EP3C16U256C7 - Cyclone III FPGA, 15408 LEs | Intel/Altera
N.º de pieza: EP3C16U256C7 ✓ ActivoEP3C16U256C7 Descripción general
An FPGA is a programmable-logic semiconductor whose internal lookup tables, registers, interconnect, and memory blocks can be configured after manufacture. Within the semiconductor hierarchy, this device belongs to the Cyclone III family of FPGAs and CPLDs, positioned below higher-density programmable-logic devices for cost-conscious designs that still need substantial parallel logic, on-chip memory, and flexible I/O allocation.
The verified device data identifies 15,408 logic elements, 516,096 RAM bits, and 168 I/Os. Cross-reference information associates the device with the 65 nm Cyclone III process and lists a maximum clock frequency of 437.5 MHz, while one comparison listing reports a 1.2 V core supply. These figures make the EP3C16U256C7 suitable for parallel data acquisition, industrial control, protocol bridging, and general-purpose embedded logic rather than high-performance processor systems.
The EP3C16U256C7 uses a 256-LFBGA package, making dense board routing and careful via-in-pad or microvia considerations important in multilayer PCB construction. Its 168 user I/Os provide connectivity for external memory, communication transceivers, sensors, and digital control signals. Configuration, clocking, and power-distribution details should be taken directly from the complete manufacturer device handbook and pin-connection guidelines.
Typical uses include industrial automation modules, data-acquisition front ends, communication gateways, LED and display control, sensor aggregation, and embedded protocol converters. The 516,096 RAM bits can buffer sampled data or implement dual-port storage, while the 15,408 logic elements support parallel pipelines, state machines, protocol engines, and control logic.
When designing the power system, budget for the 1.2 V core rail as well as bank-dependent I/O supplies, and separate high-current and sensitive routes to reduce coupling. Verify ball assignments, decoupling requirements, configuration-scheme support, and maximum I/O standards against the complete Cyclone III documentation before layout release.
This page consolidates current distributor availability, sourced pricing, verified resource counts, and same-family replacement guidance into one engineering-focused view. It also distinguishes exact drop-in options from lower-speed or industrial-grade variants whose qualification and timing margin must be reviewed before schematic approval.
Alternativas directas para EP3C16U256C7 — 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 EP3C16U256C7 (mismo factor de forma y huella) — difiere en Package, Mounting Type, Logic Elements, Device Type, Embedded Memory.
EP3C16U256C7N
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EP3C16F256C7
✅ Sustitución directaConsulte el precio
Ver hoja de datos →EP3C16F256I7N
✅ Sustitución directaConsulte el precio
Ver hoja de datos →EP3C16U256C6
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →EP3C16U256C8N
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →EP3C16U256C7 Valores máximos y características eléctricas
| Device Type | Cyclone III Field Programmable Gate Array (FPGA) |
| Logic Elements | 15,408 |
| Embedded RAM | 516,096 bits |
| User I/O Count | 168 |
| Encapsulado | 256-LFBGA |
| Technology | 65 nm |
| Core Supply Voltage | 1.2 V |
| Frecuencia de reloj máxima | 437.5 MHz |
| Manufacturer | Intel/Altera |
| Series | Cyclone III |
| Tipo de montaje | Surface Mount |
Guía de configuración de pines de EP3C16U256C7 256-lfbga
Configuración de pines para EP3C16U256C7 (encapsulado 256-lfbga). 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 EP3C16U256C7.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
EP3C16U256C7 es adecuado para 6 aplicacións: Industrial Control and Automation, Data Acquisition and Signal Conditioning, Communication Gateway and Protocol Bridging, Sensor Aggregation and Edge Processing, Display and LED Control, Embedded Processor and Coprocessor.
Industrial Control and Automation
The EP3C16U256C7 fits compact industrial control logic because its 15,408 logic elements can implement motion-state machines, interlocks, counters, and sequencing logic while 516,096 RAM bits provide local data buffering. The 168 user I/Os allow direct connections to encoders, limit switches, digital I/O modules, and actuator drivers. Using the 1.2 V core rail and separate I/O supplies helps separate sensitive core power from noisy output drivers, although industrial suitability must be confirmed against the device's verified temperature grade. For production designs, check every supported voltage standard and supply rail against the complete Cyclone III device handbook.
Recomendado
Data Acquisition and Signal Conditioning
The EP3C16U256C7 is suitable for parallel data-acquisition front ends that require deterministic sampling, digital filtering, and time alignment. Its 15,408 logic elements can pipeline ADC data and implement FIR or decimation functions, while the 516,096-bit RAM capacity can buffer several acquisition frames. The 168 I/Os provide parallel connections to converters and capture devices without relying on a high-speed serial link. Clocking quality and the reported 437.5 MHz maximum frequency require careful review of board-level skew, jitter, and the selected timing closure, so use the manufacturer clocking guidance rather than treating the headline frequency as an automatic system-level result.
Recomendado
Communication Gateway and Protocol Bridging
The EP3C16U256C7 can implement parallel-to-serial protocol conversion, packet buffering, and interface bridging in communication modules. The 15,408 logic elements support transmit and receive state machines, while 516,096 RAM bits provide storage for packet queues or streaming data. Its 168 I/Os are useful for byte-wide buses and multiple chip-select signals, and the device can coexist with dedicated transceivers on the same board. Because protocol timing and clock-domain crossing dominate system reliability, designers should use the Quartus device fitter and the complete Cyclone III timing guidance to validate each crossing and preserve the required I/O voltage standards.
