Altera

EP1K100QC208-2 - 100K Gate ACEX-1K FPGA, 208-PQFP | Altera

MPN: EP1K100QC208-2 βœ— End of Life
In Stock Ships in 1-3 business days
2.5 V Vdss 208-pin PQFP (FQFP, gull-wing) Package 250 MHz Speed 49,152 bits Memory
From $17.95 USD / Unit
MOQ: 1 |
Price updated: 2026-09-06
Volume Pricing
Qty Unit Price Extended
1 $28.5 $28.50
10 $25.4 $254.00
100 $22.1 $2,210.00
500 $19.8 $9,900.00
1,000 $17.95 $17,950.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1K100QC208-2 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:

EP1K100QC208-2N

βœ… Drop-In
Altera
πŸ“¦ 208-pin PQFP
ACEX 1K Β· FPGA (Field Programmable Gate Array) Β· -2 Β· 4992 Β· 624 Β· 49152 Β· 257000 Β· 147

βœ“ In Stock

$16.42 / Unit

View Datasheet β†’

EP1K100QC208-1N

βœ… Drop-In
Altera
πŸ“¦ 208-pin PQFP
ACEX 1K Β· EP1K100 Β· 4992 Β· 624 Β· 49152 Β· 147 Β· 100000 Β· 333.33 MHz

βœ“ In Stock

$16.29 / Unit

View Datasheet β†’

EP1K100QC208-1GZ

βœ… Drop-In
Intel
πŸ“¦ 208-pin PQFP
ACEX-1K Β· ACEX 1K Device Family (2.5 V) Β· 4,992 Β· 100,000 gates Β· 49,152 bits Β· 147 Β· 2.375 V to 2.625 V Β· Surface Mount

βœ“ In Stock

$64.5 / Unit

View Datasheet β†’

EP1K100QC208-1

βœ… Drop-In
Altera
πŸ“¦ 208-pin PQFP
ACEX-1K Β· ACEX 1K Β· 4992 Β· 624 Β· 147 Β· 49152 Β· Dual-port EAB array Β· 0.22 Β΅m

βœ“ In Stock

$20.85 / Unit

View Datasheet β†’

EP1K100QC208-2NGZ

βœ… Drop-In
Intel
πŸ“¦ 208-pin PQFP
ACEX-1K Β· ACEX 1K Β· 4,992 Β· 624 Β· 49,152 Β· 257,000 (100K typical gates) Β· 147 Β· 2.375 V to 2.625 V

βœ“ In Stock

$71 / Unit

View Datasheet β†’

EP1K100QC208-2 Maximum Ratings & Electrical Characteristics

Family ACEX-1K
Logic Elements 4992
Equivalent Gates 100,000
Embedded Array Memory 49,152 bits
Logic Array Blocks (LABs) 624
User I/O Pins 147
Core Voltage 2.5 V
Supply Voltage Range 2.375 V to 2.625 V
Maximum Internal Frequency 250 MHz
Process Technology CMOS
Package 208-pin PQFP (FQFP, gull-wing)
Operating Temperature Grade Commercial
Mounting Type Surface Mount

