Datasheet
Serial EEPROM Series Standard EEPROM
I
2
C BUS EEPROM (2-Wire)
BR24Lxxx-W Series
(1K 2K 4K 8K 16K 32K 64K)
●General
Description
2
BR24Lxxx-W series is a serial EEPROM of I C BUS interface method
●Features
2
Completely conforming to the world standard I C
BUS.
All controls available by 2 ports of serial clock
(SCL) and serial data (SDA)
Other devices than EEPROM can be connected to
the same port, saving microcontroller port
1.8V to 5.5V
*1
single power source action most
suitable for battery use
Page write mode useful for initial value write at
factory shipment
Highly reliable connection by Au pad and Au wire
Auto erase and auto end function at data write
Low current consumption
*2
At write operation (5V)
: 1.2mA (Typ.)
At read operation (5V)
: 0.2mA (Typ.)
At standby operation (5V) : 0.1μA (Typ.)
Write mistake prevention function
Write (write protect) function added
Write mistake prevention function at low voltage
Data rewrite up to 1,000,000 times
Data kept for 40 years
Noise filter built in SCL / SDA terminal
Shipment data all address FFh
*1
*2
BR24L02-W, BR24L16-W, BR24L32-W : 1.7V to 5.5V
BR24L32-W, BR24L64-W : 1.5mA
●Packages
W(Typ.) x D(Typ.) x H(Max.)
SOP8
5.00mm x 6.20mm x 1.71mm
TSSOP-B8
3.00mm x 6.40mm x 1.20mm
SOP- J8
4.90mm x 6.00mm x 1.65mm
TSSOP-B8J
3.00mm x 4.90mm x 1.10mm
SSOP-B8
3.00mm x 6.40mm x 1.35mm
MSOP8
2.90mm x 4.00mm x 0.90mm
VSON008X2030
2.00mm x 3.00mm x 0.60mm
●Page
write
Number of
Pages
Product
number
8Byte
BR24L01A-W
BR24L02-W
16Byte
BR24L04-W
BR24L08-W
BR24L16-W
32Byte
BR24L32-W
BR24L64-W
●BR24Lxxx-W
Series
Capacity
1Kbit
2Kbit
4Kbit
8Kbit
16Kbit
32Kbit
64Kbit
Bit
format
256×8
512×8
1K×8
2K×8
4K×8
8K×8
Type
Power source
Voltage
SOP8
●
●
●
●
●
●
●
SOP-J8
●
●
●
●
●
●
●
SSOP-B8 TSSOP-B8 MSOP8 TSSOP-B8J
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
VSON008
X2030
●
●
●
●
128×8 BR24L01A-W 1.8V to 5.5V
BR24L02-W 1.7V to 5.5V
BR24L04-W 1.8V to 5.5V
BR24L08-W 1.8V to 5.5V
BR24L16-W 1.7V to 5.5V
BR24L32-W 1.7V to 5.5V
BR24L64-W 1.8V to 5.5V
○Product
structure：Silicon monolithic integrated circuit
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½14½001
○This
product is not designed protection against radioactive rays
1/36
TSZ02201-0R2R0G100290-1-2
21.AUG.2012 Rev.001
BR24Lxxx-W Series (1K 2K 4K 8K 16K 32K 64K)
●Absolute
Maximum Ratings
(Ta=25℃)
Parameter
Symbol
Supply Voltage
V
CC
Datasheet
Ratings
-0.3 to +6.5
450 (SOP8)
450 (SOP-J8)
300 (SSOP-B8)
Unit
V
Remarks
When using at Ta=25℃ or higher 4.5mW to be reduced per 1℃.
When using at Ta=25℃ or higher 4.5mW to be reduced per 1℃.
When using at Ta=25℃ or higher 3.0mW to be reduced per 1℃.
Power Dissipation
Pd
330 (TSSOP-B8)
310 (TSSOP-B8J)
310 (MSOP8)
300 (VSON008X2030)
mW
When using at Ta=25℃ or higher 3.3mW to be reduced per 1℃.
When using at Ta=25℃ or higher 3.1mW to be reduced per 1℃.
When using at Ta=25℃ or higher 3.1mW to be reduced per 1℃.
When using at Ta=25℃ or higher 3.0mW to be reduced per 1℃.
Storage Temperature
Operating Temperature
Terminal Voltage
Tstg
Topr
‐
－65
to +125
－40
to +85
-0.3 to Vcc+1.0
℃
℃
V
●Memory
cell characteristics (Ta=25℃, Vcc=1.8V to 5.5V)
*1
Limits
Parameter
Min.
Typ.
