MCP23009T-E/SS Equivalent & Substitute Parts

Part Overview

The MCP23009T-E/SS is an 8-bit I/O expander with I2C interface operating at 3.4 MHz, manufactured by Microchip Technology. This device provides 8 programmable input/output lines with open-drain output capability and interrupt output functionality. The part is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when packaging or supplier configurations differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

MCP23009T-E/SS

Microchip TechnologyIn Stock: 1291MCP23009T-E/SS Datasheet

Current PartRFQ

MCP23009-E/SS

Microchip TechnologyIn Stock: 2437MCP23009-E/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCP23009T-E/SS is determined by equivalence across the following critical parameters: base product number (MCP23009), number of I/O lines (8), interface protocol (I2C), clock frequency (3.4 MHz), supply voltage range (1.8V ~ 5.5V), output type (open drain), output current capability (25mA), operating temperature range (-40°C ~ 125°C), and package configuration (20-SSOP). The identified substitute part maintains all electrical specifications and mechanical dimensions while differing only in packaging format (Tube versus Tape & Reel) and inventory source. Both parts share identical RoHS3 compliance, REACH status, and product lifecycle classification.

Parameter Comparison

Engineering Selection Recommendations

Both MCP23009T-E/SS and MCP23009-E/SS are functionally equivalent I/O expander devices with identical electrical performance and mechanical specifications. Selection between these parts is determined by packaging and supply chain requirements rather than technical performance. The MCP23009T-E/SS in Tape & Reel format is suitable for high-volume automated assembly operations. The MCP23009-E/SS in Tube packaging accommodates lower-volume applications or manual assembly processes. Both parts maintain Active product status with full RoHS3 compliance and REACH unaffected classification, ensuring regulatory compliance across industrial and commercial applications. Moisture sensitivity rating of Level 1 (Unlimited) indicates no special storage or handling requirements for either variant.

Frequently Asked Questions (FAQ)

Q: Are MCP23009T-E/SS and MCP23009-E/SS electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including I2C interface, 3.4 MHz clock frequency, 8 I/O lines, 1.8V to 5.5V supply range, 25mA output current capability, and -40°C to 125°C operating temperature range.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. MCP23009T-E/SS is supplied in Tape & Reel (TR) configuration for automated pick-and-place assembly. MCP23009-E/SS is supplied in Tube packaging for manual handling or lower-volume applications.

Q: Can I use MCP23009-E/SS as a direct replacement for MCP23009T-E/SS in PCB assembly?

A: Yes, provided your assembly process accommodates Tube packaging instead of Tape & Reel. The physical component dimensions, pinout, and electrical characteristics are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both MCP23009T-E/SS and MCP23009-E/SS are ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: Do these parts require different PCB footprints?

A: No. Both parts use the 20-SSOP package with identical dimensions (0.209" width, 5.30mm). PCB footprints are identical.