EPF81188ARC240-6 - FLEX 8000 FPGA, 1008 LE, 240-PQFP | Altera
MPN: EPF81188ARC240-6 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.4 | $164.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $11.2 | $5,600.00 |
| 1,000 | $9.75 | $9,750.00 |
Drop-in alternatives for EPF81188ARC240-6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPF81188ARC240-5
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View Datasheet →EPF81188ARC240-6 Maximum Ratings & Electrical Characteristics
| Manufacturer | Altera (Intel Programmable Solutions Group) |
| Series | FLEX 8000 |
| Device Type | SRAM-based FPGA (Loadable PLD) |
| Logic Elements (LEs) | 1008 |
| Flip-Flops | 1184 |
| Speed Grade | -6 |
| Package | 240-pin PQFP (RQFP-240) |
| Mounting Type | Surface Mount |
| Process Technology | CMOS, SRAM configuration |
| Configuration Memory | External (EPC2/EPC16 or MCU bitstream load) |
| Operating Temperature | -40C to +85C (industrial) |
| I/O Standard Support | 5V TTL-compatible (legacy FLEX 8000 family) |
EPF81188ARC240-6 Pin Configuration
| Pin 1 | I/O — User I/O pin (bank-dependent voltage reference) |
| Pin 60 | I/O — User I/O pin |
| Pin 61 | I/O — User I/O pin |
| Pin 119 | GND — Ground reference |
| Pin 120 | I/O — User I/O pin |
| Pin 121 | I/O — User I/O pin |
| Pin 179 | VCCIO — I/O bank supply voltage |
| Pin 180 | I/O — User I/O pin |
| Pin 181 | I/O — User I/O pin |
| Pin 230 | TCK — JTAG test clock |
| Pin 231 | TMS — JTAG test mode select |
| Pin 232 | TDI — JTAG test data in |
| Pin 233 | TDO — JTAG test data out |
| Pin 234 | nCONFIG — Configuration control (active low) |
| Pin 235 | nSTATUS — Configuration status (active low) |
| Pin 236 | DCLK — Configuration clock input |
| Pin 237 | DATA0 — Configuration data input (bitstream) |
| Pin 238 | CONF_DONE — Configuration complete (open drain) |
| Pin 239 | VCCINT — Core supply voltage |
| Pin 240 | VCCINT — Core supply voltage |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPF81188ARC240-6 is suitable for 7 applications: Legacy Bus-Bridge and Glue Logic, Industrial Factory Automation Controllers, Telecom Line-Card Interface Aggregation, Retrofit of Legacy PLD Designs, Instrumentation Front-End Signal Routing, Educational FPGA Evaluation Platforms, Custom Peripheral Controllers in Embedded Systems.
Legacy Bus-Bridge and Glue Logic
The EPF81188ARC240-6's 1008 logic elements and 1184 flip-flops provide sufficient capacity to consolidate multiple discrete 74-series glue-logic functions into a single programmable device. Its 240-PQFP package preserves the legacy land pattern familiar to 1990s industrial bus designs, enabling drop-in modernization of ISA, VME, and PC/104 backplanes without PCB rework. SRAM-based in-system reconfigurability allows field firmware updates without removing the card from the chassis. Performance is well-matched to bus-cycle timing in the 25-50 MHz range, typical for industrial backplanes and legacy telecom line cards.
Recommended
Industrial Factory Automation Controllers
Factory automation controllers benefit from the EPF81188ARC240-6's -40C to +85C industrial temperature range and 5V-tolerant I/O, which directly interfaces with 5V sensors, opto-couplers, and 24V-referenced actuator drivers common on the shop floor. The 1008-LE capacity handles PWM generation, quadrature decoder logic, and multi-protocol serial bridging (RS-232/422/485) for PLC-style controllers. The 240-PQFP package offers robust gull-wing leads suitable for industrial vibration and thermal-cycling environments.
Recommended
Telecom Line-Card Interface Aggregation
Telecom line cards aggregate multiple E1/T1 framers, HDLC controllers, and timeslot-switching matrices into a single programmable device. The EPF81188ARC240-6's 1184 flip-flops comfortably handle parallel timeslot routing at 2.048 MHz (E1) or 1.544 MHz (T1), while its 1008 LEs implement HDLC framing, CRC generation, and alarm-state machines. SRAM reconfigurability supports remote firmware updates over the management plane, critical for telecom equipment in unmanned central offices. The 240-PQFP package and 5V tolerance match legacy line-card form factors.
Recommended
Retrofit of Legacy PLD Designs
Designers maintaining legacy circuits built around older PLDs (PAL, GAL, XPLA3) can migrate to the EPF81188ARC240-6 on the same PCB footprint when the original 240-PQFP land pattern is retained. The FLEX 8000's SRAM configuration eliminates the UV-erase cycle of older windowed PLDs and supports ISP (in-system programming) via JTAG. This application is especially relevant for defense, aerospace, and process-control equipment with multi-decade service lives where PCB redesign is cost-prohibitive.
Recommended
Instrumentation Front-End Signal Routing
Bench-top and rack-mount test instruments use FPGAs to multiplex ADC inputs, control gain stages, and route digital stimulus patterns. The EPF81188ARC240-6's 1008-LE capacity handles 16-to-32 channel analog-input switching matrices and pattern-generator sequencers at sample rates up to 50 MHz. The 240-PQFP package offers generous ground and power pins for the low-noise analog sections typical of instrumentation, and 5V I/O simplifies interface to legacy DACs and ADCs in ATE systems.
