EPC2TC32-U-CAF48 - 1.6Mb ISP Config PROM | Altera (Intel PSG)
Артикул: EPC2TC32-U-CAF48 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $11.4 | $5.700,00 |
| 1.000 | $9.95 | $9.950,00 |
EPC2TC32-U-CAF48 Обзор
A configuration PROM is a non-volatile memory device that retains the FPGA's configuration bitstream and serially transfers it to the target FPGA at power-up. In the Altera architecture hierarchy, the EPC2 family sits below the enhanced configuration devices (EPC4, EPC8, EPC16) in density but is fully ISP-capable through the IEEE 1149.1 JTAG interface. Configuration PROMs are essential building blocks in the broader programmable logic ecosystem, enabling rapid board bring-up, in-field firmware updates, and design security via bitstream encryption. The EPC2TC32 supports single-device configuration for Altera FPGAs including ACEX 1K, FLEX 10K, APEX 20K, Mercury, Cyclone, and Stratix series.
Key features include 1.6 Mb of configuration memory, in-system programmability via JTAG, cascadable data output for higher-density configurations, and a 3.3 V core supply. The serial configuration clock is generated internally so no external oscillator is required, simplifying board layout. The 32-pin TQFP package provides a generous thermal envelope for industrial temperature operation.
Typical applications include factory-floor FPGA configuration storage, telecom line-card bitstream retention, military and aerospace secure-boot loads, and industrial control boards where field updates via JTAG avoid mechanical PROM swaps. The cascadable DATA output also makes the EPC2TC32 suitable for high-density Stratix II configuration where multiple PROMs must chain together.
When designing with this device, treat the JTAG chain as a four-wire TAP (TCK, TMS, TDI, TDO) and include a 4.7 kohm pull-up on nCE per Altera application guidance. Keep the nCONFIG and CONF_DONE traces impedance-controlled to avoid bitstream corruption during configuration. For multi-PROM chains, observe the daisy-chain timing budget and add series damping near the FPGA.
This page synthesizes distributor pricing, drop-in alternatives within the EPC2 and EPC1 families, and practical configuration-chain design notes not consolidated in the manufacturer datasheet.
Аналоги без доработки для EPC2TC32-U-CAF48 — 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 EPC2TC32-U-CAF48 (тот же форм-фактор и посадочное место) — отличается по Package, Operating Temperature, Memory Size, Memory Type, Supply Voltage.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPC2TC32
✅ Прямая замена✓ В наличии
$14.5 / шт.
Открыть даташит →EPC1TC32
✅ Прямая замена✓ В наличии
$9.75 / шт.
Открыть даташит →EPC2T32U-CAF48
✅ Прямая замена✓ В наличии
$17.6 / шт.
Открыть даташит →EPC1TI32
✅ Прямая замена✓ В наличии
$9.95 / шт.
Открыть даташит →EPC1441TC32
✅ Прямая замена✓ В наличии
$9.75 / шт.
