Microchip Technology DVA16XP401

Overview

DVA16XP401 from Microchip Technology Inc. is a 40-pin DIP device adapter for the MPLAB ICE 2000 in-circuit emulator system, designed to interface with PICmicro MCU target boards requiring 0.600" wide DIP footprints. It supports TIMER1 oscillator input (32–40 kHz), features jumper-configurable RC0/T1OSO/T1CKI and RC1/T1OSI/CCP2 pin routing, and enables emulation of devices compatible with PCM16XB0/B1, PCM16XE0/E1, PCM16XK0, and PCM16XL0 processor modules.

For engineers reviewing the DVA16XP401 datasheet, DVA16XP401 pinout, DVA16XP401 application, or DVA16XP401 equivalent, this adapter is critical for validating PIC16F716 and related 40-pin DIP-targeted firmware in hardware-in-the-loop test environments where precise oscillator emulation and I/O signal routing are required.

Technical Context

The DVA16XP401 implements dual-oscillator support: one internal clock source for general emulation timing and a dedicated second oscillator circuit enabling accurate TIMER1 oscillator emulation (32–40 kHz). Its J1 jumper (pins 1–2 or 2–3) directly controls whether RC0 and RC1 pins function as T1OSO/T1OSI or as general-purpose I/O/CCP2.

This adapter is mechanically and electrically matched to 40-pin DIP targets with 0.600" width, uses plated-through-hole mounting per Table 6-1 (A = 2.200", B = 2.200"), and requires pairing with compatible processor modules - specifically PCM16XB0/B1, PCM16XE0/E1, PCM16XK0, or PCM16XL0 - to enable full Timer1 oscillator functionality.

Key Specifications

Availability

DVA16XP401 is available at Aetrix Electronics and suitable for embedded firmware validation, PIC microcontroller development labs, and production-grade in-circuit debugging requiring stable component supply and long-term emulator system continuity.

Supply support for DVA16XP401 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 control applications.

The DVA16XP401 belongs to Microchip's MPLAB ICE 2000 device adapter product line, engineered to provide precise, package-matched physical and electrical interfacing between emulator hardware and legacy or production PICmicro MCU target systems.

FAQ

What is the primary function of the DVA16XP401 in the MPLAB ICE 2000 system?

The DVA16XP401 serves as a 40-pin DIP device adapter that physically and electrically bridges the MPLAB ICE 2000 emulator pod to target boards hosting PICmicro MCUs such as the PIC16F716. It provides precise pin mapping, supports Timer1 oscillator emulation (32–40 kHz), and enables configurable I/O routing via jumper J1 - all essential for accurate in-circuit debugging and firmware validation using the DVA16XP401.

Which processor modules are compatible with DVA16XP401 for full Timer1 oscillator functionality?

Only PCM16XB0/B1, PCM16XE0/E1, PCM16XK0, and PCM16XL0 processor modules fully support Timer1 oscillator control via the DVA16XP401's J1 jumper. For these modules, shorting J1 pins 2–3 enables T1OSO/T1OSI routing on RC0/RC1. All other processor modules default to software-controlled Timer1 oscillator and require J1 to remain in OFF position (pins 1–2 shorted) - confirming DVA16XP401's dependency on specific module firmware and logic.

Does DVA16XP401 require a transition socket when used with a 40-pin DIP target board?

No, the DVA16XP401 is designed for direct use with 0.600" wide 40-pin DIP target footprints and does not require a transition socket. Its mechanical dimensions (A = 2.200", B = 2.200") and pin layout match standard 40-pin DIP sockets per Table 6-1, allowing plug-in or solder-mount integration without intermediate adapters - unlike surface-mount variants such as TQFP or PLCC packages that rely on transition sockets.

How does the J1 jumper on DVA16XP401 affect pin functionality for RC0 and RC1?

The J1 jumper on DVA16XP401 determines whether RC0 and RC1 operate as Timer1 oscillator pins (T1OSO/T1OSI) or as standard I/O/CCP2 signals. Shorting pins 2–3 configures RC0 as T1OSO and RC1 as T1OSI - required for hardware-based Timer1 oscillator emulation. Shorting pins 1–2 reverts RC0 to T1CKI/RC0 and RC1 to CCP2/RC1, preserving general-purpose operation. This configuration is mandatory for correct DVA16XP401 behavior with supported processor modules.

Can DVA16XP401 be used with PIC16F716 devices operating below 4.5V?

Yes, the DVA16XP401 itself has no voltage rating - it is a passive interconnect adapter. However, its compatibility with low-voltage PIC16F716 operation depends entirely on the paired processor module (e.g., PCM16XL0) and emulator settings. When used with low-voltage-capable modules and configured for "Processor Power Supplied by Target Board", the DVA16XP401 maintains signal integrity and oscillator routing across 2.0V–5.5V target supply ranges - as validated in Section 4.1.4 for DVA16XP401-supported configurations.