ISL1218 Intersil Corporation, ISL1218 Datasheet - Page 5

• Manufacturer Part Number: ISL1218
• Description: I2C Real Time Clock/Calendar
• Manufacturer: Intersil Corporation

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SDA vs SCL Timing
Symbol Table
WAVEFORM
(OUTPUT TIMING)
(INPUT TIMING)
SDA
SCL
SDA
t
INPUTS
Must be steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes Allowed
N/A
SU:STA
5
t
HD:STA
t
OUTPUTS
Will be steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not Known
Center Line is
High Impedance
F
t
SU:DAT
t
HIGH
ISL1218
t
LOW
t
HD:DAT
t
R
t
AA
t
DH
t
BUF
t
SU:STO
June 22, 2006
FN6313.0