ST62E20C STMicroelectronics, ST62E20C Datasheet
ST62E20C
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ST62E20C Summary of contents
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... System (connects to an MS-DOS PC via a parallel port) DEVICE SUMMARY OTP EPROM DEVICE I/O Pins (Bytes) (Bytes) ST62T08C 1036 - ST62T09C 1036 - ST62T10C 1836 - ST62T20C 3884 - ST62E20C - 3884 September 1998 ST62T10C/T20C/E20C (See end of Datasheet for Ordering Information) Analog inputs ST62T08C/T09C PDIP20 PSO20 CDIP20W Rev ...
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ST62T08C/T09C/ST62T10C/T20C/E20C . . . . . . . . . . . . . . . . . . 1 1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . ...
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I/O Port Data Direction Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... ST62xx 8-bit HCMOS family of microcontrollers, which is target low to medium complexity applications. All ST62xx devices are based on a building block ap- proach: a common core is surrounded by a number of on-chip peripherals. The ST62E20C is the erasable EPROM version of the ST62T08C,T09C,T10C and T20C device, which may be used ...
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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 internally connected ...
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ST62T08C/T09C ST62T10C/T20C/E20C 1.3 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 ...
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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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ST62T08C/T09C ST62T10C/T20C/E20C 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 ...
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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, between ad- ...
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ST62T08C/T09C ST62T10C/T20C/E20C 1.4 PROGRAMMING MODES 1.4.1 Option Bytes The two Option Bytes allow configuration capabili the MCUs. Option byte’s content is automati- cally read, and the selected options enabled, when the chip reset is activated. It can only ...
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... The erasure time with this dosage is ap- proximately minutes using an ultraviolet lamp with 12000µW/cm ST62E20C should be placed within 2.5cm (1Inch) of the lamp tubes during erasure. Description Reserved User ROM Reserved Interrupt Vectors ...
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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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 5. Register Reset Status Register Oscillator Control Register Port Data Registers Port Direction Register Port Option Register Interrupt Option Register TIMER Status/Control Register Accumulator Data RAM Data ROM Window Register A/D Result Register ...
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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C DIGITAL WATCHDOG (Cont’d) 3.3.1 Digital Watchdog Register (DWDR) Address: 0D8h — Read/Write Reset status: 1111 1110b Bit Watchdog Control bit If the hardware option is selected, this bit is ...
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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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ST62T08C/T09C ST62T10C/T20C/E20C 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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... When the GEN bit is low, the NMI interrupt is ac- tive but cannot cause a wake up from STOP/WAIT 0 modes. This register is cleared on reset 3.4.4 Interrupt Sources Interrupt sources available on the ST62E20C/ T20C are summarized in the ated mask bit to enable/disable the interrupt re- quest. Address Mask bit Register All Interrupts, excluding C8h ...
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INTERRUPTS (Cont’d) Figure 21. Interrupt Block Diagram V DD NMI PBE PORT A FROM REGISTER SINGLE BIT ENABLE PORT A,B PBE V DD PORT B Bits PBE PBE TIMER ADC(*) (*)Except on ST62T08C ST62T08C/T09C ST62T10C/T20C/E20C FF CLK Q CLR I ...
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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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) 4.1.3 I/O Port Option Registers ORA/B (CCh PA, CDh PB) Read/Write 7 Px7 Px6 Px5 Px4 Px3 Bit 7-0 = Px7 - Px0: Port A and B Option Register bits. 4.1.4 I/O Port Data Direction Registers DDRA/B ...
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ST62T08C/T09C ST62T10C/T20C/E20C I/O PORTS (Cont’d) Table 11. I/O Port Option Selections MODE AVAILABLE ON PA0-PA3 Input PB0-PB7 PA0-PA3 Input PB0-PB7 with pull up Input PA0-PA3 with pull up PB0-PB7 with interrupt PB0-PB3 (ST62T10C,T20C,E20C) Analog Input PB4-PB7 (All except ST62T08C) Open ...
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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 The peripheral may be configured in three different operating modes. Figure 24 shows the ...
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ST62T08C/T09C ST62T10C/T20C/E20C TIMER (Cont’d) 4.2.1 Timer Operating Modes There are three operating modes, which are se- lected by the TOUT and DOUT bits (see TSCR register). These three modes correspond to the two clocks which can be connected to the ...
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TIMER (Cont’d) 4.2.3 Application Notes The user can select the presence of an on-chip pull-up on the TIMER pin as option. TMZ is set when the counter reaches zero; howev- er, it may also be set by writing 00h in ...
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ST62T08C/T09C ST62T10C/T20C/E20C 4.3 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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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ST62T08C/T09C ST62T10C/T20C/E20C 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 V Operating Supply Voltage Oscillator Frequency OSC I Pin Injection Current (positive) INJ+ I Pin Injection Current (negative) V INJ- Notes: 1. Care must be taken in ...
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ST62T08C/T09C ST62T10C/T20C/E20C 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 ...
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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 ...
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ST62T08C/T09C ST62T10C/T20C/E20C 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 ...
