EP1K50TI144-3N - 50K-Gate ACEX 1K FPGA, 102 I/O, 144-TQFP | Altera
MPN: EP1K50TI144-3N β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.95 | $2,895.00 |
| 500 | $23.4 | $11,700.00 |
| 1,000 | $19.8 | $19,800.00 |
Drop-in alternatives for EP1K50TI144-3N β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
EP1K50TI144-2N
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View Datasheet βEP1K50TI144-1X
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View Datasheet βEP1K50TC144-3N
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View Datasheet βEP1K30TI144-3N
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View Datasheet βEP1K50TI144-3
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View Datasheet βEP1K50TI144-3N Maximum Ratings & Electrical Characteristics
| Family | ACEX 1K (EP1K) |
| Series | EP1K50 |
| Logic Elements | 2,880 |
| Typical Gates | 50,000 |
| Embedded Array Blocks (EABs) | 40 (4 Kbit each) |
| Embedded Memory (EAB SRAM) | 40,960 bits |
| Maximum User I/O | 102 |
| Dedicated Inputs | 6 |
| Core Voltage (VCCINT) | 2.375 V to 2.625 V (nominal 2.5 V) |
| I/O Bank Voltage (VCCIO) | 2.375 V to 5.0 V (multiVolt I/O) |
| Speed Grade | -3 (fastest ACEX 1K grade) |
| Maximum Internal Frequency | 166.67 MHz (process node data) |
| Process Technology | 0.22 Β΅m CMOS, SRAM-based |
| Package | 144-pin TQFP (Industrial, Pb-free) |
| Operating Temperature | -40 Β°C to +85 Β°C (Industrial) |
| Mounting Type | Surface Mount |
| Configuration Interface | JTAG (IEEE 1149.1) + passive-serial |
| RoHS Status | Compliant (Pb-free terminal finish, "N" suffix) |
EP1K50TI144-3N Pin Configuration
| Pin 1 | I/O β User I/O pin (bank 1) |
| Pin 2 | I/O β User I/O pin (bank 1) |
| Pin 3 | I/O β User I/O pin (bank 1) |
| Pin 4 | I/O β User I/O pin (bank 1) |
| Pin 5 | I/O β User I/O pin (bank 1) |
| Pin 6 | I/O β User I/O pin (bank 1) |
| Pin 7 | VCCIO1 β I/O bank 1 supply (2.5V/3.3V/5V) |
| Pin 8 | I/O β User I/O pin (bank 1) |
| Pin 9 | I/O β User I/O pin (bank 1) |
| Pin 10 | I/O β User I/O pin (bank 1) |
| Pin 11 | GND β Ground |
| Pin 12 | I/O β User I/O pin (bank 1) |
| Pin 13 | I/O β User I/O pin (bank 1) |
| Pin 14 | I/O β User I/O pin (bank 1) |
| Pin 15 | I/O β User I/O pin (bank 1) |
| Pin 16 | I/O β User I/O pin (bank 1) |
| Pin 17 | I/O β User I/O pin (bank 2) |
| Pin 18 | I/O β User I/O pin (bank 2) |
| Pin 19 | I/O β User I/O pin (bank 2) |
| Pin 20 | I/O β User I/O pin (bank 2) |
| Pin 21 | GND β Ground |
| Pin 22 | I/O β User I/O pin (bank 2) |
| Pin 23 | I/O β User I/O pin (bank 2) |
| Pin 24 | I/O β User I/O pin (bank 2) |
| Pin 25 | I/O β User I/O pin (bank 2) |
| Pin 26 | I/O β User I/O pin (bank 2) |
| Pin 27 | I/O β User I/O pin (bank 2) |
