EPC1441TC32 - 440Kb OTP FPGA Config PROM | Altera | 32-TQFP
料号： EPC1441TC32 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
EPC1441TC32 概述
What is a configuration PROM? A configuration PROM is a non-volatile memory device that stores FPGA bitstream data and serializes it to the target FPGA at power-up via a dedicated configuration interface (typically Altera's passive serial, fast passive parallel, or passive parallel asynchronous schemes). Because SRAM-based FPGAs lose their configuration when power is removed, a configuration PROM provides the boot image that the FPGA loads on every power-up, sitting between system power and the FPGA's CONF_DONE/nCONFIG pins. Configuration PROMs sit inside the hierarchy: PROM -> non-volatile memory -> memory IC -> integrated circuit -> semiconductor.
Key features of the EPC1441TC32 include a 440-Kbit (55,000 byte) flash-based storage core, a 16.7 MHz internal oscillator that supports the FPGA configuration clock domain, and 5.0 V / 3.3 V in-system programmability (ISP) through the built-in IEEE 1149.1 JTAG interface. The device supports daisy-chain configuration of multiple FPGAs and is compatible with ACEX 1K, APEX 20K, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K, FLEX 6000, Mercury, Stratix, Stratix GX, Stratix II, and Stratix II GX device families.
The internal architecture is divided into two major blocks: a configuration controller and the flash memory array. The controller handles the JTAG ISP, the serial configuration clock generation, and the FPGA handshaking via nSTATUS, nCONFIG, and CONF_DONE signals. The flash memory stores the compressed or uncompressed bitstream; the controller reads it out sequentially on FPGA request. The EPC1441 family uses page-mode programming to accelerate ISP, reducing factory programming time compared with byte-mode legacy EPC devices.
Typical applications include boot-configuration storage for industrial PLC FPGA controller boards, telecommunications line-card FPGAs, military/aerospace single-board computers using Stratix or APEX devices, and legacy industrial systems requiring long-life-cycle OTP memory. The OTP nature makes the device well suited to designs where the bitstream is finalized at production and never requires field update.
When designing with the EPC1441TC32, observe JTAG chain ordering when the FPGA shares the JTAG bus - the PROM must appear in the expected BSDL scan position. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, and respect the 5 V / 3.3 V I/O tolerance when interfacing to a 2.5 V or 1.8 V FPGA bank.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： EPC1441TC32 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EPC1441TC32 （相同外形与封装尺寸） ——差异在于 Package, Configuration Interface, Memory Type, Supported FPGA Families, Memory Size.
快速对比工具——选择替代料号进行并排对比：
EPC1441TC-32
✅ 直接替换✓ 有现货
$10.85 / 个
查看数据手册 →EPC1441T32
✅ 直接替换✓ 有现货
$7.1 / 个
查看数据手册 →EPC1441LC20
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →EPC1441LI20
✅ 直接替换✓ 有现货
$8.1 / 个
查看数据手册 →EPC1064TC32
✅ 直接替换✓ 有现货
$3.68 / 个
查看数据手册 →EPC1441TC32 最大额定值与电气特性
| 存储器类型 | OTP Configuration PROM (flash-based) |
| 存储容量 | 440 Kbit (55000 byte) |
| Programmability | One-Time Programmable (OTP) |
| 电源电压 | 3.3 V / 5.0 V |
| Internal Oscillator | 16.7 MHz |
| In-System Programming | IEEE 1149.1 JTAG, 3.3 V / 5.0 V |
| Supported FPGA Families | ACEX 1K, APEX 20K, APEX II, Arria GX, Cyclone, Cyclone II, FLEX 10K, FLEX 6000, Mercury, Stratix, Stratix GX, Stratix II, Stratix II GX |
| Configuration Modes | Passive Serial, Fast Passive Parallel, Passive Parallel Asynchronous |
| Daisy Chain Support | Yes |
| 封装 | 32-TQFP (7 mm x 7 mm) |
| 工作温度 | Commercial (0C to +70C) |
| 安装类型 | Surface Mount |
| Terminal Form | Gull Wing |
| Terminal Pitch | 0.8 mm |
| MSL 等级 | 3 (168 hours) |
EPC1441TC32 引脚配置
| 引脚 1 | GND — Ground |
| 引脚 2 | TDI — JTAG Test Data In |
| 引脚 3 | TMS — JTAG Test Mode Select |
| 引脚 4 | TCK — JTAG Test Clock |
| 引脚 5 | nSTATUS — Configuration status to FPGA (active low) |
