Microchip Technology DVA1003

Overview

DVA1003 from Microchip Technology is a dual-row, surface-mount device adapter for the MPLAB ICE 2000 in-circuit emulator system, designed to interface with both 68-pin PLCC and 80-pin TQFP PICmicro® MCUs. It supports target footprints requiring DVA–68PL and DVA–84PL mappings, features plated-through-hole mounting (0.028" diameter), and provides mechanical compatibility with Samtec DWM stackers. It enables emulation of high-pin-count PIC devices including PIC16F/17C/18F families during embedded firmware development.

For engineers reviewing the DVA1003 datasheet, DVA1003 pinout, DVA1003 application, or DVA1003 equivalent, this adapter is critical for transitioning between PLCC and TQFP target boards without redesigning test fixtures - especially when validating oscillator routing, Timer1 oscillator support (32–40 kHz), and I/O signal integrity across dual-package emulation scenarios.

Technical Context

The DVA1003 implements dual-row footprint compatibility: one side maps to 68-pin PLCC (DVA–68PL) and the other to 80-pin TQFP (DVA–84PL), enabling shared use across two distinct package families. Its mechanical design includes precise pin-1 location markers (y' for PLCC, y for TQFP) and standardized 0.050" pitch stacker interface per Microchip's DVA specification.

It integrates passive signal routing only - no active logic or clock generation - and relies on companion processor modules (e.g., PCM16XB0, PCM17XA0) for emulation functionality. The adapter supports Timer1 oscillator circuitry when used with jumper-configurable modules, and requires correct jumper positioning (e.g., J1 pins 2–3 ON) to enable RC0/T1OSO and RC1/T1OSI functions per Table 5-7.

Key Specifications

Availability

DVA1003 is available at Aetrix Electronics and suitable for embedded firmware validation, PIC microcontroller bring-up, and production-grade debug fixture development requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial control and automotive ECUs.

Supply support for DVA1003 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 devices, and development tools for embedded systems.

The DVA1003 belongs to Microchip's MPLAB ICE 2000 device adapter product line, engineered specifically to extend emulator compatibility across legacy and modern PICmicro® package variants while maintaining signal fidelity and mechanical repeatability in lab and manufacturing environments.

FAQ

What is the primary function of the DVA1003 in the MPLAB ICE 2000 system?

The DVA1003 serves as a dual-package interface adapter that allows the MPLAB ICE 2000 emulator to connect to both 68-pin PLCC and 80-pin TQFP target boards. It does not contain active circuitry but provides precise mechanical and electrical routing between the emulator pod and surface-mount PICmicro® MCUs. Its design eliminates the need for separate adapters when validating firmware across multiple package types - a key capability for DVA1003 users managing mixed-prototype hardware.

Which PICmicro® MCU families are supported by the DVA1003?

The DVA1003 supports PICmicro® devices compatible with the DVA–68PL and DVA–84PL footprint mappings, including PIC16F877A (80-pin TQFP), PIC17C44 (68-pin PLCC), and PIC18F8720 (80-pin TQFP). Support is determined by pairing DVA1003 with appropriate processor modules (e.g., PCM16XL0 or PCM17XA0) and verifying device coverage in the MPLAB IDE "Readme for MPLAB ICE 2000.txt" file - not by DVA1003 alone.

Does the DVA1003 include onboard oscillator or clock generation circuitry?

No, the DVA1003 contains no active components or oscillator circuitry. Clock signals are supplied either by the emulator pod (internal clock) or the target board (external clock), and oscillator routing (e.g., OSC1/OSC2, T1OSO/T1OSI) depends on jumper configuration (J1) and the connected processor module. The DVA1003's role is strictly passive signal translation and mechanical adaptation - all timing functionality resides in the processor module or target system.

How is the DVA1003 mounted to a target PCB?

The DVA1003 is mounted using its plated-through-hole pattern (0.028" diameter holes) to accept Samtec DWM-series 0.050" pitch stackers, which are soldered directly onto the target board. This creates a rigid, low-inductance interface for emulation signals without requiring zero-insertion-force sockets. Mounting requires strict adherence to the A = 2.200" and B = 2.975" dimensional envelope and correct pin-1 orientation (y'/y) to ensure alignment with both PLCC and TQFP footprints.

Can the DVA1003 be used with newer MPLAB REAL ICE or PICkit™ debuggers?

No, the DVA1003 is exclusively designed for the legacy MPLAB ICE 2000 emulator system and is mechanically and electrically incompatible with MPLAB REAL ICE, PICkit™ 3/4, or SNAP debuggers. Its flex-cable interface, pinout mapping, and power delivery scheme are specific to the ICE 2000 pod architecture. Using DVA1003 with newer tools would require custom adapter redesign and is not supported by Microchip - DVA1003 remains a dedicated component within the ICE 2000 ecosystem.