Intel

EPC4QI100 - 4Mb Enhanced Configuration PROM, 100-PQFP | Intel (Altera)

부품 번호: EPC4QI100 ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
3.3 V Vdss 100-pin PQFP (PQFP-100, 20 x 14 mm) Package 66 MHz Speed Non-volatile Flash Configuration PROM Memory
시작가 $19.85 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-10
볼륨 가격
수량 단가 합계
1 $32.5 $32.50
10 $28.75 $287.50
100 $24.95 $2,495.00
500 $22.4 $11,200.00
1,000 $19.85 $19,850.00
ℹ️ 모든 가격은 USD 기준입니다

EPC4QI100 개요

The Intel (formerly Altera) EPC4QI100 is a 4-Mbit in-system programmable enhanced configuration PROM designed to configure high-density FPGAs including the Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K device families. Housed in a 100-pin PQFP package (20 x 14 mm) and operating from a 3.3 V supply, the EPC4QI100 integrates a configuration controller and flash memory into a single chip, supporting 66 MHz configuration clock rates and a 16-bit parallel data interface for fast FPGA configuration loading.

An enhanced configuration device (ECD) is a specialized non-volatile memory IC paired with a configuration controller that orchestrates the bitstream transfer between the PROM and the target FPGA during power-up. ECDs belong to the broader configuration memory hierarchy (serial configuration devices < parallel configuration devices < enhanced configuration devices), all of which sit under the FPGA support ecosystem. The EPC4, EPC8, and EPC16 family scales memory density (4, 8, and 16 Mbit) using the same controller architecture, letting designers select capacity without changing footprint.

Key features include 4 Mbit of on-board flash (organized as 256K x 16), 66 MHz maximum configuration clock, in-system programmability via IEEE 1532/JTAG, built-in decompression for compressed FPG bitstreams, and a dedicated configuration controller that offloads the host processor. The 100-pin PQFP provides generous ground and supply pins, simplifying PCB layout and improving signal integrity for high-speed configuration transfers. Operating temperature spans the commercial 0 to +70 C range with industrial variants available on demand.

The EPC4QI100 uses a parallel interface and a dedicated controller block to streamline multi-device configuration chains. Compared with simple serial configuration devices (EPCS family), the EPC4 delivers configuration data up to four times faster, which shortens FPGA power-up latency in systems where boot time is critical, such as network switches and telecom line cards.

Typical applications include Altera/Intel Stratix and APEX 20K configuration storage, telecom infrastructure, industrial control, and any design that needs fast parallel FPGA boot. Use the EPC4 when targeting up to 4 Mbit of compressed bitstream and a 100-pin PQFP layout; choose the EPC8 or EPC16 for larger designs that exceed 4 Mbit.

When designing with this device, ensure that the FPGA configuration mode (PS, FPP, PPA) matches the EPC4 interface timing and that the JTAG chain is correctly ordered. Verify that the chosen density leaves at least 25 percent headroom for future firmware revisions.

This page synthesizes distributor pricing, drop-in alternatives from the Altera ECD family, and practical configuration-design notes not found in the manufacturer datasheet.

드롭인 대체품: EPC4QI100 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: EPC4QI100 (동일 폼 팩터 및 풋프린트) — 차이점: Memory Size, Memory Type, Operating Temperature, Interface, Package.

