EPC2TC32-U-CAF48 - 1.6Mb ISP Config PROM | Altera (Intel PSG)
MPN: EPC2TC32-U-CAF48 ✓ פעילEPC2TC32-U-CAF48 סקירה
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.
חלופות תחליף ישיר עבור EPC2TC32-U-CAF48 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם EPC2TC32-U-CAF48 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature, Memory Size, Memory Type, Supply Voltage.
EPC2TC32
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPC1TC32
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPC2T32U-CAF48
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPC1TI32
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPC1441TC32
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←EPC2TC32-U-CAF48 דירוגים מרביים ומאפיינים חשמליים
| גודל זיכרון | 1.6 Mb |
| פונקציה | In-system programmable configuration PROM |
| מתח אספקה | 3.3 V |
| ממשק | 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 |
| מארז | 32-TQFP (7x7 mm) |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | -40C to +85C (industrial, per data sheet) |
| מספר פינים | 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 |
תצורת פינים של EPC2TC32-U-CAF48
| פין 1 | DATA — Serial configuration data output to FPGA DATA0 |
| פין 2 | DCLK — Configuration clock (internal oscillator output to FPGA) |
| פין 3 | OE — Output enable (active high, enables DATA driver) |
| פין 4 | nCS — Chip select (active low) |
| פין 5 | nCE — Chip enable (active low, with internal pull-up) |
| פין 6 | VCC — 3.3 V core supply |
| פין 7 | GND — Ground |
| פין 8 | TDI — JTAG test data in |
| פין 9 | TMS — JTAG test mode select |
| פין 10 | TCK — JTAG test clock |
| פין 11 | TDO — JTAG test data out |
| פין 12 | NC — Not connected |
| פין 13 | NC — Not connected |
| פין 14 | NC — Not connected |
| פין 15 | NC — Not connected |
| פין 16 | NC — Not connected |
| פין 17 | NC — Not connected |
| פין 18 | NC — Not connected |
| פין 19 | NC — Not connected |
| פין 20 | NC — Not connected |
| פין 21 | NC — Not connected |
| פין 22 | NC — Not connected |
| פין 23 | NC — Not connected |
| פין 24 | NC — Not connected |
| פין 25 | NC — Not connected |
| פין 26 | NC — Not connected |
| פין 27 | nINIT_CONF — Configuration initialization (per datasheet) |
| פין 28 | VPP — Programming voltage supply |
| פין 29 | GND — Ground |
| פין 30 | VCC — 3.3 V core supply |
| פין 31 | NC — Not connected |
| פין 32 | NC — Not connected |
יישומים טיפוסיים
EPC2TC32-U-CAF48 מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור EPC2TC32-U-CAF48 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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) |
מבדילים עיקריים
- 1.6 Mb density with JTAG ISP in 32-TQFP (לעומתEPC1441TC32)
- Cascadable DATA output for multi-PROM chains (לעומתEPC1TC32)
- Identical die across CAF48 ordering variants (לעומתEPC2TC32)
הערות תכנון
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.
מידע על תאימות
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.