Number of data rewrite times
*2
1,000,000
-
*2
Data hold years
40
-
○Shipment
data all address FFh
*1 BR24L02/16/32-W : 1.7V to 5.5V
*2 Not 100% TESTED
Max.
-
-
Unit
Times
Years
●Recommended
Operating Ratings
Parameter
Symbol
Power source voltage
Vcc
Input voltage
V
IN
*1 BR24L02/16/32-W : 1.7V to 5.5V
Ratings
1.8 to 5.5 *1
0 to Vcc
Unit
V
●Electrical
Characteristics
Parameter
“HIGH” input voltage 1
“LOW” input voltage 1
“HIGH” input voltage 2
“LOW” input voltage 2
“HIGH” input voltage 3
*3
“HIGH” input voltage 3
*4
“LOW” input voltage 3
*2
“LOW” output voltage 1
“LOW” output voltage 2
Input leak current
Output leak current
Current consumption at
action
(Unless otherwise specified, Ta=-40℃ to +85℃, V
CC
=1.8V to 5.5V)
*1
Limits
Symbol
Unit
Conditions
Min.
Typ.
Max.
V
IH1
V
IL1
V
IH2
V
IL2
V
IH3
V
IH3
V
IL3
V
OL1
V
OL2
I
LI
I
LO
I
CC1
I
CC2
0.7Vcc
-0.3
*2
0.8Vcc
-0.3
*2
0.8Vcc
0.9Vcc
-0.3
-
-
-1
-1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Vcc +1.0
*2
0.3 Vcc
Vcc +1.0
*2
0.2 Vcc
Vcc +1.0
Vcc +1.0
0.1 Vcc
0.4
0.2
1
1
2.0
*5
3.0
*6
V
V
V
V
V
V
V
V
V
μA
μA
mA
mA
μA
2.5≦Vcc≦5.5V
2.5≦Vcc≦5.5V
1.8≦Vcc＜2.5V
1.8≦Vcc＜2.5V
1.7≦Vcc＜1.8V
1.7≦Vcc＜1.8V
1.7≦Vcc＜1.8V
I
OL
=3.0mA, 2.5V≦Vcc≦5.5V, (SDA)
I
OL
=0.7mA, 1.7V≦Vcc＜2.5V, (SDA)
V
IN
=0V to Vcc
V
OUT
=0V to Vcc, (SDA)
Vcc=5.5V,fSCL=400kHz, tWR=5ms,
Byte write, Page write
Vcc=5.5V,fSCL=400kHz
Random read, current read,sequential read
Vcc=5.5V, SDA・SCL=Vcc
A0, A1, A2=GND, WP=GND
0.5
2.0
Standby current
I
SB
*1 BR24L02/16/32-W : 1.7V to 5.5V, *2 BR24L16/32-W, *3 BR24L02/16-W, *4 BR24L32-W
*5 BR24L01A/02/04/08/16-W, *6 BR24L32/64-W
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
2/36
TSZ02201-0R2R0G1000290-1-2
21.AUG.2012 Rev.001
BR24Lxxx-W Series (1K 2K 4K 8K 16K 32K 64K)
Datasheet
●Action
timing characteristics (Unless otherwise specified, Ta=
-
40℃ to +85℃, V
CC
=1.8V to 5.5V)
*1
FAST-MODE
STANDARD-MODE
2.5V≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
Parameter
Symbol
Min.
SCL frequency
Data clock “HIGH“ time
Data clock “LOW“ time
SDA, SCL rise time
SDA, SCL fall time
*2
*2
Unit
kHz
μs
μs
μs
μs
μs
μs
ns
ns
μs
μs
μs
μs
ms
μs
ns
μs
μs
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
400
-
-
0.3
0.3
-
-
-
-
0.9
-
-
-
5
0.1
-
-
--
Min.
-
4.0
4.7
-
-
4.0
4.7
0
250
0.2
0.2
4.7
4.7
-
-
0
0.1
1.0
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
100
-
-
1.0
0.3
-
-
-
-
3.5
-
-
-
5
0.1
-
-
-
fSCL
tHIGH
tLOW
tR
tF
tHD:STA
tSU:STA
tHD:DAT
tSU:DAT
tPD
tDH
tSU:STO
tBUF
tWR
tI
tHD:WP
tSU:WP
tHIGH:WP
-
0.6
1.2
-
-
0.6
0.6
0
100
0.1
0.1
0.6
1.2
-
-
0
0.1
1.0
Start condition hold time
Start condition setup time
Input data hold time
Input data setup time
Output data delay time
Output data hold time
Stop condition setup time
Bus release time before transfer start
Internal write cycle time
Noise removal valid period (SDA, SCL terminal)
WP hold time
WP setup time
WP valid time
*1 BR24L02/16/32-W : 1.7V to 5.5V
*2 Not 100% tested
●FAST-MODE
and STANDARD-MODE
FAST-MODE and STANDARD-MODE are of same actions, and mode is changed. They are distinguished by action speeds.
