EPF81500AQC240-4 - FLEX 8000 FPGA, 16K Gates, 240-PQFP | Altera
MPN: EPF81500AQC240-4 ✗ Tapus ng BuhayEPF81500AQC240-4 Ulas
An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and I/O cells, all defined by SRAM configuration bits loaded at power-up. Within the programmable logic hierarchy, an FPGA sits above CPLDs (which use non-volatile EEPROM/flash configuration and have lower density) and below fixed-function ASICs (which offer higher density at the cost of no reconfigurability). FPGAs bridge prototyping and production: they deliver ASIC-class integration with mask-change-free design revisions, making them indispensable for telecom, industrial control, and DSP pipelines.
Key features include 1,296 logic cells, up to 16,000 usable gates, four phase-locked loop (PLL)-style clock networks via the FLEX 8000 row/column architecture, JTAG-based boundary-scan testing, MultiVolt I/O for mixed-voltage buses, and SRAM configuration that supports parallel EPROM, serial EEPROM (EPC1, EPC1064, EPC1213, EPC1441), or microcontroller loading. The -4 speed grade indicates a faster bin than the -3, -2, or -1 grades.
The FLEX 8000 architecture combines a fine-grained logic element (LE) array with continuous routing channels and a predictable delay model, which simplifies static timing closure. The device is built on a 0.42 µm five-layer metal CMOS process that integrates configuration SRAM, logic, and I/O on a single die, eliminating the need for external configuration logic beyond the boot EEPROM.
Typical applications for the EPF81500AQC240-4 include telecommunications line-card glue logic, industrial control and factory automation state machines, DSP preprocessing pipelines, legacy PCI bus bridges, and instrumentation front-ends. The wide 240-pin footprint provides ample I/O for parallel buses and SRAM/DRAM interfaces.
When designing with this part, engineers should select an EPC-series configuration device to match the FLEX 8000 serial/parallel boot protocol, leave guard bands around all 181 I/O pins to accommodate signal integrity on parallel buses, and confirm the -4 speed grade against downstream timing budgets (a -3 or -2 grade may suffice if 125 MHz is not required).
This page consolidates distributor pricing, verified FLEX 8000 family specifications, drop-in same-package alternatives, and design considerations not found in the original datasheet alone.
Mga alternatibo na pwedeng ilagay na EPF81500AQC240-4 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok EPF81500AQC240-4 (parehas na form factor at footprint) — pagkakaiba sa Package, Configuration Method, Process Technology, Speed Grade, Operating Temperature.
EPF81500AQC240-3
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →EPF81500AQC240-2
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →EPF81500AQC240-2N
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →EPF81188AQC240-4
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →EPF81188AQC240-3
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →EPF81500AQC240-4 Mga Pinakamataas na Rating at Electrical Characteristics
| Family | FLEX 8000 |
| Usable Gates | 16,000 |
| Logic Elements / Cells | 1,296 |
| User I/O Pins | 181 |
| Packhaging | 240-BFQFP (Plastic Quad Flat Pack) |
| Supply Voltage (Core) | 5 V |
| I/O Voltage (MultiVolt) | 3.3 V or 5.0 V selectable |
| Process Technology | 0.42 µm CMOS SRAM |
| Logic Family | CMOS |
| Propagation Delay (typical) | 1.7 ns |
| LE-to-LE Delay (tpd) | 4.9 ns (16-bit decode path) |
| Maximum Frequency | 125 MHz |
| Configuration Method | SRAM, serial or parallel |
| Configuration Devices | EPC1, EPC1064, EPC1213, EPC1441 |
| Temperature na Operasyon | 0 °C to +70 °C (commercial) |
| Speed Grade | -4 |
Gabay sa Pin Configuration ng EPF81500AQC240-4 240-bfqfp (plastic quad flat pack)
Pin configuration para sa EPF81500AQC240-4 (240-bfqfp (plastic quad flat pack) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa EPF81500AQC240-4.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
EPF81500AQC240-4 ay nararapat para sa 6 aplikasyons: Telecommunications Line-Card Glue Logic, Industrial Control and Factory Automation, DSP Preprocessing Pipelines, Legacy PCI Bus Bridges and Adapters, Test and Measurement Instrumentation, Embedded System Glue Logic and Bus Arbitration.
