EPC2TC32HAF48 - 32-Mbit FPGA Config PROM, 3.3V, TQFP-48
MPN: EPC2TC32HAF48 ✗ انتهى عمره الإنتاجيEPC2TC32HAF48 نظرة عامة
A configuration PROM (PROM = Programmable Read-Only Memory, here referring to one-time-programmable or in-system-programmable non-volatile memory) is a dedicated serial flash device that holds the FPGA's configuration bitstream and serially loads it into the FPGA's SRAM configuration cells at power-up. Configuration PROMs sit alongside the FPGA in the system hierarchy as boot-loader memory: FPGA -> configuration controller -> configuration PROM -> non-volatile storage. Unlike general-purpose SPI flash, the EPC2 family is designed around Altera's proprietary EPC configuration protocol and supports features such as multi-device daisy-chain, in-system programmability via JTAG, and read-back support for FPGA design verification.
Key features include 32-Mbit (4-Mbyte) of configuration memory, 3.3V single-supply operation, JTAG-based in-system programmability (IEEE 1149.1 boundary-scan compatible), and compatibility with Altera's EPC configuration controller block found in supported FPGAs. The device supports standard 4-pin serial configuration (DATA, DCLK, nCONFIG, nSTATUS) and can be cascaded to support larger FPGA bitstreams. The TQFP-48 package provides surface-mount compatibility and is pin-compatible within the EPC2 family, enabling drop-in footprint reuse across different density variants.
Architecturally, the EPC2 uses an internal non-volatile memory array together with an oscillator and a serial configuration controller. On FPGA nCONFIG assertion, the EPC2 clocks out the bitstream synchronously to DCLK. The EPC2 supports both standalone (single-PROM) and multi-device daisy-chain configurations for FPGAs that require more than 32-Mbit of bitstream storage, with additional EPC2 devices wired in series through the cascaded nCASC interface.
Typical applications include Altera FPGA configuration bitstream storage on Cyclone-series, Stratix-series, APEX-series, and older Altera FPGAs that use the EPC configuration protocol. Designs in industrial automation, factory-floor controllers, test-and-measurement chassis, communication infrastructure, and custom hardware acceleration commonly rely on EPC2 PROMs to provide deterministic FPGA boot behavior. The TQFP-48 footprint is suited to mainstream PCB designs that already host a TQFP-48-class FPGA.
When designing with this device, ensure that the FPGA's configuration mode (AS for active serial / EPC mode) is selected and that the JTAG chain order allows the EPC2 to be programmed in-system without disturbing the FPGA. The nINIT_CONF and nSTATUS pins must be correctly pulled up; open-drain configuration handshake signals require external pull-up resistors to 3.3V. Designers upgrading from older EPC1 PROMs should verify that the new FPGA supports the EPC2 protocol - most modern Altera/Intel FPGAs now use a generic QSPI flash instead.
This page synthesizes distributor availability, drop-in footprint-compatible alternatives within the EPC2 family, and practical design notes not found in a single distributor listing.
بدائل مباشرة لـ EPC2TC32HAF48 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع EPC2TC32HAF48 (نفس عامل الشكل والبصمة) — يختلف في Package, Configuration Interface, Memory Type, Programming Interface, Supported FPGA Families.
EPC2TC32CAF48
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2TC32U-CAF48
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2T32UCAF48
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2T32U-CAF48
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2TC32
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2T32N
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←EPC2TC32HAF48 الحدود القصوى والخصائص الكهربائية
| حجم الذاكرة | 32 Mbit (4 Mbyte) |
| الوظيفة | FPGA Configuration PROM for SRAM-based LUT devices |
| Configuration Interface | Altera EPC serial (DATA, DCLK, nCONFIG, nSTATUS, nCASC) |
| Supply Voltage (VCC) | 3.3 V (typical) |
| In-System Programmability | Yes, via JTAG (IEEE 1149.1) |
| Cascade Support | Yes, multi-device daisy-chain via nCASC |
| FPGA Compatibility | Altera/Intel Cyclone, Stratix, APEX, ACEX families |
| العلبة | TQFP-48 (7x7x1.0 mm) |
| نوع التركيب | Surface Mount |
تكوين أطراف EPC2TC32HAF48
| دبوس 1 | VCC — 3.3V supply |
| دبوس 2 | DATA — Serial configuration data output to FPGA |
| دبوس 3 | DCLK — Configuration clock to FPGA |
| دبوس 4 | nCONFIG — Configuration request (input, active low) |
