XC2C256-7VQ100C - CoolRunner-II CPLD 256MC 1.8V | Xilinx
N.º de pieza: XC2C256-7VQ100C ✓ ActivoXC2C256-7VQ100C Descripción general
A CPLD (complex programmable logic device) is a class of programmable logic IC that sits between simple PAL/GAL devices and large FPGAs in the programmable-logic hierarchy. CPLDs use a deterministic, macrocell-based architecture that delivers fixed, predictable timing from input to output, making them the standard choice for glue logic, state machines, bus interfacing, power-sequencing control, and address decoding where every switching event has a known worst-case delay.
The defining feature of the CoolRunner-II family is its extremely low power profile. Because the XC2C256 uses a 1.8 V core rather than the 3.3 V or 5 V rails of older CPLD generations, dynamic and static power consumption are dramatically reduced, which is why the family is widely used in battery-powered and thermally constrained systems. The device also supports ISE design tools and offers schmitt-trigger inputs, optional dual-DLL clocking resources, and flexible macrocell architecture for high logic utilization.
With 256 macrocells and 118 user I/Os in a 0.5 mm-pitch 100-pin QFP, the XC2C256-7VQ100C provides one of the highest densities of the CoolRunner-II family in a surface-mount package that is easy to inspect and rework. The -7 speed grade denotes the 7 ns commercial-grade worst-case pin-to-pin delay; industrial (I-suffix) and Pb-free/green (VQG100) variants share the same die and footprint.
Typical applications include embedded-system glue logic and bus bridging, microcontroller/FPGA boot and configuration control, industrial control panels, portable and battery-operated instruments, and communications line-card control functions. Anywhere a deterministic, non-volatile-configured logic device with near-zero standby power is required, this CPLD fits.
Designers should confirm I/O bank voltage compatibility and use the Xilinx ISE toolchain for fitting; the same footprint accepts industrial and green variants, simplifying second-source within the family.
This page adds engineering value beyond the datasheet: drop-in family alternatives, a parameter comparison table, practical design notes, application guidance, and sourcing information synthesized for procurement and design engineers.
Alternativas directas para XC2C256-7VQ100C — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con XC2C256-7VQ100C (mismo factor de forma y huella) — difiere en Package, Macrocells, Speed Grade, Family, Process Technology.
XC2C256-7VQ100I
✅ Sustitución directaConsulte el precio
Ver hoja de datos →XC2C256-7VQG100C
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XC2C256-7VQG100I
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XA2C256-7VQG100I
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XC2C256-7VQ100C Valores máximos y características eléctricas
| Family | CoolRunner-II |
| Macrocells | 256 |
| System Gates | 6K |
| Pin-to-Pin Delay | 7 ns |
| Max Internal Frequency | 152 MHz |
| Core Supply Voltage | 1.8 V |
| User I/O | 118 |
| Process Technology | 0.18 um CMOS |
| Encapsulado | 100-pin VQ100 TQFP/VQFP |
| Tipo de montaje | Surface Mount |
| Terminal Form | Gull Wing |
| Temperature Grade | Commercial (C) |
| Speed Grade | -7 |
| Programming Technology | Non-volatile Flash/EEPROM-based PLD |
Guía de configuración de pines de XC2C256-7VQ100C 100-pin vq100 tqfp/vqfp
Configuración de pines para XC2C256-7VQ100C (encapsulado 100-pin vq100 tqfp/vqfp). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para XC2C256-7VQ100C.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
XC2C256-7VQ100C es adecuado para 6 aplicacións: Embedded Glue Logic and Bus Interfacing, FPGA Configuration and Boot Control, Battery-Powered Portable Instruments, Industrial Control and Automation Panels, Communications Line-Card Control Logic, Legacy System Life Extension and Repair.
Embedded Glue Logic and Bus Interfacing
The XC2C256-7VQ100C's deterministic 7 ns pin-to-pin delay makes it ideal for glue logic between microprocessors, memory, and peripherals where every bus transaction has a guaranteed worst-case timing. Its 256 macrocells absorb address decoders, wait-state generators, chip-select logic, and bus transceiver control that would otherwise consume many discrete 74-series devices. The 118 user I/O pins in the 100-pin VQ100 package provide enough parallel I/O to interface an entire 16- or 32-bit data bus plus address and control lines on a single chip. Because CoolRunner-II timing does not shift when the design is recompiled, bus timing analysis done once remains valid across design revisions - a decisive advantage over FPGA implementations whose routing delays change with every fit.
Recomendado
FPGA Configuration and Boot Control
Non-volatile configuration and low standby power make the XC2C256-7VQ100C a natural supervisor for FPGA boot sequencing. It can implement power-rail monitoring state machines, reset distribution, configuration-mode pin control, and DONE-status handshake logic for a companion FPGA. The 1.8 V core keeps quiescent current in the microamp range, so the CPLD does not burden the system's always-on standby rail, and the 7 ns deterministic timing guarantees that reset and configuration-pin sequences meet setup times regardless of logic placement. With 256 macrocells there is ample room for an I2C/SPI-style configuration multiplexer that selects between multiple bitstream sources, enabling field fallback recovery on industrial and networking boards.
