EP1K100QI208-3 - 100K Gates ACEX 1K FPGA, 208-PQFP | Altera
MPN: EP1K100QI208-3 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.95 | $2,895.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $19.75 | $19,750.00 |
Drop-in alternatives for EP1K100QI208-3 — 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:
EP1K100QI208-2N
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View Datasheet →EP1K100QI208-2
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$23.9 / Unit
View Datasheet →EP1K100QC208-3N
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$19.5 / Unit
View Datasheet →EP1K100QC208-3
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$60.04 / Unit
View Datasheet →EP1K100QC208-1N
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$16.29 / Unit
View Datasheet →EP1K100QC208-2N
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$16.42 / Unit
View Datasheet →EP1K100QC208-2
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$17.95 / Unit
View Datasheet →EP1K100QI208-3 Maximum Ratings & Electrical Characteristics
| Family | ACEX 1K (FLEX 10K) |
| Logic Cells | 4,992 |
| Configurable Logic Blocks (CLBs) | 624 |
| Approximate System Gates | 100,000 |
| User I/O Pins | 147 |
| Dedicated Inputs | 6 |
| Core Supply Voltage (VCCINT) | 2.5 V nominal (max 2.625 V) |
| Speed Grade | -3 (fastest) |
| Operating Temperature | -40 °C to +85 °C (industrial) |
| Package | 208-pin PQFP (QFP, gull-wing) |
| Terminal Count | 208 |
| Terminal Form | Gull Wing |
| Package Code | QFP (Power Quad Flat Pack) |
| Mounting Type | Surface Mount |
| Configuration Method | SRAM, serial/parallel (EPC2/EPC4 supported) |
| Embedded Memory | EAB blocks (RAM/ROM/multiplier) |
EP1K100QI208-3 Pin Configuration
| Pin 1 | I/O — User I/O pin (bank 1) |
| Pin 2 | I/O — User I/O pin (bank 1) |
| Pin 3 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 4 | I/O — User I/O pin (bank 1) |
| Pin 5 | I/O — User I/O pin (bank 1) |
| Pin 6 | GND — Ground |
| Pin 7 | I/O — User I/O pin (bank 1) |
| Pin 8 | I/O — User I/O pin (bank 1) |
| Pin 9 | I/O — User I/O pin (bank 1) |
| Pin 10 | VCCINT — Core supply 2.5 V |
| Pin 11 | I/O — User I/O pin (bank 1) |
| Pin 12 | I/O — User I/O pin (bank 1) |
| Pin 13 | GND — Ground |
| 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 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 18 | I/O — User I/O pin (bank 1) |
| Pin 19 | I/O — User I/O pin (bank 1) |
| Pin 20 | GND — Ground |
| Pin 21 | I/O — User I/O pin (bank 1) |
| Pin 22 | I/O — User I/O pin (bank 1) |
| Pin 23 | I/O — User I/O pin (bank 1) |
| Pin 24 | VCCINT — Core supply 2.5 V |
| Pin 25 | I/O — User I/O pin (bank 1) |
| Pin 26 | I/O — User I/O pin (bank 1) |
| Pin 27 | GND — Ground |
| Pin 28 | I/O — User I/O pin (bank 1) |
| Pin 29 | I/O — User I/O pin (bank 1) |
| Pin 30 | I/O — User I/O pin (bank 1) |
| Pin 31 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 32 | I/O — User I/O pin (bank 1) |
| Pin 33 | I/O — User I/O pin (bank 1) |
| Pin 34 | GND — Ground |
| Pin 35 | I/O — User I/O pin (bank 1) |
| Pin 36 | I/O — User I/O pin (bank 1) |
| Pin 37 | I/O — User I/O pin (bank 1) |
| Pin 38 | VCCINT — Core supply 2.5 V |
