X40430/X40431 – Preliminary Information
A.C. CHARACTERISTICS
Symbol
Parameter
Min.
Max.
Unit
kHz
ns
µs
µs
µs
µs
µs
µs
ns
µs
µs
ns
ns
ns
µs
µs
pF
f
SCL Clock Frequency
0
400
SCL
t
Pulse width Suppression Time at inputs
SCL LOW to SDA Data Out Valid
Time the bus free before start of new transmission
Clock LOW Time
50
IN
t
0.1
0.9
AA
t
1.3
BUF
t
1.3
LOW
t
Clock HIGH Time
0.6
HIGH
t
Start Condition Setup Time
Start Condition Hold Time
Data In Setup Time
0.6
SU:STA
HD:STA
SU:DAT
HD:DAT
SU:STO
t
t
0.6
100
t
t
Data In Hold Time
0
Stop Condition Setup Time
Data Output Hold Time
0.6
t
50
20 +.1Cb(1)
20 +.1Cb(1)
0.6
DH
t
SDA and SCL Rise Time
SDA and SCL Fall Time
WP Setup Time
300
300
R
t
F
t
SU:WP
t
WP Hold Time
0
HD:WP
Cb
Capacitive load for each bus line
400
Note: (1) Cb = total capacitance of one bus line in pF.
TIMING DIAGRAMS
Bus Timing
t
t
t
t
R
F
HIGH
LOW
SCL
SDA IN
t
SU:DAT
t
t
t
SU:STO
SU:STA
HD:DAT
t
HD:STA
t
t
DH
t
AA
BUF
SDA OUT
Characteristics subject to change without notice. 17 of 24
REV 1.2.3 11/28/00
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