参数资料
型号: ST72311R9T3/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, TQFP-64
文件页数: 61/152页
文件大小: 1909K
代理商: ST72311R9T3/XXX
ST72311R, ST72511R, ST72532R
16/152
3 DATA EEPROM
3.1 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.
3.2 MAIN FEATURES
s
Up to 16 Bytes programmed in the same cycle
s
EEPROM mono-voltage (charge pump)
s
Chained erase and programming cycles
s
Internal control of the global programming cycle
duration
s
End of programming cycle interrupt flag
s
WAIT mode management
Figure 4. EEPROM Block Diagram
EECSR
EEPROM INTERRUPT
FALLING
EDGE
HIGH VOLTAGE
PUMP
IE
LAT
0
PGM
EEPROM
RESERVED
DETECTOR
EEPROM
MEMORY MATRIX
(1 ROW = 16 x 8 BITS)
ADDRESS
DECODER
DATA
MULTIPLEXER
16 x 8 BITS
DATA LATCHES
ROW
DECODER
DATA BUS
4
128
ADDRESS BUS
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