| 引脚 6 | nCONFIG — Configuration control from FPGA (active low) |
| 引脚 7 | CONF_DONE — Configuration-complete handshaking |
| 引脚 8 | VCC — Supply voltage 3.3 V / 5.0 V |
| 引脚 9 | DCLK — Configuration clock output to FPGA |
| 引脚 10 | DATA — Configuration data output to FPGA |
| 引脚 11 | nCS — Chip select (active low) from FPGA |
| 引脚 12 | nOE — Output enable (active low) from FPGA |
| 引脚 13 | TDO — JTAG Test Data Out |
| 引脚 14 | GND — Ground |
| 引脚 15 | NC — Not connected (per datasheet) |
| 引脚 16 | NC — Not connected (per datasheet) |
| 引脚 17 | VCC — Supply voltage 3.3 V / 5.0 V |
| 引脚 18 | NC — Not connected (per datasheet) |
| 引脚 19 | NC — Not connected (per datasheet) |
| 引脚 20 | GND — Ground |
| 引脚 21 | NC — Not connected (per datasheet) |
| 引脚 22 | NC — Not connected (per datasheet) |
| 引脚 23 | VCC — Supply voltage 3.3 V / 5.0 V |
| 引脚 24 | NC — Not connected (per datasheet) |
| 引脚 25 | NC — Not connected (per datasheet) |
| 引脚 26 | GND — Ground |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | NC — Not connected (per datasheet) |
| 引脚 29 | NC — Not connected (per datasheet) |
| 引脚 30 | NC — Not connected (per datasheet) |
| 引脚 31 | NC — Not connected (per datasheet) |
| 引脚 32 | NC — Not connected (per datasheet) |
典型应用
EPC1441TC32 适用于 6 应用s: Industrial PLC FPGA Boot Configuration, Telecommunications Line-Card FPGA, Legacy Military / Aerospace SBC, Test & Measurement Instrumentation, Medical Imaging FPGA Coprocessor, Server & Storage Controller Cards.
Industrial PLC FPGA Boot Configuration
The EPC1441TC32 is used as a single-device boot PROM for Altera Cyclone or APEX-based FPGA controller boards inside industrial PLCs and motor-control chassis. Its 440 Kbit density covers typical Cyclone configuration bitstreams, and its 5 V / 3.3 V ISP-compatible JTAG interface allows factory programming during the PLC burn-in stage. Because the device is OTP, the bitstream is locked at production, eliminating field-tampering risk on factory-floor equipment. Engineers place it adjacent to the FPGA with a 0.1 uF decoupling capacitor and route the JTAG chain through both the PROM and the FPGA for boundary-scan testing.
推荐
Telecommunications Line-Card FPGA
Inside telecom line cards the EPC1441TC32 provides the bitstream for a Stratix or APEX II FPGA implementing high-speed SERDES glue logic, framing, and packet processing. The PROM's 16.7 MHz internal oscillator drives the FPGA's passive serial configuration clock, and its support for daisy-chain configuration lets one PROM feed multiple FPGAs on the same line card. The 5 V tolerance eases legacy 5 V backplane integration, while JTAG ISP allows factory re-programming for last-minute firmware revisions before the card ships to the central office.
推荐
Legacy Military / Aerospace SBC
Single-board computers in military and aerospace systems based on the FLEX 10K, FLEX 6000, or Mercury FPGA families boot from the EPC1441TC32. The OTP nature of the PROM is an advantage here: the bitstream cannot be modified or corrupted in the field, satisfying tamper-resistance and deterministic-boot requirements common in defense electronics. The 32-TQFP (7x7 mm) package is amenable to the ruggedized SMT assembly flows typical of avionics manufacturing. The PROM's wide FPGA-family support allows a single SBC BOM to host different FPGAs across product variants without redesigning the boot circuit.
推荐
Test & Measurement Instrumentation
Bench-top and rack-mounted test instruments (oscilloscopes, logic analyzers, signal generators) use the EPC1441TC32 to boot Altera FPGAs that implement real-time DSP, trigger logic, and display pipelines. The 440 Kbit density covers mid-range Cyclone-II and APEX designs; the JTAG ISP interface enables production programming during instrument calibration. The commercial temperature grade (0C to +70C) is a perfect match for the controlled thermal environment of an instrument chassis, and the small 32-TQFP footprint keeps the boot circuit compact on densely populated DSP boards.