Recomendado
Sensor Aggregation and Edge Processing
The EP3C16U256C7 fits edge-processing modules that must combine outputs from several digital sensors before forwarding summarized data. Its 15,408 logic elements can execute filtering, thresholding, calibration tables, and event classification, while the 516,096-bit RAM can temporarily retain time-stamped sensor samples. The 168 user I/Os permit attachment to multiple buses or discrete sensor interfaces without a separate microcontroller in simple designs. Power and signal integrity are especially important in compact IoT hardware: place decoupling close to the BGA balls, route sensitive interfaces away from switching supplies, and verify the allowable input levels and drive strengths for every connected sensor.
Recomendado
Display and LED Control
The EP3C16U256C7 is practical for LED matrices, multiplexed displays, and visual status panels because 168 I/Os provide substantial parallel drive capability and 15,408 logic elements can generate refresh timing, character rendering, and animation patterns. The 516,096 bits of RAM can store fonts, bitmap frames, or animation sequences. Designers can use dedicated I/O standards to match external drivers while keeping the core on its 1.2 V supply. Because a 256-LFBGA requires fine-pitch routing and careful return paths, the board layout should minimize crosstalk on long parallel display outputs and provide direct ground references beneath signal groups.
Recomendado
Embedded Processor and Coprocessor
The EP3C16U256C7 can serve as a hardware coprocessor or fixed-function accelerator alongside a host controller. Its 15,408 logic elements can implement parallel arithmetic pipelines, CRC engines, filters, or encryption-related datapaths, and the 516,096 RAM bits can hold lookup tables or intermediate buffers. The 168 I/Os allow direct host-bus interfacing and accelerator result transfer. The target's verified core supply is 1.2 V, while programmable I/O banks support board-level voltage compatibility that must be confirmed from the complete device documentation. This arrangement is attractive when deterministic hardware acceleration is preferable to executing the same workload in software.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para EP3C16U256C7 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | EP3C16U256C7N | EP3C16F256C7 | EP3C16F256I7N | EP3C16U256C6 | EP3C16U256C8 |
|---|---|---|---|---|---|---|
| Package | 256-LFBGA | 256-LFBGA | 256-LFBGA | 256-LFBGA | 256-LFBGA | 256-LFBGA |
| Brand | Intel/Altera | Intel/Altera | Intel/Altera | Intel/Altera | Intel/Altera | Intel/Altera |
| Logic Elements | 15,408 | 15,408 | 15,408 | 15,408 | 15,408 | 15,408 |
| Embedded RAM | 516,096 bits | 516,096 bits | 516,096 bits | 516,096 bits | 516,096 bits | 516,096 bits |
| User I/O Count | 168 | 168 | 168 | 168 | 168 | 168 |
| Process Technology | 65 nm | 65 nm | 65 nm | 65 nm | 65 nm | 65 nm |
| Speed or Order-Code Difference | C7 code | C7N code | F256C7 code | F256I7N code | C6 speed code | C8 speed code |
Diferenciadores clave
- Verified mid-density Cyclone III resource balance (frente a EP3C16F256I7N)
- Higher C7 speed positioning than the same-family C6 option (frente a EP3C16U256C6)
- Verified distributor pricing and availability (frente a EP3C16U256C8)
- Direct resource equivalence within the Cyclone III 256-ball family (frente a EP3C16U256C7N)
Notas de diseño
The verified core supply is 1.2 V, but the complete device still requires the correct bank and auxiliary supplies. Follow the Cyclone III power-supply sequence and decoupling guidance rather than treating the core rail as the device's only power requirement. Place high-frequency decoupling capacitors close to the relevant BGA power balls, keep high-current return paths compact, and separate noisy I/O returns from sensitive core references.
A 256-LFBGA footprint requires a multilayer PCB with short, directly referenced power and ground connections. Provide a dense via array under the device where the manufacturer footprint permits, minimize loop area for switching current, and route the 168 possible user signals with controlled escape geometry. Validate the board stack-up, via-in-pad process, and solder-assembly thermal profile before releasing artwork.
Do not assume that the reported 437.5 MHz maximum device frequency guarantees the same board-level operating frequency. External clock jitter, package skew, I/O standard, load capacitance, and trace geometry determine the achievable interface rate. Use the Quartus timing analyzer with the real board constraints, preserve the recommended clock input arrangement, and avoid long unprotected stubs on high-speed outputs.
The most common sourcing mistake is assuming that all similarly numbered Cyclone III devices are exact substitutes. The EP3C16U256C7N, EP3C16F256C7, and EP3C16F256I7N may differ in speed, temperature grade, construction, or electrical characteristics. Before substitution, compare the manufacturer package drawings, pin-connection lists, timing reports, voltage tables, and qualification data. Also confirm that the programmer and configuration file support the selected ordering code.
Información de cumplimiento
The supplied verified excerpts do not explicitly state RoHS, REACH, halogen-free, conflict-minerals, or AEC-Q100 status. No compliance claim has been inferred from the package type or distributor availability.
