SMB135N データシートの表示（PDF） - Summit Microelectronics
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SMB135N
Summit Microelectronics
SMB135N Datasheet PDF : 34 Pages
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SMB135
I2C-2 WIRE SERIAL INTERFACE AC OPERATING CHARACTERISTICS – 400 kHz
TA= 0°C to +85°C, VIN = +5.0V, VFLOAT = +4.2V unless otherwise noted. All voltages are relative to GND.
Symbol
Description
Conditions
400kHz
Min Typ Max
fSCL
SCL clock frequency
0
400
TLOW
Clock low period
1.3
THIGH
Clock high period
0.6
tBUF
tSU:STA
tHD:STA
Bus free time between a STOP Before new transmission – Note
and a START condition
6
1.3
Start condition setup time
0.6
Start condition hold time
0.6
tSU:STO
Stop condition setup time
0.6
tAA
Clock edge to data valid
SCL low to valid SDA (cycle n)
0.2
0.9
tDH
Data output hold time
SCL low (cycle n+1) to SDA
change
0.2
tR
SCL and SDA rise time
Note 6
20 +
0.1Cb
300
tF
SCL and SDA fall time
Note 6
20 +
0.1Cb
300
tSU:DAT
Data in setup time
100
tHD:DAT
Data in hold time
0
0.9
TI
Noise filter SCL and SDA
Noise suppression
140
tWR_CONFIG
Write cycle time config
Configuration registers
10
tWR_EE
Write cycle time EE
Memory array
5
Note 6: Guaranteed by Design.
Units
kHz
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
ns
ms
ms
I2C TIMING DIAGRAMS
tR
SCL
tSU:STA
SDA (IN)
SDA (OUT)
tF
tHD:STA
tAA
tHIGH
tHD:DAT
tLOW
tSU:DAT
tDH
tSU:STO
tWR (For Write Operation Only)
tBUF
Figure 4 – I2C Timing Diagrams
Summit Microelectronics, Inc
2106 3.1 11/4/2008
10
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