Microchip Technology ATF22LV10C-10XC

Overview

ATF22LV10C-10XC from Microchip Technology (formerly Atmel) is a 24-pin, electrically erasable programmable logic device (PLD) with 12 inputs, 10 I/O macrocells, and user-configurable power-down capability. It operates from 3.0V to 5.5V, delivers ≤10ns propagation delay, supports industrial temperature range (–40°C to +85°C), and is packaged in 24-lead TSSOP (24X). It serves as glue logic in 3.3V systems, DMA control, and state machine implementation.

For engineers reviewing the ATF22LV10C-10XC datasheet, ATF22LV10C-10XC pinout, ATF22LV10C-10XC application, or ATF22LV10C-10XC equivalent, key selection considerations include its 10µA typical standby current under PD activation, 20-year data retention, 100 erase/write cycles, 5V-tolerant inputs, and compatibility with standard 22V10-based design flows and JEDEC programming tools.

Technical Context

The ATF22LV10C-10XC implements a variable product-term architecture with up to 16 product terms per output, enabling complex combinatorial and registered logic functions. Its macrocell structure supports active-high/low and registered/combinatorial output configurations, and includes dedicated synchronous/asynchronous reset product terms common to all ten registers.

It features internal pin-keeper circuits that latch input and I/O states when undriven, eliminating external pull-ups and reducing static power. The PD pin (Pin 4 in SOIC/TSSOP) enables zero-power standby mode (<100µA ICC2), with latched register and output states preserved during power-down - critical for battery-powered and low-power embedded control applications.

Key Specifications

Pinout & Package

ATF22LV10C-10XC is housed in a 24-lead Thin Shrink Small Outline Package (TSSOP), 4.4 mm body width, JEDEC MO-153 AD compliant, with 0.65 mm pitch. Pin 1 identifier is marked by a beveled corner; package is RoHS-compliant and halide-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PLD-based glue logic applications.

Compared with ATF22LV10C-10PC and ATF22LV10C-10JI, the ATF22LV10C-10XC offers the smallest PCB area and best thermal performance for volume production, while maintaining full functional and timing equivalence across all three packages.

Availability

ATF22LV10C-10XC is available at Aetrix Electronics and suitable for industrial motion control, battery-powered data loggers, and graphics controller interface applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for ATF22LV10C-10XC 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 acquired Atmel in 2016 and now manufactures and supports the ATF22LV10C family. The company specializes in microcontrollers, analog, and programmable logic solutions for industrial, automotive, and consumer markets.

The ATF22LV10C product line was designed to replace obsolete PAL/GAL devices with flash-based, low-voltage, reprogrammable PLDs for embedded glue logic, state machines, and interface bridging in cost-sensitive, space-constrained applications.

FAQ

What is the maximum operating frequency of the ATF22LV10C-10XC?

The ATF22LV10C-10XC supports a maximum external feedback clock frequency of 71.4 MHz and internal feedback up to 80 MHz, based on its 10ns propagation delay and specified setup/hold times. These values are guaranteed over the full industrial temperature range (–40°C to +85°C) and 3.0V–5.5V supply, making the ATF22LV10C-10XC suitable for high-speed control loops and real-time interface logic where deterministic timing is required.

Does the ATF22LV10C-10XC require an external programmer, and what file format does it use?

Yes, the ATF22LV10C-10XC requires a standard CMOS PLD programmer supporting JEDEC JED files. It is compatible with industry tools such as Data I/O PS-3000, BP Microsystems universal programmers, and open-source solutions using Lattice ispVM or Atmel WinCUPL-generated JEDEC files. The ATF22LV10C-10XC does not support in-system programming (ISP); programming must occur before soldering or via dedicated ZIF sockets.

How does the power-down mode affect register and output states in the ATF22LV10C-10XC?

When the PD pin is asserted high, the ATF22LV10C-10XC enters a low-power state where all internal logic states-including register contents and combinatorial outputs-are latched and held. Outputs remain valid and drive their last logic level; no glitch or metastability occurs. This behavior allows seamless wake-up without reinitialization, which is essential for maintaining system integrity in battery-powered ATF22LV10C-10XC deployments.

Can the ATF22LV10C-10XC replace a standard 22V10 device in an existing design?

Yes, the ATF22LV10C-10XC is functionally and pin-compatible with industry-standard 22V10 devices in the same package variant (e.g., TSSOP), provided the design uses the same compiler mode (PAL or GAL) and accounts for its lower supply voltage range (3.0V–5.5V vs. 5V-only). Its 5V-tolerant inputs ensure safe operation in mixed-voltage systems, and the ATF22LV10C-10XC retains full JEDEC file compatibility with legacy 22V10 toolchains.

What is the purpose of the 64-bit User Signature memory in the ATF22LV10C-10XC?

The 64-bit User Signature memory in the ATF22LV10C-10XC is always accessible-even when the security fuse is programmed-and is intended for nonvolatile storage of application-specific identifiers such as firmware revision, board serial number, calibration constants, or project metadata. It resides outside the main logic array and does not consume macrocell resources, allowing designers to embed traceability directly into the ATF22LV10C-10XC without impacting logic capacity or timing.