MAX7301 Maxim, MAX7301 Datasheet - Page 3

• Manufacturer Part Number: MAX7301
• Description: The MAX7301 compact, serial-interfaced I/O expander (or general-purpose I/O (GPIO) peripheral) provides microprocessors with up to 28 ports
• Manufacturer: Maxim

TIMING CHARACTERISTICS (Figure 3)
(V+ = 2.5V to 5.5V, T
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.5V to 5.5V, T
Note 1: All parameters tested at T
Note 2: Guaranteed by design.
Port Sink Current
Output Short-Circuit Current
Input High-Voltage SCLK, DIN,
CS
Input Low-Voltage SCLK, DIN,
CS
Input Leakage Current SCLK,
DIN, CS
Output High-Voltage DOUT
Output Low-Voltage DOUT
CLK Clock Period
CLK Pulse Width High
CLK Pulse Width Low
CS Fall to SCLK Rise Setup Time
CLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
Output Data Propagation Delay
Minimum CS Pulse High
PARAMETER
PARAMETER
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
A
_______________________________________________________________________________________
= T
MIN
to T
MAX
A
= +25°C. Specifications over temperature are guaranteed by design.
SYMBOL
SYMBOL
, unless otherwise noted.) (Note 1)
I
I
IH
t
OLSC
V
t
t
V
CSW
V
t
t
t
I
V
t
t
CSS
CSH
t
CH
DH
DO
OL
OH
CP
CL
DS
, I
OL
IH
IL
IL
A
= T
V
Port configured output low, shorted to V+
V+ ≤ 3.3V
V+ > 3.3V
I
I
C
SOURCE
SINK
PORT
LOAD
MIN
= 1.6mA
to T
= 0.6V
= 25pF
= 1.6mA
MAX
, unless otherwise noted.) (Note 1)
CONDITIONS
CONDITIONS
28-Port I/O Expander
2.75
V+ -
MIN
MIN
38.4
1.6
-50
0.5
9.5
9.5
19
19
19
2
2
0
0
TYP
TYP
10
11
20.00
MAX
MAX
+50
0.6
0.4
18
21
UNITS
UNITS
mA
mA
nA
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
3