100kHz action is called STANDARD-MODE, and 400kHz action is called FAST-MODE. This action frequency is the
maximum action frequency, so 100kHz clock may be used in FAST-MODE. When power source voltage goes down, action
at high speed is not carried out, therefore, at Vcc=2.5V to 5.5V , 400kHz, namely, action is made in FASTMODE. (Action is
made also in STANDARD-MODE) Vcc=1.8V to 2.5V is only action in 100kHz STANDARD-MODE.
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
3/36
TSZ02201-0R2R0G1000290-1-2
21.AUG.2012 Rev.001
BR24Lxxx-W Series (1K 2K 4K 8K 16K 32K 64K)
●Sync
data input / output timing
tR
SCL
tHD:STA
SDA
(入力)
(input)
tBUF
(出力)
(output)
SDA
tPD
tDH
tSU:DAT
tLOW
tHD:DAT
tF
tHIGH
Datasheet
SCL
tSU:STA
SDA
tHD:STA
tSU:STO
START BIT
STOP BIT
○Input
read at the rise edge of SCL
○Data
output in sync with the fall of SCL
Figure 1-(a) Sync data input / output timing
Figure 1-(b) Start-stop bit timing
SCL
SCL
SDA
DATA(1)
D1
D0
ACK
DATA(n)
ACK
½WR
SDA
D0
Write data
ACK
½W
R
Stop condition
Start condition
WP
Stop condition
ストップコンディション
(n-th
address)
tSU：WP
½HD：WP
Figure 1-(c) Write cycle timing
SCL
DATA(1)
SDA
D1
D0
ACK
tHIGH:WP
WP
DATA(n)
ACK
tWR
Figure 1-(d) WP timing at write execution
○At
write execution, in the area from the D0 taken clock rise of the first
DATA(1), to tWR, set WP=“LOW”.
○By
setting WP “HIGH” in the area, write can be cancelled.
When it is set WP=“HIGH” during tWR, write is forcibly ended, and data
of address under access is not guaranteed, therefore write it once again.
Figure 1-(e) WP timing at write cancel
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
4/36
TSZ02201-0R2R0G1000290-1-2
21.AUG.2012 Rev.001
BR24Lxxx-W Series (1K 2K 4K 8K 16K 32K 64K)
●Block
Diagram
Datasheet
*2
A0
1
*1
1Kbit to 64Kbit EEPROM array
7bit 11bit
8bit 12bit
9bit 13b
it
10bi
t
8
8bit
Vcc
*2
A1
2
Address
decoder
*1
7bit 11bit
8bit 12bit
9bit 13b
it
10bi
t
Slave - word
address register
Data
register
7
WP
*2
START
STOP
A2
3
Control circuit
ACK
6
SCL
GND
4
＊
High voltage
generating circuit
1
7bit : BR24L01A-W 10bit : BR24L08-W
8bit : BR24L02-W
11bit : BR24L16-W
9bit : BR24L04-W
12bit : BR24L32-W
13bit : BR24L64-W
Power source
voltage detection
＊
5
: BR24L04-W
: BR24L08-W
: BR24L16-W
SDA
2
A0=N.C.
A0, A1=N.C.
A0, A1= N.C. A2=Don’t Use
●Pin
Configuration
(TOP VIEW)
A0
A1
A2
GND
1
2
3
4
1
1
1
1
8
BR24L01A-W
BR24L02-W
BR24L04-W
BR24L08-W
BR24L16-W
BR24L32-W
BR24L64-W
7
1
1
1
1
Vcc
WP
SCL
SDA
6
5
●Pin
Descriptions
Terminal
name
A0
A1
A2
GND
SDA
SCL
WP
Vcc
Input /
output
Input
Input
Input
-
Input /
output
Input
Input
-
Function
BR24L01A-W
BR24L02-W
BR24L04-W
BR24L08-W
BR24L16-W
BR24L32-W
BR24L64-W
Slave address setting
Not connected
Slave address setting
Not connected
Slave address setting
Not used
Reference voltage of all input / output, 0V
Slave address setting
Slave address setting
Slave address setting
Slave and word address, Serial data input serial data output
Serial clock input
Write protect terminal
Connect the power source.
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
5/36
TSZ02201-0R2R0G1000290-1-2
21.AUG.2012 Rev.001
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
