MCP23017-E/SP

I/o Expanders Overview

The MCP23017-E/SP is a 16-bit I/O expander featuring an I²C interface, housed in a 28-pin SPDIP package. It operates within a supply voltage range of 1.8V to 5.5V and supports clock frequencies up to 1.7 MHz. The device provides 16 bidirectional I/O pins (GPA0-GPA7, GPB0-GPB7), with GPA7 and GPB7 designated as output-only. Key electrical specifications include a maximum standby current of 1 µA at -40°C to +85°C, ESD protection of 4 kV (HBM), and an operating temperature range from -40°C to +125°C.

I/o Expanders Feature Summary

• Provides 16-bit remote bidirectional I/O expansion via a high-speed I²C interface supporting multiple clock speeds.
• Features configurable interrupt output pins (INTA/INTB) that can operate independently or together with selectable polarity.
• Includes hardware address pins allowing up to eight devices on the same bus and an external reset input.

I/o Expanders Applications

• General-purpose parallel I/O expansion for embedded systems requiring additional GPIOs.
• Industrial control applications utilizing the wide operating temperature range and AEC-Q100 qualification.
• Consumer electronics interfacing where low standby current and minimal pin usage are critical.

I/o Expanders Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature grade (-40°C to +125°C). Confirm the 'SP' designation corresponds to the SPDIP-28 through-hole package. Ensure compatibility with the host system's I²C voltage levels and bus capacitance limits before integration.

I/o Expanders Selection Notes

Select this component when a 16-bit I/O expansion is required over the 8-bit MCP23008. Choose the SPDIP package for through-hole assembly requirements. Consider the MCP23S17 variant if SPI communication is preferred over I²C. Verify that the host controller supports the required I²C clock speeds for the target application voltage.

I/o Expanders Part Context

This part belongs to the MCP23X17 family, which includes both I²C (MCP23017) and SPI (MCP23S17) variants. The 'E' suffix denotes the extended temperature grade suitable for industrial environments. The device shares register architecture and functional logic with other members of the series, differing primarily in interface protocol and packaging.

I/o Expanders Replacement Considerations

MCP23017-E/SO: Same function in SOIC-28 package. MCP23017-E/SS: Same function in SSOP-28 package. MCP23017T-E/SS: Tape and reel version of the SSOP package. MCP23S17-E/SP: SPI interface variant in SPDIP-28 package.