Teradyne TLiIQ LA768 Modules: 950-601-02 / 949-769-00/D / 949-768-65 / 0040-18219 SE300 —

Technical Dossier

Product Details And Specifications

Teradyne TLiIQ Series: Comprehensive Module Range and Technical Overview

The Teradyne TLiIQ platform is a high-throughput Automatic Test Equipment (ATE) system deployed across semiconductor manufacturing, defense electronics, and aerospace validation facilities worldwide. Its modular backplane architecture supports mixed-signal, digital, and RF test configurations, making it a long-cycle capital asset in fabs and contract test houses operating under ISO/IEC 17025 and MIL-STD-883 compliance regimes. The LA768 board — cross-referenced under part numbers 950-601-02, 949-769-00/D, 949-768-65, and assembly code 0040-18219 SE300 — is a core logic/interface board within the TLiIQ mainframe, responsible for backplane communication arbitration and test-head signal routing.

The Evolution of TLiIQ Architecture

Teradyne introduced the TLiIQ platform as a successor to the J750 and UltraFLEX families for specific mixed-signal device classes. The architecture is built around a proprietary high-speed serial backplane bus that replaced the parallel VME-based interconnects of earlier generations. Early TLiIQ revisions used discrete FPGA logic on interface boards such as the LA768 (Rev A/B); later revisions (Rev C onward, including the /D suffix on 949-769-00/D) integrated programmable logic with on-board flash for firmware persistence, reducing calibration drift over thermal cycles. Compatibility between board revisions is slot-position dependent: Rev A and Rev B boards are interchangeable in slots 1–8, while Rev C/D boards require firmware baseline 3.2.x or higher on the system controller. End-of-life (EOL) notice for new production of the LA768 assembly was issued by Teradyne in 2018; however, the installed base remains active in high-volume production environments, sustaining strong demand for tested spare units.

TLiIQ Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the Teradyne TLiIQ ecosystem, classified by functional category:

Logic & Interface Boards

• LA768 / 950-601-02: Backplane logic arbitration and signal routing board, primary interface layer.
• 949-769-00/D: Rev D variant of LA768 interface board with integrated flash firmware.
• 949-768-65: Sub-assembly PCB for LA768, handles analog signal conditioning paths.
• 0040-18219 SE300: Full board assembly designation for SE300 slot configuration of LA768.
• LA750: Predecessor logic board; compatible with TLiIQ chassis in legacy mixed configurations.
• LA760: Mid-generation logic board; supports extended digital pin count vs. LA750.
• LA780: Successor logic board to LA768; higher-density FPGA fabric, requires firmware 4.x.

Digital I/O Modules

• DIO-32: 32-channel digital I/O module, TTL/LVTTL compatible, 200 MHz max vector rate.
• DIO-64: 64-channel digital I/O expansion module for high pin-count device testing.
• DIO-128: 128-channel digital I/O module with per-pin programmable drive/compare levels.

Analog & Mixed-Signal Modules

• AWG-16: 16-channel arbitrary waveform generator, 100 MS/s, 14-bit resolution.
• ADC-8: 8-channel simultaneous-sampling ADC module, 125 MS/s, 16-bit.
• PMU-32: 32-channel parametric measurement unit for DC characterization (Vt, Idsat, leakage).

Power Supply Modules

• DPS-4: 4-channel device power supply, ±25V / 2A per channel, programmable slew rate.
• DPS-8: 8-channel device power supply with remote sense and OVP/OCP protection.
• HVPS-2: 2-channel high-voltage power supply, up to 200V, for gate-oxide stress testing.

Communication & System Controller

• SYS-CTL-3: System controller board, dual-core embedded processor, PCIe Gen2 host interface.
• GPIB-IF: GPIB/IEEE-488 interface adapter for legacy instrument integration.

Sourcing Hard-to-Find & Obsolete TLiIQ Parts

Since Teradyne ceased new production of the LA768 assembly and several associated TLiIQ modules, the secondary market has become the primary supply channel for maintenance and capacity-expansion requirements. DriveKNMS maintains a continuously updated inventory of tested TLiIQ spare boards sourced from decommissioned systems, factory overstock, and authorized reseller channels. All units are serialized, and provenance documentation is available upon request. For EOL modules where no direct replacement exists, DriveKNMS provides cross-reference analysis to identify functionally equivalent substitutes within the TLiIQ ecosystem or from compatible Teradyne platforms. Lead times for LA768 and related boards are typically 2–10 business days from confirmed stock; emergency same-day dispatch is available for critical production-down situations.

Quality Control for the TLiIQ Range

TLiIQ boards present specific test challenges due to their high-density BGA components, multi-layer impedance-controlled PCBs, and proprietary backplane bus transceivers. DriveKNMS applies a structured test protocol for all LA768 and associated modules:

• Visual & X-Ray Inspection: 100% visual inspection under 10x magnification; BGA solder joint integrity verified by 2D X-ray for boards with hidden interconnects.
• In-Circuit Test (ICT): Boundary-scan (JTAG) verification of all programmable logic devices and flash memory on Rev C/D boards.
• Functional Burn-In: Each board is installed in a TLiIQ-compatible chassis and exercised through a full diagnostic sequence at ambient and elevated temperature (55°C) for a minimum of 4 hours.
• Backplane Bus Loopback Test: Signal integrity verification on all backplane connector pins using time-domain reflectometry (TDR) to detect impedance discontinuities.
• Calibration Verification: Analog signal path boards are calibrated against NIST-traceable references before shipment.

All tested units ship with a DriveKNMS test report and a 90-day functional warranty.