Открыть даташит →EPC2TC32-U-CAF48 Максимальные параметры и электрические характеристики
| Размер памяти | 1.6 Mb |
| Функция | In-system programmable configuration PROM |
| Напряжение питания | 3.3 V |
| Интерфейс | Serial synchronous (Altera FPGA configuration) |
| Programming Interface | IEEE 1149.1 JTAG |
| Control Pins | OE, nCS, DCLK |
| Cascadable | Yes (DATA output supports daisy-chain) |
| Storage Technology | EPROM |
| Корпус | 32-TQFP (7x7 mm) |
| Тип монтажа | Surface Mount |
| Рабочая температура | -40C to +85C (industrial, per data sheet) |
| Число выводов | 32 |
| DC Input Min | -0.3 V |
| DC Input Overshoot | 7.0 V for <100 mA, <20 ns |
| DC Input Undershoot | -2.0 V for <100 mA, <20 ns |
Конфигурация выводов EPC2TC32-U-CAF48
| Контакт 1 | DATA — Serial configuration data output to FPGA DATA0 |
| Контакт 2 | DCLK — Configuration clock (internal oscillator output to FPGA) |
| Контакт 3 | OE — Output enable (active high, enables DATA driver) |
| Контакт 4 | nCS — Chip select (active low) |
| Контакт 5 | nCE — Chip enable (active low, with internal pull-up) |
| Контакт 6 | VCC — 3.3 V core supply |
| Контакт 7 | GND — Ground |
| Контакт 8 | TDI — JTAG test data in |
| Контакт 9 | TMS — JTAG test mode select |
| Контакт 10 | TCK — JTAG test clock |
| Контакт 11 | TDO — JTAG test data out |
| Контакт 12 | NC — Not connected |
| Контакт 13 | NC — Not connected |
| Контакт 14 | NC — Not connected |
| Контакт 15 | NC — Not connected |
| Контакт 16 | NC — Not connected |
| Контакт 17 | NC — Not connected |
| Контакт 18 | NC — Not connected |
| Контакт 19 | NC — Not connected |
| Контакт 20 | NC — Not connected |
| Контакт 21 | NC — Not connected |
| Контакт 22 | NC — Not connected |
| Контакт 23 | NC — Not connected |
| Контакт 24 | NC — Not connected |
| Контакт 25 | NC — Not connected |
| Контакт 26 | NC — Not connected |
| Контакт 27 | nINIT_CONF — Configuration initialization (per datasheet) |
| Контакт 28 | VPP — Programming voltage supply |
| Контакт 29 | GND — Ground |
| Контакт 30 | VCC — 3.3 V core supply |
| Контакт 31 | NC — Not connected |
| Контакт 32 | NC — Not connected |
Типичное применение
EPC2TC32-U-CAF48 подходит для 6 применениеs: Altera Cyclone FPGA Configuration Storage, APEX 20K and Mercury FPGA Boot PROM, Telecom Line-Card Bitstream Retention, Industrial Control Board Firmware Updates, Military and Aerospace Secure-Boot Loads, Multi-PROM Cascaded Configuration Chains.
Altera Cyclone FPGA Configuration Storage
The EPC2TC32-U-CAF48 is sized to hold the complete bitstream of Altera Cyclone series FPGAs (Cyclone, Cyclone II, Cyclone III) in single-device configuration mode. Its 1.6 Mb density matches the typical Cyclone EP1C6/EP1C12 configuration image, eliminating the need to cascade multiple PROMs. The JTAG ISP interface lets board firmware be updated in factory without removing the PROM, shortening production rework cycles.
Рекомендуется
APEX 20K and Mercury FPGA Boot PROM
Mid-density Altera FPGAs in the APEX 20K and Mercury families fit comfortably inside the 1.6 Mb EPC2TC32-U-CAF48 window, making this PROM the canonical single-chip solution for these legacy devices. The cascadable DATA output also allows two EPC2 PROMs to chain together if the design later moves to a larger APEX 20KE device. Designers benefit from JTAG ISP for board-level firmware rollouts in OEM equipment.
Рекомендуется
Telecom Line-Card Bitstream Retention
In telecom line cards, the EPC2TC32-U-CAF48 stores the configuration image for FLEX 10K and ACEX 1K FPGAs that drive glue logic and PHY interfaces. The -40C to +85C industrial temperature range (per the data sheet) supports outdoor cabinet deployment. JTAG ISP enables remote firmware rollouts via card-edge JTAG headers, a critical capability for carrier-grade equipment that must be reconfigured without service interruption.
Рекомендуется
Industrial Control Board Firmware Updates
Industrial PLCs and motion-control boards use the EPC2TC32-U-CAF48 as the boot source for FLEX 10K or ACEX 1K glue-logic FPGAs that manage I/O scanning and fieldbus interfaces. The JTAG ISP capability lets service technicians load new FPGA revisions through the same JTAG header used during factory test, avoiding PROM socket mechanical wear. The 32-TQFP package tolerates the conformal coating and reflow profiles typical of industrial assembly.
