SMB218 View Datasheet(PDF) - Summit Microelectronics
Part Name
Description
Manufacturer
SMB218 Datasheet PDF : 37 Pages
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PLEASE NOTE: The SMB118 has entered End-of-Life.
SMB118/218
I2C-2 WIRE SERIAL INTERFACE AC OPERATING CHARACTERISTICS –100 kHz
(Over commercial operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol Description
Conditions
100kHz
Min Typ Max
fSCL
TLOW
THIGH
SCL clock frequency
Clock low period
Clock high period
0
100
4.7
4.0
tBUF
tSU:STA
Bus free time
Start condition setup time
Before new transmission - Note 4.7
5
4.7
tHD:STA
Start condition hold time
4.0
tSU:STO
Stop condition setup time
4.7
tAA
Clock edge to data valid
SCL low to valid SDA (cycle n) 0.2
3.5
tDH
tR
tF
tSU:DAT
tHD:DAT
TI
Data output hold time
SCL and SDA rise time
SCL and SDA fall time
Data in setup time
Data in hold time
Noise filter SCL and SDA
SCL low (cycle n+1) to SDA
change
Note 5
Note 5
Noise suppression
0.2
1000
300
250
0
100
tWR_CONFIG Write cycle time config
Configuration registers
10
tWR_EE
Write cycle time EE
Memory array
5
Units
KHz
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ms
ms
Note 5: Guaranteed by Design
I2C TIMING DIAGRAMS
tR
TIMSICNLG DIAGRAMS
tSU:STA
SDA (IN)
tAA
SDA (OUT)
tF
tHD:STA
Figure 3 − I2C timing diagram
tHIGH
tHD:DAT
tLOW
tSU:DAT
tDH
tSU:STO
tWR (For Write Operation Only)
tBUF
Summit Microelectronics, Inc
2107 3.0 10/15/2008
17
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