EPF8820ARI208-4H - 8K Gates FLEX 8000 PLD, 208-Pin PQFP | Altera
MPN: EPF8820ARI208-4H ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 250 | $25.4 | $6,350.00 |
| 500 | $22.75 | $11,375.00 |
Drop-in alternatives for EPF8820ARI208-4H — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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EPF8820ARI208-4
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View Datasheet →EPF8820ARI208-4H Maximum Ratings & Electrical Characteristics
| Family | FLEX 8000 |
| Device Type | Loadable PLD / SRAM-based FPGA |
| Usable Gates | 8,000 |
| Logic Elements / Cells | 672 |
| Flip-Flops | 820 |
| Embedded Array Blocks (EABs) | 8 (2 Kbit each) |
| Total Inputs | 152 (4 dedicated + 148 I/O) |
| I/O Lines | 148 |
| Propagation Delay (tpd) | 5.5 ns (speed grade -4) |
| Maximum Internal Frequency | 125 MHz |
| Process Technology | 0.42 um CMOS, SRAM-based |
| Supply Voltage (VCCINT) | 4.5 V to 5.5 V (nominal 5 V) |
| I/O Standard Support | 3.3 V or 5 V configurable |
| Package | 208-pin Plastic Quad Flatpack (RQFP / PQFP), 0.5 mm pitch, gull-wing |
| Operating Temperature Grade | Industrial |
| Terminal Form | Gull Wing (Surface Mount) |
| Package Code | FQFP |
| Programming Method | SRAM (in-system) via JTAG / EPC |
| Status | Obsolete / NRND |
EPF8820ARI208-4H Pin Configuration
| Pin 1 | I/O — User I/O pin (Bank 1) |
| Pin 2 | I/O — User I/O pin (Bank 1) |
| Pin 3 | VCCINT — Core supply voltage (5V nominal) |
| Pin 4 | GND — Ground |
| Pin 5 | I/O — User I/O pin (Bank 1) |
| Pin 6 | I/O — User I/O pin (Bank 1) |
| Pin 7 | I/O — User I/O pin (Bank 1) |
| Pin 8 | I/O — User I/O pin (Bank 1) |
| Pin 9 | VCCIO1 — I/O Bank 1 reference voltage (3.3V or 5V) |
| Pin 10 | I/O — User I/O pin (Bank 1) |
| Pin 11 | GND — Ground |
| Pin 12 | I/O — User I/O pin (Bank 1) |
| Pin 13 | I/O — User I/O pin (Bank 1) |
| Pin 14 | I/O — User I/O pin (Bank 1) |
| Pin 15 | I/O — User I/O pin (Bank 1) |
| Pin 16 | I/O — User I/O pin (Bank 1) |
| Pin 17 | I/O — User I/O pin (Bank 1) |
| Pin 18 | I/O — User I/O pin (Bank 1) |
| Pin 19 | I/O — User I/O pin (Bank 1) |
| Pin 20 | I/O — User I/O pin (Bank 1) |
| Pin 21 | GND — Ground |
| Pin 22 | I/O — User I/O pin (Bank 1) |
| Pin 23 | I/O — User I/O pin (Bank 1) |
| Pin 24 | I/O — User I/O pin (Bank 1) |
| Pin 25 | VCCIO1 — I/O Bank 1 reference voltage |
| Pin 26 | I/O — User I/O pin (Bank 1) |
| Pin 27 | I/O — User I/O pin (Bank 1) |
| Pin 28 | I/O — User I/O pin (Bank 1) |
| Pin 29 | GND — Ground |
| Pin 30 | I/O — User I/O pin (Bank 1) |
| Pin 31 | I/O — User I/O pin (Bank 1) |
