Microchip Technology XLT08SO

Overview

XLT08SO from Microchip Technology is a discontinued 8-lead DIP-to-SOIC transition socket adapter designed to bridge legacy PDIP development hardware (e.g., MPLAB ICE 2000 device adapters) with compact SOIC target boards. It comprises an 8-lead DIP adapter socket and an 8-lead SOIC header (0.050" body width), enabling in-circuit debugging without PCB redesign. Used in microcontroller prototyping for PIC devices requiring SOIC footprint compatibility.

For engineers reviewing the XLT08SO datasheet, XLT08SO pinout, XLT08SO application, or XLT08SO equivalent, this part supports rapid transition from DIP-based emulator interfaces to production-ready SOIC layouts - critical during firmware validation, debug iteration, and pre-production test fixture setup where package format mismatch would otherwise delay verification.

Technical Context

The XLT08SO implements a passive mechanical and electrical interface between 0.300"-pitch DIP headers and 1.27 mm-pitch SOIC footprints. Its construction includes gold-plated standoffs and rigid PCB-based adapter socket/headers ensuring reliable signal continuity across all 8 leads without active circuitry or impedance matching.

It is mechanically dimensioned for compatibility with standard 8-lead SOIC packages (5.28 mm body width per DS51194S-page 9), and requires precise PCB land pattern alignment - especially avoiding vias within 0.025" of pads - to prevent solder bridging or misalignment during header soldering.

Key Specifications

Availability

XLT08SO is available at Aetrix Electronics and suitable for embedded firmware validation, in-circuit debug fixture development, and legacy emulator-to-production board interface bridging requiring stable component supply despite its discontinued status.

Supply support for XLT08SO 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 manufacturer specializing in microcontrollers, analog devices, and development tools with ISO/TS-16949:2002 certification.

The XLT08SO belongs to Microchip's Transition Socket product line, engineered specifically to eliminate package-format barriers between development hardware (DIP-based emulators) and production-target PCBs (SOIC/SOIC-N/SSOP).

FAQ

What is the functional purpose of the XLT08SO?

The XLT08SO is a discontinued mechanical transition socket that enables connection between 8-lead DIP-formatted emulator hardware (e.g., MPLAB ICE 2000 device adapters) and 8-lead SOIC target boards. It contains no active electronics - only precision-machined contacts and PCB-based headers - and serves solely to maintain signal integrity while bridging incompatible IC package footprints during firmware debug and validation. The XLT08SO was never intended for permanent system deployment.

Is the XLT08SO still in production?

No, the XLT08SO has been officially discontinued by Microchip Technology as noted in DS51194S-page 7. It is superseded by XLT08SO-1 (5.28 mm SOIC body) and XLT08SN-1 (3.9 mm narrow SOIC body). However, Aetrix Electronics maintains limited legacy stock of XLT08SO for continuity support in existing test fixtures and maintenance of legacy development systems where redesign is impractical.

What are the key mechanical dimensions of the XLT08SO?

The XLT08SO features a total assembled height of 8.15 mm, 10.16 mm × 10.16 mm top-view footprint, and 7.62 mm depth. Its SOIC header conforms to 0.050-inch body width (1.27 mm pitch), and the DIP side uses standard 0.100-inch lead spacing. Tolerances are ±0.08 mm on pitch positioning and ±0.13 mm elsewhere per DS51194S mechanical drawings.

Can the XLT08SO be used with modern PIC microcontrollers?

Yes - the XLT08SO is compatible with any 8-lead SOIC-packaged PIC microcontroller (e.g., PIC12F629, PIC16F628A) when used with legacy DIP-based debug hardware. Its function is purely mechanical and protocol-agnostic; it imposes no timing, voltage, or logic constraints. However, users must verify pin mapping alignment between the DIP adapter and target SOIC device, as pin 1 orientation is inverted between adapter and header sides per DS51194S-page 16.

How does the XLT08SO differ from XLT08SO-1?

The XLT08SO is the original discontinued version with unspecified SOIC body width in public documentation, whereas XLT08SO-1 is its direct replacement explicitly specified for 5.28 mm SOIC-8 (standard width) per DS51194S-page 9. Both share identical 8-lead DIP-to-SOIC conversion functionality and mechanical interface, but XLT08SO-1 includes updated tolerancing, gold standoff plating, and documented compatibility with current MPLAB ICD and REAL ICE toolchains.