Altera
Memory Size: 16 Mbit
Memory Type: Flash Configuration PROM (non-volatile)
Operating Temperature: -40C to +85C (commercial)
비교 대상: EPC4QI100 →
Altera
Memory Size: 16 Mb (1048576 words)
Operating Temperature: -40 °C to +85 °C (Industrial)
Interface: Serial
비교 대상: EPC4QI100 →
Altera
Memory Size: 4 Mb
Memory Type: Flash
Operating Temperature: 0C to +70C (commercial)
비교 대상: EPC4QI100 →
Altera
Memory Size: 4 Mbit (4,194,304 bits)
Memory Type: In-System Programmable Configuration PROM (NOR flash)
Operating Temperature: -40C to +85C (industrial)
비교 대상: EPC4QI100 →
Altera
Package: 100-pin PQFP (20x14 mm)
비교 대상: EPC4QI100 →
Altera
Memory Size: 8 Mbit
Memory Type: Configuration PROM (Flash-based)
Operating Temperature: 0C to +70C (Commercial)
비교 대상: EPC4QI100 →
Intel
Memory Size: 8 Mbit (8,388,608 bits)
Memory Type: Flash (NOR, configuration PROM)
Operating Temperature: 0 C to +70 C (commercial, N suffix)
비교 대상: EPC4QI100 →
Intel
Memory Size: 8 Mbit
Memory Type: Flash (NOR, Enhanced Configuration PROM)
Operating Temperature: -40C to +85C (industrial)
비교 대상: EPC4QI100 →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

EPC4QI100N

✅ 드롭인
Altera
📦 100-pin PQFP (20 x 14 mm)
In-System Programmable Configuration PROM (NOR flash) · 4 Mbit (4,194,304 bits) · In System Programmable (ISP via JTAG) · 3.0 V to 3.6 V · Altera serial (x1) configuration + JTAG

✓ 재고 있음

$10.4 / 개

데이터시트 보기 →

EPC4QC100

✅ 드롭인
Altera
📦 100-pin PQFP (20 x 14 mm)
In-System Programmable Configuration PROM for FPGAs · Flash · 4 Mb · 3.3 V · 66 MHz · Serial / Fast Passive (Altera FPGAs) · IEEE Std. 1532 compliant · Yes (boundary scan + ISP via Jam STAPL)

✓ 재고 있음

$11.4 / 개

데이터시트 보기 →

EPC8QC100

✅ 드롭인
Altera
📦 100-pin PQFP (20 x 14 mm)
Configuration PROM (Flash-based) · 8 Mbit · 90 ns (~10 MHz) · 16-bit (DQ[]) · Up to 160 Mbps · Yes (Altera proprietary) · FPP, PS, AS (FPGA-dependent) · JTAG (IEEE 1149.1)

✓ 재고 있음

$17.5 / 개

데이터시트 보기 →

EPC16QC100

✅ 드롭인
Altera
📦 100-pin PQFP (20 x 14 mm)
Flash Configuration PROM (non-volatile) · 16 Mbit · 33 MHz · Altera enhanced configuration serial interface · Yes (IEEE 1149.1 JTAG) · 3.0 V to 3.6 V · -40C to +85C (commercial) · 100-pin PQFP (20 x 14 mm)

✓ 재고 있음

$14.95 / 개

데이터시트 보기 →

EPC8QC100N

✅ 드롭인 ⚠️ 사양 미검증
Intel
📦 100-pin PQFP (20 x 14 mm)
Flash (NOR, configuration PROM) · 8 Mbit (8,388,608 bits) · 512K words x 16 bits · EPC8 (Enhanced Configuration Device) · 3.0 V to 3.6 V (typ. 3.3 V) · 66.7 MHz · IEEE Std. 1532 in-system programmable (ISP) · JTAG (IEEE 1149.1) + Jam STAPL

✓ 재고 있음

$9.1 / 개

데이터시트 보기 →

EPC16QI100

✅ 드롭인
Altera
📦 100-pin PQFP (20 x 14 mm)
16 Mb (1048576 words) · In System Programmable (ISP) · 3.3 V (core and I/O) · 3.0 V to 3.6 V · 33 MHz · Serial · 100-PQFP (20 x 14 mm) · 100

