8-bit resolution with a typical conver- sion ...

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A/D CONVERTER (Cont’d) Since the ADC is on the same chip as the micro- processor, the user should not switch heavily load- ed output signals during conversion, if high preci- sion is required. Such switching will affect the sup- ply ...

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ST62T52C ST62T62C/E62C 5 SOFTWARE 5.1 ST6 ARCHITECTURE The ST6 software has been designed to fully use the hardware in the most efficient way possible while keeping byte usage to a minimum; in short, to provide byte efficient programming capability. The ...

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INSTRUCTION SET The ST6 core offers a set of 40 basic instructions which, when combined with nine addressing modes, yield 244 usable opcodes. They can be di- vided into six different types: load/store, arithme- tic/logic, conditional branch, control instructions, ...

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ST62T52C ST62T62C/E62C INSTRUCTION SET (Cont’d) Arithmetic and Logic. These instructions are used to perform the arithmetic calculations and logic operations. In AND, ADD, CP, SUB instruc- tions one operand is always the accumulator while the other can be either a ...

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INSTRUCTION SET (Cont’d) Conditional Branch. The branch instructions achieve a branch in the program when the select- ed condition is met. Bit Manipulation Instructions. These instruc- tions can handle any bit in data space memory. One group either sets or ...

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ST62T52C ST62T62C/E62C Opcode Map Summary. The following table contains an opcode map for the instructions used by the ST6 LOW 0 1 0000 0001 HI 2 JRNZ 4 CALL abc 0000 1 pcr 2 ext 1 2 ...

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Opcode Map Summary (Continued) LOW 8 9 1000 1001 HI 2 JRNZ abc 0000 1 pcr 2 ext 1 2 JRNZ abc 0001 1 pcr 2 ext 1 2 JRNZ ...

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ST62T52C ST62T62C/E62C 6 ELECTRICAL CHARACTERISTICS 6.1 ABSOLUTE MAXIMUM RATINGS This product contains devices to protect the inputs against damage due to high static voltages, how- ever it is advisable to take normal precaution to avoid application of any voltage higher ...

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RECOMMENDED OPERATING CONDITIONS Symbol Parameter T Operating Temperature A Operating Supply Voltage (Except ST626xB ROM devices Operating Supply Voltage (ST626xB ROM devices) 2) Oscillator Frequency (Except ST626xB ROM devices) f OSC 2) Oscillator Frequency (ST626xB ROM devices) ...

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ST62T52C ST62T62C/E62C 6.3 DC ELECTRICAL CHARACTERISTICS (T = -40 to +125°C unless otherwise specified) A Symbol Parameter V Input Low Level Voltage IL All Input pins V Input High Level Voltage IH All Input pins (1) Hysteresis Voltage V Hys ...

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DC ELECTRICAL CHARACTERISTICS (Cont’ -40 to +85°C unless otherwise specified)) A Symbol Parameter V LVD Threshold in power- LVD threshold in powerdown dn Low Level Output Voltage All Output pins V OL Low Level Output Voltage ...

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ST62T52C ST62T62C/E62C 6.5 A/D CONVERTER CHARACTERISTICS (T = -40 to +125°C unless otherwise specified) A Symbol Parameter Res Resolution (1) (2) A Total Accuracy TOT t Conversion Time C ZIR Zero Input Reading FSR Full Scale Reading Analog Input Current ...

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Figure 31. Vol versus Iol on all I/O port at Vdd= This curves represents typical variations and is given for guidance only Figure 32. Vol versus Iol on all I/O port at T=25°C ...

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ST62T52C ST62T62C/E62C Figure 34. Vol versus Iol for High sink (30mA) I/O ports at Vdd= This curves represents typical variations and is given for guidance only Figure 35. Voh versus Ioh on ...

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Figure 37. Idd WAIT versus V 2.5 2 1 This curves represents typical variations and is given for guidance only Figure 38. Idd STOP versus This curves represents ...

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ST62T52C ST62T62C/E62C Figure 40. Idd WAIT versus V 2.5 2 1 This curves represents typical variations and is given for guidance only Figure 41. Idd RUN versus This curves ...

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Figure 43. RC frequency versus This curves represents typical variations and is given for guidance only Figure 44. RC frequency versus 0.1 3 This curves represents typical variations and is given for guidance only ...

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ST62T52C ST62T62C/E62C 7 GENERAL INFORMATION 7.1 PACKAGE MECHANICAL DATA Figure 45. 16-Pin Plastic Dual In-Line Package, 300-mil Width Figure 46. 16-Pin Ceramic Side-Brazed Dual In-Line Package 68/ ...

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PACKAGE MECHANICAL DATA (Cont’d) Figure 47. 16-Pin Plastic Small Outline Package, 300-mil Width Figure 48. 16-Pin Plastic Shrink Small Outline Package 45× ...

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... Table 22. OTP/EPROM VERSION ORDERING INFORMATION Sales Type Memory (Bytes) ST62E62CF1 1836 EPROM ST62T52CM6 ST62T52CM3 ST62T62CM6 ST62T62CM3 ST62T52CB6 ST62T52CB3 ST62T62CB6 ST62T62CB3 ST62T52CN6 ST62T52CN3 ST62T62CN6 ST62T62CN3 70/78 Test Conditions PDIP16 PSO16 Program EEPROM (Bytes) 64 1836 OTP None 1836 OTP 64 1836 OTP None 1836 OTP ...

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FASTROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER AND EEPROM 3.0 to 6.0V Supply Operating Range 8 MHz Maximum Clock Frequency -40 to +125°C Operating Temperature Range Run, Wait and Stop Modes 5 Interrupt Vectors Look-up Table capability ...

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... MCU. The listing is then returned to the customer who must thoroughly check, com- plete, sign and return it to STMicroelectronics. The signed listing forms a part of the contractual agree- ment for the production of the specific customer MCU ...

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SAFE RESET AUTO-RELOAD TIMER, ROM AND EEPROM 3.0 to 6.0V Supply Operating Range 8 MHz Maximum Clock Frequency -40 to +125°C Operating Temperature Range Run, Wait and Stop Modes 5 Interrupt Vectors Look-up Table capability in Program Memory Data Storage ...

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ST6252C ST6262B 1 GENERAL DESCRIPTION 1.1 INTRODUCTION The ST6252C and ST6262B are mask pro- grammed ROM version of ST62T52C and ST62T62C OTP devices. Figure 1. Programming Waveform 0.5s min TEST 15 14V typ 10 5 TEST 150 µs typ 100mA ...

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... MCU. The listing is then returned to the customer who must thoroughly check, complete, sign and return it to STMicroelectronics. The signed listing forms a part of the contractual agreement for the creation of the specific customer mask. The STMicroelectronics Sales Organization will be pleased to provide detailed information on con- tractual points ...

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... Enabled [ ] Enabled FASTROM Enabled ROM Enabled Fuse is blown by STMicroelectronics [ ] Fuse can be blown by the customer [ ] Disabled [ ] Enabled [ ] Enabled [ ] Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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SUMMARY OF CHANGES Rev. Modification of “Additional Notes for EEPROM Parallel Mode” (p.13) Changed f values in section 6.4 on page section 4.2 on page 41: vector #4 instead of vector #3 for the timer interrupt ...

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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics ...

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