MAX7317 Maxim, MAX7317 Datasheet - Page 3

• Manufacturer Part Number: MAX7317
• Description: The MAX7317 serial-interfaced peripheral provides microprocessors with 10 I/O ports rated to 7V
• Manufacturer: Maxim

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