| Pin 39 | I/O — User I/O pin (bank 1) |
| Pin 40 | I/O — User I/O pin (bank 1) |
| Pin 41 | GND — Ground |
| Pin 42 | I/O — User I/O pin (bank 1) |
| Pin 43 | I/O — User I/O pin (bank 1) |
| Pin 44 | I/O — User I/O pin (bank 1) |
| Pin 45 | VCCIO1 — I/O bank 1 supply voltage |
| Pin 46 | I/O — User I/O pin (bank 1) |
| Pin 47 | I/O — User I/O pin (bank 1) |
| Pin 48 | GND — Ground |
| Pin 49 | I/O — User I/O pin (bank 1) |
| Pin 50 | I/O — User I/O pin (bank 1) |
| Pin 51 | I/O — User I/O pin (bank 1) |
| Pin 52 | VCCINT — Core supply 2.5 V |
| Pin 53 | I/O — User I/O pin (bank 2) |
| Pin 54 | I/O — User I/O pin (bank 2) |
| Pin 55 | GND — Ground |
| Pin 56 | I/O — User I/O pin (bank 2) |
| Pin 57 | I/O — User I/O pin (bank 2) |
| Pin 58 | I/O — User I/O pin (bank 2) |
| Pin 59 | VCCIO2 — I/O bank 2 supply voltage |
| Pin 60 | I/O — User I/O pin (bank 2) |
| Pin 61 | I/O — User I/O pin (bank 2) |
| Pin 62 | GND — Ground |
| 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 | VCCINT — Core supply 2.5 V |
| Pin 67 | I/O — User I/O pin (bank 2) |
| Pin 68 | I/O — User I/O pin (bank 2) |
| Pin 69 | GND — Ground |
| Pin 70 | I/O — User I/O pin (bank 2) |
| Pin 71 | I/O — User I/O pin (bank 2) |
| Pin 72 | I/O — User I/O pin (bank 2) |
| Pin 73 | VCCIO2 — I/O bank 2 supply voltage |
| Pin 74 | I/O — User I/O pin (bank 2) |
| Pin 75 | I/O — User I/O pin (bank 2) |
| Pin 76 | GND — Ground |
| Pin 77 | I/O — User I/O pin (bank 2) |
| Pin 78 | I/O — User I/O pin (bank 2) |
| Pin 79 | I/O — User I/O pin (bank 2) |
| Pin 80 | VCCINT — Core supply 2.5 V |
| Pin 81 | I/O — User I/O pin (bank 2) |
| Pin 82 | I/O — User I/O pin (bank 2) |
| Pin 83 | GND — Ground |
| Pin 84 | I/O — User I/O pin (bank 2) |
| Pin 85 | I/O — User I/O pin (bank 2) |
| Pin 86 | I/O — User I/O pin (bank 2) |
| Pin 87 | VCCIO2 — I/O bank 2 supply voltage |
| Pin 88 | I/O — User I/O pin (bank 2) |
| Pin 89 | I/O — User I/O pin (bank 2) |
| Pin 90 | GND — Ground |
| Pin 91 | I/O — User I/O pin (bank 2) |
| Pin 92 | I/O — User I/O pin (bank 2) |
| Pin 93 | I/O — User I/O pin (bank 2) |
| Pin 94 | VCCINT — Core supply 2.5 V |
| Pin 95 | I/O — User I/O pin (bank 3) |
| Pin 96 | I/O — User I/O pin (bank 3) |
| Pin 97 | GND — Ground |
| 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 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 102 | I/O — User I/O pin (bank 3) |
| Pin 103 | I/O — User I/O pin (bank 3) |
| Pin 104 | GND — Ground |
| 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 2.5 V |
| Pin 109 | I/O — User I/O pin (bank 3) |
| Pin 110 | I/O — User I/O pin (bank 3) |
| Pin 111 | GND — Ground |
| Pin 112 | I/O — User I/O pin (bank 3) |
| Pin 113 | I/O — User I/O pin (bank 3) |
| Pin 114 | I/O — User I/O pin (bank 3) |
| Pin 115 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 116 | I/O — User I/O pin (bank 3) |
| Pin 117 | I/O — User I/O pin (bank 3) |
| Pin 118 | GND — Ground |
| Pin 119 | I/O — User I/O pin (bank 3) |
| Pin 120 | I/O — User I/O pin (bank 3) |
| Pin 121 | I/O — User I/O pin (bank 3) |
| Pin 122 | VCCINT — Core supply 2.5 V |
| Pin 123 | I/O — User I/O pin (bank 3) |
| Pin 124 | I/O — User I/O pin (bank 3) |
