SN7325 Si-En, SN7325 Datasheet - Page 6

• Manufacturer Part Number: SN7325
• Description: Multi Function I/O Driver
• Manufacturer: Si-En

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Timing Characteristics
(V
Port and Interrupt INT
(V
Note 1: All parameters are tested at T
Note 2: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
in order to bridge the undefined region of SCL’s falling edge.
Note 3: Guaranteed by design.
Note 4: Cb = total capacitance of one bus line in pF. I
V
Note 5: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
Jan. 2009, Ver1.0
CC
CC
CC
Symbol
t
t
t
t
t
HD, DAT
HD, STA
SU, DAT
.
SU, STA
SU, STO
t
t
t
f
t
t
HIGH
LOW
F, TX
= 2.4V to 5.5V, unless otherwise noted. Typical values are at V
= 2.4V to 5.5V, unless otherwise noted. Typical values are at V
BUF
t
C
SCL
t
_ _ _ _ __ _
RST
t
t
SP
W
————
R
F
INT
b
Reset Delay Time from Acknowledge
————
INT
Rise Time of Both SDA and SCL Signals,
Hold Time (Repeated) START Condition
Fall Time of Both SDA and SCL Signals,
Repeated START Condition Setup Time
________
RST
Port Output Data Valid
Port Input Setup Time
Bus Free Time Between a STOP and a
Port Input Hold Time
Capacitive Load for Each Bus Line
Pulse Width of Spike Suppressed
Input Data Valid Time
Fall Time of SDA Transmitting
STOP Condition Setup Time
Rising to START Condition Setup
Parameter
_______
Serial-Clock Frequency
SCL Clock High Period
SCL Clock Low Period
START Condition
________
RST
Data Setup Time
Data Hold Time
Timing Characteristic
Parameter
Receiving
Receiving
Pulse Width
Time
A
= 25°C. Specifications over temperature are guaranteed by design.
Symbol
SINK
t
t
t
PSU
t
t
PV
PH
IV
IR
6
≤ 6mA. t
Condition
(Note 2)
(Note 4)
(Note 4)
(Note 4)
(Note 5)
C
C
C
C
C
Condition
CC
L
L
L
L
L
CC
≤ 100pF
≤ 100pF
≤ 100pF
≤ 100pF
≤ 100pF
R
= 3.3V, T
and t
= 3.3V, T
F
Min.
100
500
measured between 0.3 × V
1.3
0.6
0.6
0.6
1.3
0.7
1
A
A
= 25°C.) (Note 3)
Min.
= 25°C.) (Note 3)
0
4
20 + 0.1Cb
20 + 0.1Cb
20 + 0.1Cb
Typ.
Typ.
50
Max.
IL
SI-EN technology
4
4
4
Max.
of the SCL signal)
400
300
300
250
400
0.9
SN7325
CC
Untis
μs
μs
μs
μs
μs
and 0.7×
Units
kHz
pF
μs
μs
μs
μs
μs
ns
μs
μs
ns
ns
ns
ns
ns
μs