EPC2T32UCAF48 - Altera Configuration Device for FPGAs | QFP-48
Артикул: EPC2T32UCAF48 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.4 | $164,00 |
| 100 | $14.2 | $1.420,00 |
| 500 | $12.1 | $6.050,00 |
| 1.000 | $10.05 | $10.050,00 |
EPC2T32UCAF48 Обзор
A configuration PROM is a specialized non-volatile memory device used in FPGA-based systems to store the FPGA's bitstream and load it at power-up. The EPC2 family sits in the FPGA toolchain hierarchy as a companion device: FPGA -> SRAM-based LUT device -> programmable logic -> digital IC -> semiconductor. The EPC2T32UCAF48 occupies the configuration/boot-loader role between the system's flash storage and the target FPGA, enabling fast, deterministic multi-FPGA configuration chains without requiring an external microcontroller.
Key features include 32 Mbits of storage capacity, JTAG-compliant in-system programmability, support for serial and parallel configuration data formats, low-power CMOS technology, 3.3V typical supply, and cascadable design enabling multiple EPC2 devices to chain together for FPGA bitstreams larger than 32 Mbits. The device uses a 4-pin JTAG interface (TMS, TCK, TDI, TDO) for ISP and a 4-wire serial configuration interface (DATA0, DCLK, nCONFIG, CONF_DONE) for FPGA loading.
The EPC2T32UCAF48 implements a simple state machine that streams its internal flash array contents to the target FPGA on power-up or when nCONFIG is asserted. The architecture uses a sector-erasable flash array with built-in error detection, and the parallel interface can be configured 8-bit or 16-bit wide to match the target FPGA's configuration bus width.
Typical applications include single-FPGA boot storage in industrial controllers, multi-FPGA configuration chains in DSP and telecom boards, prototype bring-up and field-reprogrammable FPGA systems, and replacement of legacy Altera EPC1/EPC1441 PROMs in long-lifecycle products. The wide operating range and QFP-48 footprint also make it suitable for through-hole-compatible sockets used in test fixtures.
When designing with this device, ensure that nCONFIG and CONF_DONE are correctly tied to the target FPGA's configuration pins per Altera's configuration handbook. For multi-device chains, daisy-chain the nCASC and nCS pins and verify timing margin against the slowest FPGA in the chain.
This page synthesizes distributor stock levels, drop-in alternatives (EPC2T32N family and EPC2LC20N series), and practical chain-design guidance not found in the manufacturer datasheet alone.
Аналоги без доработки для EPC2T32UCAF48 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с EPC2T32UCAF48 (тот же форм-фактор и посадочное место) — отличается по Package, Configuration Interface, Memory Type, Supply Voltage (VCC), Interface.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPC2T32U
✅ Прямая замена✓ В наличии
$16.1 / шт.
Открыть даташит →EPC2T32U-CAF48
✅ Прямая замена✓ В наличии
$17.6 / шт.
Открыть даташит →EPC2T132U
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →EPC2T132N
✅ Прямая замена✓ В наличии
$17.8 / шт.
Открыть даташит →EPC2T32
✅ Прямая замена✓ В наличии
$8.7 / шт.
Открыть даташит →EPC2LC20N
✅ Прямая замена✓ В наличии
$7.4 / шт.
Открыть даташит →EPC2T32UCAF48 Максимальные параметры и электрические характеристики
| Device Type | Configuration PROM for SRAM-based FPGAs |
| Memory Capacity | 32 Mbit |
| Интерфейс | Serial / Parallel configuration; JTAG (IEEE 1149.1) ISP |
| Напряжение питания | 3.0 V to 3.6 V (3.3 V typical) |
| Configuration Modes | Serial, Parallel (8/16-bit) |
| JTAG Interface | 4-wire (TMS, TCK, TDI, TDO) |
| Cascade Support | Yes (nCASC pin for multi-device chains) |
| Корпус | QFP-48 (CAF48) |
| Тип монтажа | Surface Mount |
| Process Technology | CMOS non-volatile memory |
| Manufacturer | Intel (formerly Altera) |
| Series | EPC2 (Enhanced Configuration Device) |
Конфигурация выводов EPC2T32UCAF48
| Контакт 1 | DATA0 — Serial configuration data output / parallel bit 0 |
| Контакт 2 | DATA1 — Parallel configuration data bit 1 |
| Контакт 3 | DATA2 — Parallel configuration data bit 2 |
| Контакт 4 | DATA3 — Parallel configuration data bit 3 |
| Контакт 5 | DATA4 — Parallel configuration data bit 4 |
| Контакт 6 | DATA5 — Parallel configuration data bit 5 |
| Контакт 7 | DATA6 — Parallel configuration data bit 6 |
