JVC CH-X1500 Service Manual page 33

4.4 BR24C01AFV-W-X (IC503) : EEPROM
• Pin layout
Vcc WP
A0 A1
• Block diagram
A0 1
A1 2
A2 3
GND 4
• Pin function
Pin name I/O
Vcc -
GND -
A0A1A2 IN
SCL IN
SDA IN / OUT
WP IN
*1 An open drain output requires a pull-up resister.
SCL SDA
A2 GND
1kbit EEPROM ARRAY
7bit
ADDRESS SLAVE/WORD
7bit
DECODER ADDRESS REGISTER
START
CONTROL LOGIC
HIGH VOLTAGE GEN. Vcc LEVEL DETECT
Power supply
Ground (0v)
Slave address set
Serial clock input
Slave and word addressserial data input serial data output *1
Write protect input
8bit
DATA
REGISTER
STOP
ACK
Description
CH-X1500
8 Vcc
7 WP
6 SCL
5 SDA
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