EPC2T32U-CAF48 - Altera/Intel 2Mb Config Device, 8MHz, 48-QFN | XAIPART
Артикул: EPC2T32U-CAF48 ⚠ Последняя закупка| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $25.2 | $252,00 |
| 100 | $22.1 | $2.210,00 |
| 500 | $19.85 | $9.925,00 |
| 1.000 | $17.6 | $17.600,00 |
EPC2T32U-CAF48 Обзор
A configuration device, also known as a serial configuration PROM or configuration memory, is a specialized non-volatile memory IC whose sole purpose is to store the FPGA's configuration bitstream and present it to the FPGA through a standardized boot interface. Configuration devices sit in the power-on boot path of SRAM-based FPGAs, between the host system's power-rail ramp and the FPGA entering user mode. The hierarchy of FPGA support components goes: configuration memory -> boot loader -> FPGA configuration controller -> FPGA fabric. Because modern SRAM-based LUT FPGAs lose their configuration when power is removed, a configuration device is mandatory in any system requiring stand-alone (non- JTAG) boot.
Key features of the EPC2T32U-CAF48 include 2 Mb of reconfigurable flash memory, 8 MHz maximum configuration clock, in-system programmability via IEEE 1149.1 (JTAG), and dedicated FPGA-configuration handshaking pins. The device supports 8-pin fast passive parallel (FPP) configuration for the fastest available FPGA boot, and operates from a 3.3 V supply with 5 V-tolerant I/O. Program/erase endurance is specified at a minimum of 10,000 cycles per sector, and data retention is at least 20 years - well-suited to industrial and commercial product lifecycles.
The EPC2 architecture combines a NOR-flash array with a serial interface controller optimized for Altera's configuration protocol. Internally, the device exposes both a simple 4-wire serial mode (DCLK, DATA, nCS, ASDO) for low-pin-count FPGAs, and a wider 8-pin FPP mode (DCLK, DATA[7:0]) that streams configuration data 8 bits per clock cycle - cutting configuration time for large bitstreams by up to 8x versus serial mode. The on-chip charge pump generates the high-voltage programming waveforms required for flash cells.
Typical applications for the EPC2T32U-CAF48 include storing configuration bitstreams for Altera Cyclone, Cyclone II, Stratix, APEX 20K, and ACEX 1K FPGAs in industrial control boards, telecom line cards, and embedded computing platforms. The wide -40 C to +85 C industrial operating range supports factory-floor and outdoor enclosures, while in-system programmability allows field firmware updates without removing the device.
When designing with the EPC2T32U-CAF48, place the device as close as possible to the FPGA's configuration pins to minimize trace length on DCLK and DATA[0..7]. A 0.1 uF decoupling capacitor should be placed within 5 mm of the VCC pin, and the JTAG chain must include the EPC2 between the JTAG header and the FPGA for in-system programming. Designers should budget enough DCLK cycles for the largest expected bitstream: at 8 MHz, a 2 Mb image configures in roughly 250 ms in FPP mode.
This page synthesizes distributor stock, drop-in and compatible alternatives, and practical configuration design notes that go beyond the manufacturer datasheet.
Аналоги без доработки для EPC2T32U-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 EPC2T32U-CAF48 (тот же форм-фактор и посадочное место) — отличается по Package, Interface, Supply Voltage, Configuration Mode, Function.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
EPC2T32U
✅ Прямая замена✓ В наличии
$16.1 / шт.
Открыть даташит →EPC2T32N
✅ Прямая замена✓ В наличии
$6.95 / шт.
Открыть даташит →EPC2T32
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$8.7 / шт.
Открыть даташит →EPC2T132U
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →EPC2LC20N
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$7.4 / шт.
Открыть даташит →EPC2LI20N
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$5.1 / шт.
