Microchip Technology AC164346

Overview

AC164346 from Microchip Technology is an MPLAB PM3 socket module designed to interface 144-pin LQFP (20×20×1.4 mm) microcontrollers with the MPLAB PM3 production programmer (DV007004). It supports device programming and verification in high-volume manufacturing environments for PIC® MCUs in the 144L LQFP package.

For engineers reviewing the AC164346 datasheet, AC164346 pinout, AC164346 application, or AC164346 equivalent, this module is critical for validating socket compatibility, verifying mechanical alignment of 144L LQFP devices, and ensuring reliable contact during automated programming cycles in production test setups.

Technical Context

The AC164346 is a passive mechanical adapter-not an active electronic component-and provides zero-insertion-force (ZIF) socket functionality specifically calibrated for 144L LQFP packages with 0.5 mm pitch and 20×20 mm body dimensions. It mates exclusively with the MPLAB PM3 programmer base unit (DV007004) via standardized mechanical and electrical interconnects.

It does not contain circuitry, ICs, or firmware; its design ensures precise coplanarity control, thermal stability during repeated insertion cycles, and gold-plated contact reliability per IPC-6012 Class 2 requirements for production tooling interfaces.

Key Specifications

Availability

AC164346 is available at Aetrix Electronics and suitable for high-volume microcontroller programming, production line burn-in testing, and PIC® MCU firmware validation requiring stable component supply and repeatable mechanical interface performance.

Supply support for AC164346 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and development tools for embedded control applications.

The AC164346 belongs to Microchip's MPLAB® programming hardware ecosystem and was engineered to extend the MPLAB PM3's capability to 144L LQFP-packaged PIC® MCUs-enabling scalable, repeatable, and factory-ready programming workflows.

FAQ

What is the AC164346 used for?

The AC164346 is a socket module that enables the MPLAB PM3 programmer (DV007004) to program and verify 144-pin LQFP microcontrollers. It provides mechanical alignment, electrical contact, and ZIF operation for high-reliability production programming of PIC® MCUs in the 144L LQFP package. The AC164346 itself contains no active electronics or firmware.

Which Microchip programmer is compatible with the AC164346?

The AC164346 is designed exclusively for use with the MPLAB PM3 production programmer (order code DV007004). It mounts directly into the DV007004 base unit via a keyed mechanical interface and is not compatible with MPLAB ICD, PICkit, or Snap programmers. The AC164346 requires the DV007004 to function.

Does the AC164346 support other LQFP packages besides 144L?

No-the AC164346 is dimensionally and mechanically specific to the 144L LQFP package (20×20×1.4 mm, 0.5 mm pitch). It does not support 100-pin, 64-pin, or other LQFP variants. Microchip offers separate socket modules-for example, AC164345 for 100L LQFP-to match different package footprints. The AC164346 is not interchangeable with those modules.

Is the AC164346 RoHS compliant?

Yes, the AC164346 conforms to RoHS Directive 2011/65/EU as verified by Microchip's official product change notices and compliance documentation. All materials-including housing, contacts, and internal hardware-meet lead-free soldering and restricted substance requirements. This applies to all units shipped under the AC164346 part number.

Can the AC164346 be used with non-Microchip microcontrollers?

No-the AC164346 is qualified only for Microchip's 144L LQFP-packaged PIC® microcontrollers and dsPIC® DSCs. Its pin mapping, voltage tolerances, and programming protocol timing are aligned with Microchip's MPLAB PM3 firmware and device-specific algorithms. Using it with non-Microchip devices may result in incorrect programming or physical damage. The AC164346 is not a generic LQFP socket.