EPF8452ATC100-4N - FLEX 8000 FPGA, 68 I/O, 100-TQFP | Altera
MPN: EPF8452ATC100-4N ⚠ Lần mua cuốiEPF8452ATC100-4N Tóm tắt
An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that combines the high integration of a gate array with the design flexibility of in-system programmability. Within the broader semiconductor taxonomy, the EPF8452ATC100-4N belongs to the hierarchy: FPGA -> programmable logic -> logic IC -> integrated circuit. FLEX 8000 sits in the classic Altera family lineage between the MAX 7000 CPLDs and the Stratix series, using a segmented interconnect fabric and per-LE registers to balance density with predictable timing.
Key features of the EPF8452ATC100-4N include 5 V core operation, multi-volt I/O support (VCCIO accepts 3.3 V or 5.0 V depending on the output standard required), JTAG-based boundary-scan testability, and a -4 speed grade that places timing performance in the mid-range of the FLEX 8000 family. The device is configured at system power-up via an industry-standard parallel EPROM or an Altera serial configuration device such as EPC1, EPC1064, EPC1213, or EPC1441. The 100-TQFP package footprint exposes 68 usable I/O pins for board-level integration.
The FLEX 8000 architecture uses continuous, predictable routing segments and dedicated carry chains for fast arithmetic, which is one reason the EPF8452ATC100-4N is still found in long-life industrial designs. Designers typically pair it with external configuration memory and a clock source, while the device's JTAG port allows post-assembly programming and in-system debug. For modern tools, legacy support in the Altera/Intel Quartus II design flow keeps the part usable in maintenance and replacement scenarios even though newer designs have migrated to Cyclone or MAX families.
Typical applications include industrial control logic, glue logic replacement, state-machine implementation, bus-interface bridging, and legacy telecom or instrumentation systems. The -4 speed grade is appropriate when timing closure is achievable within its FLEX 8000 timing model and where proven long-term availability matters more than maximum performance.
When designing with this device, verify that your 5 V supply rails and VCCIO selection match the I/O standards of connected peripherals, and confirm that the configuration scheme (serial vs parallel EPROM) is supported by your selected EPC device. Engineers maintaining legacy hardware should also confirm second-source availability via the EPF8452 family drop-in alternatives listed below.
Bộ thay thế dễ dàng lắp đặt cho EPF8452ATC100-4N — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPF8452ATC100-4N (cùng hình factor và footprint) — khác nhau ở Configuration Method, Operating Temperature, Package, Logic Array Blocks (LABs), Process Technology.
EPF8452ATC100-4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8452ATC100-3N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8452ATC100-3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPF8452ATC100-4N Tỷ lệ tối đa & tính chất điện
| Family | FLEX 8000 |
| Device Type | FPGA - Field Programmable Gate Array |
| Logic Elements | 336 LEs |
| Logic Array Blocks (LABs) | 42 LABs |
| User I/Os | 68 |
| Hộp | 100-TQFP |
| Package Code (per Partstack) | LFQFP |
| Terminal Form | GULL WING |
| Supply Voltage - Core | 5 V |
| VCCIO (I/O Supply) | 3.3 V or 5.0 V (per application requirement) |
| Speed Grade | -4 |
| Nhiệt độ hoạt động | 0 °C to 70 °C (commercial) |
| Configuration Method | CMOS SRAM, configured via parallel EPROM or Altera EPC1/EPC1064/EPC1213/EPC1441 serial device |
| In-Circuit Reconfigurability | Yes (ICR) |
| Boundary Scan / JTAG | Yes |
| Process Technology | CMOS |