Recomendado
Battery-Powered Portable Instruments
The CoolRunner-II architecture was designed around low power, and the XC2C256's 1.8 V core reduces static and dynamic dissipation to levels that 3.3 V and 5 V CPLD generations cannot approach. In portable instruments, handheld meters, and battery-operated data loggers, the CPLD handles keypad scanning, display multiplexing, and power-gating control of analog blocks while drawing near-zero standby current. The non-volatile configuration means the logic is active within microseconds of power-up with no external boot device, conserving energy during frequent sleep-wake cycles. The 100-pin VQ100 QFP's 0.5 mm pitch is also rework-friendly for low-volume portable products where dense BGA packages would complicate field service.
Recomendado
Industrial Control and Automation Panels
Industrial control panels benefit from the XC2C256-7VQ100C's combination of deterministic timing, non-volatile configuration, and wide logic capacity. Typical roles include relay sequencing state machines, safety-interlock combinatorial voting logic, encoder quadrature decoding, and stepper/pulse distribution, where guaranteed 7 ns pin-to-pin response supports precise event timing. The commercial-grade C part suits enclosed panel environments, while the pin-compatible XC2C256-7VQ100I industrial-grade variant drops into the same footprint for cabinets exposed to -40 C to +85 C. Using the same PCB for both grades lets one layout serve standard and extended-temperature product SKUs, simplifying procurement and qualification.
Recomendado
Communications Line-Card Control Logic
Line cards and network interface boards use the XC2C256-7VQ100C for hot-swap control, LED status scanning, UART multiplexing, and PHY reset sequencing. The 256 macrocells implement multi-channel counters and handshaking blocks with clock rates up to the family's 152 MHz capability, sufficient for frame-synchronous logic at line-card rates. Deterministic CPLD timing simplifies the hot-swap state-machine verification that compliance testing demands. The CPLD's low power also reduces the card's overall thermal budget. For automotive-qualified networking variants of the same board, the pin-compatible XA2C256-7VQG100I allows reuse of the identical footprint with an enhanced qualification flow.
Recomendado
Legacy System Life Extension and Repair
The XC2C256-7VQ100C is frequently used to replace obsolete PAL, GAL, and 22V10 devices in legacy industrial and aerospace equipment repair. Its 256 macrocells comfortably absorb multiple ATF16V8/ATF22V10-class designs into one CoolRunner-II chip, and the ISE toolchain supports HDL migration from historic CUPL/ABEL source. Because the design is non-volatile, replacement boards power up exactly like the originals with no programming step in production. Community threads on the AMD support forum confirm that within-family variants (I, VQG100, XA suffixes) are the realistic substitutes when the exact C-grade ordering code is constrained, so designing the VQ100 footprint accommodates all of them.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para XC2C256-7VQ100C — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | XC2C256-7VQ100I | XC2C256-7VQG100C | XC2C256-7VQG100I | XA2C256-7VQG100I |
|---|---|---|---|---|---|
| Package | 100-pin VQ100 TQFP | 100-pin VQ100 TQFP - same | 100-pin VQG100 TQFP - same footprint, Pb-free/green | 100-pin VQG100 TQFP - same footprint, Pb-free/green | 100-pin VQG100 TQFP - same footprint |
| Brand | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) |
| Macrocells | 256 | 256 | 256 | 256 | 256 |
| Pin-to-Pin Delay | 7 ns (-7 speed grade) | 7 ns | 7 ns | 7 ns | 7 ns |
| Core Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| User I/O | 118 | 118 | 118 | 118 | 118 |
| Temperature Grade | Commercial (C) | Industrial (I) | Commercial (C), green package | Industrial (I), green package | Automotive-qualified, industrial range |
Diferenciadores clave
- Lowest-power option among 256-macrocell footprint variants (frente a XC2C256-7VQ100I)
- RoHS/green packaging path on the same footprint (frente a XC2C256-7VQG100C)
- Commercial-grade option for cost-sensitive volume builds (frente a XA2C256-7VQG100I)
Notas de diseño
Design the board's 1.8 V core rail with adequate decoupling: place at least one 0.1 uF ceramic capacitor per supply pin pair as close to the VQ100 package as possible, plus bulk capacitance of 4.7 uF or more near the device. The CoolRunner-II family's low dynamic current means the rail is often shared with other 1.8 V loads, so verify supply sag during simultaneous output switching. Confirm exact Icc numbers and pin assignments for VCCIO banks in the manufacturer datasheet rather than estimating.
The VQ100 TQFP has a 0.5 mm lead pitch with gull-wing leads on all four sides. Use an IPC-compatible QFP-100 land pattern and keep escape routing on the outer two rows before via transitions to preserve routability on 2-layer boards. Place pin 1 dot consistently with the datasheet mechanical drawing, and add a small silk polarity marker - mis-oriented QFP placement is one of the most common assembly defects on CPLD boards.
Do not interchange C and I temperature suffixes in designs qualified for extended temperatures: the XC2C256-7VQ100C is commercial grade, and industrial applications should order the XC2C256-7VQ100I or green VQG100I variant instead. Also, when migrating an existing design between CoolRunner-II family members (for example from XC2C256-7TQG144C), remember the 144-pin and 100-pin packages are not pin-compatible and require PCB redesign; only the VQ100/VQG100 suffix family shares the footprint.
Información de cumplimiento
RoHS/lead-free status for this exact ordering code should be confirmed on the AMD/Xilinx product page. The G-suffix VQG100 variants are the Pb-free/green packaged members of the same family; the automotive-qualified XA variant exists for automotive applications.
