MAX7301AAX+ Maxim Integrated Products, MAX7301AAX+ Datasheet - Page 12

• Manufacturer Part Number: MAX7301AAX+
• Description: I/O Expanders, Repeaters & Hubs IC I/O EXPANDER SPI 28B
• Manufacturer: Maxim Integrated Products

Specifications of MAX7301AAX+

• Number Of Lines (input / Output): 20 / 20
• Propagation Delay Time: 21 ns
• Operating Supply Voltage: 2.5 V to 5.5 V
• Power Dissipation: 941 mW
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 0.6 V to 2 V
• Logic Type: I/O Expander
• Mounting Style: SMD/SMT
• Number Of Input Lines: 20
• Number Of Output Lines: 20
• Output Voltage: 0.4 V to 2 V
• Package / Case: SSOP-36
• Bus Frequency: 26MHz
• No. Of I/o's: 28
• Supply Voltage Range: 2.5V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 36
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Ic Function: I/O Expander
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port I/O Expander
12
Figure 5. Maskable GPIO Ports P24 Through P31
______________________________________________________________________________________
P29
P26
P25
P30
P28
P27
P24
P31
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
CONFIGURATION REGISTER M BIT = SET
CONDITIONING
GPIO INPUT
OUTPUT LATCH
OUTPUT LATCH
GPIO/PORT
INT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
R
S
CLOCK PULSE WHEN WRITING CONFIGURATION REGISTER WITH M BIT SET
D
D
D
D
D
D
D
Q
Q
Q
Q
Q
Q
Q
MASK REGISTER BIT 6
MASK REGISTER BIT 5
MASK REGISTER BIT 4
MASK REGISTER BIT 3
MASK REGISTER BIT 2
MASK REGISTER BIT 1
GPIO/PORT OUT
CLOCK PULSE AFTER EACH READ ACCESS TO MASK REGISTER
GPIO IN
MASK REGISTER LSB
OR