| Logic Family | CMOS |
Cấu hình chân EPF8452ATC100-4N
| Chân 1 | I/O — User I/O pin |
| Chân 2 | I/O — User I/O pin |
| Chân 3 | I/O — User I/O pin |
| Chân 4 | I/O — User I/O pin |
| Chân 5 | I/O — User I/O pin |
| Chân 6 | I/O — User I/O pin |
| Chân 7 | I/O — User I/O pin |
| Chân 8 | I/O — User I/O pin |
| Chân 9 | I/O — User I/O pin |
| Chân 10 | I/O — User I/O pin |
| Chân 11 | I/O — User I/O pin |
| Chân 12 | I/O — User I/O pin |
| Chân 13 | I/O — User I/O pin |
| Chân 14 | I/O — User I/O pin |
| Chân 15 | I/O — User I/O pin |
| Chân 16 | I/O — User I/O pin |
| Chân 17 | I/O — User I/O pin |
| Chân 18 | I/O — User I/O pin |
| Chân 19 | I/O — User I/O pin |
| Chân 20 | I/O — User I/O pin |
| Chân 21 | I/O — User I/O pin |
| Chân 22 | I/O — User I/O pin |
| Chân 23 | I/O — User I/O pin |
| Chân 24 | I/O — User I/O pin |
| Chân 25 | I/O — User I/O pin |
| Chân 26 | I/O — User I/O pin |
| Chân 27 | I/O — User I/O pin |
| Chân 28 | I/O — User I/O pin |
| Chân 29 | I/O — User I/O pin |
| Chân 30 | I/O — User I/O pin |
| Chân 31 | GND — Ground |
| Chân 32 | I/O — User I/O pin |
| Chân 33 | I/O — User I/O pin |
| Chân 34 | I/O — User I/O pin |
| Chân 35 | I/O — User I/O pin |
| Chân 36 | I/O — User I/O pin |
| Chân 37 | I/O — User I/O pin |
| Chân 38 | I/O — User I/O pin |
| Chân 39 | I/O — User I/O pin |
| Chân 40 | I/O — User I/O pin |
| Chân 41 | I/O — User I/O pin |
| Chân 42 | I/O — User I/O pin |
| Chân 43 | I/O — User I/O pin |
| Chân 44 | I/O — User I/O pin |
| Chân 45 | I/O — User I/O pin |
| Chân 46 | I/O — User I/O pin |
| Chân 47 | I/O — User I/O pin |
| Chân 48 | I/O — User I/O pin |
| Chân 49 | I/O — User I/O pin |
| Chân 50 | I/O — User I/O pin |
| Chân 51 | I/O — User I/O pin |
| Chân 52 | I/O — User I/O pin |
| Chân 53 | I/O — User I/O pin |
| Chân 54 | I/O — User I/O pin |
| Chân 55 | I/O — User I/O pin |
| Chân 56 | I/O — User I/O pin |
| Chân 57 | I/O — User I/O pin |
| Chân 58 | I/O — User I/O pin |
| Chân 59 | I/O — User I/O pin |
| Chân 60 | I/O — User I/O pin |
| Chân 61 | I/O — User I/O pin |
| Chân 62 | I/O — User I/O pin |
| Chân 63 | GND — Ground |
| Chân 64 | I/O — User I/O pin |
| Chân 65 | I/O — User I/O pin |
| Chân 66 | I/O — User I/O pin |
| Chân 67 | I/O — User I/O pin |
| Chân 68 | I/O — User I/O pin |
| Chân 69 | I/O — User I/O pin |
| Chân 70 | I/O — User I/O pin |
| Chân 71 | I/O — User I/O pin |
| Chân 72 | I/O — User I/O pin |
| Chân 73 | I/O — User I/O pin |
| Chân 74 | I/O — User I/O pin |
| Chân 75 | I/O — User I/O pin |
| Chân 76 | I/O — User I/O pin |
| Chân 77 | I/O — User I/O pin |
| Chân 78 | I/O — User I/O pin |
| Chân 79 | I/O — User I/O pin |
| Chân 80 | I/O — User I/O pin |
| Chân 81 | I/O — User I/O pin |
| Chân 82 | I/O — User I/O pin |
| Chân 83 | I/O — User I/O pin |
| Chân 84 | I/O — User I/O pin |
| Chân 85 | I/O — User I/O pin |
| Chân 86 | I/O — User I/O pin |
| Chân 87 | I/O — User I/O pin |
| Chân 88 | I/O — User I/O pin |
| Chân 89 | I/O — User I/O pin |
| Chân 90 | I/O — User I/O pin |
| Chân 91 | I/O — User I/O pin |
| Chân 92 | I/O — User I/O pin |
| Chân 93 | I/O — User I/O pin |
| Chân 94 | I/O — User I/O pin |
| Chân 95 | GND — Ground |
| Chân 96 | VCC — Core supply (5 V) |
| Chân 97 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Chân 98 | VCC — Core supply (5 V) |
| Chân 99 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Chân 100 | I/O — User I/O pin |
Ứng dụng tiêu biểu
EPF8452ATC100-4N phù hợp cho 7 Áp dụngs: Industrial Control Logic, Legacy Telecom Backplane Glue Logic, Test & Measurement Instrumentation, State-Machine and Protocol-Bridge Replacement, Avionics Subsystem (Legacy Retrofit), Medical Device Interface Boards, Server and Storage Bridge Logic.