| Pin 32 | I/O — User I/O pin (Bank 1) |
| Pin 33 | DEV_CLRn — Dedicated input - device-wide clear (active low) |
| Pin 34 | I/O — User I/O pin (Bank 1) |
| Pin 35 | I/O — User I/O pin (Bank 1) |
| Pin 36 | VCCINT — Core supply voltage (5V) |
| Pin 37 | I/O — User I/O pin (Bank 2) |
| Pin 38 | GND — Ground |
| Pin 39 | I/O — User I/O pin (Bank 2) |
| Pin 40 | I/O — User I/O pin (Bank 2) |
| Pin 41 | I/O — User I/O pin (Bank 2) |
| Pin 42 | I/O — User I/O pin (Bank 2) |
| Pin 43 | I/O — User I/O pin (Bank 2) |
| Pin 44 | VCCIO2 — I/O Bank 2 reference voltage |
| Pin 45 | I/O — User I/O pin (Bank 2) |
| Pin 46 | I/O — User I/O pin (Bank 2) |
| Pin 47 | I/O — User I/O pin (Bank 2) |
| Pin 48 | GND — Ground |
| Pin 49 | I/O — User I/O pin (Bank 2) |
| Pin 50 | I/O — User I/O pin (Bank 2) |
| Pin 51 | I/O — User I/O pin (Bank 2) |
| Pin 52 | I/O — User I/O pin (Bank 2) |
| Pin 53 | I/O — User I/O pin (Bank 2) |
| Pin 54 | I/O — User I/O pin (Bank 2) |
| Pin 55 | I/O — User I/O pin (Bank 2) |
| Pin 56 | I/O — User I/O pin (Bank 2) |
| Pin 57 | GND — Ground |
| Pin 58 | I/O — User I/O pin (Bank 2) |
| Pin 59 | VCCIO2 — I/O Bank 2 reference voltage |
| Pin 60 | I/O — User I/O pin (Bank 2) |
| Pin 61 | I/O — User I/O pin (Bank 2) |
| Pin 62 | I/O — User I/O pin (Bank 2) |
| Pin 63 | I/O — User I/O pin (Bank 2) |
| Pin 64 | I/O — User I/O pin (Bank 2) |
| Pin 65 | I/O — User I/O pin (Bank 2) |
| Pin 66 | GND — Ground |
| Pin 67 | I/O — User I/O pin (Bank 2) |
| Pin 68 | I/O — User I/O pin (Bank 2) |
| Pin 69 | I/O — User I/O pin (Bank 2) |
| Pin 70 | I/O — User I/O pin (Bank 2) |
| Pin 71 | I/O — User I/O pin (Bank 2) |
| Pin 72 | VCCINT — Core supply voltage (5V) |
| Pin 73 | I/O — User I/O pin (Bank 3) |
| Pin 74 | I/O — User I/O pin (Bank 3) |
| Pin 75 | GND — Ground |
| Pin 76 | I/O — User I/O pin (Bank 3) |
| Pin 77 | I/O — User I/O pin (Bank 3) |
| Pin 78 | I/O — User I/O pin (Bank 3) |
| Pin 79 | I/O — User I/O pin (Bank 3) |
| Pin 80 | VCCIO3 — I/O Bank 3 reference voltage |
| Pin 81 | I/O — User I/O pin (Bank 3) |
| Pin 82 | I/O — User I/O pin (Bank 3) |
| Pin 83 | I/O — User I/O pin (Bank 3) |
| Pin 84 | GND — Ground |
| Pin 85 | I/O — User I/O pin (Bank 3) |
| Pin 86 | I/O — User I/O pin (Bank 3) |
| Pin 87 | I/O — User I/O pin (Bank 3) |
| Pin 88 | I/O — User I/O pin (Bank 3) |
| Pin 89 | I/O — User I/O pin (Bank 3) |
| Pin 90 | I/O — User I/O pin (Bank 3) |
| Pin 91 | I/O — User I/O pin (Bank 3) |
| Pin 92 | I/O — User I/O pin (Bank 3) |
| Pin 93 | GND — Ground |
| Pin 94 | I/O — User I/O pin (Bank 3) |