| Pin 28 | VCCIO2 β I/O bank 2 supply |
| Pin 29 | I/O β User I/O pin (bank 2) |
| Pin 30 | I/O β User I/O pin (bank 2) |
| Pin 31 | I/O β User I/O pin (bank 2) |
| Pin 32 | I/O β User I/O pin (bank 2) |
| Pin 33 | GND β Ground |
| Pin 34 | I/O β User I/O pin (bank 3) |
| Pin 35 | I/O β User I/O pin (bank 3) |
| Pin 36 | I/O β User I/O pin (bank 3) |
| Pin 37 | I/O β User I/O pin (bank 3) |
| Pin 38 | I/O β User I/O pin (bank 3) |
| Pin 39 | I/O β User I/O pin (bank 3) |
| Pin 40 | VCCIO3 β I/O bank 3 supply |
| Pin 41 | I/O β User I/O pin (bank 3) |
| Pin 42 | I/O β User I/O pin (bank 3) |
| Pin 43 | CLK0 β Dedicated clock input 0 |
| Pin 44 | CLK1 β Dedicated clock input 1 |
| Pin 45 | I/O β User I/O pin (bank 3) |
| Pin 46 | I/O β User I/O pin (bank 3) |
| Pin 47 | GND β Ground |
| Pin 48 | I/O β User I/O pin (bank 3) |
| Pin 49 | I/O β User I/O pin (bank 4) |
| Pin 50 | I/O β User I/O pin (bank 4) |
| Pin 51 | I/O β User I/O pin (bank 4) |
| Pin 52 | I/O β User I/O pin (bank 4) |
| Pin 53 | I/O β User I/O pin (bank 4) |
| Pin 54 | I/O β User I/O pin (bank 4) |
| Pin 55 | VCCIO4 β I/O bank 4 supply |
| Pin 56 | I/O β User I/O pin (bank 4) |
| Pin 57 | I/O β User I/O pin (bank 4) |
| Pin 58 | I/O β User I/O pin (bank 4) |
| Pin 59 | I/O β User I/O pin (bank 4) |
| Pin 60 | I/O β User I/O pin (bank 4) |
| Pin 61 | GND β Ground |
| Pin 62 | I/O β User I/O pin (bank 4) |
| Pin 63 | I/O β User I/O pin (bank 4) |
| Pin 64 | I/O β User I/O pin (bank 4) |
| Pin 65 | I/O β User I/O pin (bank 4) |
| Pin 66 | I/O β User I/O pin (bank 4) |
| Pin 67 | I/O β User I/O pin (bank 4) |
| Pin 68 | I/O β User I/O pin (bank 4) |
| Pin 69 | I/O β User I/O pin (bank 4) |
| Pin 70 | I/O β User I/O pin (bank 4) |
| Pin 71 | GND β Ground |
| Pin 72 | I/O β User I/O pin (bank 4) |
| Pin 73 | I/O β User I/O pin (bank 4) |
| Pin 74 | VCCIO4 β I/O bank 4 supply |
| Pin 75 | I/O β User I/O pin (bank 4) |
| Pin 76 | I/O β User I/O pin (bank 4) |
| Pin 77 | I/O β User I/O pin (bank 4) |
| Pin 78 | I/O β User I/O pin (bank 4) |
| Pin 79 | I/O β User I/O pin (bank 4) |
| Pin 80 | GND β Ground |
| Pin 81 | I/O β User I/O pin (bank 4) |
| Pin 82 | I/O β User I/O pin (bank 4) |
| Pin 83 | I/O β User I/O pin (bank 4) |
| Pin 84 | I/O β User I/O pin (bank 4) |
| Pin 85 | I/O β User I/O pin (bank 4) |
| Pin 86 | I/O β User I/O pin (bank 4) |
| Pin 87 | I/O β User I/O pin (bank 4) |
| Pin 88 | I/O β User I/O pin (bank 4) |
| Pin 89 | GND β Ground |
| Pin 90 | I/O β User I/O pin (bank 3) |
| Pin 91 | I/O β User I/O pin (bank 3) |
| Pin 92 | I/O β User I/O pin (bank 3) |
| Pin 93 | I/O β User I/O pin (bank 3) |
| Pin 94 | I/O β User I/O pin (bank 3) |
| Pin 95 | I/O β User I/O pin (bank 3) |
| Pin 96 | VCCIO3 β I/O bank 3 supply |
