EPC2T32UCAF48 - Altera Configuration Device for FPGAs | QFP-48
MPN: EPC2T32UCAF48 ✓ AktifEPC2T32UCAF48 Ringkasan
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.
Alternatif penggantian untuk EPC2T32UCAF48 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian EPC2T32UCAF48 (sama faktor bentuk dan footprint) — berbeda di dalam Package, Configuration Interface, Memory Type, Supply Voltage (VCC), Interface.
EPC2T32U
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPC2T32U-CAF48
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPC2T132U
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPC2T132N
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPC2T32
✅ Drop-InKontak untuk harga
Lihat Datasheet →EPC2LC20N
✅ Drop-In✗ Habis Stok
$7.4 / Satuan
Lihat Datasheet →EPC2T32UCAF48 Rating Maksimal & Karakteristik Listrik
| Device Type | Configuration PROM for SRAM-based FPGAs |
| Memory Capacity | 32 Mbit |
| Antarmuka | Serial / Parallel configuration; JTAG (IEEE 1149.1) ISP |
| Tegangan Pemuat | 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) |
| Paket | QFP-48 (CAF48) |
| Tipe Mounting | Surface Mount |
| Process Technology | CMOS non-volatile memory |
| Manufacturer | Intel (formerly Altera) |
| Series | EPC2 (Enhanced Configuration Device) |
Konfigurasi Pin EPC2T32UCAF48
| Pin produk 1 | DATA0 — Serial configuration data output / parallel bit 0 |
| Pin produk 2 | DATA1 — Parallel configuration data bit 1 |
| Pin produk 3 | DATA2 — Parallel configuration data bit 2 |
| Pin produk 4 | DATA3 — Parallel configuration data bit 3 |
| Pin produk 5 | DATA4 — Parallel configuration data bit 4 |
| Pin produk 6 | DATA5 — Parallel configuration data bit 5 |
| Pin produk 7 | DATA6 — Parallel configuration data bit 6 |
| Pin produk 8 | DATA7 — Parallel configuration data bit 7 |
| Pin produk 9 | GND — Ground |
| Pin produk 10 | TDI — JTAG Test Data In |
| Pin produk 11 | TMS — JTAG Test Mode Select |
| Pin produk 12 | TCK — JTAG Test Clock |
| Pin produk 13 | TDO — JTAG Test Data Out |
| Pin produk 14 | VCC — 3.3V supply |
| Pin produk 15 | nCS — Chip Select (active low) |
| Pin produk 16 | nCASC — Cascade output (active low) |
| Pin produk 17 | nSTATUS — Configuration status to FPGA |
| Pin produk 18 | CONF_DONE — Configuration complete signal |
| Pin produk 19 | nCONFIG — Configuration reset from FPGA |
| Pin produk 20 | DCLK — Configuration clock |
| Pin produk 21 | VCC — 3.3V supply |
| Pin produk 22 | GND — Ground |
| Pin produk 23 | NC — Not connected |
| Pin produk 24 | NC — Not connected |
| Pin produk 25 | NC — Not connected |
| Pin produk 26 | NC — Not connected |
| Pin produk 27 | NC — Not connected |
| Pin produk 28 | NC — Not connected |
| Pin produk 29 | NC — Not connected |
| Pin produk 30 | NC — Not connected |
| Pin produk 31 | NC — Not connected |
| Pin produk 32 | NC — Not connected |
| Pin produk 33 | NC — Not connected |
| Pin produk 34 | NC — Not connected |
| Pin produk 35 | NC — Not connected |
| Pin produk 36 | NC — Not connected |
| Pin produk 37 | NC — Not connected |
| Pin produk 38 | NC — Not connected |
| Pin produk 39 | NC — Not connected |
| Pin produk 40 | NC — Not connected |
| Pin produk 41 | NC — Not connected |
| Pin produk 42 | NC — Not connected |
| Pin produk 43 | NC — Not connected |
| Pin produk 44 | NC — Not connected |
| Pin produk 45 | NC — Not connected |
| Pin produk 46 | NC — Not connected |
| Pin produk 47 | NC — Not connected |
| Pin produk 48 | GND — Ground |
Aplikasi Umum
EPC2T32UCAF48 cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk EPC2T32UCAF48 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- 32-Mbit capacity within standard QFP-48 footprint (vsEPC2LC20N (lower-density EPC2 sibling))
- Higher-density upgrade path within same family (vsEPC2T32U base variant)
- JTAG ISP support with single-header programming (vsOlder EPC1-series PROMs)
- Native cascade chain for >32 Mbit bitstreams (vsDiscrete flash boot solutions)
Catatan Desain
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.
Informasi Konformitas
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.
