Microchip Technology AC164348

Overview

AC164348 from Microchip Technology is an MPLAB PM3 socket module designed to interface 40-lead QFN microcontrollers (5×5 mm body, 0.5 mm thickness) with the MPLAB PM3 production programmer (DV007004). It supports programming and verification of Microchip PIC® MCUs in the -MV package variant, enabling high-reliability production programming in automated test environments.

For engineers reviewing the AC164348 datasheet, AC164348 pinout, AC164348 application, or AC164348 equivalent, this module is critical for validating QFN-based MCU programming workflows, verifying socket contact integrity for 0.5 mm pitch leads, selecting compatible MPLAB PM3 firmware versions, and ensuring mechanical alignment with 5×5 mm QFN footprints during production line setup.

Technical Context

The AC164348 is a passive mechanical and electrical interface adapter-not an active IC-designed exclusively for use with the MPLAB PM3 (DV007004). It provides standardized ZIF-style socket contact geometry matched to Microchip's 40L QFN -MV package specification, including precise pad pitch (0.5 mm), land pattern alignment, and thermal pad clearance.

It requires no external power, firmware, or configuration. Compatibility is strictly governed by Microchip's Device Tool Selector (DTS); only devices explicitly listed under "AC164348" in DTS are supported, and no cross-package or cross-family adaptation is permitted without validation via DTS.

Key Specifications

Availability

AC164348 is available at Aetrix Electronics and suitable for production programming, factory flash validation, and QFN package qualification requiring stable component supply, repeatable socket contact reliability, and traceable tooling for automotive-grade MCU manufacturing.

Supply support for AC164348 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 AC164348 belongs to Microchip's MPLAB PM3 ecosystem of production programming accessories, engineered specifically to extend the MPLAB PM3's capability to surface-mount QFN-packaged MCUs in high-volume manufacturing settings.

FAQ

What is the AC164348 used for?

The AC164348 is a socket module that enables the MPLAB PM3 programmer (DV007004) to program and verify 40-lead QFN Microchip MCUs with 5×5 mm body and 0.5 mm thickness. It is not a standalone tool but a precision-machined interface required for reliable electrical contact during production programming of -MV package devices. The AC164348 must be used exclusively with the MPLAB PM3 and validated via Microchip's Device Tool Selector.

Does the AC164348 support other QFN sizes or lead counts?

No. The AC164348 is mechanically and electrically tuned only for 40-lead QFN packages measuring 5×5 mm with 0.5 mm thickness and -MV package code. It does not support 28L, 32L, 48L, or 64L QFN variants, nor does it accommodate 4×4 mm, 6×6 mm, or 7×7 mm bodies. Any deviation requires a different socket module, such as AC164347 or AC164349, as specified in Microchip's DTS.

Is the AC164348 compatible with MPLAB ICD or PICkit programmers?

No. The AC164348 is designed exclusively for use with the MPLAB PM3 production programmer (DV007004). It lacks circuitry for debug communication, voltage regulation, or protocol translation required by MPLAB ICD or PICkit tools. Attempting to use the AC164348 with non-PM3 programmers will result in physical misalignment and no functional connection.

How do I confirm if my MCU is supported by the AC164348?

You must consult Microchip's official Device Tool Selector (dts.microchip.com) and search for your specific MCU part number. Only devices explicitly listed under "AC164348" in DTS are supported. Support depends on both device family and -MV package code - identical devices in -ML or -MM packages are not compatible, even if pinout and footprint appear similar.

Does the AC164348 require firmware updates or calibration?

No. The AC164348 is a passive mechanical socket module with no active components, firmware, or calibration requirements. Its performance relies solely on dimensional accuracy and contact plating integrity. Firmware updates apply only to the MPLAB PM3 (DV007004), not the AC164348. Users should inspect socket contacts periodically for wear or contamination to maintain programming yield.