Harman Kardon HK 3370, Service Manual

Page: 98 / 123

BR24C01A-W / BR24C01AF-W / BR24C01AFJ-W / BR24C01AFV-W / BR24C02-W / BR24C02F-W /
Memory ICs
BR24C02FJ-W / BR24C02FV-W / BR24C04-W / BR24C04F-W / BR24C04FJ-W / BR24C04FV-W
!
! !
! Recommended operating conditions (Ta = 25 ° C)
Parameter Symbol Limits Unit
Power supply voltage
V
V
Input voltage V
IN
V
V
CC
0 ~V
CC
2.7 ~5.5 (WRITE)
2.7 ~5.5 (READ)
! ! ! ! Block diagram
BR24C01A-W / AF-W / AFJ-W / AFV-W
1kbits EEPROM ARRAY
CONTROL LOGIC
HIGH VOLTAGE GEN.
ACK
START STOP
7bits
7bits
8bits
DATA
REGISTER
ADDRESS
DECODER
A0
A1
A2
1
2
3
4 GND
WP
SCL
SDA
8
7
6
5
V
CC
V
CC
LEVEL DETECT
ADDRESS REGISTER
SLAVE WORD
·
BR24C02-W / F-W / FJ-W / FV-W
2kbits EEPROM ARRAY
CONTROL LOGIC
HIGH VOLTAGE GEN.
ACK
START STOP
8bits
8bits
8bits
DATA
REGISTER
ADDRESS
DECODER
A0
A1
A2
1
2
3
4 GND
WP
SCL
SDA
8
7
6
5
V
CC
V
CC
LEVEL DETECT
ADDRESS REGISTER
SLAVE WORD
·
BR24C04-W / F-W / FJ-W / FV-W
4kbits EEPROM ARRAY
CONTROL LOGIC
HIGH VOLTAGE GEN.
ACK
START STOP
9bits
9bits
8bits
DATA
REGISTER
ADDRESS
DECODER
A0
A1
A2
1
2
3
4 GND
WP
SCL
SDA
8
7
6
5
V
CC
V
CC
LEVEL DETECT
ADDRESS REGISTER
SLAVE WORD
·
! ! ! ! Pin descriptions
Pin name Function
A0, A1, A2 Slave address setting pin
SCL Serial data clock
SDA Serial data input / output
WP Write protect pin
V
CC
Power supply
GND Ground
∗
An open drain output requires a pull-up resistor.
∗
Slave address setting pin
SCL
SDA
WP Write protect pin
Power supply
GND Ground
Pin name Function
Serial data clock
Serial data input / output
A0, A1, A2
V
CC
∗
An open drain output requires a pull-up resistor.
∗
Pin name
A0 N.C.
SCL
SDA
WP Write protect pin
Power supply
GND Ground
Function
A1, A2 Slave address setting pin
Serial data clock
Serial data input / output
V
CC
∗
An open drain output requires a pull-up resistor.
∗
hk3370/hk3470 harman/kardon
98