MANUFACTURER PART RECORDMCP23017-E/SO
Microchip TechnologyMCP23017-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