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BR24L128F-WE2 Datasheet(PDF) 6 Page - Rohm

Part # BR24L128F-WE2
Description  High Reliability Series EEPROMs I2C BUS
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BR24L128F-WE2 Datasheet(HTML) 6 Page - Rohm

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Technical Note
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www.rohm.com
2009.09 - Rev.D
© 2009 ROHM Co., Ltd. All rights reserved.
BR24L□□-W Series,BR24S□□□-W Series
Block diagram
Fig.2 Block diagram
Pin assignment and description
Terminal
name
Input /
output
Function
BR24L01A-W
BR24L02-W
BR24L04-W
BR24L08-W
BR24L16-W
BR24L32-W
BR24L64-W
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
-
Reference voltage of all input / output, 0V
SDA
Input /
output
Slave and word address, Serial data input serial data output
SCL
Input
Serial clock input
WP
Input
Write protect terminal
Vcc
-
Connect the power source.
1Kbit~64Kbit EEPROM array
Control circuit
High voltage
generating circuit
Power source
voltage detection
7bit
8bit
9bit
10bi
t
11bit
12bit
13b
it
Address
decoder
Slave - word
address register
Data
register
8bit
7bit
8bit
9bit
10bi
t
11bit
12bit
13b
it
START
STOP
ACK
*1
*1
1
2
3
4
8
7
6
5
SDA
SCL
WP
Vcc
A1
A0
A2
GND
*2
*2
*2
1 7bit : BR24L01A-W
8bit : BR24L02-W
9bit : BR24L04-W
10bit : BR24L08-W
11bit : BR24L16-W
12bit : BR24L32-W
13bit : BR24L64-W
2 A0=N.C.
: BR24L04-W
A0, A1=N.C.
: BR24L08-W
A0, A1= N.C. A2=Don’t Use
: BR24L16-W
1
1
1
2
1
3
1
4
1
8
1
6
1
5
BR24L01A-W
BR24L02-W
BR24L04-W
BR24L08-W
BR24L16-W
BR24L32-W
BR24L64-W
A0
1
7
A1
A2
GND
Vcc
WP
SCL
SDA


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