ProductsInterface ICsMCP23017-E/SO
PACKAGE REFERENCESOIC-28Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

MCP23017-E/SO

Microchip Technology

MCP23017-E/SO is a Microchip 16-bit I2C I/O expander in 28-pin SOIC (7.5 mm wide body), tube packing — 1.8 V to 5.5 V supply, I2C bus up to 1.7 MHz in high-speed mode, two 8-bit ports (PORTA/PORTB) configurable as inputs or outputs, 25 mA source/sink per pin, three hardware address pins for up to eight devices on one bus, interrupt-on-change with configurable INTA/INTB outputs, internal pull-ups, polarity inversion, and 8/16-bit bank addressing, −40 to +125 °C (E grade). The combination of 1.7 MHz I2C and 16 independently configurable lines is the selection point: an MCU with two I2C wires gains 16 digital I/Os with interrupt reporting — enough to replace a second microcontroller in keypad, LED-matrix and sensor-hub designs. Selection advice: the E means −40 to +125 °C (the I grade is the narrower industrial range); the SO is the 28-pin wide-body SOIC in tubes — the MCP23017T-E/SO is the tape-and-reel variant. It is I2C only; for the SPI equivalent pick the MCP23S17, not this part. Microchip lists MCP23017-E/SO as In Production. Evidence: Microchip MCP23017 datasheet and distributor listings confirm 1.8–5.5 V, 1.7 MHz, 16 I/O, 25 mA, 28-SOIC and tube packing. Match the full MCP23017-E/SO code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Interface ICsI/O expanderSOIC-28
MPN
MCP23017-E/SO
Manufacturer
Microchip Technology
Family
I/O expander
Package
SOIC-28
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
MCP23017-E/SO
Manufacturer
Microchip Technology
Product family
I/O expander
Category
Interface ICs
Package reference
SOIC-28
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
SELECTION GUIDANCE

MCP23017-E/SO selection guidance

MCP23017-E/SO is a I/O expander from Microchip Technology, orderable in the SOIC-28 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.

When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

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MARKET INSIGHTS

Procurement coverage for MCP23017-E/SO

In-depth buyer guides on the market forces affecting this part category — allocation, mergers and technology shifts.

COMMON QUESTIONS

MCP23017-E/SO FAQ

What do the suffixes in MCP23017-E/SO mean?

Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. MCP23017-E/SO names the SOIC-28 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.

What is the difference between package and packing for MCP23017-E/SO?

The package (SOIC-28) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.

Can you provide traceability documents for MCP23017-E/SO?

Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.

How do I request a quotation for MCP23017-E/SO?

Add MCP23017-E/SO to your RFQ with the complete ordering code, the manufacturer (Microchip Technology), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.