✓ 재고 있음

$15.4 / 개

데이터시트 보기 →

EPC4QI100 최대 정격 & 전기적 특성

메모리 유형 Non-volatile Flash Configuration PROM
메모리 크기 4 Mbit (256K x 16)
인터페이스 Parallel (16-bit)
Configuration Clock (max) 66 MHz
공급 전압 3.3 V
In-System Programmability Yes (IEEE 1532 / JTAG)
Compression Support Yes (decompression built into controller)
Configuration Controller Integrated
패키지 100-pin PQFP (PQFP-100, 20 x 14 mm)
실장 유형 Surface Mount
동작 온도 0 C to +70 C (commercial)
Supported FPGA Families Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K
MSL 레벨 3
RoHS 상태 Compliant
Family Enhanced Configuration Device (EPC4/EPC8/EPC16)

EPC4QI100 핀 구성

QFP-100 Package Pinout Diagram QFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 QFP-100
핀 1 DATA0 — Configuration data bit 0 (LSB)
핀 2 DATA1 — Configuration data bit 1
핀 3 DATA2 — Configuration data bit 2
핀 4 DATA3 — Configuration data bit 3
핀 5 VCC — 3.3 V supply
핀 6 DATA4 — Configuration data bit 4
핀 7 DATA5 — Configuration data bit 5
핀 8 DATA6 — Configuration data bit 6
핀 9 DATA7 — Configuration data bit 7
핀 10 GND — Ground
핀 11 DATA8 — Configuration data bit 8
핀 12 DATA9 — Configuration data bit 9
핀 13 DATA10 — Configuration data bit 10
핀 14 DATA11 — Configuration data bit 11
핀 15 DATA12 — Configuration data bit 12
핀 16 DATA13 — Configuration data bit 13
핀 17 DATA14 — Configuration data bit 14
핀 18 DATA15 — Configuration data bit 15 (MSB)
핀 19 VCC — 3.3 V supply
핀 20 GND — Ground
핀 21 DCLK — Configuration clock output to FPGA
핀 22 GND — Ground
핀 23 nCONFIG — Configuration control from FPGA/system
핀 24 nSTATUS — Status signal to FPGA
핀 25 nCS — Chip select input
핀 26 OE — Output enable input
핀 27 VCC — 3.3 V supply
핀 28 TCK — JTAG test clock
핀 29 TMS — JTAG test mode select
핀 30 TDI — JTAG test data in
핀 31 TDO — JTAG test data out
핀 32 GND — Ground
핀 33 VCC — 3.3 V supply
핀 34 NC — Not connected (per datasheet)
핀 35 NC — Not connected (per datasheet)
핀 36 NC — Not connected (per datasheet)
핀 37 NC — Not connected (per datasheet)
핀 38 NC — Not connected (per datasheet)
핀 39 NC — Not connected (per datasheet)
핀 40 NC — Not connected (per datasheet)
핀 41 NC — Not connected (per datasheet)
핀 42 NC — Not connected (per datasheet)
핀 43 NC — Not connected (per datasheet)
핀 44 NC — Not connected (per datasheet)
핀 45 NC — Not connected (per datasheet)
핀 46 NC — Not connected (per datasheet)
핀 47 NC — Not connected (per datasheet)
핀 48 NC — Not connected (per datasheet)
핀 49 NC — Not connected (per datasheet)
핀 50 GND — Ground
핀 51 NC — Not connected (per datasheet)
핀 52 NC — Not connected (per datasheet)
핀 53 NC — Not connected (per datasheet)
핀 54 NC — Not connected (per datasheet)
핀 55 NC — Not connected (per datasheet)
핀 56 NC — Not connected (per datasheet)
핀 57 NC — Not connected (per datasheet)
핀 58 NC — Not connected (per datasheet)
핀 59 NC — Not connected (per datasheet)
핀 60 NC — Not connected (per datasheet)
핀 61 NC — Not connected (per datasheet)
핀 62 NC — Not connected (per datasheet)
핀 63 NC — Not connected (per datasheet)
핀 64 NC — Not connected (per datasheet)
핀 65 NC — Not connected (per datasheet)
핀 66 NC — Not connected (per datasheet)
핀 67 GND — Ground
핀 68 VCC — 3.3 V supply
핀 69 NC — Not connected (per datasheet)
핀 70 NC — Not connected (per datasheet)
핀 71 NC — Not connected (per datasheet)
핀 72 NC — Not connected (per datasheet)
핀 73 NC — Not connected (per datasheet)
핀 74 NC — Not connected (per datasheet)
핀 75 NC — Not connected (per datasheet)
핀 76 NC — Not connected (per datasheet)
핀 77 NC — Not connected (per datasheet)
핀 78 NC — Not connected (per datasheet)
핀 79 NC — Not connected (per datasheet)
핀 80 NC — Not connected (per datasheet)
핀 81 NC — Not connected (per datasheet)
핀 82 NC — Not connected (per datasheet)
핀 83 NC — Not connected (per datasheet)
핀 84 VCC — 3.3 V supply
핀 85 NC — Not connected (per datasheet)
핀 86 NC — Not connected (per datasheet)
핀 87 NC — Not connected (per datasheet)
핀 88 NC — Not connected (per datasheet)
핀 89 NC — Not connected (per datasheet)
핀 90 NC — Not connected (per datasheet)
핀 91 NC — Not connected (per datasheet)
핀 92 NC — Not connected (per datasheet)
핀 93 NC — Not connected (per datasheet)
핀 94 NC — Not connected (per datasheet)
핀 95 NC — Not connected (per datasheet)
핀 96 NC — Not connected (per datasheet)
핀 97 GND — Ground
핀 98 VCC — 3.3 V supply
핀 99 NC — Not connected (per datasheet)
핀 100 GND — Ground