Telecommunications Line-Card Glue Logic
The EPF81500AQC240-4 is well suited to telecommunications line-card glue logic where it bridges parallel TDM buses, performs protocol conversion between E1/T1 framers and backplane ASICs, and runs low-rate state machines. Its 181 user I/O pins expose ample parallel bus width for 16- or 32-bit datapaths without external muxes, while the -4 speed grade's 125 MHz capability comfortably accommodates 8.192 MHz E1 and 1.544 MHz T1 bitstreams with timing margin to spare. The MultiVolt I/O feature lets the FPGA sit between 5 V framer logic and 3.3 V backplane transceivers without level shifters. Configuration is held in an EPC1441 serial EPROM, simplifying in-system firmware updates via JTAG during factory provisioning and field maintenance cycles.
Inirekomenda
Industrial Control and Factory Automation
In industrial control cabinets, the EPF81500AQC240-4 implements deterministic PLC-style state machines, encoder/counter decoding, and motor-control sequencing. Its 1,296 logic cells support 10-20 concurrent finite-state machines plus PWM generation and quadrature decoding, while the 181 I/O drive 24 V optically-isolated field-side signals via on-board buffers. The 5 V core and MultiVolt I/O let the part sit next to legacy 5 V sensors and 3.3 V ARM Cortex MCUs without glue logic. Designers typically load configuration from an EPC1064 over the serial interface and use JTAG for in-circuit verification during machine commissioning. The 0 °C to +70 °C commercial temperature range covers most factory-floor enclosures.
Inirekomenda
DSP Preprocessing Pipelines
The EPF81500AQC240-4 serves as a front-end for DSP preprocessing in audio base stations, sonar signal conditioning, and instrumentation front-ends. Its 1,296 logic cells implement FIR filters, FFT pre-processing, sample-rate conversion, and gain control ahead of an external DSP or ASIC. The 125 MHz operation of the -4 speed grade allows parallel multiply-accumulate (MAC) at sample rates up to ~25 MHz with 16-bit coefficients, while the 16,000 usable gates handle several cascaded biquad stages. The wide 240-BFQFP footprint exposes enough I/O for parallel 16-bit ADC/DAC buses plus JTAG, status LEDs, and host interrupts on a single chip.
Inirekomenda
Legacy PCI Bus Bridges and Adapters
Legacy PCI add-in cards, particularly those designed in the late 1990s and early 2000s, use the EPF81500AQC240-4 as a 32-bit/33 MHz PCI target or master bridge to legacy ISA, VME, or proprietary backplanes. Its 1,296 cells and 16,000 usable gates implement the PCI configuration space, target/master state machines, and FIFO handshaking on a single device. The 240-BFQFP's 181 I/O pins drive the 32-bit PCI bus plus parity, interrupt, and GPIO signals with no external muxes. New PCI designs target the -4 speed grade; maintenance spares often drop in the -3 grade at lower cost.
Inirekomenda
Test and Measurement Instrumentation
Test and measurement instruments such as logic analysers, protocol exercisers, and modular data-acquisition systems use the EPF81500AQC240-4 for timing generation, pattern generation, and front-panel control. The 181 user I/O fan out to connectorised test points, while 1,296 cells implement 32-bit pattern sequencers and timing-edge generators. The -4 speed grade's 125 MHz capability drives 100 MHz pattern clocks with deterministic jitter from the FLEX 8000 PLL clock network. MultiVolt I/O lets the same board talk to 3.3 V CMOS logic analysers and 5 V TTL instrumentation simultaneously. JTAG boundary scan accelerates board-level test bring-up.