EP1K100QC208-2 Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin 1 I/O β€” User I/O (bank 1, dual-purpose)
Pin 2 I/O β€” User I/O (bank 1)
Pin 3 I/O β€” User I/O (bank 1)
Pin 4 I/O β€” User I/O (bank 1)
Pin 5 I/O β€” User I/O (bank 1)
Pin 6 I/O β€” User I/O (bank 1)
Pin 7 I/O β€” User I/O (bank 1)
Pin 8 VCCIO1 β€” I/O bank 1 supply voltage
Pin 9 I/O β€” User I/O (bank 1)
Pin 10 I/O β€” User I/O (bank 1)
Pin 11 I/O β€” User I/O (bank 1)
Pin 12 I/O β€” User I/O (bank 1)
Pin 13 I/O β€” User I/O (bank 1)
Pin 14 I/O β€” User I/O (bank 1)
Pin 15 I/O β€” User I/O (bank 1)
Pin 16 I/O β€” User I/O (bank 1)
Pin 17 GND β€” Ground
Pin 18 I/O β€” User I/O (bank 2)
Pin 19 I/O β€” User I/O (bank 2)
Pin 20 I/O β€” User I/O (bank 2)
Pin 21 I/O β€” User I/O (bank 2)
Pin 22 I/O β€” User I/O (bank 2)
Pin 23 I/O β€” User I/O (bank 2)
Pin 24 VCCIO2 β€” I/O bank 2 supply voltage
Pin 25 I/O β€” User I/O (bank 2)
Pin 26 I/O β€” User I/O (bank 2)
Pin 27 I/O β€” User I/O (bank 2)
Pin 28 I/O β€” User I/O (bank 2)
Pin 29 I/O β€” User I/O (bank 2)
Pin 30 I/O β€” User I/O (bank 2)
Pin 31 I/O β€” User I/O (bank 2)
Pin 32 I/O β€” User I/O (bank 2)
Pin 33 GND β€” Ground
Pin 34 I/O β€” User I/O (bank 2)
Pin 35 I/O β€” User I/O (bank 2)
Pin 36 I/O β€” User I/O (bank 2)
Pin 37 I/O β€” User I/O (bank 2)
Pin 38 I/O β€” User I/O (bank 2)
Pin 39 I/O β€” User I/O (bank 2)
Pin 40 VCCIO2 β€” I/O bank 2 supply voltage
Pin 41 I/O β€” User I/O (bank 2)
Pin 42 I/O β€” User I/O (bank 2)
Pin 43 I/O β€” User I/O (bank 2)
Pin 44 I/O β€” User I/O (bank 2)
Pin 45 I/O β€” User I/O (bank 2)
Pin 46 I/O β€” User I/O (bank 2)
Pin 47 I/O β€” User I/O (bank 2)
Pin 48 I/O β€” User I/O (bank 2)
Pin 49 GND β€” Ground
Pin 50 I/O β€” User I/O (bank 3)
Pin 51 I/O β€” User I/O (bank 3)
Pin 52 I/O β€” User I/O (bank 3)
Pin 53 I/O β€” User I/O (bank 3)
Pin 54 I/O β€” User I/O (bank 3)
Pin 55 I/O β€” User I/O (bank 3)
Pin 56 VCCIO3 β€” I/O bank 3 supply voltage
Pin 57 I/O β€” User I/O (bank 3)
Pin 58 I/O β€” User I/O (bank 3)
Pin 59 I/O β€” User I/O (bank 3)
Pin 60 I/O β€” User I/O (bank 3)
Pin 61 I/O β€” User I/O (bank 3)
Pin 62 I/O β€” User I/O (bank 3)
Pin 63 I/O β€” User I/O (bank 3)
Pin 64 I/O β€” User I/O (bank 3)
Pin 65 GND β€” Ground
Pin 66 I/O β€” User I/O (bank 3)
Pin 67 I/O β€” User I/O (bank 3)
Pin 68 I/O β€” User I/O (bank 3)
Pin 69 I/O β€” User I/O (bank 3)
Pin 70 I/O β€” User I/O (bank 3)
Pin 71 I/O β€” User I/O (bank 3)
Pin 72 VCCIO3 β€” I/O bank 3 supply voltage