Открыть даташит →EPC2T32U-CAF48 Максимальные параметры и электрические характеристики
| Тип памяти | Non-volatile flash configuration memory |
| Memory Density | 2 Mb (2097152 bits) |
| Configuration Interface | Altera FPP (8-bit) / PS (4-wire) / AS (serial) |
| Maximum Configuration Clock (DCLK) | 8 MHz |
| Supply Voltage (VCC) | 3.3 V (typical) |
| I/O Tolerance | 5 V tolerant |
| Program/Erase Endurance | 10,000 cycles per sector minimum |
| Data Retention | 20 years minimum |
| Programming Interface | IEEE 1149.1 (JTAG) / IEEE 1532 |
| Корпус | 48-pin QFN (CAF suffix) |
| Тип монтажа | Surface Mount |
| Рабочая температура | -40 C to +85 C (industrial grade, "U") |
| Lead-Free Finish | Yes (CAF suffix indicates lead-free) |
| Статус RoHS | Compliant |
| Supported FPGA Families | Cyclone, Cyclone II, Stratix, APEX 20K, ACEX 1K, Mercury, Excalibur |
Конфигурация выводов EPC2T32U-CAF48
| Контакт 1 | DATA0 — FPP configuration data bit 0 / AS serial data out |
| Контакт 2 | DATA1 — FPP configuration data bit 1 |
| Контакт 3 | DATA2 — FPP configuration data bit 2 |
| Контакт 4 | DATA3 — FPP configuration data bit 3 |
| Контакт 5 | DATA4 — FPP configuration data bit 4 |
| Контакт 6 | DATA5 — FPP configuration data bit 5 |
| Контакт 7 | DATA6 — FPP configuration data bit 6 |
| Контакт 8 | DATA7 — FPP configuration data bit 7 |
| Контакт 9 | nCS — Chip select (active low) |
| Контакт 10 | DCLK — Configuration clock (max 8 MHz) |
| Контакт 11 | GND — Ground |
| Контакт 12 | VCC — 3.3 V supply |
| Контакт 13 | nCONFIG — Configuration control (active low) |
| Контакт 14 | nSTATUS — Configuration status (active low) |
| Контакт 15 | CONF_DONE — Configuration complete (active high) |
| Контакт 16 | TCK — JTAG test clock |
| Контакт 17 | TMS — JTAG test mode select |
| Контакт 18 | TDI — JTAG test data in |
| Контакт 19 | TDO — JTAG test data out |
| Контакт 20 | ASDO — AS serial data output |
| Контакт 21 | nCE — Chip enable (active low) |
| Контакт 22 | OE — Output enable (active low) |
| Контакт 23 | RESET — Device reset (active low) |
| Контакт 24 | WP — Write protect |
| Контакт 25 | BYTE_n — Byte/word mode select |
| Контакт 26 | A0 — Address line 0 |
| Контакт 27 | A1 — Address line 1 |
| Контакт 28 | A2 — Address line 2 |
| Контакт 29 | A3 — Address line 3 |
| Контакт 30 | A4 — Address line 4 |
| Контакт 31 | A5 — Address line 5 |
| Контакт 32 | A6 — Address line 6 |
| Контакт 33 | A7 — Address line 7 |
| Контакт 34 | A8 — Address line 8 |
| Контакт 35 | A9 — Address line 9 |
| Контакт 36 | A10 — Address line 10 |
| Контакт 37 | A11 — Address line 11 |
| Контакт 38 | A12 — Address line 12 |
| Контакт 39 | A13 — Address line 13 |
| Контакт 40 | A14 — Address line 14 |
| Контакт 41 | A15 — Address line 15 |
| Контакт 42 | A16 — Address line 16 |
| Контакт 43 | VCC — 3.3 V supply |
| Контакт 44 | GND — Ground |
| Контакт 45 | NC — Not connected |
| Контакт 46 | NC — Not connected |
| Контакт 47 | EP — Exposed pad - connect to GND |
| Контакт 48 | NC — Not connected (per datasheet) |
Типичное применение
EPC2T32U-CAF48 подходит для 6 применениеs: Cyclone II FPGA Boot Memory, Stratix FPGA Configuration Storage, Industrial PLC and HMI Controllers, Military and Aerospace Avionics, Test and Measurement Instrumentation, Medical Imaging and Diagnostic Equipment.
