ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 29

• Manufacturer Part Number: ST7LITE49K2
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49K2

• 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 10K write/erase cycles guaranteed Data retention
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow

ST7LITE49K2
5
5.1
5.2
Data EEPROM
Introduction
The electrically erasable programmable read only memory can be used as a non volatile
back-up for storing data. Using the EEPROM requires a basic access protocol described in
this chapter.
Main features
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Figure 6.
EECSR
Up to 32 bytes programmed in the same cycle
EEPROM mono-voltage (charge pump)
Chained erase and programming cycles
Internal control of the global programming cycle duration
Wait mode management
Read-Out Protection
EEPROM block diagram
0
ADDRESS BUS
0
DECODER
ADDRESS
0
0
4
0
DECODER
0
4
4
ROW
E2LAT
E2PGM
MULTIPLEXER
128
DATA
(1 ROW = 32 x 8 BITS)
MEMORY MATRIX
HIGH VOLTAGE
EEPROM
DATA BUS
PUMP
DATA LATCHES
32 x 8 BITS
128
Data EEPROM
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