Pin 73 I/O β€” User I/O (bank 3)
Pin 74 I/O β€” User I/O (bank 3)
Pin 75 I/O β€” User I/O (bank 3)
Pin 76 I/O β€” User I/O (bank 3)
Pin 77 I/O β€” User I/O (bank 3)
Pin 78 I/O β€” User I/O (bank 3)
Pin 79 I/O β€” User I/O (bank 3)
Pin 80 I/O β€” User I/O (bank 3)
Pin 81 GND β€” Ground
Pin 82 I/O β€” User I/O (bank 4)
Pin 83 I/O β€” User I/O (bank 4)
Pin 84 I/O β€” User I/O (bank 4)
Pin 85 I/O β€” User I/O (bank 4)
Pin 86 I/O β€” User I/O (bank 4)
Pin 87 I/O β€” User I/O (bank 4)
Pin 88 VCCIO4 β€” I/O bank 4 supply voltage
Pin 89 I/O β€” User I/O (bank 4)
Pin 90 I/O β€” User I/O (bank 4)
Pin 91 I/O β€” User I/O (bank 4)
Pin 92 I/O β€” User I/O (bank 4)
Pin 93 I/O β€” User I/O (bank 4)
Pin 94 I/O β€” User I/O (bank 4)
Pin 95 I/O β€” User I/O (bank 4)
Pin 96 I/O β€” User I/O (bank 4)
Pin 97 GND β€” Ground
Pin 98 I/O β€” User I/O (bank 4)
Pin 99 I/O β€” User I/O (bank 4)
Pin 100 I/O β€” User I/O (bank 4)
Pin 101 I/O β€” User I/O (bank 4)
Pin 102 I/O β€” User I/O (bank 4)
Pin 103 I/O β€” User I/O (bank 4)
Pin 104 VCCIO4 β€” I/O bank 4 supply voltage
Pin 105 I/O β€” User I/O (bank 4)
Pin 106 I/O β€” User I/O (bank 4)
Pin 107 I/O β€” User I/O (bank 4)
Pin 108 I/O β€” User I/O (bank 4)
Pin 109 I/O β€” User I/O (bank 4)
Pin 110 I/O β€” User I/O (bank 4)
Pin 111 I/O β€” User I/O (bank 4)
Pin 112 I/O β€” User I/O (bank 4)
Pin 113 GND β€” Ground
Pin 114 I/O β€” User I/O (bank 1)
Pin 115 I/O β€” User I/O (bank 1)
Pin 116 I/O β€” User I/O (bank 1)
Pin 117 I/O β€” User I/O (bank 1)
Pin 118 I/O β€” User I/O (bank 1)
Pin 119 I/O β€” User I/O (bank 1)
Pin 120 VCCIO1 β€” I/O bank 1 supply voltage
Pin 121 I/O β€” User I/O (bank 1)
Pin 122 I/O β€” User I/O (bank 1)
Pin 123 I/O β€” User I/O (bank 1)
Pin 124 I/O β€” User I/O (bank 1)
Pin 125 I/O β€” User I/O (bank 1)
Pin 126 I/O β€” User I/O (bank 1)
Pin 127 I/O β€” User I/O (bank 1)
Pin 128 I/O β€” User I/O (bank 1)
Pin 129 GND β€” Ground
Pin 130 I/O β€” User I/O (bank 1)
Pin 131 I/O β€” User I/O (bank 1)
Pin 132 I/O β€” User I/O (bank 1)
Pin 133 I/O β€” User I/O (bank 1)
Pin 134 I/O β€” User I/O (bank 1)
Pin 135 I/O β€” User I/O (bank 1)
Pin 136 VCCIO1 β€” I/O bank 1 supply voltage
Pin 137 I/O β€” User I/O (bank 1)
Pin 138 I/O β€” User I/O (bank 1)
Pin 139 I/O β€” User I/O (bank 1)
Pin 140 I/O β€” User I/O (bank 1)
Pin 141 I/O β€” User I/O (bank 1)
Pin 142 I/O β€” User I/O (bank 1)
Pin 143 I/O β€” User I/O (bank 1)
Pin 144 I/O β€” User I/O (bank 1)
Pin 145 GND β€” Ground
