MCP23009-E/SS Microchip Technology, MCP23009-E/SS Datasheet - Page 22

• Manufacturer Part Number: MCP23009-E/SS
• Description: IC I/O EXPANDER I2C 8B 20SSOP
• Manufacturer: Microchip Technology

Specifications of MCP23009-E/SS

• Package / Case: 20-SSOP
• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 3.4MHz
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Logic Family: Interface ICs
• Propagation Delay Time: 50 ns
• Operating Supply Voltage: 1.8 V to 5.5 V
• Power Dissipation: 700 mW
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 1.8 V to 5.5 V
• Logic Type: I/O Expander
• Maximum Clock Frequency: 10 MHz
• Maximum Operating Frequency: 3.4 MHz
• Mounting Style: SMD/SMT
• Output Current: 200 mA
• Output Voltage: 0.6 V to 4.8 V
• Chip Configuration: 8 Bit
• Bus Frequency: 3.4MHz
• Ic Interface Type: I2C
• No. Of I/o's: 8
• Supply Voltage Range: 1.8V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 20
• Interface Type: I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP23009/MCP23S09
1.6.7
The GPPU register controls the pull-up resistors for the
port pins. If a bit is set the corresponding port pin is
internally pulled up with an internal resistor.
REGISTER 1-7:
FIGURE 1-10:
DS22121B-page 22
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-0
R/W-0
PU7
400
350
300
250
200
150
100
PULL-UP RESISTOR
CONFIGURATION REGISTER
50
0
PU7:PU0: Controls the internal pull-up resistors on each pin (when configured as an input or output)
<7:0>.
1 = Pull-up enabled
0 = Pull-up disabled
1.5
R/W-0
GPIO Pin Internal Pull-up Current vs V
PU6
GPPU – GPIO PULL-UP RESISTOR REGISTER
TYPICAL PERFORMANCE CURVE FOR THE INTERNAL PULL-UP RESISTORS
2
W = Writable bit
‘1’ = Bit is set
R/W-0
PU5
2.5
R/W-0
PU4
3
V
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
DD
3.5
R/W-0
PU3
(V)
T = +25°C
4
R/W-0
PU2
T = +85°C
4.5
© 2009 Microchip Technology Inc.
T = -40°C
x = Bit is unknown
DD
R/W-0
PU1
T = +125°C
5
R/W-0
5.5
PU0
bit 0