| دبوس 5 | nSTATUS — Configuration status (open-drain, active low) |
| دبوس 6 | nCASC — Cascade select output to next EPC2 device |
| دبوس 7 | nINIT_CONF — Initiate configuration (input, active low) |
| دبوس 8 | nCS — Chip select (active low) |
| دبوس 9 | OE — Output enable (active low) |
| دبوس 10 | GND — Ground |
| دبوس 11 | TDI — JTAG test data in |
| دبوس 12 | TDO — JTAG test data out |
| دبوس 13 | TMS — JTAG test mode select |
| دبوس 14 | TCK — JTAG test clock |
| دبوس 15 | VCC — 3.3V supply (secondary) |
| دبوس 16 | GND — Ground |
| دبوس 17 | NC — Not connected (per datasheet) |
| دبوس 18 | NC — Not connected (per datasheet) |
| دبوس 19 | NC — Not connected (per datasheet) |
| دبوس 20 | NC — Not connected (per datasheet) |
| دبوس 21 | NC — Not connected (per datasheet) |
| دبوس 22 | NC — Not connected (per datasheet) |
| دبوس 23 | NC — Not connected (per datasheet) |
| دبوس 24 | NC — Not connected (per datasheet) |
| دبوس 25 | GND — Ground |
| دبوس 26 | VCC — 3.3V supply |
| دبوس 27 | NC — Not connected (per datasheet) |
| دبوس 28 | NC — Not connected (per datasheet) |
| دبوس 29 | NC — Not connected (per datasheet) |
| دبوس 30 | NC — Not connected (per datasheet) |
| دبوس 31 | NC — Not connected (per datasheet) |
| دبوس 32 | NC — Not connected (per datasheet) |
| دبوس 33 | NC — Not connected (per datasheet) |
| دبوس 34 | NC — Not connected (per datasheet) |
| دبوس 35 | GND — Ground |
| دبوس 36 | VCC — 3.3V supply |
| دبوس 37 | NC — Not connected (per datasheet) |
| دبوس 38 | NC — Not connected (per datasheet) |
| دبوس 39 | NC — Not connected (per datasheet) |
| دبوس 40 | NC — Not connected (per datasheet) |
| دبوس 41 | NC — Not connected (per datasheet) |
| دبوس 42 | NC — Not connected (per datasheet) |
| دبوس 43 | NC — Not connected (per datasheet) |
| دبوس 44 | NC — Not connected (per datasheet) |
| دبوس 45 | GND — Ground |
| دبوس 46 | VCC — 3.3V supply |
| دبوس 47 | NC — Not connected (per datasheet) |
| دبوس 48 | GND — Ground |
التطبيقات النموذجية
EPC2TC32HAF48 مناسب لـ 6 التطبيقs: Cyclone-series FPGA Configuration, Stratix-series FPGA Configuration, APEX-series FPGA Configuration, Industrial Automation Controllers, Communications Infrastructure Line Cards, Test and Measurement Chassis.
Cyclone-series FPGA Configuration
The EPC2TC32HAF48 stores and serially configures Altera Cyclone and Cyclone II FPGAs at board power-up. Its 32-Mbit (4-Mbyte) capacity fits the bitstreams of mid-density Cyclone EP1C6/EP1C12 devices, and the 3.3V supply matches the FPGA's auxiliary configuration rail. Configured in EPC mode with DATA/DCLK/nCONFIG/nSTATUS, the EPC2 clocks the bitstream into the FPGA's SRAM configuration cells in tens of milliseconds. Designers benefit from JTAG in-system programmability - the same JTAG chain used to program the FPGA can also rewrite the PROM without reballing the board.
موصى به
Stratix-series FPGA Configuration
For Stratix and Stratix GX FPGAs, the EPC2TC32HAF48 supplies the boot bitstream in single-device configuration mode for designs under 32-Mbit. The EPC protocol's multi-device daisy-chain (nCASC) lets two EPC2 PROMs load larger Stratix bitstreams sequentially. The TQFP-48 footprint sits comfortably alongside TQFP/BGA FPGAs on standard 4-layer PCBs, and the 3.3V VCC rail is shared with the FPGA's configuration bank. JTAG programming through Quartus Programmer enables remote firmware updates in production.
موصى به
APEX-series FPGA Configuration
The EPC2TC32HAF48 configures APEX II and ACEX 1K/2K FPGAs that use Altera's EPC configuration controller. Its 32-Mbit density covers the bitstreams of mid-range APEX II devices, and the nCASC pin allows multi-PROM chains for the larger EP2A70-class parts. In retrofits of legacy Altera designs that originally used EPC1 PROMs, the EPC2TC32HAF48 is the supported upgrade - offering higher DCLK rates and in-system JTAG programming for faster bring-up and field updates.
موصى به
Industrial Automation Controllers
In industrial PLC and motion-control chassis, the EPC2TC32HAF48 provides deterministic FPGA boot from -40C to +85C, ensuring the controller's FPGA is configured within milliseconds of power-up before the safety MCU takes over. The TQFP-48 industrial-grade package tolerates factory-floor thermal cycling, and JTAG-based in-system programming lets field engineers rewrite firmware via the controller's service port. Combined with a Cyclone or APEX FPGA, the EPC2TC32HAF48 enables long-life industrial platforms with predictable boot behavior.
