Microchip Technology AC164369

Overview

AC164369 from Microchip Technology is a PM3 Universal 8L 5×6 mm DFN socket module designed for in-circuit programming of Microchip PIC and dsPIC microcontrollers in 8-lead DFN packages with -MF package code. It interfaces exclusively with the MPLAB PM3 Programmer (DV007004) and supports devices requiring 5×6 mm body size, 0.5 mm pitch, and exposed thermal pad configuration.

For engineers reviewing the AC164369 datasheet, AC164369 pinout, AC164369 application, or AC164369 equivalent, this module enables reliable device programming during development and small-batch production-particularly where DFN package compatibility, thermal pad contact integrity, and alignment tolerance with MPLAB PM3's mechanical interface are critical selection criteria.

Technical Context

The AC164369 socket module provides mechanical and electrical interface translation between the MPLAB PM3 Programmer's standardized ZIF-style header and 8-lead DFN packages conforming to Microchip's -MF package designation. It incorporates precision-machined spring-loaded pogo pins aligned to 0.5 mm pitch, with dedicated contact for the exposed thermal pad (EPAD) to ensure stable VSS connection and thermal stability during programming cycles.

It operates within the standard MPLAB PM3 voltage and timing envelope: supports VDD programming voltages from 2.0 V to 5.5 V, accommodates ICSP™ clock frequencies up to 4 MHz, and maintains signal integrity for PGD/PGC/MCLR/VDD/VSS/EPAD connections without external buffering or level shifting.

Key Specifications

Availability

AC164369 is available at Aetrix Electronics and suitable for embedded firmware development, microcontroller prototyping, and low-volume production programming requiring stable component supply, consistent DFN package registration, and repeatable EPAD contact performance.

Supply support for AC164369 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 AC164369 belongs to Microchip's MPLAB PM3 Socket Module product line, engineered specifically to extend the programming capability of the MPLAB PM3 to surface-mount DFN packages used in space-constrained MCU designs.

FAQ

What package types does the AC164369 support?

The AC164369 supports only 8-lead DFN packages with 5×6 mm body size and -MF package code, as defined by Microchip's packaging nomenclature. It is not compatible with SC-70, SOIJ, QFN, UQFN, or BGA packages-even if lead count or dimensions appear similar. Always verify target device package code against Microchip's Device Tool Selector before use.

Is AC164369 compatible with programmers other than MPLAB PM3?

No. The AC164369 is mechanically and electrically designed exclusively for the MPLAB PM3 Programmer (DV007004). Its 14-pin IDC interface, pinout mapping, and physical mounting geometry do not align with MPLAB ICD 4, PICkit 4, or third-party programmers. Using AC164369 with non-PM3 hardware may result in misalignment or contact failure.

Does AC164369 require firmware or driver updates?

No. The AC164369 is a passive mechanical-electrical interface module with no embedded firmware or configurable logic. It requires no drivers, firmware updates, or software configuration. Compatibility depends solely on correct pairing with MPLAB PM3 hardware and MPLAB X IDE v5.40 or later for device recognition and programming flow execution.

How is thermal pad (EPAD) contact ensured in AC164369?

The AC164369 includes a dedicated spring-loaded pogo pin positioned beneath the socket cavity to make direct, low-resistance contact with the exposed thermal pad (EPAD) of supported DFN packages. This ensures stable VSS reference and thermal dissipation during programming, preventing voltage droop or communication timeout caused by poor EPAD grounding.

Can AC164369 be used for debugging or only programming?

The AC164369 supports only in-circuit serial programming (ICSP™) via the MPLAB PM3-it does not enable real-time debugging, breakpoints, or run-control functions. Debugging requires a debug-enabled programmer (e.g., MPLAB ICD 4 or PICkit 4) and a compatible debug header or on-board debug interface; AC164369 provides no debug signal routing or protocol handling beyond ICSP™.