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参数资料
| 型号： | BR34L02FV-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 2/18页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2KBIT 400KHZ 8SSOP |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-LSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-SSOPB |
| 包装： | 标准包装 |
| 产品目录页面： | 1379 (CN2011-ZH PDF) |
| 其它名称： | BR34L02FV-WE2DKR |
BR34L02FV-W
● E lectrical characteristics - DC(Unless otherwise specified Ta=-40 ℃～ +85 ℃ , V CC =1.7 V ～ 5.5V)
Technical Note
Parameter Symbol
Specification
Min. Typ. Max.
Unit
Test Condition
"H" Input Voltage 1
"L" Input Voltage 1
"H" Input Voltage 2
"L" Input Voltage 2
"L" Output Voltage 1
"L" Output Voltage 2
Input Leakage Current 1
Input Leakage Current 2
Output Leakage Current
VIH1
VIL1
VIH2
VIL2
VOL1
VOL2
ILI1
ILI2
ILO
0.7 V CC
-
0.8 V CC
-
-
-
-1
-1
-1
-
-
-
-
-
-
-
-
-
-
0.3 V CC
-
0.2 V CC
0.4
0.2
1
15
1
V
V
V
V
V
V
μA
μA
μA
2.5V ≦ V CC ≦ 5.5V
2.5V ≦ V CC ≦ 5.5V
1.7V ≦ V CC ＜ 2.5V
1.7V ≦ V CC ＜ 2.5V
IOL=3.0mA ， 2.5V ≦ V CC ≦ 5.5V(SDA)
IOL=0.7mA ， 1.7V ≦ V CC ＜ 2.5V(SDA)
VIN=0V ～ V CC (A0,A1,A2,SCL)
VIN=0V ～ V CC (WP)
VOUT=0V ～ V CC (SDA)
V CC =5.5V,fSCL=400kHz ， tWR=5ms
ICC1
-
-
2.0
mA
Byte Write
Page Write
Operating Current
Write Protect
V CC =5.5V,fSCL=400kHz
ICC2
-
-
0.5
mA
Random Read
Current Read
Sequential Read
Standby Current
ISB
-
-
2.0
μA
V CC =5.5V,SDA,SCL= V CC
A0,A1,A2=GND,WP=GND
○ Note: This IC is not designed to be radiation-resistant.
● Electrical characteristics - AC(Unless otherwise specified Ta=-40 ℃～ +85 ℃ , V CC =1.7V ～ 5.5V)
FAST-MODE
STANDARD-MODE
Parameter Symbol
2.5V ≦ V CC ≦ 5.5V
1.7V ≦ V CC ≦ 5.5V
Unit
Min. Typ. Max. Min. Typ. Max.
Clock Frequency
Data Clock High Period
fSCL - - 400 - - 100
tHIGH 0.6 - - 4.0 - -
kHz
μs
Data Clock Low Period tLOW 1.2 - - 4.7 - -
μs
SDA and SCL Rise Time *1
SDA and SCL Fall Time *1
tR - - 0.3 - - 1.0
tF - - 0.3 - - 0.3
μs
μs
Start Condition Hold Time tHD:STA 0.6 - - 4.0 - -
Start Condition Setup Time tSU:STA 0.6 - - 4.7 - -
μs
μs
Input Data Hold Time
Input Data Setup Time
tHD:DAT 0 - - 0 - -
tSU:DAT 50 - - 50 - -
ns
ns
Output Data Delay Time
tPD
0.1 - 0.9 0.2 - 3.5
μs
Output Data Hold Time tDH 0.1 - - 0.2 - -
Stop Condition Setup Time tSU:STO 0.6 - - 4.7 - -
μs
μs
Bus Free Time
Write Cycle Time
tBUF 1.2 - - 4.7 - -
tWR - - 5 - - 5
μs
ms
Noise Spike Width (SDA and SCL) tI - - 0.1 - - 0.1
μs
WP Hold Time
WP Setup Time
WP High Period
tHD ： WP 0 - - 0 - -
tSU ： WP 0.1 - - 0.1 - -
tHIGH ： WP 1.0 - - 1.0 - -
ns
μs
μs
*1 ： Not 100 ％ TESTED
■ Fast / Standard Modes
Fast mode and Standard mode differ only in operation frequency. Operations performed at 100kHz are considered in
"Standard-mode", while those conducted at 400kHz are in "Fast-mode".
Please note that these clock frequencies are maximum values. At lower power supply voltage it is difficult to operate at high speeds.
The EEPROM can operate at 400kHz, between 2.5V and 5.5V, and at 100kHz from 1.7V-5.5V.
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
2/17
2009.04 - Rev.A
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