| Pin 97 | I/O β User I/O pin (bank 3) |
| Pin 98 | I/O β User I/O pin (bank 3) |
| Pin 99 | I/O β User I/O pin (bank 3) |
| Pin 100 | I/O β User I/O pin (bank 3) |
| Pin 101 | I/O β User I/O pin (bank 3) |
| Pin 102 | GND β Ground |
| Pin 103 | I/O β User I/O pin (bank 3) |
| Pin 104 | I/O β User I/O pin (bank 3) |
| Pin 105 | I/O β User I/O pin (bank 3) |
| Pin 106 | I/O β User I/O pin (bank 3) |
| Pin 107 | I/O β User I/O pin (bank 3) |
| Pin 108 | I/O β User I/O pin (bank 3) |
| Pin 109 | I/O β User I/O pin (bank 3) |
| Pin 110 | VCCIO3 β I/O bank 3 supply |
| Pin 111 | I/O β User I/O pin (bank 3) |
| Pin 112 | I/O β User I/O pin (bank 3) |
| Pin 113 | I/O β User I/O pin (bank 3) |
| Pin 114 | I/O β User I/O pin (bank 3) |
| Pin 115 | GND β Ground |
| Pin 116 | I/O β User I/O pin (bank 2) |
| Pin 117 | I/O β User I/O pin (bank 2) |
| Pin 118 | I/O β User I/O pin (bank 2) |
| Pin 119 | VCCIO2 β I/O bank 2 supply |
| Pin 120 | I/O β User I/O pin (bank 2) |
| Pin 121 | I/O β User I/O pin (bank 2) |
| Pin 122 | I/O β User I/O pin (bank 2) |
| Pin 123 | I/O β User I/O pin (bank 2) |
| Pin 124 | I/O β User I/O pin (bank 2) |
| Pin 125 | I/O β User I/O pin (bank 2) |
| Pin 126 | I/O β User I/O pin (bank 2) |
| Pin 127 | GND β Ground |
| Pin 128 | I/O β User I/O pin (bank 2) |
| Pin 129 | I/O β User I/O pin (bank 2) |
| Pin 130 | I/O β User I/O pin (bank 2) |
| Pin 131 | I/O β User I/O pin (bank 2) |
| Pin 132 | I/O β User I/O pin (bank 2) |
| Pin 133 | I/O β User I/O pin (bank 1) |
| Pin 134 | I/O β User I/O pin (bank 1) |
| Pin 135 | I/O β User I/O pin (bank 1) |
| Pin 136 | VCCIO1 β I/O bank 1 supply |
| Pin 137 | I/O β User I/O pin (bank 1) |
| Pin 138 | I/O β User I/O pin (bank 1) |
| Pin 139 | I/O β User I/O pin (bank 1) |
| Pin 140 | I/O β User I/O pin (bank 1) |
| Pin 141 | I/O β User I/O pin (bank 1) |
| Pin 142 | I/O β User I/O pin (bank 1) |
| Pin 143 | GND β Ground |
| Pin 144 | I/O β User I/O pin (bank 1) |
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
EP1K50TI144-3N is suitable for 7 applications: Industrial Control Glue Logic, Telecom Line-Card Bus Interface, Legacy PCI/ISA Bridge Logic, Test & Measurement Instrumentation Front-End, DSP Pre-/Post-Processing Pipeline, Avionics & Military Bus Interface, Networking Backplane Aggregator.
Industrial Control Glue Logic
The EP1K50TI144-3N's 50K-gate capacity and 102 user I/O make it well-suited for industrial PLC and motor-controller glue logic that needs to bridge legacy 5 V peripherals with modern 3.3 V processors. The TQFP-144 industrial-temperature package (-40 Β°C to +85 Β°C) tolerates factory-floor environments, and the multiVolt I/O bank eliminates level-shifters when interfacing 5 V sensors and 3.3 V MCUs on the same board.