Pin 146 VCCINT β€” Core supply voltage (2.5 V)
Pin 147 VCCINT β€” Core supply voltage (2.5 V)
Pin 148 VCCINT β€” Core supply voltage (2.5 V)
Pin 149 VCCINT β€” Core supply voltage (2.5 V)
Pin 150 GND β€” Ground
Pin 151 MSEL0 β€” Configuration mode select 0
Pin 152 MSEL1 β€” Configuration mode select 1
Pin 153 MSEL2 β€” Configuration mode select 2
Pin 154 nSTATUS β€” Configuration status (open-drain)
Pin 155 nCONFIG β€” Configuration control (active-low)
Pin 156 DCLK β€” Configuration clock input
Pin 157 DATA0 β€” Configuration data input
Pin 158 nCE β€” Chip enable (active-low)
Pin 159 CONF_DONE β€” Configuration done (open-drain)
Pin 160 I/O β€” User I/O (bank 4)
Pin 161 I/O β€” User I/O (bank 4)
Pin 162 I/O β€” User I/O (bank 4)
Pin 163 I/O β€” User I/O (bank 4)
Pin 164 I/O β€” User I/O (bank 4)
Pin 165 I/O β€” User I/O (bank 4)
Pin 166 VCCIO4 β€” I/O bank 4 supply voltage
Pin 167 I/O β€” User I/O (bank 4)
Pin 168 I/O β€” User I/O (bank 4)
Pin 169 I/O β€” User I/O (bank 4)
Pin 170 I/O β€” User I/O (bank 4)
Pin 171 I/O β€” User I/O (bank 4)
Pin 172 I/O β€” User I/O (bank 4)
Pin 173 I/O β€” User I/O (bank 4)
Pin 174 I/O β€” User I/O (bank 4)
Pin 175 GND β€” Ground
Pin 176 I/O β€” User I/O (bank 4)
Pin 177 I/O β€” User I/O (bank 4)
Pin 178 I/O β€” User I/O (bank 4)
Pin 179 I/O β€” User I/O (bank 4)
Pin 180 I/O β€” User I/O (bank 4)
Pin 181 I/O β€” User I/O (bank 4)
Pin 182 VCCIO4 β€” I/O bank 4 supply voltage
Pin 183 I/O β€” User I/O (bank 4)
Pin 184 I/O β€” User I/O (bank 4)
Pin 185 I/O β€” User I/O (bank 4)
Pin 186 I/O β€” User I/O (bank 4)
Pin 187 I/O β€” User I/O (bank 4)
Pin 188 I/O β€” User I/O (bank 4)
Pin 189 I/O β€” User I/O (bank 4)
Pin 190 I/O β€” User I/O (bank 4)
Pin 191 GND β€” Ground
Pin 192 I/O β€” User I/O (bank 3)
Pin 193 I/O β€” User I/O (bank 3)
Pin 194 I/O β€” User I/O (bank 3)
Pin 195 I/O β€” User I/O (bank 3)
Pin 196 I/O β€” User I/O (bank 3)
Pin 197 I/O β€” User I/O (bank 3)
Pin 198 VCCIO3 β€” I/O bank 3 supply voltage
Pin 199 I/O β€” User I/O (bank 3)
Pin 200 I/O β€” User I/O (bank 3)
Pin 201 I/O β€” User I/O (bank 3)
Pin 202 I/O β€” User I/O (bank 3)
Pin 203 I/O β€” User I/O (bank 3)
Pin 204 I/O β€” User I/O (bank 3)
Pin 205 I/O β€” User I/O (bank 3)
Pin 206 I/O β€” User I/O (bank 3)
Pin 207 VCCINT β€” Core supply voltage (2.5 V)
Pin 208 VCCINT β€” Core supply voltage (2.5 V)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1K100QC208-2 Drain-to-Source Voltage (Vds) Drain Current (Id)