Рекомендуется
Military and Aerospace Secure-Boot Loads
Defense and avionics programs leverage the EPC2TC32-U-CAF48 as a non-volatile configuration source for Stratix and APEX 20K FPGAs implementing secure boot paths. Because the PROM is one-time programmable per bitstream image, it provides physical tamper resistance against bitstream extraction. The cascadable DATA output allows dual-PROM redundancy schemes for mission-critical boards, with JTAG ISP reserved for factory-only programming under controlled access.
Рекомендуется
Multi-PROM Cascaded Configuration Chains
When the target FPGA bitstream exceeds 1.6 Mb, multiple EPC2 PROMs can be cascaded by connecting the DATA output of PROM N to the DATA input of PROM N+1. The EPC2TC32-U-CAF48 is typically used as the head PROM in such chains, with EPC4TC32, EPC8, or EPC16 devices following. The internal oscillator of each EPC2 frees the FPGA from generating the configuration clock, simplifying the FPGA bitstream and reducing software complexity.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPC2TC32-U-CAF48 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPC2TC32 | EPC1TC32 | EPC2T32U-CAF48 | EPC1TI32 | EPC1441TC32 |
|---|---|---|---|---|---|---|
| Brand | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) | Altera (Intel PSG) |
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same |
| Memory Size | 1.6 Mb | 1.6 Mb | 0.8 Mb | 1.6 Mb | 0.8 Mb | 0.44 Mb |
| JTAG In-System Programming | Yes | Yes | No | Yes | No | No |
| Cascadable DATA Output | Yes | Yes | No | Yes | No | No |
| Programming Type | ISP (JTAG) + EPROM array | ISP (JTAG) + EPROM array | EPROM array (no ISP) | ISP (JTAG) + EPROM array | EPROM array (no ISP) | One-time programmable EPROM |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Target FPGA Families | Cyclone, APEX 20K, FLEX 10K, ACEX 1K, Mercury, Stratix | Same as EPC2TC32-U-CAF48 | ACEX 1K, FLEX 10K, smaller Cyclone | Same as EPC2TC32-U-CAF48 | ACEX 1K, FLEX 10K, smaller Cyclone (industrial) | FLEX 10K, ACEX 1K (legacy) |
Ключевые отличия
- 1.6 Mb density with JTAG ISP in 32-TQFP (против EPC1441TC32)
- Cascadable DATA output for multi-PROM chains (против EPC1TC32)
- Identical die across CAF48 ordering variants (против EPC2TC32)
Заметки по проектированию
Place the EPC2TC32-U-CAF48 within 50 mm of the target FPGA's DATA0, DCLK, and nCONFIG pins. Keep the configuration clock trace impedance-controlled (50 ohm microstrip) and avoid routing it near switching power converter edges. Add a 4.7 kohm pull-up on nCE per Altera application guidance to prevent spurious chip-disable during power-up ramp.
Estimated: at the maximum DCLK rate of ~33 MHz (per Altera FLEX 10K configuration timing), the DATA line should be treated as a 50 ohm controlled-impedance trace. Add a 33 ohm series damping resistor at the FPGA end if the cable/connector length exceeds 25 mm, and keep stubs below 5 mm to suppress reflections.
Do not confuse the EPC2TC32-U-CAF48 (1.6 Mb, JTAG ISP) with the EPC1441TC32 (0.44 Mb, OTP). Both share the 32-TQFP footprint but the latter cannot hold a Cyclone bitstream and lacks in-system programmability. Also avoid leaving nCS floating; tie it high through 10 kohm unless the FPGA actively controls it during multi-PROM cascade.
Информация о соответствии
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not present in the verified web data and are flagged as unknown. AEC-Q100 is not applicable as this is a configuration storage PROM, not a safety-critical analog/digital IC.
