X9241A
A.C. CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Limits
Reference
Figure
Symbol
Parameter
Min.
0
Max.
Unit
kHz
ns
(5)
f
SCL clock frequency
Clock LOW period
Clock HIGH period
100
10
10
SCL
(5)
t
4700
4000
LOW
(5)
t
ns
10
HIGH
(5)
t
SCL and SDA rise time
1000
300
20
ns
10
R
(5)
t
SCL and SDA fall time
ns
10
F
T (5)(9)
Noise suppression time constant (glitch filter)
Start condition setup time (for a repeated start condition)
Start condition hold time
ns
10
i
(5)
(5)
(5)
(5)
t
4700
4000
250
0
ns
10 & 12
10 & 12
10
SU:STA
HD:STA
SU:DAT
t
t
ns
Data in setup time
ns
t
Data in hold time
ns
10
HD:DAT
(5)
t
SCL LOW to SDA data out valid
Data out hold time
3500
ns
11
AA
(5)
t
50
ns
11
DH
(5)
t
Stop condition setup time
4700
4700
ns
10 & 12
10
SU:STO
(5)
t
Bus free time prior to new transmission
Write cycle time (nonvolatile write operation)
Wiper response time from stop generation
Wiper response from SCL LOW
ns
BUF
(5)
t
10
500
1000
50
ms
µs
13
WR
(5)
t
13
STPWV
(5)
t
µs
6
CLWV
t V
V power-up rate
CC
0.2
mV/µs
R
CC
Figure 10. Input Bus Timing
t
t
t
R
t
LOW
F
HIGH
SCL
t
t
t
t
t
SU:STO
SU:STA
HD:STA
HD:DAT
SU:DAT
SDA
(Data in)
t
BUF
Figure 11. Output Bus Timing
SCL
t
t
DH
AA
SDA
(ACK)
SDA
OUT
SDA
SDA
OUT
OUT
Characteristics subject to change without notice. 13 of 18
REV 1.1.13 12/09/02
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