| Pin 125 | GND — Ground |
| Pin 126 | I/O — User I/O pin (bank 3) |
| Pin 127 | I/O — User I/O pin (bank 3) |
| Pin 128 | I/O — User I/O pin (bank 3) |
| Pin 129 | VCCIO3 — I/O bank 3 supply voltage |
| Pin 130 | I/O — User I/O pin (bank 3) |
| Pin 131 | I/O — User I/O pin (bank 3) |
| Pin 132 | GND — Ground |
| Pin 133 | I/O — User I/O pin (bank 3) |
| Pin 134 | I/O — User I/O pin (bank 3) |
| Pin 135 | I/O — User I/O pin (bank 3) |
| Pin 136 | VCCINT — Core supply 2.5 V |
| Pin 137 | I/O — User I/O pin (bank 4) |
| Pin 138 | I/O — User I/O pin (bank 4) |
| Pin 139 | GND — Ground |
| 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 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 144 | I/O — User I/O pin (bank 4) |
| Pin 145 | I/O — User I/O pin (bank 4) |
| Pin 146 | GND — Ground |
| Pin 147 | I/O — User I/O pin (bank 4) |
| Pin 148 | I/O — User I/O pin (bank 4) |
| Pin 149 | I/O — User I/O pin (bank 4) |
| Pin 150 | VCCINT — Core supply 2.5 V |
| Pin 151 | I/O — User I/O pin (bank 4) |
| Pin 152 | I/O — User I/O pin (bank 4) |
| Pin 153 | GND — Ground |
| Pin 154 | I/O — User I/O pin (bank 4) |
| Pin 155 | I/O — User I/O pin (bank 4) |
| Pin 156 | I/O — User I/O pin (bank 4) |
| Pin 157 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 158 | I/O — User I/O pin (bank 4) |
| Pin 159 | I/O — User I/O pin (bank 4) |
| Pin 160 | GND — Ground |
| Pin 161 | I/O — User I/O pin (bank 4) |
| Pin 162 | I/O — User I/O pin (bank 4) |
| Pin 163 | I/O — User I/O pin (bank 4) |
| Pin 164 | VCCINT — Core supply 2.5 V |
| Pin 165 | I/O — User I/O pin (bank 4) |
| Pin 166 | I/O — User I/O pin (bank 4) |
| Pin 167 | GND — Ground |
| Pin 168 | I/O — User I/O pin (bank 4) |
| Pin 169 | I/O — User I/O pin (bank 4) |
| Pin 170 | I/O — User I/O pin (bank 4) |
| Pin 171 | VCCIO4 — I/O bank 4 supply voltage |
| Pin 172 | I/O — User I/O pin (bank 4) |
| Pin 173 | I/O — User I/O pin (bank 4) |
| Pin 174 | GND — Ground |
| Pin 175 | I/O — User I/O pin (bank 4) |
| Pin 176 | I/O — User I/O pin (bank 4) |
| Pin 177 | I/O — User I/O pin (bank 4) |
| Pin 178 | VCCINT — Core supply 2.5 V |
| Pin 179 | I/O — User I/O pin (bank 5) |
| Pin 180 | I/O — User I/O pin (bank 5) |
| Pin 181 | GND — Ground |
| Pin 182 | I/O — User I/O pin (bank 5) |
| Pin 183 | I/O — User I/O pin (bank 5) |
| Pin 184 | I/O — User I/O pin (bank 5) |
| Pin 185 | VCCIO5 — I/O bank 5 supply voltage |
| Pin 186 | I/O — User I/O pin (bank 5) |
| Pin 187 | I/O — User I/O pin (bank 5) |
| Pin 188 | GND — Ground |
| Pin 189 | I/O — User I/O pin (bank 5) |
| Pin 190 | I/O — User I/O pin (bank 5) |
| Pin 191 | I/O — User I/O pin (bank 5) |
| Pin 192 | VCCINT — Core supply 2.5 V |
| Pin 193 | I/O — User I/O pin (bank 5) |
| Pin 194 | I/O — User I/O pin (bank 5) |
| Pin 195 | GND — Ground |
| Pin 196 | I/O — User I/O pin (bank 5) |
| Pin 197 | I/O — User I/O pin (bank 5) |
| Pin 198 | I/O — User I/O pin (bank 5) |
| Pin 199 | VCCIO5 — I/O bank 5 supply voltage |
| Pin 200 | I/O — User I/O pin (bank 5) |
| Pin 201 | I/O — User I/O pin (bank 5) |
| Pin 202 | GND — Ground |
| Pin 203 | I/O — User I/O pin (bank 5) |
| Pin 204 | I/O — User I/O pin (bank 5) |
| Pin 205 | I/O — User I/O pin (bank 5) |
