MAX7300AAI Maxim Integrated Products, MAX7300AAI Datasheet - Page 17

• Manufacturer Part Number: MAX7300AAI
• Description: I/O Expanders, Repeaters & Hubs 2.5-5.5V 20/28 Port I/O Expander
• Manufacturer: Maxim Integrated Products

Specifications of MAX7300AAI

• Package / Case: SSOP-28
• Mounting Style: SMD/SMT

Figure 10. Maskable GPIO Ports P24 to P31
P29
P26
P25
P30
P28
P27
P24
P31
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
______________________________________________________________________________________
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 = 1
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
28-Port I/O Expander
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
INT STATUS STORED AS MSB OF MASK REGISTER
MASK REGISTER LSB
OR
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