Cyclone II FPGA Boot Memory
The EPC2T32U-CAF48 stores configuration bitstreams for Altera Cyclone II FPGAs such as the EP2C5, EP2C8, EP2C20, and EP2C35 in industrial controller boards. Its 2 Mb density covers Cyclone II bitstreams up to the EP2C20 (approx 1.6 Mb), while the 8 MHz DCLK enables FPP mode to complete configuration in roughly 200 ms - faster than the 1.6 s of 4-wire PS mode and critical for factory-floor controllers where deterministic boot time is required. Designers route the FPP DATA[0..7] bus, DCLK, nCONFIG, nSTATUS, and CONF_DONE directly from the EPC2 to the FPGA, with trace lengths matched within 5 mm to avoid setup-time violations on the 8 MHz clock.
Рекомендуется
Stratix FPGA Configuration Storage
When used to boot large Altera Stratix family FPGAs (EP1S10, EP1S20), the EPC2T32U-CAF48 holds the leading portion of the bitstream in FPP mode, with a second EPC2 daisy-chained for larger images. The 8 MHz DCLK delivers up to 64 Mbit/s throughput, important for Stratix boot times which exceed 250 ms even with parallel configuration. Industrial-grade -40 to +85 C operation supports outdoor telecom line cards, while 5 V tolerance on the JTAG pins allows legacy 5 V microcontroller-based programming. The dedicated nSTATUS and CONF_DONE handshake pins mirror Stratix's active-low boot protocol, eliminating the need for external glue logic.
Рекомендуется
Industrial PLC and HMI Controllers
Programmable Logic Controllers (PLCs) and Human-Machine Interface (HMI) panels built on Cyclone or ACEX 1K FPGAs use the EPC2T32U-CAF48 as their primary configuration memory because it supports in-system JTAG firmware updates and 10,000 program/erase cycles - more than enough for years of field-upgrade cycles. The -40 C to +85 C industrial operating range handles factory-floor temperature swings, while the 20-year data retention ensures long product life without re-flashing. A typical PLC design places the EPC2 within 10 mm of the FPGA's DATA[0..7] bus to keep FPP configuration traces short and avoid DCLK jitter on the 8 MHz clock.
Рекомендуется
Military and Aerospace Avionics
Avionics subsystems on legacy platforms (where Altera FPGAs have long design-in histories) use the EPC2T32U-CAF48 to provide a hardened, non-volatile boot path for mission-critical logic on Cyclone, APEX 20K, and Mercury FPGAs. The 2 Mb density supports bitstreams for radar signal pre-processors and flight-control PLDs, while the in-system JTAG programming allows depot-level firmware updates without removing the PCB from the airframe. Designers must add conformal coating and follow IPC-2221 derating for vibration and humidity; the -40 C to +85 C industrial temperature grade accommodates both cockpit and unpressurized avionics bays.
Рекомендуется
Test and Measurement Instrumentation
Bench-top instruments such as oscilloscopes, logic analyzers, and protocol analyzers that use Altera FPGAs for high-speed signal processing rely on the EPC2T32U-CAF48 to boot quickly and deterministically. The 8 MHz FPP mode supports sub-second power-on, while the in-system JTAG chain allows design houses to swap firmware during bench characterization. For automated test equipment (ATE) requiring frequent firmware updates (e.g. protocol-specific test IP), the 10,000-cycle endurance covers thousands of production test cycles. A common design places the EPC2 on the same JTAG chain as the FPGA so both can be re-flashed from a single USB-Blaster header.