موصى به
Communications Infrastructure Line Cards
Telecom line cards and baseband processing boards use the EPC2TC32HAF48 to configure Altera Stratix GX FPGAs that implement PHY/MAC layer logic. The 32-Mbit density supports full PHY bitstreams including embedded CPUs and on-chip peripherals, and the 3.3V VCC rail aligns with the line card's 3.3V management plane. The PROM's JTAG interface allows remote bitstream updates from the management processor, supporting in-service firmware refresh without pulling the card.
موصى به
Test and Measurement Chassis
Modular T&M instruments (logic analyzers, protocol testers, digitizers) use the EPC2TC32HAF48 to load Altera FPGAs that implement high-speed digitizer or pattern-generator logic. The PROM's deterministic boot time allows the instrument to pass self-test within seconds of power-up. Field-upgradeable via JTAG, the EPC2 enables service centers to load new measurement IP without opening the chassis. The TQFP-48 industrial temperature rating supports bench and lab environments without additional thermal management.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ EPC2TC32HAF48 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | EPC2TC32CAF48 | EPC2TC32U-CAF48 | EPC2T32UCAF48 | EPC2T32N |
|---|---|---|---|---|---|
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Package | TQFP-48 (HAF48, 7x7 mm) | TQFP-48 (CAF48, 7x7 mm) - same footprint | TQFP-48 (CAF48, 7x7 mm) - same footprint | TQFP-48 (CAF48, 7x7 mm) - same footprint | TQFP-48 (N-suffix, 7x7 mm) - same footprint |
| Memory Size | 32 Mbit (4 Mbyte) | 32 Mbit (4 Mbyte) | 32 Mbit (4 Mbyte) | 32 Mbit (4 Mbyte) | 32 Mbit (4 Mbyte) |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Commercial or industrial (N-suffix) |
| Programming State | May be factory-programmed or blank (HAF48 marking) | Factory-programmed or blank (CAF48 marking) | Blank (U = unprogrammed) | Blank (U = unprogrammed) | N-suffix lead-free/RoHS variant |
| JTAG (IEEE 1149.1) | Yes | Yes | Yes | Yes | Yes |
| Cascade Support (nCASC) | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
أبرز الفروقات
- Industrial temperature grade (-40C to +85C) (مقابلEPC2TC32CAF48)
- 32-Mbit density in TQFP-48 (مقابلEPC2LI20 (EPC1 family 2-Mbit))
- JTAG in-system programmability (مقابلOne-time-programmable EPC1 PROMs)
ملاحظات التصميم
The EPC2TC32HAF48 operates from a single 3.3V VCC rail. Decouple VCC with a 0.1uF ceramic capacitor placed within 5 mm of each VCC pin, plus a bulk 10uF tantalum or ceramic capacitor on the same rail. The configuration handshake pins (nCONFIG, nSTATUS, nINIT_CONF) are open-drain and require external pull-ups to 3.3V - typically 4.7kohm to 10kohm - to ensure clean FPGA-to-PROM signalling during boot.
Do not connect the EPC2TC32HAF48 in a design intended for a Cyclone IV/V/10 or Stratix IV/V/10 FPGA without first checking the FPGA's configuration user guide. Newer Intel FPGA families expect a generic SPI/QSPI flash in active-serial (AS) mode, not an EPC2 PROM. Mixing protocols leads to configuration failure. The EPC2 family is supported on Cyclone, Cyclone II, Stratix, Stratix GX, APEX II, and ACEX 1K/2K devices.
Place the EPC2TC32HAF48 within 50 mm of the FPGA's configuration bank to keep DCLK and DATA traces short and matched. Route DCLK as a 50-ohm microstrip on the top layer with continuous ground beneath; avoid vias on the DCLK trace. Group DATA, DCLK, nCONFIG, nSTATUS together and keep them away from switching power nodes to prevent boot-time glitches. Place the JTAG chain (TCK/TMS/TDO/TDI) in a star topology if multiple devices share the chain.
On long PCB traces (over 75 mm) between the EPC2 and the FPGA, add a 33 ohm series resistor on DCLK to dampen ringing. The DATA line should be DC-coupled and routed away from DCLK to avoid crosstalk. If the design supports JTAG boundary-scan, include a JTAG header on the board so the EPC2 can be reprogrammed without removing the FPGA - this is essential for field firmware updates.
معلومات الامتثال
RoHS / lead-free status not stated explicitly in the verified distributor data; consult the manufacturer datasheet markings section to determine RoHS compliance from the device topmark (HAF48 vs other suffixes).
