Datasheet

Note 1: All parameters are tested at T
A
= +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
(Typical Operating Circuit, V+ = 2.25V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SCLK Clock Period t
CP
38.4 ns
SCLK Pulse-Width High t
CH
19 ns
SCLK Pulse-Width Low t
CL
19 ns
CS Fall to SCLK Rise Setup Time t
CSS
9.5 ns
SCLK Rise to CS Rise Hold Time t
CSH
2.5 ns
DIN Setup Time t
DS
9.5 ns
DIN Hold Time t
DH
2.5 ns
Output Data Propagation Delay t
DO
19 ns
DOUT Output Rise and Fall Times t
FT
C
LOAD
= 20pF (Note 2) 10 ns
Minimum CS Pulse High t
CSW
38.4 ns
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
I/O REGISTER
4-WIRE SERIAL INTERFACE
SCLK
DIN
DOUT
CS
I/O PORTS
MAX7317
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Maxim Integrated │ 3
MAX7317 10-Port SPI-Interfaced I/O Expander with
Overvoltage and Hot-Insertion Protection
MAX7317 Block Diagram
Timing Characteristics