MAX7320 Maxim, MAX7320 Datasheet - Page 3

• Manufacturer Part Number: MAX7320
• Description: The MAX7320 2-wire serial-interfaced peripheral features eight push-pull outputs with selectable power-up logic states
• Manufacturer: Maxim

PORT AND TIMING CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
TIMING CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
Note 1: All parameters tested at T
Note 2: Guaranteed by design.
Note 3: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
Note 4: C
Note 5: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
Port Output Data Valid
Serial Clock Frequency
Bus Free Time Between a STOP
and a START Condition
Hold Time (Repeated) START
Condition
Repeated START Condition
Setup Time
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Low to Data Out Valid
SCL Clock Low Period
SCL Clock High Period
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Pulse Width of Spike Suppressed
Capacitive Load for Each Bus
Line
RST Pulse Width
RST Rising to START Condition
Setup Time
I
2
C Port Expander with Eight Push-Pull Outputs
the undefined region of SCL’s falling edge.
b
PARAMETER
PARAMETER
= total capacitance of one bus line in pF. t
_______________________________________________________________________________________
A
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T
= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T
A
= +25°C. Specifications over temperature are guaranteed by design.
SYMBOL
SYMBOL
t
t
t
t
t
t
HD, STA
SU, STO
HD, DAT
SU, DAT
VD, DAT
SU, STA
t
t
t
t
t
f
HIGH
t
LOW
F,TX
PPV
SCL
BUF
t
RST
C
t
t
t
SP
W
R
F
b
C
(Note 3)
SCL low to SDA output valid
(Notes 2, 4)
(Notes 2, 4)
(Notes 2, 4)
(Note 5)
(Note 2)
L
≤ 100pF
R
and t
F
measured between 0.3 x V+ and 0.7 x V+, I
CONDITIONS
CONDITIONS
MIN
MIN
100
500
1.3
0.6
0.6
0.6
1.3
0.7
1
IL
of the SCL signal) to bridge
A
A
0.1C
0.1C
0.1C
SINK
TYP
20 +
20 +
20 +
TYP
= +25°C.) (Note 1)
= +25°C.) (Note 1)
50
b
b
b
≤ 6mA.
MAX
MAX
400
300
300
250
400
0.9
3.4
4
UNITS
UNITS
kHz
µs
pF
µs
µs
µs
µs
µs
ns
µs
µs
µs
ns
ns
ns
ns
ns
µs
3