BR24A04-WM 查看數據表（PDF） - ROHM Semiconductor
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BR24A04-WM Datasheet PDF : 32 Pages
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BR24Axxx-WM (1K 2K 4K 8K 16K 32K 64K)
●Block Diagram
*2 A0 1
*2 A1 2
*1
7bit 11bit
8bit 12bit
9bit 13bit
10bit
Address
decoder
1Kbit to 64Kbit EEPROM array
7bit 11bit
*1 8bit 12bit
9bit 13bit
10bit
Slave - word
address register
8bit
Data
register
*2 A2 3
GND 4
START
STOP
Control circuit
ACK
High voltage
generating circuit
Power source
voltage detection
*1 7bit : BR24A01A-WM
8bit : BR24A02-WM
9bit : BR24A04-WM
10bit : BR24A08-WM
11bit : BR24A16-WM
12bit : BR24A32-WM
13bit : BR24A64-WM
*2 A0=N.C.
A0, A1=N.C.
A0, A1= N.C. A2=Don’t Use
: BR24A04-WM
: BR24A08-WM
: BR24A16-WM
8 Vcc
7 WP
6 SCL
5 SDA
●Pin Configuration
(TOP VIEW)
A0 1
A1 2
A2 3
BR24A01A-W M
BR24A02-W M
BR24A04-W M
BR24A08-W M
BR24A16-W M
BR24A32-W M
BR24A64-W M
GND 4
8 Vcc
7 WP
6 SCL
5 SDA
●Pin Descriptions
Terminal Input /
name output
Function
BR24A01A-WM BR24A02-WM BR24A04-WM BR24A08-WM BR24A16-WM BR24A32-WM BR24A64-WM
A0
Input
Slave address setting
Not connected
Slave address setting
A1
Input
Slave address setting
Not connected
Slave address setting
A2
Input
Slave address setting
Not used
Slave address setting
GND
SDA
SCL
-
Input /
output
Input
Reference voltage of all input / output, 0V
Slave and word address, Serial data input serial data output
Serial clock input
WP
Input
Write protect terminal
Vcc
-
Connect the power source.
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TSZ02201-0R1R0G100140-1-2
29.Jan.2018 Rev.003
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