XC2C256-7TQ144I - CoolRunner-II CPLD 256MC TQFP-144 | AMD Xilinx
MPN： XC2C256-7TQ144I ✓ 啟用中XC2C256-7TQ144I 概覽
A CPLD is a type of programmable logic device that sits between discrete SPLD devices (such as PAL/GAL/PALCE) and large FPGAs in the programmable-logic hierarchy. CPLDs provide deterministic, pin-to-pin timing, instant-on operation, and non-volatile configuration storage, which makes them the preferred glue-logic, bus-interface, and power-sequencing fabric in systems where an FPGA would be oversized or too slow to boot.
The defining feature of the CoolRunner-II family is its ultra-low power architecture: unlike macrocell CPLDs built on high-power analog fast-switching technology, CoolRunner-II is fabricated on a 1.8 V core CMOS process that consumes orders of magnitude less static current. The -7 speed grade in this suffix denotes the 6.7 ns timing bin, and the trailing 'I' designates the industrial temperature range.
The device integrates 256 macrocells organized into function blocks of 16 macrocells each, with a programmable interconnect matrix that ties all 118 I/Os to the internal fabric. Each macrocell supports combinational and registered modes, global three-state controls, and multiple clocking options. Design entry and compilation are performed with the AMD/Xilinx ISE toolchain.
Typical applications include address decoding and bus interfacing in microprocessor systems, FPGA configuration management and power-sequencing control, protocol bridging and glue logic in industrial automation, handheld and portable equipment where CPLD power budget is critical, and legacy ASIC/ASSP replacement in medical and communication boards.
When designing with this device, remember that the 1.8 V core is internally regulated while I/O banks operate at 1.5 V to 3.3 V; verify that VCCIO banking matches the interfacing voltage standard (LVCMOS levels) before finalizing PCB stack-up.
This page consolidates distributor stock references, drop-in same-package alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet DS094.
直接替換替代品，適用於 XC2C256-7TQ144I — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： XC2C256-7TQ144I （相同外形與佔位） — 差異在於 Package, Configuration Memory, Macrocells, Device Type, Speed Grade.
XC2C256-7TQG144I
✅ 直接替換📋 參考替代品（不在目錄中）
XC2C256-7TQG144C
✅ 直接替換聯絡詢價
查看資料表 →XC2C256-7TQ144C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC2C256-6TQ144C
✅ 直接替換聯絡詢價
查看資料表 →XC2C256-5TQ144C
✅ 直接替換📋 參考替代品（不在目錄中）
XC2C256-7TQG144I4011
✅ 直接替換📋 參考替代品（不在目錄中）
XC2C256-7TQ144I 最大額定值與電氣特性
| Manufacturer | AMD (Xilinx) |
| Product Family | CoolRunner-II CPLD |
| Macrocells | 256 |
| User I/O | 118 inputs / 118 outputs |
| 最大時脈頻率 | 108 MHz |
| Propagation Delay (Speed Grade -7) | 6.7 ns |
| Core Voltage | 1.8 V |
| I/O Voltage Range | 1.5 V to 3.3 V |
| 封裝 | 144-TQFP (TQ144) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +125C (Industrial) |
| Configuration | Non-volatile, instant-on |
| Function Blocks | 16 macrocells per function block |
| Design Software | AMD/Xilinx ISE |
| Datasheet Document | DS094, Revision 3.2 (2007-03-07) |
XC2C256-7TQ144I 144-tqfp (tq144) 腳位配置指南
XC2C256-7TQ144I（144-tqfp (tq144) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： XC2C256-7TQ144I.
請參閱 資料表 以查看完整腳位配置。
典型應用
XC2C256-7TQ144I 適用於 6 應用s: Address Decoding and Bus Interfacing, FPGA Configuration and Power Sequencing Control, Industrial Automation Glue Logic, Portable and Battery-Powered Instruments, Communication and Networking Line-Card Logic, Legacy ASIC and Obsolete-Logic Replacement.
Address Decoding and Bus Interfacing
The XC2C256-7TQ144I excels as system glue logic for microprocessor address decoding, chip-select generation, and bus-width translation. Its 256 macrocells provide enough density for full 32-bit address decode with wait-state generation, while the deterministic 6.7 ns pin-to-pin delay of the -7 speed grade guarantees fixed decode timing that never varies with design fit - a key advantage over FPGA routing-dependent delays. With 118 user I/Os in the TQ144 package, wide data buses (16/32-bit) plus address and control lines fit without I/O multiplexing. The non-volatile instant-on configuration means decode logic is active within microseconds of power-up, before a host FPGA or processor firmware loads, which is essential for correct early bus transactions in embedded controllers and single-board computers.
推薦
FPGA Configuration and Power Sequencing Control
CoolRunner-II CPLDs are the industry-standard companion device for managing FPGA boot and power sequencing. The XC2C256-7TQ144I can implement a state machine that sequences multiple power rails, monitors PGOOD signals, holds the target FPGA in reset until all rails stabilize, and then drives the FPGA configuration clock and DONE monitoring. Its instant-on non-volatile fabric means the sequencer runs from the first millisecond, and its 1.8 V core keeps supervisory power draw negligible compared with the FPGA itself. The 6.7 ns -7 timing is far faster than needed for sequencing, giving generous timing margin; the industrial -40C to +125C rating matches the FPGA's industrial grade in the same system. Typical companion parts include JTAG PROMs and supervisory reset ICs in the same power tree.