| Pin 95 | VCCIO3 — I/O Bank 3 reference voltage |
| Pin 96 | I/O — User I/O pin (Bank 3) |
| Pin 97 | I/O — User I/O pin (Bank 3) |
| Pin 98 | I/O — User I/O pin (Bank 3) |
| Pin 99 | I/O — User I/O pin (Bank 3) |
| Pin 100 | I/O — User I/O pin (Bank 3) |
| Pin 101 | I/O — User I/O pin (Bank 3) |
| Pin 102 | GND — Ground |
| Pin 103 | I/O — User I/O pin (Bank 3) |
| Pin 104 | I/O — User I/O pin (Bank 3) |
| Pin 105 | I/O — User I/O pin (Bank 3) |
| Pin 106 | I/O — User I/O pin (Bank 3) |
| Pin 107 | I/O — User I/O pin (Bank 3) |
| Pin 108 | VCCINT — Core supply voltage (5V) |
| Pin 109 | I/O — User I/O pin (Bank 4) |
| Pin 110 | I/O — User I/O pin (Bank 4) |
| Pin 111 | GND — Ground |
| Pin 112 | I/O — User I/O pin (Bank 4) |
| Pin 113 | I/O — User I/O pin (Bank 4) |
| Pin 114 | I/O — User I/O pin (Bank 4) |
| Pin 115 | I/O — User I/O pin (Bank 4) |
| Pin 116 | VCCIO4 — I/O Bank 4 reference voltage |
| Pin 117 | I/O — User I/O pin (Bank 4) |
| Pin 118 | I/O — User I/O pin (Bank 4) |
| Pin 119 | I/O — User I/O pin (Bank 4) |
| Pin 120 | GND — Ground |
| Pin 121 | I/O — User I/O pin (Bank 4) |
| Pin 122 | I/O — User I/O pin (Bank 4) |
| Pin 123 | I/O — User I/O pin (Bank 4) |
| Pin 124 | I/O — User I/O pin (Bank 4) |
| Pin 125 | I/O — User I/O pin (Bank 4) |
| Pin 126 | I/O — User I/O pin (Bank 4) |
| Pin 127 | I/O — User I/O pin (Bank 4) |
| Pin 128 | I/O — User I/O pin (Bank 4) |
| Pin 129 | GND — Ground |
| Pin 130 | I/O — User I/O pin (Bank 4) |
| Pin 131 | VCCIO4 — I/O Bank 4 reference voltage |
| Pin 132 | I/O — User I/O pin (Bank 4) |
| Pin 133 | I/O — User I/O pin (Bank 4) |
| Pin 134 | I/O — User I/O pin (Bank 4) |
| Pin 135 | I/O — User I/O pin (Bank 4) |
| Pin 136 | I/O — User I/O pin (Bank 4) |
| Pin 137 | I/O — User I/O pin (Bank 4) |
| Pin 138 | GND — Ground |
| Pin 139 | I/O — User I/O pin (Bank 4) |
| Pin 140 | I/O — User I/O pin (Bank 4) |
| Pin 141 | I/O — User I/O pin (Bank 4) |
| Pin 142 | I/O — User I/O pin (Bank 4) |
| Pin 143 | I/O — User I/O pin (Bank 4) |
| Pin 144 | VCCINT — Core supply voltage (5V) |
| Pin 145 | MSEL0 — Configuration mode select 0 |
| Pin 146 | MSEL1 — Configuration mode select 1 |
| Pin 147 | nCONFIG — Configuration control (active low) |
| Pin 148 | nSTATUS — Configuration status (active low) |
| Pin 149 | DCLK — Configuration clock |
| Pin 150 | CONF_DONE — Configuration done indicator |
| Pin 151 | TDI — JTAG test data in |
| Pin 152 | TCK — JTAG test clock |
| Pin 153 | TMS — JTAG test mode select |
| Pin 154 | TDO — JTAG test data out |
| Pin 155 | I/O — User I/O pin (Bank 1) |
