参数资料
型号: BU9889GUL-WE2
厂商: Rohm Semiconductor
文件页数: 3/26页
文件大小: 0K
描述: IC EEPROM 8KBIT 2WIRE VCSP50L1
标准包装: 3,000
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 8K (1K 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: 6-UFBGA,CSPBGA
供应商设备封装: VCSP50L1
包装: 带卷 (TR)
BU9889GUL-W (8Kbit)
● Sync Data Input / Output Timing
Datasheet
SCL
tR
tF
tHIGH
SCL
tHD:STA
tSU:DAT
tLOW
tHD:DAT
DATA(1)
DATA(n)
SDA
(入
(Input) 力)
tBUF
tPD
tDH
SDA
D1
D0
ACK
ACK
t WR
SDA
(Output) 力)
○ Input read at the rise edge of SCL
○ Data output in sync with the fall of SCL
WP
tSU : WP
ス プコン デ
Stop トッ condition ィション
t HD : WP
Figure 1-(a) Sync data input / output timing
SCL
SCL
Figure 1-(d) WP timing at write execution
tSU:STA
tHD:STA
tSU:STO
DATA(1)
DATA(n)
SDA
START BIT
STOP BIT
SDA
WP
D1
D0
ACK
tHIGH:WP
ACK
tWR
At write execution, in the area from the D0 taken clock rise of the first DATA(1),
to tWR, set WP= 'LOW'.
Figure 1-(b) Start - stop bit timing
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
SCL
SDA
D0
ACK
WRITE DATA(n)
STOP
CONDITION
t WR
START
CONDITION
Figure 1-(c) Write cycle timing
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
3/23
TSZ02201-0R2R0G100490-1-2
05.SEP.2012 Rev.001
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