推薦
Industrial Automation Glue Logic
In factory automation controllers, PLC I/O cards, and motor-drive interface boards, the XC2C256-7TQ144I consolidates encoder-interface counters, quadrature decoding, PWM merging, and safety interlock logic into one device. The industrial -40C to +125C rating covers cabinet environments that exceed commercial limits, and the deterministic CPLD timing ensures interlock propagation delay is fixed and auditable - important for functional-safety documentation. The 256-macrocell capacity handles multi-channel counters with preload, while 118 I/Os interface limit switches, sensors, and relays through external buffering. The 1.8 V core reduces cabinet self-heating, and non-volatile configuration means the I/O logic recovers instantly after power dips without reconfiguration hardware.
推薦
Portable and Battery-Powered Instruments
The defining trait of CoolRunner-II is ultra-low power from its 1.8 V CMOS core, making the XC2C256-7TQ144I the go-to CPLD for handheld test instruments, portable medical monitors, and battery data loggers. Unlike legacy CPLD families whose static current alone can drain a battery pack, CoolRunner-II consumes negligible standby power, and its data-gating feature reduces dynamic power by disabling unused inputs during inactive cycles. The 108 MHz counter ceiling supports fast capture logic in measurement front ends, while 256 macrocells implement the whole logic shell - triggers, prescalers, and interface glue - leaving the host MCU free for computation. The TQ144 industrial grade also tolerates outdoor and vehicle-mounted instruments.
推薦
Communication and Networking Line-Card Logic
In networking equipment, the XC2C256-7TQ144I implements PHY reset sequencing, LED scanning, backplane hot-swap control, and legacy serial-protocol bridging on line cards and switch management boards. The 108 MHz capability comfortably covers 100 Mbps-rate protocol adaptation, and the 6.7 ns deterministic delay suits clock-enabling and enable-signal gating where jitter-free, fixed-latency logic matters. With 118 I/Os, one device handles an entire status/allocation matrix across multiple PHY ports. Designers commonly pair it with Ethernet PHY and magnetics; the industrial rating extends use to outdoor telecom cabinets. Non-volatile instant-on behavior guarantees management logic is alive before switch firmware boots.
推薦
Legacy ASIC and Obsolete-Logic Replacement
The XC2C256-7TQ144I is a proven consolidation target when replacing discontinued PAL/GAL arrays, 22V10 SPLDs, or retired gate-array glue functions. Several ATF16V8/ATF22V10 devices, or dozens of 74-series TTL packages, can be absorbed into the 256 macrocells at lower total power and board area, with the same TQ144 footprint reused across future revisions simply by recompiling the HDL. The ISE toolchain accepts schematic or VHDL/Verilog entry, easing migration of legacy netlists. Instant-on non-volatile configuration matches the behavior of the fuse-based devices being replaced, so system boot sequencing is unchanged - critical when replacing logic that participates in early power-on handshakes.
推薦
推薦產品摘要
工程參考資料，適用於 XC2C256-7TQ144I — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | XC2C256-7TQG144I | XC2C256-7TQG144C | XC2C256-6TQ144C | XC2C256-5TQ144C |
|---|---|---|---|---|---|
| Package | 144-TQFP (TQ144) | 144-TQFP (TQ144) - same | 144-TQFP (TQ144) - same | 144-TQFP (TQ144) - same | 144-TQFP (TQ144) - same |
| Brand | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) | AMD (Xilinx) |
| Macrocells | 256 | 256 | 256 | 256 | 256 |
| Propagation Delay | 6.7 ns (-7 grade) | 6.7 ns | 6.7 ns | 5.7 ns (-6 grade) | ~5 ns (-5 grade) |
| Operating Temperature | -40C to +125C (Industrial) | -40C to +125C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) |
| Lead-Free / Green Package | No (standard 'TQ144' plating) | Yes ('G' suffix) | Yes ('G' suffix) | No | No |
| User I/O | 118 | 118 | 118 | 118 | 118 |
| Core Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
主要差異化特點
- Industrial temperature rating (對比XC2C256-6TQ144C)
- Cost-optimized speed grade (對比XC2C256-5TQ144C)
- RoHS standard-plating option availability (對比XC2C256-7TQG144I)
設計說明
The CoolRunner-II core operates at 1.8 V (internally regulated in family members with an internal regulator; confirm which scheme your ISE configuration uses per DS094), while I/O banks run at 1.5 V to 3.3 V. Decouple each VCC and VCCIO pin with at least 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus one bulk 10 uF per supply domain. Because static current is extremely low, supply sizing is dominated by dynamic switching - estimate dynamic current from your design's toggle rates in the ISE power report rather than from datasheet ICC tables.
The 144-TQFP has 0.5 mm lead pitch; use a standard 144-TQFP land pattern and solder-mask-defined or non-solder-mask-defined pads per IPC guidance and the AMD TQ144 mechanical drawing. Place a 0.1 uF decoupling capacitor at each corner cluster of power pins and route JTAG (TDI, TDO, TMS, TCK) as a short daisy chain with series 22-33 ohm resistors on TMS/TCK if the chain is long. Reserve test-point access to JTAG for in-system programming and boundary-scan production test.
Three frequent mistakes with this part: (1) sourcing the commercial 'C' temperature grade for an industrial environment - verify the 'I' suffix on incoming labels; (2) mixing lead-free (TQG) and standard (TQ) plating in the same reflow process without validating the solder profile for both; (3) assuming FPGA-like timing variance - CPLD timing is deterministic at 6.7 ns worst case for the -7 grade, so do not add FPGA-style routing margins that waste timing budget. Always confirm final AC timings from the ISE timing report against DS094 limits.
合規資訊
This TQ144I suffix is the standard-plating package. The 'G' suffix variants (e.g., XC2C256-7TQG144I) are AMD's green/lead-free packaging. Verify RoHS status per suffix on the AMD product page before release.