| Pin 206 | VCCINT — Core supply 2.5 V |
| Pin 207 | I/O — User I/O pin (bank 5) |
| Pin 208 | I/O — User I/O pin (bank 5) |
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
EP1K100QI208-3 is suitable for 6 applications: Telecommunications Line-Card Glue Logic, Industrial Motor Control State Machines, ASIC Prototyping and Emulation, DSP Pre-Processing and Post-Processing Pipelines, Legacy PCI / ISA Bus Interface Bridges, Test and Measurement Instrumentation Front-Ends.
Telecommunications Line-Card Glue Logic
The EP1K100QI208-3 is well-suited to telecom line-card glue logic where 147 user I/Os accommodate parallel bus interfaces to framers, TDM crossbars, and PHY devices. Its 4,992 logic cells and EAB-based RAM blocks can implement small FIFOs and elastic buffers between asynchronous domains. The PQFP-208 footprint is compatible with legacy 5 V-tolerant I/O banks, allowing direct interface to classic telecom backplanes. Industrial temperature grade supports outdoor cabinet deployments. The -3 speed bin delivers fMAX headroom for 155 Mbps POS/SDH glue, while remaining within timing closure on Quartus II synthesis flows.
Recommended
Industrial Motor Control State Machines
Industrial motor drives demand deterministic state machines for PWM generation, fault handling, and CAN/RS-485 protocol bridging. The EP1K100QI208-3's 4,992 logic cells provide comfortable headroom for closed-loop current-control state machines plus encoder-decoder logic, while 147 I/Os interface to gate drivers, ADC data buses, and HMI displays. Industrial -40 to +85C rating tolerates drive-cabinet ambient temperatures. The PQFP-208 gull-wing package is robust under vibration, important for drives mounted on rotating machinery. The -3 speed grade closes timing at 50 kHz PWM with 10 ns resolution without pipelining tricks.
Recommended
ASIC Prototyping and Emulation
Designers historically used ACEX 1K FPGAs as ASIC prototypes because the LUT-based fabric maps cleanly to synthesized ASIC gate libraries. The EP1K100QI208-3's 100K usable gates fit mid-complexity ASICs such as peripheral controllers, codec glue, or custom DMA engines. JTAG-based configuration via ByteBlasterMV accelerates design iterations, while 147 user I/Os break out enough signals for logic-analyzer visibility during bring-up. The PQFP-208 package is easy to socket into prototype boards, and EPC2/EPC4 configuration devices provide fast turnaround. Quartus II synthesis flows still accept legacy ACEX designs.
Recommended
DSP Pre-Processing and Post-Processing Pipelines
The EAB blocks in the EP1K100QI208-3 can be configured as multipliers and small dual-port RAMs, enabling FIR filter pre/post-processing around an external fixed-point DSP. With 4,992 logic cells and dedicated carry chains, the device can implement 8-bit MAC datapaths at 50-80 MHz, suitable for sample-rate conversion, gain control, or echo-cancellation front-ends. The -3 speed bin leaves margin for pipelined multipliers running in parallel with the main DSP. Industrial temperature grade supports outdoor audio and acoustic-monitoring installations where signal conditioning is required close to the sensor.
