XCR3256XL-12FTG256C

Overview

The XCR3256XL-12FTG256C is a Complex Programmable Logic Device (CPLD) belonging to the CoolRunner XPLA3 series, manufactured by AMD. It features 256 macrocells and 16 logic blocks within a 256-pin FineLine BGA package. The device operates on a single 3V to 3.6V supply voltage and supports system-in-system programming with over 1,000 erase/program cycles. Key electrical parameters include a maximum propagation delay of 10.8 ns and a maximum operating frequency of 154 MHz. It is designed for surface-mount installation and functions within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Contains 256 macrocells and 6,000 usable gates for complex logic implementation.
• Supports In-System Programming (ISP) via JTAG interface.
• Utilizes non-volatile EEPROM technology for configuration storage.
• Operates at frequencies up to 154 MHz with 10.8 ns max propagation delay.

Applications

• Interface bridging between different voltage domains or protocol converters.
• Address decoding and chip select generation in embedded systems.
• State machine implementation for control logic.
• Replacement for legacy GALs or PALs in industrial equipment.

Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer, with discontinuance notifications dated January 2024. Availability is restricted to existing stock or surplus channels. Verification of authenticity and lot traceability is critical when sourcing from third-party distributors due to the discontinued status.

Selection Notes

Designers should evaluate the XC2C256 series as a direct functional replacement within the same package footprint. Considerations must include verifying pin compatibility and ensuring that the target application does not require features specific to newer FPGA architectures. Thermal management remains consistent with the original FTBGA-256 specifications.

Part Context

The XCR3256XL is part of the CoolRunner-XPLA3 family, which succeeded earlier CoolRunner I and II lines. This series was engineered to provide high-density CPLD capabilities with low power consumption, targeting cost-sensitive applications requiring deterministic logic performance without the complexity of full FPGAs.

Replacement Considerations

AMD XC2C256-7FTG256C is identified as a similar alternative part number.