JVC TH-A9 Service Manual page 22

TH-A9
Discription of major IC's
AK93C65AF-X(IC403) : EEPROM
1.Terminal layout
PE 1
VCC 2
CS 3
SK 4
8 pin SOP
2.Block diagram
INSTRUCTION
DI
REGISTER
CS
SK
3.Pin function
Symbol
Pin No.
1
PE
2
VCC
3
CS
4
SK
5
DI
6
DO
7
GND
8
NC
Note : The pull-up resistor of the PE pin is about 2.5 M Ω (VCC=5V)
1-22
8 NC
7 GND
DO
6
DI
5
REGISTER
INSTRUCTION
DECODE,
CONTROL
AND
CLOCK
GENERATION
Function
Program enable (With built-in pull up resistor)
Power supply
Chip selection
Serial clock input
Serial data input
Serial data output
Ground
No connection
DATA
16
R/W AMPS
AND
AUTO ERASE
ADD.
DECODER
BUFFERS
VPP SW
VREF GENERATOR
DO
16
EEPROM
4096bit
256 x 16
VPP