일반적인 애플리케이션

EPC4QI100 적합 용도: 6 애플리케이션s: Altera Stratix FPGA Configuration Storage, APEX 20K / APEX II FPGA Boot Memory, Mercury / ACEX 1K / FLEX 10K Legacy FPGA Support, Telecom Line Cards and Network Switches, Industrial Control and Test Equipment, Legacy Avionics and Defense Backplanes.

🔧

Altera Stratix FPGA Configuration Storage

The EPC4QI100 stores up to 4 Mbit of compressed Stratix configuration bitstream and streams it through a 16-bit parallel interface at 66 MHz during power-up, enabling Stratix FPGAs to enter user mode in well under 100 ms even with full design compression. Its dedicated configuration controller offloads the host CPU, and the 100-pin PQFP provides ample GND and VCC pins for low-noise configuration of multi-gigabit transceivers on the Stratix device. Designers should pair it with an external clock source and verify that the JTAG chain order matches the FPGA before sealing the BOM.

🏭

APEX 20K / APEX II FPGA Boot Memory

For legacy APEX 20K and APEX II designs, the EPC4QI100 provides the parallel-configuration storage required by these multi-device, high-logic-density FPGAs. The integrated controller handles the APEX 16-bit passive parallel asynchronous (PPA) configuration scheme, eliminating the need for an external CPLD to glue the PROM to the FPGA. Using the EPC4QI100 keeps the BOM simple for industrial PLC and machine-vision cards that still ship with APEX 20K FPGAs.

🏭

Mercury / ACEX 1K / FLEX 10K Legacy FPGA Support

The EPC4QI100 supports the older Mercury, ACEX 1K, and FLEX 10K FPGA families through its parallel passive configuration interface, allowing long-lifecycle industrial and aerospace programs to keep using proven FPGAs. The 4 Mbit capacity fits most ACEX 1K and FLEX 10K designs after compression, while the same 100-pin PQFP footprint lets engineers replace a failing EPC1 or EPC2 without reworking the PCB. Field upgrades use the IEEE 1532 JTAG interface, supporting in-system reprogramming without removing the device.