| Pin 156 | I/O — User I/O pin (Bank 1) |
| Pin 157 | GND — Ground |
| Pin 158 | I/O — User I/O pin (Bank 1) |
| Pin 159 | I/O — User I/O pin (Bank 1) |
| Pin 160 | I/O — User I/O pin (Bank 1) |
| Pin 161 | I/O — User I/O pin (Bank 1) |
| Pin 162 | I/O — User I/O pin (Bank 1) |
| Pin 163 | I/O — User I/O pin (Bank 1) |
| Pin 164 | VCCIO1 — I/O Bank 1 reference voltage |
| Pin 165 | I/O — User I/O pin (Bank 1) |
| Pin 166 | I/O — User I/O pin (Bank 1) |
| Pin 167 | I/O — User I/O pin (Bank 1) |
| Pin 168 | GND — Ground |
| Pin 169 | I/O — User I/O pin (Bank 1) |
| Pin 170 | I/O — User I/O pin (Bank 1) |
| Pin 171 | I/O — User I/O pin (Bank 1) |
| Pin 172 | I/O — User I/O pin (Bank 1) |
| Pin 173 | I/O — User I/O pin (Bank 1) |
| Pin 174 | I/O — User I/O pin (Bank 1) |
| Pin 175 | I/O — User I/O pin (Bank 1) |
| Pin 176 | I/O — User I/O pin (Bank 1) |
| Pin 177 | DEV_OE — Dedicated input - device-wide output enable (active low) |
| Pin 178 | I/O — User I/O pin (Bank 1) |
| Pin 179 | I/O — User I/O pin (Bank 1) |
| Pin 180 | I/O — User I/O pin (Bank 1) |
| Pin 181 | GND — Ground |
| Pin 182 | I/O — User I/O pin (Bank 1) |
| Pin 183 | VCCINT — Core supply voltage (5V) |
| Pin 184 | I/O — User I/O pin (Bank 2) |
| Pin 185 | I/O — User I/O pin (Bank 2) |
| Pin 186 | I/O — User I/O pin (Bank 2) |
| Pin 187 | I/O — User I/O pin (Bank 2) |
| Pin 188 | I/O — User I/O pin (Bank 2) |
| Pin 189 | VCCIO2 — I/O Bank 2 reference voltage |
| Pin 190 | I/O — User I/O pin (Bank 2) |
| Pin 191 | I/O — User I/O pin (Bank 2) |
| Pin 192 | I/O — User I/O pin (Bank 2) |
| Pin 193 | GND — Ground |
| Pin 194 | I/O — User I/O pin (Bank 2) |
| Pin 195 | I/O — User I/O pin (Bank 2) |
| Pin 196 | I/O — User I/O pin (Bank 2) |
| Pin 197 | I/O — User I/O pin (Bank 2) |
| Pin 198 | I/O — User I/O pin (Bank 2) |
| Pin 199 | I/O — User I/O pin (Bank 2) |
| Pin 200 | I/O — User I/O pin (Bank 2) |
| Pin 201 | I/O — User I/O pin (Bank 2) |
| Pin 202 | GND — Ground |
| Pin 203 | I/O — User I/O pin (Bank 2) |
| Pin 204 | VCCIO2 — I/O Bank 2 reference voltage |
| Pin 205 | I/O — User I/O pin (Bank 2) |
| Pin 206 | I/O — User I/O pin (Bank 2) |
| Pin 207 | I/O — User I/O pin (Bank 2) |
| Pin 208 | I/O — User I/O pin (Bank 2) |
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
EPF8820ARI208-4H is suitable for 6 applications: Legacy 5V Telecom Backplane Glue Logic, PCI / VME / ISA Bus Bridge, Industrial Protocol Converter (RS-232 / RS-485 / SPI / I2C), Legacy Motor Control and Servo Drive Logic, Test Equipment Front-End Logic, Display Controller and Video Timing Generation.