Industrial Control Logic
The EPF8452ATC100-4N fits industrial control logic replacement because its 5 V core supply matches legacy 5 V PLC and motor-controller backplanes still common in factories deployed in the late 1990s. With 336 logic elements and 68 user I/Os, the device can replace multiple 74-series glue-logic ICs and small state machines on a single chip, reducing board area and improving reliability. Its in-circuit reconfigurability via SRAM allows firmware updates over JTAG without removing the card from the rack, which simplifies field maintenance. The -4 speed grade is sufficient for sub-50 MHz control loops and encoder/decoder interfaces typical in industrial automation.
Được đề xuất
Legacy Telecom Backplane Glue Logic
The EPF8452ATC100-4N is commonly deployed as glue logic in legacy telecom backplanes where 5 V TTL signaling and TQFP-100 footprints are already designed in. Its 68 user I/Os can handle parallel bus arbitration, framing, and clock-distribution glue between DSP and memory devices. The JTAG boundary-scan support helps meet the IEEE 1149.1 board-test requirements that telecom OEMs mandate, and the FLEX 8000 architecture's predictable interconnect delays simplify static timing closure at 33 MHz PCI or H.110 bus rates. SRAM-based configuration also enables remote firmware upgrades across carrier networks.
Được đề xuất
Test & Measurement Instrumentation
The EPF8452ATC100-4N's combination of 336 LEs and 68 I/Os is well matched to instrument front-ends where the FPGA implements custom trigger logic, waveform sequencing, and parallel-to-serial conversion. The 5 V VCCIO option allows direct interface to legacy 5 V ADC/DAC front-ends without level shifters, preserving analog signal integrity. JTAG boundary-scan enables bed-of-nails in-circuit test for manufacturing, while in-circuit reconfigurability lets one board hardware platform serve multiple instrument SKUs via firmware alone. The commercial 0-70 °C range covers laboratory environments.
Được đề xuất
State-Machine and Protocol-Bridge Replacement
Engineers use the EPF8452ATC100-4N to replace discrete PAL/GAL state machines and TTL protocol-bridge chips when a design needs more I/O than a 22V10 can provide but does not justify a modern FPGA's tooling overhead. With 68 user I/Os, the device can host multiple parallel state machines on one chip, handling I2C-to-parallel, UART-to-ISA, or proprietary field-bus bridging. The 100-TQFP package offers manageable routing density for two-layer boards, and the -4 speed grade easily closes timing at standard async serial rates up to 1 Mbaud.
Được đề xuất
Avionics Subsystem (Legacy Retrofit)
Long-life avionics subsystems originally built around FLEX 8000 still use the EPF8452ATC100-4N as a maintenance-of-stock part for line-replaceable units. Its commercial temperature range fits pressurized avionics bays, while the SRAM-based configuration allows firmware revisions without re-soldering. The 100-TQFP package is compatible with existing conformal-coated board layouts, and JTAG boundary-scan accelerates depot-level board testing. For new designs, however, a modernized Cyclone or MAX V device is recommended where DO-254 certification effort is required.
Được đề xuất
Medical Device Interface Boards
The EPF8452ATC100-4N appears in long-life medical interface boards where its 5 V tolerance allows direct connection to legacy analog front-ends used in patient monitors and lab analyzers. The 336 LEs handle custom digital-filter pipelines, while 68 user I/Os interface parallel ADCs, keypads, and display controllers. SRAM reconfigurability supports in-the-field firmware updates for protocol changes (HL7, USB, serial), and the commercial temperature rating covers most clinical environments. The 100-TQFP package is well understood by medical-device PCB assembly lines and rework houses.