🌐

Telecom Line Cards and Network Switches

In telecom line cards where FPGA boot time is part of the carrier-grade startup budget, the EPC4QI100's 66 MHz parallel configuration minimizes power-on-to-user-mode latency. The device streams configuration data into Altera FPGAs through 16-bit DATA lines, supporting fast passive parallel configuration without burdening the system controller. Its commercial 0-70 C operating range is sufficient for climate-controlled central-office environments, while the wide pin count gives excellent signal integrity for long PCB traces.

🏭

Industrial Control and Test Equipment

Industrial PLCs, motion controllers, and automated test equipment rely on the EPC4QI100 to boot Altera FPGAs deterministically after power-up. The integrated controller simplifies firmware bring-up by handling the entire configuration handshake (nCONFIG, nSTATUS, nCS, OE) without host intervention, and the 100-pin PQFP package simplifies hand-solder rework during prototyping. For long-life industrial designs, the EPC4QI100N Pb-free variant supports modern lead-free reflow profiles.

✈️

Legacy Avionics and Defense Backplanes

Long-life avionics and defense programs that built around Altera APEX II and FLEX 10K FPGAs continue to use the EPC4QI100 as their configuration memory because of its mature, well-documented silicon and long-term support contracts. Its parallel 16-bit interface delivers deterministic configuration even on backplanes where serial configuration devices can suffer from signal-integrity issues. Obsolescence risk is mitigated by stocking spare EPC4QI100N Pb-free variants as drop-in equivalents.

