JVC KD-LH7R Service Manual page 25

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BR24C32F-X (IC771) : EEPROM
1. Pin layout
Vdd WPIN
A0 A1
3. Block diagram
A0 1
A1 2
A2 3
TE
L 13942296513
GND 4
High voltage osc circuit
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2. Pin function
SCL SDA
A0,A1,A2
A2 GND
16kbit EEPROM allay
11bit
Address
Slave Word
11bit
decoder
Address resister
STOP
START
Control circuit
Power supply
voltage det.
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2 9
8
Symbol I/O
Vdd - Power supply.
GND - GND
I No use connect to GND.
SCL I Serial clock input.
SDA I/O Serial data I/O of slave and word address.
WPIN I Write protect terminal.
8bit
Data
resister
Q Q
ACK
3 6 7 1 3
.
9 4 2 8
Function
8 Vdd
7 WPIN
6 SCL
1 5 0 5 8 2 9 9 4
5 SDA
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KD-LH7R
9 9
2 8 9 9
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