MAX7300AAI+ Maxim Integrated Products, MAX7300AAI+ Datasheet - Page 17

• Manufacturer Part Number: MAX7300AAI+
• Description: IC I/O EXPANDER I2C 28B 28SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX7300AAI+

• Interface: I²C
• Number Of I /o: 20
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Operating Supply Voltage: 2.5 V to 5.5 V
• Power Dissipation: 727 mW
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 1.65 V to 1.75 V
• Maximum Clock Frequency: 400 KHz
• Mounting Style: SMD/SMT
• Output Current: 10 mA
• Output Voltage: 1.8 V
• Bus Frequency: 400kHz
• No. Of I/o's: 28
• Supply Voltage Range: 2.5V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 28
• 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

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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