参数资料
型号: BD8132FV-E2
厂商: Rohm Semiconductor
文件页数: 15/23页
文件大小: 0K
描述: IC PWR SUP CORRECTION SSOP-B40
标准包装: 2,000
系列: *
BD8132FV, BD8139AEFV
● Timing standard values
FAST-MODE
Technical Note
Parameter
Symbol
2.3 V ≤ DV CC ≤ 4.0 V
Unit
Min. Typ. Max.
SCL frequency
SCL high time
SCL low time
Rise Time
Fall Time
Start condition hold time
Start condition setup time
SDA hold time
SDA setup time
Acknowledge delay time
Acknowledge hold time
Stop condition setup time
Bus release time
fSCL
tHIGH
tLOW
tR
tF
tHD:STA
tSU:STA
tHD:DAT
tSU:DAT
tPD
tDH
tSU:STO
tBUF
0.6
1.2
0.6
0.6
100
100
0.1
0.1
0.6
1.2
400
0.3
0.3
0.9
kHz
μs
μs
μs
μs
μs
μs
ns
ns
μs
μs
μs
μs
● Power supply sequence
Activate the digital power supply DV CC before the V CC power supply to prevent IC malfunctions due to undefined logic in the digital
circuit. Input serial data after canceling the power-on reset. When turning off the IC's power supplies, turn off V CC and then DV CC .
V CC
???
tVcc
???
tVD
REFIN
???
tVR
???
tRV
DV CC
SCL
SDA
tDS
???
???
???
tSV
???
???
???
Fig. 34 Power Supply Sequence Diagram
● Power supply sequence standard values
Parameter
Serial input timing
V CC activation timing
REFIN activation timing
REFIN off timing
Power supply off timing
V CC startup timing
Symbol
tDS
tSV
tVR
tRV
tVD
tV CC
Min.
100
0
0
0
0
1
Limit
Typ.
10
10
10
10
Max.
Unit
μs
μs
μs
μs
μs
ms
Condition
Cct = 1000 pF
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
15/20
2009.07 - Rev.B
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