| Контакт 8 | DATA7 — Parallel configuration data bit 7 |
| Контакт 9 | GND — Ground |
| Контакт 10 | TDI — JTAG Test Data In |
| Контакт 11 | TMS — JTAG Test Mode Select |
| Контакт 12 | TCK — JTAG Test Clock |
| Контакт 13 | TDO — JTAG Test Data Out |
| Контакт 14 | VCC — 3.3V supply |
| Контакт 15 | nCS — Chip Select (active low) |
| Контакт 16 | nCASC — Cascade output (active low) |
| Контакт 17 | nSTATUS — Configuration status to FPGA |
| Контакт 18 | CONF_DONE — Configuration complete signal |
| Контакт 19 | nCONFIG — Configuration reset from FPGA |
| Контакт 20 | DCLK — Configuration clock |
| Контакт 21 | VCC — 3.3V supply |
| Контакт 22 | GND — Ground |
| Контакт 23 | NC — Not connected |
| Контакт 24 | NC — Not connected |
| Контакт 25 | NC — Not connected |
| Контакт 26 | NC — Not connected |
| Контакт 27 | NC — Not connected |
| Контакт 28 | NC — Not connected |
| Контакт 29 | NC — Not connected |
| Контакт 30 | NC — Not connected |
| Контакт 31 | NC — Not connected |
| Контакт 32 | NC — Not connected |
| Контакт 33 | NC — Not connected |
| Контакт 34 | NC — Not connected |
| Контакт 35 | NC — Not connected |
| Контакт 36 | NC — Not connected |
| Контакт 37 | NC — Not connected |
| Контакт 38 | NC — Not connected |
| Контакт 39 | NC — Not connected |
| Контакт 40 | NC — Not connected |
| Контакт 41 | NC — Not connected |
| Контакт 42 | NC — Not connected |
| Контакт 43 | NC — Not connected |
| Контакт 44 | NC — Not connected |
| Контакт 45 | NC — Not connected |
| Контакт 46 | NC — Not connected |
| Контакт 47 | NC — Not connected |
| Контакт 48 | GND — Ground |
Типичное применение
EPC2T32UCAF48 подходит для 6 применениеs: Cyclone FPGA Boot Storage, Stratix FPGA Configuration Chain, Multi-FPGA Industrial Control Board, Legacy APEX 20K Replacement PROM, Telecom DSP Board Boot Loader, Test & Measurement Instrumentation.
Cyclone FPGA Boot Storage
The EPC2T32UCAF48 stores the 32-Mbit-class configuration bitstream for Altera Cyclone series FPGAs in industrial controller boards. Placed between the system 3.3V rail and the FPGA's configuration pins, it streams the bitstream on power-up via the standard Altera DATA0/DCLK/nCONFIG/CONF_DONE interface. The 32-Mbit capacity matches mid-density Cyclone II/III/IV devices in single-PROM mode, eliminating the need for an external boot microcontroller. Compared with discrete parallel flash, the EPC2T32UCAF48 simplifies the BOM and supports JTAG in-system reprogramming via the 4-wire IEEE 1149.1 port for field firmware updates.
Рекомендуется
Stratix FPGA Configuration Chain
For larger Stratix FPGAs exceeding the EPC2T32UCAF48's single-device capacity, two or more EPC2 PROMs are cascaded using the nCASC pin to extend the bitstream storage beyond 32 Mbits. The first device in the chain holds the low-address range, and the second holds the high-address range, transparently streaming contiguous data to the Stratix's parallel configuration port. This application exploits the EPC2 family's standardized cascade protocol, allowing designers to scale boot storage linearly by adding identical parts to the chain rather than redesigning the boot logic.
Рекомендуется
Multi-FPGA Industrial Control Board
In multi-FPGA industrial control boards (such as PLC or motion-controller designs), the EPC2T32UCAF48 serves as the master boot source for multiple Altera FPGAs on the same board, each loaded sequentially through the chain. The 3.3V supply matches the FPGA VCCIO, eliminating level shifters, and the JTAG port allows the EPC2 and all chained FPGAs to be reprogrammed through a single 10-pin header. The QFP-48 footprint is large enough for hand-soldering during prototype rework, an advantage in small-batch industrial production runs.
Рекомендуется
Legacy APEX 20K Replacement PROM
The EPC2T32UCAF48 replaces legacy Altera EPC1, EPC1441, and APEX boot PROMs in long-lifecycle products, providing a JTAG-programmable, higher-density 32-Mbit alternative. Designers can drop the EPC2T32UCAF48 into the same JTAG chain and configuration bus as the legacy part, provided the FPGA's configuration interface is standard Altera DATA0/DCLK. This simplifies field upgrades for medical, aerospace, and industrial systems where the FPGA is mature but a higher-capacity boot device is needed to support new firmware features.
