Description Of Major Ics - JVC KD-SX841R Service Manual

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3 7 63 1515 0
4.1 BR24L16F-W-X (IC703) : EEPROM
• Pin layout
VCC
A0
• Block diagram
A0
A1
A2
TE
L 13942296513
GND
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Description of major ICs

WP SCL SDA
A1 A2 GND
1
11bit
Address
2
11bit
decoder
START
3
Control circuit
4
High voltage osc circuit
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SECTION 4
2 9
8
• Pin function
Symbol I/O
VCC -
GND -
A0,A1,A2 I
SCL I
SDA I/O Serial data I/O of slave and ward address.
WP I
16kbit EEPROM allay
Slave Ward
Address resister
STOP
Q Q
3 6 7 1 3 1 5
ACK
Power supply
voltage det.
co
.
9 4 2 8
Function
Power supply.
GND
No use connect to GND.
Serial clock input.
Write protect terminal.
8 Vcc
8bit
Data
7 WP
resister
6 SCL
0 5 8 2 9 9 4 2 8
5 SDA
m
KD-SX841R
9 9
9 9
(No.49790)1-27