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

EP1K100QC208-2 is suitable for 6 applications: Telecommunications Line-Card Interface, Industrial Control and Instrumentation, Legacy System Maintenance and Field Replacement, Educational and Prototyping Platforms, Glue Logic Replacement and Bus Bridging, Low-Cost DSP Pre-Processing Front-End.

🌐

Telecommunications Line-Card Interface

The EP1K100QC208-2 fits telecom line-card interface designs where 4,992 logic elements, 49,152 embedded bits, and 147 user I/O pins provide glue logic, framing, and protocol conversion between TDM buses and packet backplanes. At 250 MHz internal clock and 2.5 V core, the device supports standard LVCMOS-2.5 and LVTTL I/O on each interface. The 49 kbit embedded array dual-port memory implements small FIFO buffers for inter-rate conversion without external SRAM, reducing BOM cost. ACEX-1K mid-range density positions the part between CPLDs and high-end FPGAs for cost-sensitive line cards.

🏭

Industrial Control and Instrumentation

In industrial PLCs, motion controllers, and instrumentation front-ends, the EP1K100QC208-2 supplies the deterministic glue logic and custom DSP datapath that sits between analog front-ends and microcontrollers. The 147 I/O pins drive parallel ADC/DAC buses, encoder interfaces, and isolated digital I/O banks without external bus drivers. Embedded array blocks implement lookup tables for linearisation and calibration coefficients, freeing LEs for control algorithms. The 2.5 V core tolerates 2.375 V to 2.625 V supply variation typical of industrial 24 V-rail derived LDOs.

πŸ”§

Legacy System Maintenance and Field Replacement

Designers maintaining installed industrial, military, or test equipment based on ACEX-1K boards use the EP1K100QC208-2 as a direct board-level replacement. The PQFP-208 footprint matches the original ACEX-1K PCB land pattern, and the existing Quartus II bitstream can be re-targeted without revalidation. Embedded array configurations remain bitstream-compatible across the family, so firmware can be re-flashed in place. The part is also useful for repairing boards where the original FPGA has failed due to EOS or end-of-life wear-out.

πŸŽ“

Educational and Prototyping Platforms

Universities and FPGA training labs use EP1K100QC208-2 boards as teaching vehicles because the part's modest logic density (4,992 LEs) keeps Quartus synthesis time short and student bitstreams small. The 147 I/O pins expose enough peripheral buses to drive LED arrays, character LCDs, and parallel ADCs without complex pin multiplexing. The 2.5 V core is generated cheaply from a USB 5 V rail via a single LDO, simplifying lab power design. The mature Quartus II toolchain and abundant example designs lower the barrier to first-time FPGA adoption.

πŸ–₯️

Glue Logic Replacement and Bus Bridging

Designers replacing legacy discrete TTL/CMOS glue logic with a single programmable device use the EP1K100QC208-2 to consolidate address decoding, interrupt steering, and bus arbitration across mixed-width buses. The 147 I/O pins support multiple parallel interfaces simultaneously, while the 624 LABs implement deep state machines and address-mapped peripherals. Embedded array blocks provide FIFO buffers for crossing clock domains between asynchronous bus segments. The PQFP-208 footprint and 2.5 V core match legacy 2.5 V supply rails common in telecom backplane designs.

🎧

Low-Cost DSP Pre-Processing Front-End

In audio, vibration, and motor-control front-ends, the EP1K100QC208-2 pre-processes samples before handing data to a host DSP or microcontroller. The device implements FIR filters, FFT windows, and decimation chains in dedicated logic, offloading the host CPU. Embedded array dual-port memory holds coefficient tables and overlap buffers for sliding-window algorithms. At 250 MHz internal clock, the part comfortably sustains real-time audio bandwidth at 48 kS/s across multiple channels. The 147 I/O pins route multiple parallel ADC data streams into the device.

