SC905A 데이터 시트보기 (PDF) - Semtech Corporation
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SC905A Datasheet PDF : 23 Pages
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SC905A
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Symbol
Condition
Min
Typ
Max
Units
I2C Interface(5)
Interface complies with slave mode I2C interface as described by Philips I2C specification version 2.1 dated January, 2000.
VIL
Digital Input Voltage
VIH
SDA Output Low Level
Digital Input Current
IDG
Hysteresis of Schmitt
Trigger Inputs
VHYS
Maximum Glitch
Pulse Rejection
tSP
I/O Pin Capacitance
CIN
I2C Timing(5)
IDIN (SDA) ≤ 3mA
0.4
V
1.25
V
0.4
V
-0.2
0.2
μA
0.1
V
50
ns
10
pF
Clock Frequency
SCL
400
440
kHz
SCL Low Period
tLOW
1.3
μs
SCL High Period
tHIGH
0.6
μs
Data Hold Time
tHD_DAT
0
μs
Data Setup Time
tSU_DAT
100
ns
Setup Time for Repeated
START Condition
tSU_STA
0.6
μs
Hold Time for Repeated
START Condition
tHD_STA
0.6
μs
Setup Time for
STOP Condition
tSU_STO
0.6
μs
Bus-Free Time Between
STOP and START
tBUF
1.3
μs
RESET Timeout Delay
tRD
75
100
125
ms
Power-up Delay Between
PAD, ANA, TXCO
tDELAY
Delay Between
Each Output Activating
100
μs
Maximum Glitch
Pulse Rejection
tSP
50
ns
Interface Start-up Time
tEN
Bus Start-up Time After EN Pin
is Pulled High
350
μs
Notes:
(1) Applies to pin names, ON, HFPWR, CHPWR, PGOOD, VCSEL, VPSEL, EN_MOT, EN_TCXO.
(2) Applies to pin names, PWRON, RESB.
(3) For V settings see Table A.
OUT
(4) For VOUT settings see Table B.
(5) Guaranteed by design.
© 2006 Semtech Corp.
6
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