Inirekomenda
Embedded System Glue Logic and Bus Arbitration
The EPF81500AQC240-4 is a common glue-logic choice for embedded systems that integrate PowerPC, MIPS, or ARM processors with peripheral ASICs, SRAM, and Flash memories. Its 1,296 cells implement bus arbiters, address decoding, wait-state generators, and interrupt controllers on a single chip, replacing dozens of 74-series logic devices. The 240-BFQFP's 181 I/O accommodate 32-bit address/data buses plus chip-select, DMA, and interrupt lines. Designers typically boot from an EPC1441 serial EPROM that holds both the FLEX 8000 bitstream and a small bootloader for the host CPU. The MultiVolt I/O bridges 5 V processor buses and 3.3 V peripheral ASICs without external transceivers.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for EPF81500AQC240-4 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | EPF81500AQC240-3 | EPF81500AQC240-2 | EPF81500AQC240-2N | EPF81188AQC240-4 | EPF81188AQC240-3 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 240-BFQFP | 240-BFQFP - same | 240-BFQFP - same | 240-BFQFP - same | 240-BFQFP - same | 240-BFQFP - same |
| Usable Gates | 16,000 | 16,000 | 16,000 | 16,000 | 12,000 | 12,000 |
| Logic Cells | 1,296 | 1,296 | 1,296 | 1,296 | 936 | 936 |
| User I/O | 181 | 181 | 181 | 181 | 181 | 181 |
| Speed Grade | -4 (~125 MHz) | -3 | -2 | -2 (lead-free) | -4 | -3 |
| Core Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lifecycle | Obsolete (aftermarket only) | Obsolete (aftermarket only) | Obsolete (aftermarket only) | Obsolete (aftermarket only) | Obsolete (aftermarket only) | Obsolete (aftermarket only) |
Pangunahing mga Pagkakaiba
- Highest speed grade in the EPF81500A 240-BFQFP family (kumpara saEPF81500AQC240-3)
- Maximum logic density in the FLEX 8000 240-BFQFP package (kumpara saEPF81188AQC240-4)
- MultiVolt I/O for mixed-voltage system design (kumpara saEPF81500AQC240-2N)
Talaan ng Disenyo
Estimated: at VCCINT = 5.0 V with the FLEX 8000 EPF81500A running 100% utilisation at 125 MHz, ICC draws around 250-300 mA (approximately 1.25-1.5 W). Bulk-decouple VCCINT with a 100 µF tantalum plus 0.1 µF ceramic per supply pin cluster, and place 10 µF ceramics at each VCCIO bank. The MultiVolt I/O feature means separate VCCIO rails for 3.3 V and 5.0 V banks; do not float unused VCCIO pins. Power-on ramp should be monotonic within 1 ms to avoid configuration SRAM corruption.
The 240-BFQFP package has 0.5 mm pitch gull-wing leads that require careful PCB layout: use 0.15 mm/0.20 mm land patterns with NSMD (non-solder mask defined) pads for best solder joint reliability. Route all 181 user I/O on inner layers with 50 Ω controlled impedance, keep length matching within 25 mils for parallel buses, and place the configuration EPROM (EPC1/EPC1064/EPC1213/EPC1441) within 50 mm of the nCONFIG pin to keep the serial configuration path short and noise-free.
Do not confuse the EPF81500A (FLEX 8000, SRAM-based, 5 V) with the EPF81500 (original FLEX 8000, no 'A' suffix) - the 'A' revision uses the 0.42 µm process and MultiVolt I/O but otherwise shares the same datasheet. Also note that the EPF81188A is a logic-reduced member of the same family with only 12,000 usable gates; designs targeting the EPF81500A's 1,296 cells will not fit. Finally, the obsolete lifecycle status means new designs should consider Cyclone-series equivalents with appropriate PCB rework.
Impormasyon ng Pagsunod sa Kautusan
Original Altera FLEX 8000 family predates widespread RoHS compliance mandates; the '-2N' suffix variants indicate lead-free terminal finish. RoHS and REACH compliance status are not stated in the verified distributor data and are marked [DATA_NEEDED] in specs. AEC-Q100 is not applicable since this is a commercial-grade FPGA with 0-70 °C operating range.