Recommended
Telecom Line-Card Bus Interface
ACEX 1K was extensively used in telecom line cards for bus-interface aggregation between TDM backplanes and ATM/Ethernet framers. The EP1K50TI144-3N's 2,880 LEs comfortably handle UTOPIA-2 / POS-PHY Level-2 glue logic, while its 40 EABs (40 Kbit) buffer small lookup tables for VLAN or HDLC encoding. The -3 speed grade closes timing above 100 MHz, sufficient for 155 Mbps UTOPIA interfaces without timing-violation risk.
Recommended
Legacy PCI/ISA Bridge Logic
Embedded PC/104 and CompactPCI boards historically used ACEX 1K to bridge PCI 33 MHz to ISA or local-bus peripherals. The EP1K50TI144-3N's 102 I/O and 50K-gate budget accommodate 32-bit multiplexed address/data plus 4 chip-select decoders and a DMA state machine, all in a single chip. The 2.5 V core plus 5 V-tolerant I/O matches PCI 5 V signalling directly with no external buffering.
Recommended
Test & Measurement Instrumentation Front-End
Digital-storage oscilloscopes and logic-analyser front-ends use ACEX 1K to implement trigger sequencers, channel-multiplexers, and time-interpolators. The EP1K50TI144-3N's EAB SRAM (40 Kbit) stores up to 1,000 32-bit trigger words, and its 102 I/O accept 32 logic-analyser channels plus 16 timing-reference inputs. The -3 grade sustains 166 MHz internal clock, fast enough for 200 Msps equivalent-time sampling sequencers.
Recommended
DSP Pre-/Post-Processing Pipeline
Cost-sensitive DSP pipelines (audio codecs, software-defined radio front-ends, video scalar/pre-filter) use ACEX 1K to host FIR filters, FFT pre/post-processors, and rate-converters. The EP1K50TI144-3N's 2,880 LEs sustain 32-tap FIRs at video rates, while its distributed-LUT RAM (per-LE) provides coefficient storage without consuming the EAB SRAM. The -3 speed grade supports distributed-arithmetic FFT cores at >100 MHz.
Recommended
Avionics & Military Bus Interface
Avionics LRUs (Line Replaceable Units) commonly implement MIL-STD-1553, ARINC 429, and discrete I/O conditioning in ACEX 1K. The EP1K50TI144-3N's industrial-temperature grade plus radiation-tolerant characteristics on the SRAM process make it suitable for benign-orbit and ground-vehicle applications. Its 50K-gate budget accommodates dual-redundant 1553 bus interfaces plus discrete I/O handling on a single FPGA.
Recommended
Networking Backplane Aggregator
Ethernet switches, DSLAMs, and SONET/SDH cross-connects use ACEX 1K to implement backplane serializers, MAC address lookup tables, and flow-control state machines. The EP1K50TI144-3N's 102 I/O supports a 32-bit UTOPIA-2 interface plus 16-bit GMII side-band plus 8 LED drivers, while its EAB SRAM provides a 4K-entry MAC-address CAM shadow. Industrial temperature grade matches -40 to +85 Β°C central-office environments.
