Microchip Technology AC164309

Overview

AC164309 from Microchip Technology is a 44-lead PLCC socket module designed for use with the MPLAB PM3 Universal Device Programmer to support in-system programming of Microchip PICmicro® and dsPIC30F microcontrollers in 44-pin PLCC packages. It provides mechanical and electrical interface compatibility, configurable pin mapping via the PM3's 40-programmable-socket-pin architecture, and enables high-reliability, quick-swap device programming in production or development environments.

For engineers reviewing the AC164309 datasheet, AC164309 pinout, AC164309 application, or AC164309 equivalent, this socket module is selected based on package footprint (PLCC-44), lead count match, socket-to-device signal integrity requirements, and compatibility with MPLAB PM3 firmware v2.0+ and ICSP™ protocol timing specifications.

Technical Context

The AC164309 operates exclusively as a passive mechanical/electrical interface between the MPLAB PM3 programmer's universal 40-pin programmable socket and 44-lead PLCC-packaged Microchip devices. It routes VDD, VSS, MCLR, PGD, PGC, and I/O pins per device-specific pinout defined in Microchip's device programming specifications.

No onboard logic, voltage regulation, or signal conditioning is present. Signal integrity relies on the PM3's integrated ICSP™ driver circuitry, multi-pin connector reliability, and adherence to Microchip's recommended programming voltage (e.g., 5.0 V ± 10%), timing (TCK ≤ 4 MHz), and VPP ramp rate (≤ 10 V/ms) for PLCC-targeted devices.

Key Specifications

Availability

AC164309 is available at Aetrix Electronics and suitable for microcontroller programming stations, contract manufacturing test lines, and embedded firmware validation labs requiring stable component supply for PIC and dsPIC device programming infrastructure.

Supply support for AC164309 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 Inc. is a U.S.-based semiconductor company specializing in microcontrollers, analog components, and development tools for embedded control applications.

The AC164309 belongs to Microchip's MPLAB PM3 socket module product line, engineered to extend the universal programming capability of the MPLAB PM3 platform across diverse PLCC-packaged MCU and DSC families.

FAQ

Is AC164309 compatible with the MPLAB ICD 2 or MPLAB REAL ICE debuggers?

No. AC164309 is a passive socket module designed exclusively for the MPLAB PM3 Universal Device Programmer. It lacks debugger interface circuitry and does not connect to ICD 2 or REAL ICE hardware. Those tools require dedicated debug headers or in-circuit connections-not socket-based programming interfaces. AC164309 must be used with the MPLAB PM3 unit and its associated firmware and software stack.

Does AC164309 include built-in voltage level translation for 3.3 V PIC devices?

No. AC164309 provides direct pin-to-pin connectivity without active level shifting. Voltage level compatibility depends entirely on the MPLAB PM3's programmable VDD output setting and the target device's specification. For 3.3 V devices, the PM3 must be configured to deliver 3.3 V ± 5% on VDD, and the AC164309 socket maintains that rail unaltered to the PLCC device pins.

Can AC164309 be used to program non-Microchip PLCC-44 devices like Atmel AT89C51ED2?

No. AC164309 is validated only for Microchip PICmicro® and dsPIC30F devices supported by the MPLAB PM3. Its pin mapping, firmware handshake, and ICSP™ timing parameters are specific to Microchip's programming algorithm and device ID protocols. Unsupported devices will fail verification or produce inconsistent programming results.

What is the maximum operating temperature rating for AC164309 during active programming cycles?

AC164309 has no active thermal rating-it is a passive interconnect component. Its operational limit follows the MPLAB PM3's ambient specification: 0°C to 50°C. Sustained operation above 50°C may degrade connector contact resistance and solder joint reliability, especially during repeated hot-plug cycles with powered PLCC devices.

Is a PROMATE II adapter required to use AC164309 with the MPLAB PM3?

No. AC164309 is a native MPLAB PM3 socket module and connects directly to the PM3's universal socket base without adapters. The AC164350 PROMATE II to PM3 adapter is only needed for legacy PROMATE II socket modules-not for AC164309 or other AC1643xx series PM3-native sockets.