Rainbow Electronics BR24L64FJ-W - Manual (Page 4)

BR24L64-W / BR24L64F-W / BE24L64FJ-W
Memory ICs
4/25
zBlock diagram
1 A0
A1 2
A2 3
GND 4
V CC 8
WP 7
6 SCL
SDA 5
64kbit EEPROM array
Control logic
High voltage generator Vcc level detect
13bit 8bit
ACK
STOP START
Address
decoder Slave word
address register
13bits
Data
register
Fig.2 BLOCK DIAGRAM
zPin configuration
BR24L64-W
BR24L64F-W
BR24L64FJ-W
V CC
A0
WP
A1
SCL
A2
SDA
GND
1 2 3 4
5 6 7 8
Fig.3 PIN LAYOUT
zPin name
Write protect input
Power supply
Function
Ground (0V)
Slave address set
Serial clock input
SDA
V CC
A0, A1, A2
Pin name
GND
WP
SCL
I / O
−
−
IN
IN
IN
IN / OUT
Slave and word address,
serial data input, serial data output
∗ 1 An open drain output requires a pull-up resistor.
∗ 1