ST7DALI
5 DATA EEPROM
5.1 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.
Figure 5. EEPROM Block Diagram
5.2 MAIN FEATURES
■ 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
■ Readout protection
HIGH VOLTAGE
PUMP
EECSR
0
0
0
0
0
0 E2LAT E2PGM
ADDRESS
DECODER
4
ROW
DECODER
4
4
ADDRESS BUS
EEPROM
MEMORY MATRIX
(1 ROW = 32 x 8 BITS)
128
DATA
MULTIPLEXER
128
32 x 8 BITS
DATA LATCHES
DATA BUS
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