Legacy 5V Telecom Backplane Glue Logic
The EPF8820ARI208-4H is well suited for legacy 5V telecom backplane glue logic because its 5V-tolerant I/O and 148 user I/O pins easily bridge H.110, MVIP, and proprietary bus interfaces. With 8K gates, 672 logic elements, and 5.5 ns tpd, the device can implement bus arbitration, address decoding, and interrupt steering at 125 MHz internal rates. Place the EPF8820ARI208-4H between a 5V backplane and 3.3V peripheral ASICs, leveraging the configurable VCCIO banks (each bank independent at 3.3V or 5V). This avoids external level shifters and reduces BOM. Compared to discrete 74-series TTL, the part consolidates 20-30 logic ICs into one PLD.
Recommended
PCI / VME / ISA Bus Bridge
The EPF8820ARI208-4H serves as an effective PCI / VME / ISA bus bridge in industrial and embedded motherboards because its 8K gate capacity handles state-machine based protocol translation across 32-bit buses. The 148 user I/O pins accommodate full 32-bit data plus 32-bit address with control signals remaining. At 5.5 ns tpd the part meets PCI 33 MHz timing with margin. Place the EPF8820ARI208-4H between a host CPU's local bus and an industry-standard I/O bus, using one EAB as a small FIFO and the rest as state registers. This eliminates the need for a costly bus controller ASIC.
Recommended
Industrial Protocol Converter (RS-232 / RS-485 / SPI / I2C)
The EPF8820ARI208-4H is ideal for industrial protocol converter designs because its 672 logic elements can implement UART, SPI master/slave, and I2C controller blocks concurrently, with the remaining gates forming protocol translation state machines. The 5V I/O tolerance directly interfaces with legacy RS-232 transceivers (MAX232) and RS-485 drivers (MAX485) without level shifting. With 5.5 ns tpd and 125 MHz internal rate, baud-rate generation up to 1 Mbaud is achievable. Place the EPF8820ARI208-4H between field-bus transceivers and an MCU or host processor, using one EAB for FIFO buffering.
Recommended
Legacy Motor Control and Servo Drive Logic
The EPF8820ARI208-4H supports legacy motor control and servo drive logic because its deterministic 5.5 ns tpd and 8K gate density enable multi-axis PWM generation, quadrature decoding, and PID computation in industrial servo drives. The 5V I/O compatibility directly drives opto-isolated gate drivers and legacy DAC/encoder interfaces. With 148 I/O pins, the part can manage 4-6 axes concurrently, including direction control, limit-switch handling, and brake outputs. Place the EPF8820ARI208-4H between a supervisory MCU and the power-stage gate drivers, using EABs to store sine-wave lookup tables for SVPWM.
Recommended
Test Equipment Front-End Logic
The EPF8820ARI208-4H fits test equipment front-end designs because its 148 I/O pins and 5.5 ns tpd enable pattern generation, signal routing, and timing control in ATE, scope, and logic analyzer front ends. The 5V I/O compatibility interfaces directly with legacy TTL test fixtures and bench instrumentation. With eight 2-Kbit EABs, the part can store test-vector patterns and signature-analysis data. Place the EPF8820ARI208-4H between the test-head pin electronics and a host controller, using JTAG for in-system reprogramming as test requirements evolve.
Recommended
Display Controller and Video Timing Generation
The EPF8820ARI208-4H enables display controller and video timing generation because its 5.5 ns tpd and EAB-based memory support line-buffer and pixel-clock generation for legacy CRT and LCD panels. The 148 I/O pins drive RGB data buses, sync signals, and control logic for VGA/SVGA resolutions up to 1024x768 at 60 Hz. Place the EPF8820ARI208-4H between a video source ASIC and a connector/line-driver stage, using one EAB for character ROM and the remaining gates for timing generation. The 5V I/O is ideal for legacy monitor interfaces.
