Part: MCP23017/MCP23S17

Type: 16-Bit I/O Expander with Serial Interface

Description: A 16-bit remote bidirectional I/O port expander offering high-speed I2C interface up to 1.7 MHz (MCP23017) or high-speed SPI interface up to 10 MHz (MCP23S17), operating from 1.8V to 5.5V with low 1 μA standby current.

Operating Conditions:

• Supply voltage: 1.8V to 5.5V (at -40°C to +85°C); 4.5V to 5.5V (at -40°C to +125°C)
• Operating temperature: -40°C to +125°C (for 4.5V to 5.5V VDD)
• Max I2C clock frequency: 1.7 MHz (at 4.5V to 5.5V VDD)
• Max SPI clock frequency: 10 MHz (at 2.7V to 5.5V VDD)

Absolute Maximum Ratings:

• Max supply voltage: +5.5V
• Max continuous current: 150 mA (out of VSS pin), 125 mA (into VDD pin), 25 mA (per output pin)
• Max storage temperature: +150°C

Key Specs:

• Supply Voltage (V DD): 1.8V to 5.5V
• Standby current (I DDS8): 1 μA (max) at -40°C to +85°C
• I/O port pins leakage current (I IL, I LO): ±1 μA (max)
• GPIO weak pull-up current (I PU): 40 μA (min) to 115 μA (max) at V DD = 5V
• GPIO Output Low Voltage (V OL): 0.6 V (max) at I OL = 8.0 mA, V DD = 4.5V
• I2C Bus Capacitive Loading (C B): 400 pF (max) for 100 kHz and 400 kHz modes
• SPI Clock Frequency (F CLK): Up to 10 MHz (at 2.7V to 5.5V VDD)

Features:

• AEC-Q100 Qualified
• 16-Bit Remote Bidirectional I/O Port
• Three Hardware Address Pins to Allow Up to Eight Devices On the Bus
• Configurable Interrupt Output Pins
• Polarity Inversion Register
• External Reset Input
• Low Standby Current: 1 μA (max.)

Applications:

Package:

• 28-pin QFN, 6 x 6 mm Body
• 28-pin SOIC, Wide, 7.50 mm Body
• 28-pin SPDIP, 300 mil Body
• 28-pin SSOP, 5.30 mm Body

• AEC-Q100 Qualified
• 16-Bit Remote Bidirectional I/O Port (Pins GPA7, GPB7 are output only for MCP23017) :
• -I/O pins default to input
• High-Speed I 2 C Interface ( MCP23017 ):
• -100 kHz
• -400 kHz
• -1.7 MHz
• High-Speed SPI Interface ( MCP23S17 ):
• -10 MHz (maximum)
• Three Hardware Address Pins to Allow Up to Eight Devices On the Bus
• Configurable Interrupt Output Pins:
• -Configurable as active-high, active-low or open-drain
• INTA and INTB Can Be Configured to Operate Independently or Together

MCP23017-E/SS Pinout

Package: SSOP-28

Notes

• MCP23017-E/SS is the I²C variant (not SPI). Pins 11 and 14 are NC (No Connect) on this variant; the SPI variant (MCP23S17) uses these pins for CS and SO respectively.
• GPB7 and GPA7 are output-only on MCP23017 devices.
• RESET pin must be externally biased (typically pulled high with a resistor or capacitor).
• A0, A1, A2 are hardware address pins for I²C slave address selection; must be externally biased (tied to VDD or VSS).
• The datasheet table lists both QFN and SOIC/SPDIP/SSOP columns; pin numbers above are from the SSOP column as specified for the MCP23017-E/SS part number suffix.

Note 1: This parameter is characterized, not 100% tested.

† Notice : Stresses above those listed under 'Maximum Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.