MAX7300 Maxim, MAX7300 Datasheet - Page 5

• Manufacturer Part Number: MAX7300
• Description: The MAX7300 compact, serial-interfaced, I/O expansion peripheral provides microprocessors with up to 28 ports
• Manufacturer: Maxim

(R
ISET
= 39kΩ, T
A
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
1000
100
18
16
14
12
10
10
8
6
4
2
-40.0
-40.0
GPO SINK CURRENT vs. TEMPERATURE
-12.5
-12.5
V
V+
= 2.5V TO 5.5V, V
GPI PULLUP CURRENT
vs. TEMPERATURE
15.0
TEMPERATURE (°C)
15.0
TEMPERATURE (°C)
V
(OUTPUT = 0)
V+
= 5.5V
V
42.5
42.5
V+
V
= 3.3V
V+
PORT
= 2.5V
Typical Operating Characteristics (continued)
70.0
70.0
= 0.6V
97.5
97.5
125.0
125.0
100
10
28-Port I/O Expander
9
8
7
6
5
4
3
2
1
GPO SOURCE CURRENT vs. TEMPERATURE
-40.0
-40.0
V
PORT
SHORTED TO GND
GPO = 1, PORT
GPO SHORT-CIRCUIT CURRENT
-12.5
-12.5
= 1.4V
vs. TEMPERATURE
15.0
V
15.0
TEMPERATURE (°C)
TEMPERATURE (°C)
V+
(OUTPUT = 1)
= 5.5V
V
V+
42.5
42.5
SHORTED TO V+
GPO = 0, PORT
= 3.3V
V
70.0
70.0
V+
= 2.5V
97.5
97.5
125.0
125.0
5