JVC KD-LX300 Service Manual page 9

KD-LX300/KD-LX100
BR24C16F-X (IC703) : EEPROM
1. Pin layout
VCC WP
A0 A1
3. Block diagram
A0 1
A1 2
A2 3
GND 4
High voltage osc circuit
BU4066BCFV-X (IC322) : Quad analog switch
1. Pin layout & Block diagram
VDD
14
1
I/O1
1-28
2. Pin function
SCL SDA
A2 GND
16kbit EEPROM allay
11bit
Address
Slave Ward
11bit
decoder
Address resister
STOP
START
Control circuit
Power supply
voltage det.
C1 C4
13 12
2 3
O/I1 O/I2
Symbol I/O
VCC - Power supply.
GND - GND
A0,A1,A2 I No use connect to GND.
SCL I Serial clock input.
SDA I/O Serial data I/O of slave and ward address.
WP I Write protect terminal.
8bit
Data
resister
ACK
I/O4 O/I4 O/I3
11 10 9
4 5 6
I/O2 C2 C3
Function
8 Vcc
7 WP
6 SCL
5 SDA
I/O3
8
7
Vss