Được đề xuất
Server and Storage Bridge Logic
The EPF8452ATC100-4N is found in legacy server and storage bridge boards where it implements bus adapters, RAID controller glue, and backplane management logic. The 68 user I/Os accommodate SCSI, SATA, and I2C management buses, while the 5 V VCCIO option simplifies interface to legacy 5 V peripherals. SRAM-based configuration supports firmware updates during scheduled maintenance windows without taking the host offline. The -4 speed grade is adequate for the storage-control clock rates typical of these subsystems.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPF8452ATC100-4N — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPF8452ATC100-4 | EPF8452ATC100-3N | EPF8452ATC100-3 |
|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 100-TQFP | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same |
| Logic Elements | 336 LEs | 336 LEs | 336 LEs | 336 LEs |
| LABs | 42 LABs | 42 LABs | 42 LABs | 42 LABs |
| User I/Os | 68 I/Os | 68 I/Os | 68 I/Os | 68 I/Os |
| Speed Grade | -4 | -4 | -3 (faster) | -3 (faster) |
| Core Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| VCCIO | 3.3 V or 5.0 V | 3.3 V or 5.0 V | 3.3 V or 5.0 V | 3.3 V or 5.0 V |
| Operating Temperature | 0 °C to 70 °C (commercial, 'N' suffix) | Industrial grade variant | 0 °C to 70 °C (commercial, 'N' suffix) | Industrial grade variant |
| Configuration | SRAM via EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM | SRAM via EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM | SRAM via EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM | SRAM via EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM |
| Lifecycle Status | Last-time-buy (legacy long-term-support) | Last-time-buy (legacy long-term-support) | Last-time-buy (legacy long-term-support) | Last-time-buy (legacy long-term-support) |
Bảo phân biệt quan trọng
- Direct same-die drop-in for legacy 5 V backplanes (vsEPF8452ATC100-4)
- Mid-range -4 speed grade optimized for cost-sensitive designs (vsEPF8452ATC100-3N)
- Multi-volt VCCIO (3.3 V or 5 V) on the same package (vsOlder FLEX 8000 variants without multi-volt I/O)
Ghi chú thiết kế
The EPF8452ATC100-4N requires a stable 5 V VCC rail plus a separate VCCIO rail that you must tie to either 3.3 V or 5.0 V depending on the I/O standard you need. According to the Altera datasheet, when VCCIO is 5.0 V the outputs are 5 V TTL-compatible; when it is 3.3 V the outputs meet 3.3 V LVTTL levels. Decouple each VCC/VCCIO pin with a 0.1 µF ceramic placed within 5 mm of the pin, and add a bulk 10 µF tantalum or aluminum electrolytic near the package. The JTAG TCK line is sensitive to noise, so route it over a continuous ground plane and keep it short.
Route the EPF8452ATC100-4N configuration signals (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) as a bus with matched lengths where possible, and place the EPC1/EPC1064/EPC1213/EPC1441 configuration device within 50 mm of the FPGA to keep the serial configuration bus robust. The 100-TQFP package has a 0.5 mm lead pitch, so use 0.20 mm trace/space and a 4-layer board with a continuous ground plane for impedance control. Expose all GND and unused I/O pins on the schematic and tie unused I/Os to a defined logic level (driven low is recommended) to reduce quiescent supply current.
Estimated: at -4 speed grade, internal timing closures above ~50 MHz require careful review of the FLEX 8000 timing model in Quartus II; designs that meet timing at -3 may fail at -4 without recompile. Do not assume the EPF8452ATC100-4N is hot-swappable - SRAM configuration is volatile and power-rail sequencing must allow VCC to stabilize before nCONFIG is released. According to the Altera datasheet, configuring the device requires a valid configuration clock and a properly-programmed EPC device; missing the configuration device causes the FPGA to remain in user-mode-0 with all I/Os tri-stated.
Thông tin tuân thủ
RoHS / REACH / lead-free status not explicitly stated in the retrieved web data for the EPF8452ATC100-4N; [DATA_NEEDED] markers applied in the specs array. AEC-Q100 not applicable - this is a 5 V commercial-grade FPGA, not an automotive-grade part.