推荐
Medical Imaging FPGA Coprocessor
Medical imaging platforms (ultrasound, CT, MRI front-end) use Altera Stratix-II or APEX 20K FPGAs as real-time image-pipeline coprocessors, with the EPC1441TC32 as the boot device. The OTP nature guarantees a fixed, FDA-traceable firmware load every time the system powers up - a critical compliance attribute. The PROM's daisy-chain capability lets the same chip also boot an adjacent control FPGA, reducing BOM cost on the imaging board. The wide VCC tolerance (3.3 V / 5.0 V) simplifies integration with mixed-voltage analog front-ends that share the same PCB.
推荐
Server & Storage Controller Cards
RAID controllers, HBA cards, and SSD controller cards built on Altera APEX 20K or Stratix FPGAs use the EPC1441TC32 to boot their configuration image at PCIe enumeration time. The 5 V tolerant JTAG ISP port allows the PROM to be programmed either before or after board assembly depending on factory flow. The OTP memory ensures the controller firmware is immutable in the field, which is desirable for RAID write-journal logic where the FPGA must run a known-good image on every cold boot. The 32-TQFP SMD package is straightforward to place on the dense controller PCB.
推荐
推荐产品汇总
工程参考数据： EPC1441TC32 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | EPC1441TC-32 | EPC1441T32 | EPC1441LC20 | EPC1441LI20 | EPC1064TC32 |
|---|---|---|---|---|---|---|
| Brand | Altera (now Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) | Altera (Intel FPGA) |
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 20-PLCC - different | 20-PLCC - different | 32-TQFP (7x7) - same |
| Memory Size | 440 Kbit (55000 byte) | 440 Kbit | 440 Kbit | 440 Kbit | 440 Kbit | 64 Kbit (-85%) |
| Programmability | OTP (one-time) | OTP | OTP | OTP | OTP | OTP |
| Supply Voltage | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V | 3.3 V / 5.0 V |
| Internal Oscillator | 16.7 MHz | 16.7 MHz | 16.7 MHz | 16.7 MHz | 16.7 MHz | 16.7 MHz |
| In-System Programming | JTAG (IEEE 1149.1) | JTAG | JTAG | JTAG | JTAG | JTAG |
| Operating Temperature | Commercial (0C to +70C) | Commercial | Commercial | Commercial | Industrial | Commercial |
| Lifecycle Status | Obsolete (mature) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
关键差异点
- Broadest Altera/Intel FPGA family coverage in the EPC1xxx family （对比 EPC1064TC32)
- Surface-mount 32-TQFP package for high-density production boards （对比 EPC1441LC20)
- Industry-standard JTAG ISP for factory programming （对比 EPC1441PCB)
设计说明
Place the EPC1441TC32 adjacent to the target FPGA on the same PCB side, with VCC decoupled by a 0.1 uF ceramic capacitor within 5 mm of the VCC pin. Multiple VCC and GND pins exist on the 32-TQFP package - tie each one to its respective plane with a via to the underlying power or ground pour. The DATA, DCLK, nSTATUS, nCONFIG, and CONF_DONE traces should be length-matched (within 5 mm) to avoid setup/hold violations at 16.7 MHz configuration clock. Keep JTAG signals (TCK, TMS, TDI, TDO) away from switching power nodes to prevent ISP programming failures.
When the EPC1441TC32 and the target FPGA share a JTAG chain, the PROM's TDO must connect to the FPGA's TDI and vice versa, in a daisy-chain topology defined by the BSDL file. Series termination of 33 ohm on TCK is recommended when the JTAG chain exceeds 50 mm or when more than two JTAG devices share the bus. nCS and nOE driven by the FPGA should be pulled high through 10 kohm resistors to VCC at the FPGA end of the trace to prevent floating-chip-select glitches during FPGA power-up ramp.
Because the EPC1441TC32 is OTP, a single bitstream-programming mistake is permanent - the device cannot be erased and reused. Always verify the .pof/.sof programming file with a Quartus II / Quartus Prime simulation against a hardware loopback before ISP programming the production PROM. Do not design the PCB with VCC transient excursions above 5.5 V - the EPC1441 lacks internal ESD protection and over-voltage events can permanently brick the OTP memory array. Finally, do not place the EPC1441 on the same I/O bank as a 1.8 V FPGA: the PROM is 3.3 V / 5.0 V only and level-translation buffers are required.
合规信息
RoHS/REACH status not explicitly stated in the indexed EPC1441TC32 datasheet text. The device predates Altera's RoHS transition and is widely considered lead-bearing; confirm with distributor or Altera/Intel FPGA before designing into a RoHS-only BOM. AEC-Q100 is not applicable - this is a commercial-grade configuration PROM, not an automotive-qualified IC.