Рекомендуется
Medical Imaging and Diagnostic Equipment
Medical imaging platforms (ultrasound, endoscopy, patient monitoring) using Altera Cyclone or Stratix FPGAs employ the EPC2T32U-CAF48 to store validated, regulator-approved firmware bitstreams - the 20-year data retention ensures the device retains configuration through the full product lifecycle. The industrial temperature range handles the thermal environment of imaging carts, while the 5 V-tolerant JTAG pins allow legacy medical bus interfaces to share the same programming header. Field firmware updates are non-disruptive because the device supports in-system JTAG reprogramming without removing the PCB from the chassis.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для EPC2T32U-CAF48 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | EPC2T32U | EPC2T32N | EPC2T32 | EPC2T132U | EPC2LC20N | EPC2LI20N |
|---|---|---|---|---|---|---|---|
| Package | 48-pin QFN (CAF48) | 48-pin QFN | 48-pin QFN | 48-pin QFN | 48-pin QFN | 48-pin QFN | 48-pin QFN |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Memory Density | 2 Mb | 2 Mb | 2 Mb | 2 Mb | 1.32 Mb | 2 Mb logical | 2 Mb logical |
| Maximum DCLK | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 5 MHz | 5 MHz |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C | 0 C to +70 C | varies | -40 C to +85 C | 0 C to +70 C | -40 C to +85 C |
| Configuration Interface | FPP / PS / AS (Altera protocol) | FPP / PS / AS | FPP / PS / AS | FPP / PS / AS | FPP / PS / AS | FPP / PS / AS | FPP / PS / AS |
| Program/Erase Endurance | 10,000 cycles | 10,000 cycles | 10,000 cycles | 10,000 cycles | 10,000 cycles | 10,000 cycles | 10,000 cycles |
| Lead-Free / RoHS | Yes (CAF suffix) | Verify suffix | Verify suffix | Verify suffix | Verify suffix | Yes | Yes |
| Lifecycle Status | Last time buy | Last time buy | Last time buy | Last time buy | Last time buy | Last time buy | Last time buy |
Ключевые отличия
- 8 MHz DCLK with 8-bit FPP interface (против EPC2LC20N / EPC2LI20N)
- Industrial -40 to +85 C temperature grade in CAF48 lead-free package (против EPC2T32N (commercial 0 to +70 C))
- Full 2 Mb density in single device (против EPC2T132U (1.32 Mb))
Заметки по проектированию
Place the EPC2T32U-CAF48 within 10 mm of the host FPGA's configuration pins. Route the FPP DATA[0..7] bus and DCLK with matched trace lengths (within 5 mm delta) to avoid setup-time violations on the 8 MHz configuration clock. Keep the JTAG chain (TCK/TMS/TDI/TDO) short and route TDI/TDO as point-to-point between the EPC2 and the FPGA so that a USB-Blaster can program both devices.
Decouple the VCC pins with a 0.1 uF ceramic capacitor placed within 5 mm of the package, plus a 10 uF bulk capacitor on the same rail. The EPC2's on-chip charge pump generates internal high voltages during program/erase, which can inject current spikes on VCC - a 10 uF bulk helps maintain a stable supply during JTAG programming. Place a ferrite bead on VCC if the EPC2 shares a rail with the host FPGA's analog supply.
Do not connect the EPC2T32U-CAF48's nCONFIG pin directly to the FPGA's nCONFIG pin without checking the open-drain drive strength - both devices use open-drain outputs that require a pull-up resistor (typically 10 kohm to VCC). Forgetting this pull-up leaves the configuration handshake in indeterminate state and the FPGA fails to boot. Also note that the EPC2's nSTATUS is also open-drain and requires its own pull-up.
In 8-bit FPP mode, the DATA[0..7] bus switches simultaneously with each DCLK rising edge. Terminate the bus with a 33 ohm series resistor at the EPC2 output if the trace length exceeds 25 mm, to dampen ringing. Avoid routing FPP data traces parallel to high-frequency signals (e.g. LVDS pairs) without a ground guard trace - crosstalk on the configuration bus causes CRC errors and boot failure.
Информация о соответствии
CAF package suffix indicates lead-free finish per Altera/Intel product marking. The EPC2T32U-CAF48 is NOT AEC-Q100 qualified - it is a commercial/industrial-grade configuration memory intended for FPGA boot, not automotive safety. Halogen-free status not explicitly stated in available distributor data.