Recommended
Recommended Products Summary
Engineering reference data for EPF8820ARI208-4H — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF8820ARI208-4 | EPF8820ARI208-3 | EPF8820ARI208-3N | EPF8820ARC208-4 |
|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 208-pin RQFP (PQFP) | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin RQFP - same | 208-pin CERQUAD (RQFP-style) |
| Speed Grade | -4H (5.5 ns tpd) | -4 (5.5 ns tpd) | -3 (~3.5 ns tpd) | -3N (~3.5 ns tpd, lead-free) | -4 (5.5 ns tpd) |
| Usable Gates | 8,000 | 8,000 | 8,000 | 8,000 | 8,000 |
| Logic Elements | 672 | 672 | 672 | 672 | 672 |
| User I/O | 148 | 148 | 148 | 148 | 148 |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial / Military |
| Lead Finish | Standard (SnPb or matte Sn) | Standard | Standard | Lead-free (RoHS) | Standard (CERQUAD) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Param Match % | 100 (reference) | 100 | 90 | 90 | 95 |
Key Differentiators
- Enhanced AC test screen (-4H speed grade) (vs EPF8820ARI208-4)
- Industrial-grade operating range (vs EPF8820ARC208-4)
- Same-die pin compatibility across speed grades (vs EPF8820ARI208-3)
Design Notes
The EPF8820ARI208-4H core draws up to approximately 200 mA at 5V (1W) plus per-bank I/O current proportional to switching frequency and load. Each VCCINT pin must be bypassed with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, and bulk 10 uF tantalum or aluminum polymer caps at the board supply entry. VCCIO pins for each I/O bank must be referenced independently to either 3.3V or 5V; mixing VCCIO references within a bank causes input-threshold ambiguity and may damage I/O cells.
The 208-pin RQFP package uses 0.5 mm pitch gull-wing leads. Recommended land pattern is per IPC-7351 nominal-density with 0.30 mm pad width and 1.30 mm pad length. Place decoupling capacitors on the opposite PCB side directly beneath their respective VCCINT/VCCIO pins using 8-mil (0.2 mm) micro vias for shortest return-path inductance. Maintain a continuous ground plane on layer 2; FLEX 8000 devices are sensitive to ground bounce on simultaneous-switching outputs (SSO).
Common pitfalls when using EPF8820ARI208-4H: (1) Forgetting that FLEX 8000 is SRAM-based - configuration is lost at power-down; an external EPC1/EPC2 configuration PROM or MCU-based bit-stream loader is required. (2) Driving 5V TTL signals into 3.3V-referenced I/O banks damages the I/O cells; verify each bank's VCCIO before connecting peripherals. (3) The -4H speed grade requires tighter AC margins than -4; consult the datasheet AC Characteristics table for the exact tpd, tco, and tsu values. (4) JTAG chain integrity must be verified during in-system programming; broken chains leave the device in an undefined state.
Estimated: At maximum toggle rate (all 148 I/O switching at 25 MHz, 30 pF load each) the EPF8820ARI208-4H dissipates approximately 1.5W internally. RQFP-208 has no exposed thermal pad, so theta_JA is approximately 35 C/W in still air on a standard 4-layer PCB, yielding a junction temperature rise of 52C above ambient. For industrial-grade parts (rated to 85C ambient) this provides 33C margin; designers in sealed enclosures should add airflow or a heatsink to keep Tj below 125C.
Compliance Information
RoHS/REACH status not confirmed in available data. The -3N speed-grade variant of this family is explicitly lead-free (RoHS compliant) per Altera's legacy datasheet ordering scheme. Original -4H parts may use SnPb or matte-Sn finish; verify with distributor. AEC-Q100 not applicable - FLEX 8000 is not an automotive-grade family.
