Datasheet

Section 17 EEPROM
Rev.5.00 Nov. 02, 2005 Page 278 of 418
REJ09B0028-0500
H'0000
H'01FF
H'FF09
H'FF10
ESAR
SDA
EEPROM Data bus
EEPROM Key
register (EKR)
Key control circuit
I
2
C bus interface
control circuit
Address bus
Y decoder
Y-select/
Sense amp.
Memory
array
User area
(512 bytes)
Slave address
register
Power-on reset
Booster circuit
EEPROM module
ESAR: Register for referring the slave address
(specifies the slave address of the memory array)
[Legend]
X decoder
SCL
Figure 17.1 Block Diagram of EEPROM