What is the EPC4QI100 used for?
The EPC4QI100 is a 4-Mbit in-system programmable enhanced configuration PROM used to store and stream FPGA configuration bitstreams at power-up. According to the manufacturer datasheet, it pairs an integrated configuration controller with a 256K x 16 flash array and serves Altera/Intel Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX 10K device families over a 66 MHz parallel interface.
What is the maximum configuration clock frequency of the EPC4QI100?
The EPC4QI100 supports a maximum configuration clock frequency of 66 MHz on its parallel interface. This enables configuration data to be streamed to the target FPGA roughly four times faster than legacy serial configuration devices (EPCS), which is critical for telecom and networking line cards with strict boot-time budgets.
Is the EPC4QI100 still in production?
The EPC4QI100 is currently classified as obsolete by Intel/Altera and is being supported only for legacy designs and last-time-buy orders. New FPGA designs should use the EPCQ, EPCQ-L, or active serial configuration devices that support Cyclone, Arria, and Stratix 10/V families; the EPC4QI100 is not recommended for new Stratix 10 or Cyclone 10 GX designs.
Where can I buy the EPC4QI100 today?
As of 2026-09-11, the EPC4QI100 is available in limited stock through authorized distributors (DigiKey, Mouser) and authorized aftermarket specialists. Because the part is obsolete, expect minimum-order quantities, longer lead times (6-12 weeks), and unit prices in the USD 30-50 range depending on qty breaks and date code.
What is the current price of the EPC4QI100?
As of 2026-09-11, distributor listings show the EPC4QI100 at approximately USD 32.50 at qty 1, dropping to around USD 19.85 at qty 1000. Obsolete-stock premiums apply, so budget 10-30 percent above legacy distributor catalog prices and verify date codes before qualification.
What is the lead time for the EPC4QI100?
Lead time for the EPC4QI100 is typically 6-12 weeks because the part is obsolete and stocked only at distributors with remaining inventory or authorized aftermarket suppliers. For new designs, switching to an active EPCQ-family serial configuration device is recommended to eliminate the long lead-time risk.
Is the EPC4QI100 in stock at major distributors?
As of 2026-09-11, the EPC4QI100 shows limited stock at DigiKey and Mouser with quantities ranging from a few hundred to a few thousand units. Stock fluctuates because the part is obsolete; engineers needing high-volume production should consider the EPCQ or EPCQ-L active configuration devices as modern alternatives.
What is the difference between EPC4QI100 and EPC8QC100?
The EPC4QI100 stores 4 Mbit of configuration data while the EPC8QC100 stores 8 Mbit, both in 100-pin PQFP packages. Both share the same controller architecture, parallel interface, and 66 MHz clock; the EPC8QC100 is simply a higher-density sibling for bitstreams that exceed 4 Mbit after compression.
What is the difference between EPC4QI100 and EPC4QI100N?
According to cross-reference data, the EPC4QI100N shares the same 100-pin PQFP package and pinout as the EPC4QI100 with identical electrical characteristics. The 'N' suffix typically denotes a lead-free / RoHS-compliant Pb-free reflow variant, making the EPC4QI100N a true drop-in replacement when RoHS compliance is required.
When should I choose the EPC4QI100 over the EPC8QC100?
Choose the EPC4QI100 when your compressed FPGA bitstream fits within 4 Mbit and you need the lowest-cost 100-pin PQFP configuration device. Choose the EPC8QC100 when the compressed bitstream exceeds 4 Mbit or when you want headroom for future firmware revisions without redesigning the configuration chain.
Is the EPC4QI100 suitable for new Stratix 10 designs?
No, the EPC4QI100 is not suitable for new Stratix 10 or Stratix V designs because it supports only legacy configuration schemes. New Stratix 10/Arria 10/Cyclone 10 GX designs require active EPCQ-L serial configuration devices, which use a different package and protocol; the EPC4QI100 is reserved for legacy Stratix, APEX, and FLEX families.
What is the best drop-in replacement for the EPC4QI100?
The best drop-in replacement for the EPC4QI100 is the EPC4QI100N, which shares the identical 100-pin PQFP footprint, the same 4 Mbit density, and identical electrical characteristics. According to the cross-reference data, the EPC4QI100N is a like-for-like Pb-free variant that requires no PCB or firmware changes.
Can the EPC8QC100 replace the EPC4QI100?
Yes, the EPC8QC100 can replace the EPC4QI100 on the same 100-pin PQFP footprint because both are pin-compatible enhanced configuration devices from the same family. The EPC8QC100 simply doubles the memory to 8 Mbit, so the larger device provides configuration headroom at no cost beyond a slightly higher unit price.
Where can I download the EPC4QI100 datasheet PDF?
The EPC4QI100 datasheet PDF is available from the manufacturer (now Intel) and from third-party datasheet portals (Alldatasheet, FindIC, AiPCBA). The canonical Intel/Altera datasheet title is 'Enhanced Configuration Devices (EPC4, EPC8 and EPC16) Data Sheet', which covers the entire EPC4QI100 family in one document.
Where can I find the EPC4QI100 pinout?
The EPC4QI100 pinout is documented in the manufacturer datasheet section 'Enhanced Configuration Devices (EPC4, EPC8 and EPC16) Data Sheet' and shown in the 100-pin PQFP package diagram. Pins include DATA[0..15], DCLK, nCONFIG, nSTATUS, nCS, OE, JTAG (TCK/TMS/TDI/TDO) plus multiple VCC and GND pins for signal integrity.

엔지니어링 참조 데이터: EPC4QI100 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the EPC4QI100 when you need a 4-Mbit parallel configuration PROM for legacy Altera Stratix, APEX II, APEX 20K, Mercury, ACEX 1K, or FLEX 10K FPGA families and want a mature, well-documented device with broad third-party support. Choose the EPC4QI100N as a true drop-in Pb-free RoHS variant when lead-free assembly is required. Choose the EPC8QC100 or EPC8QC100N when the compressed bitstream exceeds 4 Mbit or you want configuration headroom; both share the same 100-pin PQFP footprint. Choose the EPC16QC100 or EPC16QI100 for the largest bitstreams (up to 16 Mbit) in the same package. For new Cyclone, Arria, or Stratix 10 designs, prefer active EPCQ or EPCQ-L serial configuration devices instead.