Recommended
Educational FPGA Evaluation Platforms
Universities and training centers that built curricula around FLEX 8000 in the late 1990s continue to use the EPF81188ARC240-6 in legacy training boards because it illustrates SRAM-FPGA fundamentals (external configuration, JTAG, volatile bitstream) without the on-chip flash complexity of modern devices. The 240-PQFP package is large enough for students to probe signals with oscilloscope hooks on standard lab breadboards. Quartus legacy device support continues to compile FLEX 8000 designs for student labs.
Recommended
Custom Peripheral Controllers in Embedded Systems
Embedded CPU boards (x86, PowerPC, ARM SoM) frequently offload custom peripherals - GPIO expanders, PWM controllers, custom SPI/I2C slaves - to an FPGA companion. The EPF81188ARC240-6's 240-PQFP footprint and 1008 LEs fit comfortably on embedded SBCs alongside the main CPU, providing deterministic custom I/O without burdening the host processor. SRAM reconfigurability lets OEMs ship a single hardware SKU and field-customize peripheral mappings per customer order.
Recommended
Recommended Products Summary
Engineering reference data for EPF81188ARC240-6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF81188ARC240-5 | EPF81188ARC240-4 | EPF81188ARC240-3 | EPF81188AQC240-4 | EPF81188AQC240-3 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 240-PQFP (RQFP-240) | 240-PQFP (RQFP-240) - same | 240-PQFP (RQFP-240) - same | 240-PQFP (RQFP-240) - same | 240-PQFP (RQFP-240) - same | 240-PQFP (RQFP-240) - same |
| Speed Grade | -6 | -5 (faster) | -4 (faster) | -3 (faster) | -4 (faster) | -3 (faster) |
| Logic Elements | 1008 | 1008 | 1008 | 1008 | 1008 | 1008 |
| Flip-Flops | 1184 | 1184 | 1184 | 1184 | 1184 | 1184 |
| Configuration Memory | External (EPC2/EPC16) | External (EPC2/EPC16) | External (EPC2/EPC16) | External (EPC2/EPC16) | External (EPC2/EPC16) | External (EPC2/EPC16) |
| Lifecycle Status | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) | Obsolete (EOL) |
| Typical Distributor Price (qty 100, as of 2026-09-12) | $13.95 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Same-die speed grade flexibility across the EPF81188ARC240-x family (vs EPF81188ARC240-4)
- 240-PQFP package preserves legacy PCB land patterns (vs EPF81188AQC240-4)
- FLEX 8000 family offers the simplest SRAM-FPGA teaching model (vs MAX II CPLD (EPM240T100))
Design Notes
Estimated: at typical FLEX 8000 core VCC of 5.0V with 1008 LEs switching at 33 MHz, average core current draw is approximately 50-100 mA. Designers should provide a low-noise LDO (e.g., 1A-rated TPS7A4701 family) for VCCINT and a separate ferrite-filtered supply for VCCIO banks to prevent simultaneous-switching noise from coupling back into the analog sections of mixed-signal designs. Decoupling: 0.1 uF X7R per VCC pin group plus 10-47 uF bulk at the supply entry point is standard for FLEX 8000 designs.
The 240-PQFP package has 0.5 mm pitch leads; PCB land pattern must follow IPC-7351 PQFP-240 guidelines with at least 6-8 mil trace-and-space capability. Use via-in-pad or microvia fan-out for inner-row power and ground leads to maintain a continuous ground plane under the device. Keep JTAG and configuration traces (TCK/TMS/TDI/TDO, nCONFIG/nSTATUS/DCLK/DATA0/CONF_DONE) short and parallel-routed with ground shielding to avoid configuration bitstream corruption during ISP.
Common pitfalls with FLEX 8000 designs: (1) Forgetting the external configuration EPROM - FLEX 8000 SRAM cells lose configuration on every power-down and require EPC2/EPC16 or a microcontroller bitstream loader. (2) Confusing the ARC and AQC package suffixes - both share the 240-PQFP land pattern but have different plastic compositions and MSL ratings; verify moisture-sensitivity handling matches your assembly process. (3) Selecting a faster speed grade (-3, -4) for new designs is fine, but using a slower grade (-6) when the original design used -4 will fail timing closure - check the original MPN's speed grade before substituting.
Place the external configuration EPROM (EPC2 or EPC16) within 2 inches of the EPF81188ARC240-6's DCLK and DATA0 pins to minimize skew. Route configuration traces as a 50-ohm controlled-impedance bundle with ground-guard traces on each side. Avoid routing clock or high-speed I/O traces parallel to the configuration bus; crosstalk on DATA0 can corrupt the bitstream and trigger a CONF_DONE failure. Add a 1 kohm pull-up on nCONFIG and a 10 kohm pull-up on nSTATUS per Altera reference designs.
Compliance Information
EPF81188ARC240-6 is an obsolete Altera FLEX 8000 FPGA manufactured in the late 1990s-early 2000s. Compliance status for RoHS, REACH, lead-free, halogen-free, and conflict minerals is not stated in the verified distributor datasheets retrieved 2026-09-12; consult the lot-specific manufacturer documentation or your distributor for the compliance status of the inventory you are procuring.