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Figure frequency versus Vcc . 10 1 0.1 3 3.5 This curves represents typical variations and is given for guidance only Figure 29. LVD thresholds versus temperature 4.2 4.1 4 3.9 3.8 3.7 3.6 -40° C This ...
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ST62T08C/T09C ST62T10C/T20C/E20C Figure 30. Idd WAIT versus Vcc at 8 Mhz for OTP devices 1.2 1 0.8 0.6 0.4 0 This curves represents typical variations and is given for guidance only Figure 31. Idd STOP versus Vcc for ...
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Figure 33. Idd WAIT versus Vcc at 8Mhz for ROM devices 0.8 0.6 0.4 0 This curves represents typical variations and is given for guidance only Figure 34. Idd RUN versus Vcc at 8 Mhz for ROM ...
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ST62T08C/T09C ST62T10C/T20C/E20C Figure 36. Vol versus Iol on all I/O port at T=25° This curves represents typical variations and is given for guidance only Figure 37. Vol versus Iol for High sink (20mA) ...
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Figure 39. Voh versus Ioh on all I/O port at 25° This curves represents typical variations and is given for guidance only Figure 40. Voh versus Ioh on all I/O port at ...
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ST62T08C/T09C ST62T10C/T20C/E20C 7 GENERAL INFORMATION 7.1 PACKAGE MECHANICAL DATA Figure 41. 20-Pin Plastic Dual In-Line Package, 300-mil Width Figure 42. 20-Pin Ceramic Side-Brazed Dual In-Line Package 58/70 146 mm Dim. Min Typ Max A 5.33 A2 2.92 3.30 4.95 0.115 ...
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... PACKAGE MECHANICAL DATA (Cont’d) Figure 43. 20-Pin Plastic Small Outline Package, 300-mil Width 7.2 .ORDERING INFORMATION Table 20. OTP/EPROM VERSION ORDERING INFORMATION Sales Type I/O ST62E20CF1 ST62T08CB6 ST62T08CM6 ST62T09CB6 ST62T09CM6 ST62T10CB6 12 ST62T10CM6 ST62T20CB6 ST62T20CM6 ST62T20CB3 ST62T20CM3 ST62T08C/T09C ST62T10C/T20C/E20C Dim SO20 N Program Analog ...
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ST62T08C/T09C ST62T10C/T20C/E20C Notes: 60/70 148 ...
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FASTROM MCUs WITH A/D CONVERTER, OSCILLATOR SAFEGUARD, SAFE RESET AND 20 PINS 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 ...
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... This listing refers exactly to the ROM con- tents and options which will be used to produce the specified 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- 62/70 150 ment for the production of the specific customer MCU ...
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ORDERING INFORMATION (Cont’d) Table 4. ROM version Ordering Information Sales Type ROM ST62P08CB1/XXX ST62P08CB6/XXX ST62P08CB3/XXX (*) 1036 Bytes ST62P08CM1/XXX ST62P08CM6/XXX ST62P08CM3/XXX (*) ST62P09CB1/XXX ST62P09CB6/XXX ST62P09CB3/XXX (*) 1036 Bytes ST62P09CM1/XXX ST62P09CM6/XXX ST62P09CM3/XXX (*) ST62P10CB1/XXX ST62P10CB6/XXX ST62P10CB3/XXX (*) 1836 Bytes ST62P10CM1/XXX ST62P10CM6/XXX ...
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... Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phone Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STMicroelectronics references Device ST62P08C Package: Temperature Range: Oscillator Source Selection Crystal Quartz/Ceramic resonator Watchdog Selection: ...
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ROM MCUs WITH A/D CONVERTER, OSCILLATOR SAFEGUARD, SAFE RESET AND 20 PINS 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 ...
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ST6208C/09C ST6210C/20C 1 GENERAL DESCRIPTION 1.1 INTRODUCTION The ST6210C/20C are mask programmed ROM version of ST62T08C,T09C,T10C,T20C OTP de- vices. They offer the same functionality as OTP devices, selecting as ROM options the options defined in the programmable option byte of ...
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... Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phone Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STMicroelectronics references Device ST6208C [ ] ST6209C Package Dual in Line Plastic [ ] Small Outline Plastic with conditionning: Temperature Range 0° ...
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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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ORDERING INFORMATION (Cont’d) Table 4. ROM version Ordering Information Sales Type ROM ST6208CB1/XXX ST6208CB6/XXX ST6208CB3/XXX 1036 Bytes ST6208CM1/XXX ST6208CM6/XXX ST6208CM3/XXX ST6209CB1/XXX ST6209CB6/XXX ST6209CB3/XXX 1036 Bytes ST6209CM1/XXX ST6209CM6/XXX ST6209CM3/XXX ST6210CB1/XXX ST6210CB6/XXX ST6210CB3/XXX 1836 Bytes ST6210CM1/XXX ST6210CM6/XXX ST6210CM3/XXX ST6220CB1/XXX ST6220CB6/XXX ST6220CB3/XXX 3884 ...
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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 ...