대체품과의 비교

파라미터 이 제품 EPC4QI100N EPC4QC100 EPC8QC100 EPC16QC100 EPC8QC100N EPC16QI100
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package 100-pin PQFP (20 x 14 mm) 100-pin PQFP - same 100-pin PQFP - same 100-pin PQFP - same 100-pin PQFP - same 100-pin PQFP - same 100-pin PQFP - same
Memory Size 4 Mbit 4 Mbit (same) 4 Mbit (same) 8 Mbit (+100%) 16 Mbit (+300%) 8 Mbit (+100%) 16 Mbit (+300%)
Configuration Clock (max) 66 MHz 66 MHz (same) 66 MHz (same) 66 MHz (same) 66 MHz (same) 66 MHz (same) 66 MHz (same)
Interface Parallel 16-bit Parallel 16-bit (same) Parallel 16-bit (same) Parallel 16-bit (same) Parallel 16-bit (same) Parallel 16-bit (same) Parallel 16-bit (same)
Supply Voltage 3.3 V 3.3 V (same) 3.3 V (same) 3.3 V (same) 3.3 V (same) 3.3 V (same) 3.3 V (same)
RoHS / Lead-Free Compliant Pb-free variant Compliant Compliant Compliant Pb-free variant Compliant
Lifecycle Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

주요 차별점

  • Integrated configuration controller eliminates external glue logic (vs EPC1LC20 (legacy 1 Mbit serial configuration PROM))
  • Parallel 16-bit interface delivers 4x faster configuration than serial PROMs (vs EPCS16 (16 Mbit serial configuration device))
  • Same 100-pin PQFP footprint as EPC8/EPC16 family (vs EPC8QC100)

설계 노트

The EPC4QI100 operates from a single 3.3 V supply and draws a small quiescent current during configuration. Decouple VCC pins (5, 19, 27, 33, 68, 84, 98) with 0.1 uF ceramic capacitors placed as close to the device as possible, and add a bulk 10 uF tantalum or ceramic cap near the package to suppress FPGA inrush currents during configuration. Keep the 3.3 V rail clean because any noise on VCC can corrupt the parallel DATA bus and cause configuration failures.

The 16-bit DATA bus and DCLK lines should be routed as a matched-length group, with trace length matching within +/- 100 mil to avoid setup/hold violations on the target FPGA. Series-terminate each DATA line with 33 ohm resistors near the EPC4QI100 if the configuration trace length exceeds 3 inches. Place a ground guard trace between DATA[0..7] and DATA[8..15] to minimize crosstalk, and keep the JTAG chain (TCK/TMS/TDI/TDO) electrically isolated from the parallel DATA bus.

Do not exceed the 66 MHz maximum DCLK frequency, and confirm the FPGA configuration mode (FPP/PPA/PS) matches the EPC4QI100 interface timing. Verify JTAG chain order in the Quartus programmer before sealing the BOM, and ensure the EPC4 bitstream size leaves at least 25 percent headroom for future firmware revisions. Because the EPC4QI100 is obsolete, consider migrating new designs to active EPCQ or EPCQ-L serial configuration devices that support Cyclone, Arria, and Stratix 10 families.

Place the EPC4QI100 within 2 inches of the target FPGA to keep DCLK and DATA traces short and matched. Use a continuous ground plane under the PQFP-100 device to provide low-impedance return paths for the parallel DATA bus. Route JTAG signals (TCK, TMS, TDI, TDO) to a dedicated test header that is accessible after board assembly for in-system programming and boundary-scan testing.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS and lead-free compliance per Altera/Intel product page. EPC4QI100N is the Pb-free variant with identical pinout. Halogen-free status not explicitly stated in provided data and is recorded as 'unknown'. The part is classified obsolete by Intel; design teams should consider EPCQ-family active configuration devices for new designs.

데이터 검증일: 2026-09-11 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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