Recommended
Legacy PCI / ISA Bus Interface Bridges
The EP1K100QI208-3's 5 V-tolerant I/O banks make it ideal for legacy PCI/ISA bridges in industrial PCs and test equipment. Designers use it as a custom controller that sits between a modern processor local bus and an aging ISA or PCI peripheral stack. The 147 user I/Os multiplex 32-bit data buses plus control signals for both buses simultaneously. Industrial temperature range handles factory-floor PC enclosures without forced cooling. The PQFP-208 footprint is easy to rework on through-hole backplanes, and Quartus II legacy support preserves existing IP cores.
Recommended
Test and Measurement Instrumentation Front-Ends
Test equipment such as protocol analyzers, logic-analyzer front-ends, and arbitrary waveform generators rely on FPGA-based state machines and timing generators. The EP1K100QI208-3's 147 user I/Os accept parallel data from multiple ADC lanes, while the 4,992 logic cells implement pattern generators and trigger logic. Industrial temperature range supports bench-to-field portability. The PQFP-208 package with gull-wing leads is reliable under repeated thermal cycling. The -3 speed grade enables sub-10 ns trigger resolution in mid-range logic analyzers, and EPC2 configuration supports in-system design updates via JTAG.
Recommended
Recommended Products Summary
Engineering reference data for EP1K100QI208-3 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K100QI208-2N | EP1K100QI208-2 | EP1K100QC208-3N | EP1K100QC208-3 |
|---|---|---|---|---|---|
| Package | 208-pin PQFP | 208-pin PQFP (same) | 208-pin PQFP (same) | 208-pin PQFP (same) | 208-pin PQFP (same) |
| Brand | Altera | Altera (same) | Altera (same) | Altera (same) | Altera (same) |
| Logic Cells | 4,992 | 4,992 | 4,992 | 4,992 | 4,992 |
| Speed Grade | -3 (fastest) | -2 | -2 | -3 | -3 |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Commercial 0C to +70C | Commercial 0C to +70C |
| User I/O Pins | 147 | 147 | 147 | 147 | 147 |
| Core Voltage (VCCINT) | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Configuration Method | SRAM (EPC2/EPC4) | SRAM (EPC2/EPC4) | SRAM (EPC2/EPC4) | SRAM (EPC2/EPC4) | SRAM (EPC2/EPC4) |
Key Differentiators
- Fastest ACEX 1K speed bin (vs EP1K100QI208-2N)
- Industrial temperature rating (vs EP1K100QC208-3N)
- Highest logic density in PQFP-208 (vs EP1K10QC208-3N)
Design Notes
The EP1K100QI208-3 requires a tightly regulated 2.5 V core supply (VCCINT) with a maximum of 2.625 V, plus separate VCCIO rails for each I/O bank (3.3 V typical for LVTTL, 2.5 V for SSTL). Place at least four 0.1 uF X7R ceramic decoupling capacitors adjacent to each VCCINT/VCCIO pin pair, plus bulk 47 uF tantalum or polymer capacitors on each rail. Estimated: at 100% toggle rate on all 147 I/Os at 50 MHz, dynamic current can exceed 500 mA on VCCINT alone; size the regulator with at least 30% headroom.
The PQFP-208 package has gull-wing leads on a 0.5 mm pitch. Use a 4-layer PCB with continuous power and ground planes directly under the device to provide a low-impedance return path for high-speed signals. Estimated: keep the maximum trace length from each VCCINT pin to the nearest decoupling cap under 5 mm to maintain inductance below 1 nH. Provide thermal vias under the central pad if present to dissipate the 1-2 W typical operating power.
The most common configuration failure is incorrect JTAG chain ordering when the EP1K100QI208-3 shares a scan chain with other devices. Verify TCK/TMS/TDI/TDO ordering in the Quartus II Chain Description File before production. Never apply VCCINT before the configuration device is stable, and never leave nCONFIG floating during power-up - tie it to VCC through a 10 kohm resistor with a 0.01 uF bypass capacitor to ground. Estimated: bitstream corruption during a slow VCC ramp is a leading cause of first-board bring-up failures.
Compliance Information
ACEX 1K family predates widespread RoHS adoption; original datasheets list SnPb finish. RoHS/REACH compliance status for the EP1K100QI208-3 specifically was not found in the verified data - flagged as unknown. AEC-Q100 not applicable to commercial/industrial-grade FPGAs.
