JVC XV-521BK Service Manual page 25

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
PE
3.Pin function
Pin no. Symbol
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 2.5M
8 NC
GND
7
DO
6
5 DI
DATA
REGISTER
INSTRUCTION
DECODE,
CONTROL
AND
CLOCK
GENERATION
BUFFERS
Function
Program enable (With built-in pull-up resistor)
Power supply
Chip selection
Cereal clock input
Cereal data input
Cereal data output
Ground
No connection
16
R/W AMPS
AND
AUTO ERASE
DECODER
ADD.
VPP SW
VREF
GENERATOR
(VCC=5V)
XV-521BK/523GD/525BK/421BK
DO
16
EEPROM
4096bit
256 x 16
VPP
1-25