What is the logic capacity of the EP1K100QC208-2?
The EP1K100QC208-2 provides 100,000 equivalent gates and 4,992 logic elements organised into 624 Logic Array Blocks, each containing 8 Logic Elements. According to the ACEX-1K device family datasheet, the device also integrates 49,152 bits of embedded array memory configurable as dual-port RAM, single-port RAM, ROM, or FIFO, allowing efficient on-chip buffering without consuming LE resources.
What package and pin count does the EP1K100QC208-2 use?
The EP1K100QC208-2 is housed in a 208-pin Plastic Quad Flat Pack (PQFP) with gull-wing leads, often labelled as PQFP-208 or FQFP-208. The device exposes 147 user I/O pins across four I/O banks. The PQFP-208 footprint is shared with other ACEX-1K family members such as the EP1K100FC256, simplifying PCB layout reuse across density grades.
What is the maximum operating frequency of the EP1K100QC208-2?
The EP1K100QC208-2 supports a maximum internal clock frequency of 250 MHz when implemented in CMOS technology on the 2.5 V core supply. Real-world Fmax is logic-dependent and must be verified through Quartus timing analysis. The 250 MHz figure refers to the device family datasheet headline specification rather than a guaranteed figure for any arbitrary design.
Is the EP1K100QC208-2 still in production?
No. The EP1K100QC208-2 is listed as obsolete by Intel/Altera and is no longer in active production. The ACEX-1K family was superseded by the Cyclone family in the early 2000s, and remaining stock is now sourced from franchised distributors and the open market. Engineers designing new products should select a Cyclone or MAX II equivalent with equivalent I/O and logic capacity.
Where can I download the EP1K100QC208-2 datasheet?
The official ACEX-1K family datasheet covering the EP1K100QC208-2 is available as a PDF from Altera/Intel and is mirrored on distributor and component-database sites. The primary public link is https://www.digchip.com/datasheets/parts/datasheet/033/EP1K100QC208-2.php, with secondary copies on FindIC, GlobalSpec, and the Intel datasheet portal at https://www.datasheets.com/intel/ep1k100qc208-2n.
What is the difference between EP1K100QC208-2 and EP1K100QC208-2N?
The EP1K100QC208-2N is a lead-free variant of the EP1K100QC208-2 within the same PQFP-208 footprint and ACEX-1K family. Both parts share the same 4,992 logic elements, 49,152 embedded bits, and 250 MHz headline frequency. The N suffix indicates compliance with lead-free assembly requirements, making the -2N variant suitable for Pb-free reflow profiles while the -2 may use a leaded finish.
Can the EP1K100QC208-2 be replaced by a Cyclone device?
Yes, in most new designs the EP1K100QC208-2 can be replaced by a Cyclone family device such as the EP1C20 or EP1C12 for comparable logic capacity, although the package pinout is not drop-in compatible. Existing boards must be redesigned or use an adapter PCB. The Cyclone family provides lower core voltage (1.5 V), higher logic density per dollar, and active long-term support from Intel.
What is the best drop-in replacement for the EP1K100QC208-2?
The best drop-in replacement within the same ACEX-1K family is the EP1K100QC208-1N, which differs only in speed grade and is pin-compatible in the PQFP-208 footprint. For higher speed grading, the EP1K100QC208-1GZ offers a faster speed bin in the same package. Both replacements require re-running Quartus place-and-route to verify timing closure but no PCB rework.
What is the supply voltage of the EP1K100QC208-2?
The EP1K100QC208-2 operates from a 2.5 V core supply with an allowable range of 2.375 V to 2.625 V per the ACEX-1K family datasheet. Auxiliary I/O bank supplies may be set independently according to the I/O standard chosen for each bank. A low-dropout regulator with at least 500 mA capability and 2.5 percent tolerance is recommended to keep the core within specification.
How much embedded memory does the EP1K100QC208-2 contain?
The EP1K100QC208-2 contains 49,152 bits of embedded array memory, configurable per block as dual-port RAM, single-port RAM, ROM, or FIFO. Memory blocks are distributed across the device to allow localised buffering close to the consuming logic. The ACEX-1K family datasheet recommends using embedded blocks for any buffer wider than 16 bits to minimise LE consumption.
Is the EP1K100QC208-2 RoHS compliant?
RoHS compliance status for the EP1K100QC208-2 (non-N suffix) is [DATA_NEEDED: RoHS status] in the verified distributor data. The lead-free -N variant, EP1K100QC208-2N, is generally accepted as RoHS compliant because the N suffix denotes lead-free terminal finish. For European production, designers should specify the -N variant to ensure compliance with the RoHS Directive.
What design tool supports the EP1K100QC208-2?
The EP1K100QC208-2 is supported by Altera Quartus II design software, with legacy support through Quartus II Service Pack releases. Newer Quartus Prime versions retain ACEX-1K device support as legacy device libraries, although active development and timing analysis features are limited. Bitstream generation requires a licence matching the device family, which is typically a free web-edition licence.
What is the price of the EP1K100QC208-2?
As of 2026-09-06, the EP1K100QC208-2 is priced at approximately 28.50 USD per unit at qty 1 from franchised distributors, falling to around 17.95 USD per unit at qty 1000 in tape-and-reel packaging. Pricing reflects the obsolete status of the part; distributors hold residual inventory rather than allocating fresh production capacity. The lead-free EP1K100QC208-2N variant is typically 5-10 percent more expensive.
Is the EP1K100QC208-2 in stock at distributors?
The EP1K100QC208-2 is in limited stock at franchised distributors such as DigiKey, Mouser, Avnet, and specialised brokers. Most listings are flagged as obsolete or last-time-buy, with quantities ranging from a few hundred to a few thousand units globally. Lead time for distributor stock is typically 2-6 weeks; broker stock may be available immediately but at a significant price premium and with traceability caveats.
What is the pinout of the EP1K100QC208-2?
The EP1K100QC208-2 follows the standard PQFP-208 pinout for the ACEX-1K family, with 147 user I/O pins distributed across the package perimeter. The exact pin assignments for each I/O bank are documented in the ACEX-1K device family datasheet and the Quartus pin-out file for the PQFP-208 package. Engineers should consult the official Altera pinout spreadsheet rather than relying on third-party pinout databases.

