ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 38

IC MCU 8BIT 8K FLASH 32LQFP

ST7FLITE49K2T6TR

Manufacturer Part Number
ST7FLITE49K2T6TR
Description
IC MCU 8BIT 8K FLASH 32LQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet

Specifications of ST7FLITE49K2T6TR

Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Processor Series
ST7FLITE4x
Core
ST7
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
I2C, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
24
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ST7FLITE-SK/RAIS, ST7FLI49M-D/RAIS, STX-RLINK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
For Use With
497-8399 - BOARD EVAL ST7LITE49M/STLED316S497-5858 - EVAL BOARD PLAYBACK ST7FLITE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ST7FLITE49K2T6TR
Manufacturer:
STMicroelectronics
Quantity:
10 000
Part Number:
ST7FLITE49K2T6TR
Manufacturer:
ST
0
Supply, reset and clock management
7
7.1
7.1.1
38/245
Supply, reset and clock management
The device includes a range of utility features for securing the application in critical
situations (for example in case of a power brown-out), and reducing the number of external
components. The main features are the following:
RC oscillator adjustment
Internal RC oscillator
The device contains an internal RC oscillator with a specific accuracy for a given device,
temperature and voltage range (4.5 V - 5.5 V). It must be calibrated to obtain the frequency
required in the application. This is done by software writing a 10-bit calibration value in the
RCCR (RC Control register) and in the bits 6:5 in the SICSR (SI Control Status register).
Whenever the microcontroller is reset, the RCCR returns to its default value (FFh), i.e. each
time the device is reset, the calibration value must be loaded in the RCCR. Predefined
calibration values are stored in EEPROM for 3 and 5 V V
Table
Table 5.
RCCRH0
RCCRH1
RCCRL0
RCCRL1
Clock management
Reset Sequence Manager (RSM)
System Integrity management (SI)
5).
RCCR
8 MHz internal RC oscillator (enabled by option byte)
Auto-wakeup RC oscillator (enabled by option byte)
1 to 16 MHz or 32 kHz External crystal/ceramic resonator (selected by option byte)
External clock input (enabled by option byte)
For clock ART counter only: PLL32 for multiplying the 8 MHz frequency by 4
(enabled by option byte). The 8 MHz input frequency is mandatory and can be
obtained in the following ways:
- from 8-MHz internal RC oscillator
- from 16-MHz external crystal/ceramic resonator (divided internally by two by
default)
Main supply Low voltage detection (LVD) with reset generation (enabled by option
byte)
Auxiliary Voltage detector (AVD) with interrupt capability for monitoring the main
supply (enabled by option byte)
Predefined RC oscillator calibration values
f
f
V
Conditions
RC
RC
T
T
V
DD
A
A
DD
= 8 MHz
= 25°C
= 8 MHz
= 25°C
= 3.3 V
= 5V
DD
supply voltages at 25 °C (see
DEE0h
DEE1h
DEE2h
DEE3h
ST7LITE49K2
Address
(1)
(1)
(1)
(1)
(CR[9:2])
(CR[1:0])
(CR[9:2])
(CR[1:0])
ST7LITE49K2

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