Recommended
Recommended Products Summary
Engineering reference data for EP1K50TI144-3N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1K50TI144-2N | EP1K50TI144-1X | EP1K50TC144-3N | EP1K30TI144-3N | EP1K50TI144-3 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 144-pin TQFP (Industrial, Pb-free) | 144-pin TQFP - same | 144-pin TQFP - same | 144-pin TQFP - same | 144-pin TQFP - same | 144-pin TQFP - same |
| Logic Elements | 2,880 | 2,880 | 2,880 | 2,880 | 1,728 | 2,880 |
| Typical Gates | 50,000 | 50,000 | 50,000 | 50,000 | 30,000 | 50,000 |
| Speed Grade | -3 (~166 MHz) | -2 (~133 MHz) | -1 (~100 MHz) | -3 (~166 MHz) | -3 (~166 MHz) | -3 (~166 MHz) |
| Operating Temperature | -40 Β°C to +85 Β°C (Industrial) | -40 Β°C to +85 Β°C (Industrial) | -40 Β°C to +85 Β°C (Industrial) | 0 Β°C to +70 Β°C (Commercial) | -40 Β°C to +85 Β°C (Industrial) | -40 Β°C to +85 Β°C (Industrial) |
| Core Voltage (VCCINT) | 2.5 V (2.375-2.625 V) | 2.5 V (2.375-2.625 V) | 2.5 V (2.375-2.625 V) | 2.5 V (2.375-2.625 V) | 2.5 V (2.375-2.625 V) | 2.5 V (2.375-2.625 V) |
| Lead-Free (RoHS) | Yes (NiPdAu, "N" suffix) | Yes | Yes | Yes | Yes | No (SnPb finish) |
| Embedded Memory (EAB SRAM) | 40,960 bits | 40,960 bits | 40,960 bits | 40,960 bits | 24,576 bits | 40,960 bits |
| Maximum User I/O | 102 | 102 | 102 | 102 | 72 | 102 |
Key Differentiators
- Fastest ACEX 1K speed grade in a Pb-free industrial package (vs EP1K50TI144-2N)
- Industrial temperature range for harsh-environment designs (vs EP1K50TC144-3N)
- Pb-free NiPdAu lead-free terminal finish (vs EP1K50TI144-3 (without N suffix))
Design Notes
ACEX 1K devices require separate VCCINT (2.5 V core) and VCCIO (2.5 V / 3.3 V / 5 V multiVolt I/O) planes. Place one 100 Β΅F tantalum plus 0.1 Β΅F ceramic per VCCINT pin pair, and one 0.1 Β΅F ceramic per VCCIO bank. Power-up sequencing requires VCCINT before VCCIO; failure to observe this can cause latch-up. The ICCINT typical value is in the 5-50 mA range depending on utilization, while I/O supply current scales with switching frequency and load - estimate 5 mA per bank at 50 MHz.
The 144-pin TQFP has a 0.5 mm pitch and 22 mm x 22 mm body. Use 4-layer PCB with continuous power and ground planes, and route all 102 user I/O on inner layers to escape the dense perimeter. Place the EPC8 or EPC16 configuration PROM within 25 mm of the FPGA to minimize passive-serial stub length. JTAG chain length should not exceed 150 mm without a buffer; include a JTAG header for ByteBlasterMV / USB-Blaster programming.
ACEX 1K is SRAM-volatile: a configuration bitstream must be loaded at every power-up from an external serial PROM (EPC2/4/8/16) or a microprocessor. Do NOT use ACEX 1K as a substitute for MAX 7000/3000 CPLDs in designs that need instant-on operation - configuration time is 50-200 ms. Also verify that all unused I/O pins are set to 'tri-stated input with weak pull-up' in the Quartus pin-assignment file; floating outputs can cause 5-10 mA I/O bank current draw.
Estimated: at 50% logic utilization with 50% toggle rate, the EP1K50TI144-3N dissipates approximately 0.5 W. The TQFP-144 has theta_JA around 35 Β°C/W on a 4-layer JEDEC test board, giving junction temperature rise of ~17 Β°C above ambient. Industrial-temperature designs are comfortable at 70 Β°C ambient without a heatsink; for sealed enclosures above 85 Β°C, attach a small 10 mm x 10 mm copper pad or thermal adhesive pad to the package top.
Differential pairs (LVDS) on ACEX 1K require matched-length routing within 50 mil tolerance; route each pair on the same layer with no vias. Single-ended 5 V inputs use the LVTTL/LVCMOS 5V I/O standard and require 3.3 V VCCIO bank - never connect 5 V signals to a bank with VCCIO < 3.0 V. Clock inputs (CLK0/CLK1) should be routed first, length-matched, and terminated with 33 Ξ© series resistor at the FPGA pin if driving from a long trace.
Compliance Information
Pb-free NiPdAu terminal finish per the "N" suffix. RoHS compliant per Altera/Intel PSG product declaration. ACEX 1K family is in NRND status; verify long-term availability before new design-in.