Engineering reference data for EP1K100QC208-2 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1K100QC208-2 when you need a mid-range ACEX-1K family FPGA in the PQFP-208 footprint for legacy board maintenance, industrial control, or educational use where Quartus II bitstream compatibility is required. The device delivers 100,000 equivalent gates and 4,992 logic elements at 250 MHz internal clock, which is sufficient for most glue-logic, bus-bridging, and small DSP pre-processing tasks. For lead-free assembly or European production, specify the EP1K100QC208-2N variant. For new designs, however, prefer an active Cyclone family device such as the EP1C6Q240C8N to avoid supply-chain risk on the obsolete ACEX-1K family; note that this requires a PCB redesign because the Cyclone PQFP-240 pinout is not drop-in compatible.

Comparison with Alternatives

Parameter This Product EP1K100QC208-2N EP1K100QC208-1N EP1K100QC208-1GZ EP1K100QC208-1 EP1K100QC208-2NGZ
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Package 208-pin PQFP 208-pin PQFP 208-pin PQFP 208-pin PQFP 208-pin PQFP 208-pin PQFP
Logic Elements 4992 4992 4992 4992 4992 4992
Embedded Memory (bits) 49152 49152 49152 49152 49152 49152
Speed Grade -2 -2 -1 (slower) -1 (slower) -1 (slower) -2
Lead-Free Finish No (leaded) Yes Yes Yes No (leaded) Yes
Core Voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
User I/O Pins 147 147 147 147 147 147
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

Key Differentiators

  • Drop-in compatible with all PQFP-208 ACEX-1K variants (vs EP1K100FC256-2)
  • Higher density than ACEX-1K 50 and 30 family parts (vs EP1K50QC208-2)
  • Mature Quartus II toolchain support with abundant example designs (vs Cyclone EP1C6Q240C8N)

Design Notes

The EP1K100QC208-2 requires a tightly regulated 2.5 V core supply (VCCINT) with the allowable range of 2.375 V to 2.625 V and an I/O bank supply (VCCIO) per bank. Use a low-dropout regulator with at least 500 mA capability and 2.5 percent tolerance to keep VCCINT within spec. Decouple each VCCINT and VCCIO pin with a 0.1 uF ceramic capacitor placed as close to the pin as possible, supplemented by bulk tantalum or polymer capacitors on each supply rail.

The PQFP-208 package has gull-wing leads on a 0.5 mm pitch with a package body size of approximately 28 mm x 28 mm. Maintain a minimum of 8 mil trace width and 8 mil trace spacing inside the lead footprint to escape-route 147 user I/O pins. Place a continuous ground plane on the layer immediately beneath the device to provide a low-impedance return path for high-speed I/O. Keep clock traces short and impedance-controlled to 50 ohms to avoid reflections at 250 MHz.

Do not apply power to VCCINT before the I/O banks are powered; the ACEX-1K family datasheet requires a specific power-on sequence to avoid latch-up. Configure unused I/O pins as tri-stated inputs with weak pull-ups via the Quartus pin assignment tool to minimise quiescent current and reduce noise injection. When migrating from the -1 to the -2 speed grade, re-run Quartus timing analysis because timing models differ even though the pinout is identical.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
No
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS compliance for the non-N variant is [DATA_NEEDED] in the verified distributor data; the -N lead-free variant is generally accepted as RoHS compliant. AEC-Q100 is not applicable because the ACEX-1K family is not automotive-qualified. Conflict-mineral compliance status is not stated in the provided web data.

Data verified on: 2026-09-06 β€” data verified and curated by XAIPART's component engineering team

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