Рекомендуется
Telecom DSP Board Boot Loader
In telecom DSP boards based on Stratix or Cyclone FPGAs, the EPC2T32UCAF48 acts as a deterministic boot source that ensures the FPGA enters a known state within milliseconds of power-up - critical for carrier-grade reliability and hot-swap recovery. Unlike discrete flash, the EPC2's configuration timing is matched to the FPGA's requirements, eliminating hand-tuned wait-state logic. The serial-mode operation reduces FPGA pin consumption, freeing GPIO for signal-processing interfaces.
Рекомендуется
Test & Measurement Instrumentation
The EPC2T32UCAF48 supports JTAG-based bitstream updates in test and measurement instruments (oscilloscopes, signal analyzers, data-acquisition boards), enabling end-of-line calibration data and firmware revisions without opening the enclosure. The QFP-48 package is well-suited for socketed programming during factory test, allowing the EPC2 to be pre-loaded with customer-specific configuration before final assembly. The 32-Mbit capacity supports instrument-grade FPGA bitstreams that include calibration tables and IP cores.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPC2T32UCAF48 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPC2T32U | EPC2T32U-CAF48 | EPC2T132U | EPC2T132N | EPC2T32 |
|---|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | QFP-48 (CAF48) | QFP-48 (CAF48) | QFP-48 (CAF48) | QFP-48 (CAF48) | QFP-48 (CAF48) | QFP-48 (CAF48) |
| Memory Capacity | 32 Mbit | 32 Mbit | 32 Mbit | Higher-density family member | Higher-density family member | 32 Mbit base |
| Interface | Serial / Parallel / JTAG | Serial / Parallel / JTAG | Serial / Parallel / JTAG | Serial / Parallel / JTAG | Serial / Parallel / JTAG | Serial / Parallel / JTAG |
| Supply Voltage | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V |
| JTAG ISP | Yes | Yes | Yes | Yes | Yes | Yes |
| Cascade Support | Yes (nCASC) | Yes | Yes | Yes | Yes | Yes |
| Function | Configuration PROM | Configuration PROM | Configuration PROM | Configuration PROM (higher density) | Configuration PROM (higher density) | Configuration PROM |
Ключевые отличия
- 32-Mbit capacity within standard QFP-48 footprint (против EPC2LC20N (lower-density EPC2 sibling))
- Higher-density upgrade path within same family (против EPC2T32U base variant)
- JTAG ISP support with single-header programming (против Older EPC1-series PROMs)
- Native cascade chain for >32 Mbit bitstreams (против Discrete flash boot solutions)
Заметки по проектированию
Do not connect nCONFIG to the FPGA's nCONFIG pin with a pull-up that conflicts with the EPC2's drive strength; Altera configuration handbooks require nCONFIG to be driven by the system controller or left unasserted during EPC2 power-up. Adding a 1 kohm pull-up to nCONFIG is acceptable to define the state during power ramp, but verify timing in the configuration handbook. Incorrect nCONFIG handling is the #1 cause of failed FPGA boot from EPC2 PROMs.
Keep the DCLK trace between the EPC2 and the target FPGA short (< 50 mm on FR-4) and route it away from switching power converter nodes. The EPC2 drives DCLK at frequencies up to 100 MHz in parallel mode; excessive trace length causes clock skew that violates the FPGA's DCLK setup/hold time and results in intermittent configuration errors. Series-terminate DCLK with a 33 ohm resistor near the EPC2 if the trace exceeds 25 mm.
Place the EPC2T32UCAF48 within 25 mm of the target FPGA's configuration pins to minimize bus loading. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, plus a 10 uF bulk capacitor on the same supply rail. Decoupling the JTAG supply (TDI/TDO) is optional but recommended if the JTAG chain is long; use a ferrite bead to isolate JTAG noise from the configuration supply.
Power-up sequencing is not critical for the EPC2T32UCAF48 itself, but the target FPGA requires nSTATUS to be sampled after VCC is stable. According to Altera configuration handbook, hold the target FPGA in reset (nCONFIG low) for at least 100 us after EPC2 VCC reaches 3.0V to ensure proper initialization. Failure to observe this timing can cause the FPGA to enter an undefined configuration state.
Информация о соответствии
RoHS/REACH compliance status not explicitly listed in the verified distributor data; consult Intel/Altera material declaration for the specific manufacturing lot. Configuration PROMs are not AEC-Q100 qualified as they target commercial/industrial FPGA platforms, not automotive ECU applications.
