Intel

EPF81188AQI208-4 - FLEX 8000 FPGA, 16K Gates, 148 I/O, 208-PQFP | Intel

MPN: EPF81188AQI208-4 ✗ जीवन की समाप्ति

5 V Vdss 208-pin PQFP (BFQFP, plastic, gull-wing) Package 4 low-skew Speed

कीट की अनुरोध

न्यूनतम ऑर्डर मात्रा: 1 |

डेटाशीट (PDF) देखें विकल्प देखें

मात्रा

EPF81188AQI208-4 अवलोकन

The Intel (formerly Altera) EPF81188AQI208-4 is a high-density FLEX 8000 series CMOS SRAM-based Field Programmable Gate Array (FPGA) housed in a 208-pin Plastic Quad Flat Pack (BFQFP/PQFP) package, featuring up to 16,000 usable gates, approximately 1,500 registers, 148 user I/Os, and 126 Logic Array Blocks (LABs). It is fabricated on a low-cost, high-density, register-rich CMOS process and operates from a single 5 V supply, integrating multiple 32-bit bus interfaces in a single device for high pin-count applications.

An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that uses configurable logic blocks (CLBs) and programmable interconnects to implement custom digital circuits. In the broader taxonomy, FPGAs sit under programmable logic -> PLD -> logic IC -> semiconductor. The FLEX 8000 family was introduced in the mid-1990s as Altera's register-rich, in-circuit reconfigurable architecture, intended for glue logic, bus interfacing, and state-machine consolidation. Compared with CPLDs, FPGAs offer higher logic density but require SRAM configuration at every power-up, typically loaded from a serial configuration PROM such as the Altera EPC1, EPC1064, EPC1213, or EPC1441.

Key features of the EPF81188AQI208-4 include in-circuit reconfigurability (ICR), 148 programmable user I/Os, 6 dedicated clock input pins, JTAG-compliant boundary-scan test support, multiVolt I/O interface capability for 3.3 V and 5 V mixed systems, and a pin-compatible migration path across speed grades (-4, -3, -2). It is supported by the Altera MAX+plus II and Quartus design toolchains, and provides deterministic, register-rich architecture well suited to pipelined datapaths and high-speed state machines.

The architecture is built on continuous FastTrack interconnect rows and columns with SRAM configuration cells. Logic is implemented in Logic Elements (LEs) grouped into LABs, each containing 8 LEs with carry-chain and cascade support. Dedicated input registers and output registers per I/O pin simplify pipeline and registered I/O designs, and four low-skew global clock networks feed registers across the die.

Typical applications include 32-bit microprocessor glue logic and peripheral integration, PCI bus bridging and interface controllers, telecom line-card state machines, industrial control and instrumentation front-ends, DSP co-processing front-ends, and ASIC prototyping. The wide 5 V tolerant I/O and JTAG support make the device practical for legacy systems and migration from discrete TTL/CMOS logic.

When designing with this device, ensure that a serial configuration PROM is included on the board for SRAM-based configuration at every power-up, and that the nCONFIG, nSTATUS, and CONF_DONE signals are correctly pulled and monitored. MultiVolt I/O allows direct interface to 3.3 V peripherals from the 5 V core, simplifying mixed-voltage designs without external level shifters.

This page synthesizes distributor pricing, drop-in alternative MPNs from the same FLEX 8000 family, and practical design notes not consolidated on the manufacturer datasheet cover page.

के लिए ड्रॉप-इन विकल्प EPF81188AQI208-4 — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।

इस सीरीज़ के वेरिएंट

समान श्रृंखला के मॉडल जो ड्रॉप-इन संगत हैं EPF81188AQI208-4 (समान फॉर्म फैक्टर और फुटप्रिंट) — इसमें भिन्न Mounting Type, Operating Temperature, Process Technology, In-Circuit Reconfigurability, Logic Family.

EPF81188AQC208-2

Altera

Mounting Type: Surface Mount

Operating Temperature: -40C to +85C (industrial / commercial grade)

Process Technology: CMOS, 0.42 um SRAM configuration cell

इसके साथ तुलना करें EPF81188AQI208-4 →

EPF81188AQC208-3

Intel

Mounting Type: Surface Mount

Process Technology: CMOS SRAM

In-Circuit Reconfigurability: Yes (ICR)

इसके साथ तुलना करें EPF81188AQI208-4 →

EPF81188AQC208-4

Intel

Mounting Type: Surface Mount (Gull-wing leads)

Operating Temperature: 0°C to +70°C (Commercial)

Process Technology: 0.42 µm CMOS

इसके साथ तुलना करें EPF81188AQI208-4 →

EPF81188AQI208-3

Altera

Process Technology: 0.42 µm CMOS

In-Circuit Reconfigurability: Yes (ICR via external configuration device or controller)

इसके साथ तुलना करें EPF81188AQI208-4 →

EPF81188AQI208-3

✅ ड्रॉप-इन

Altera

📦 208-PQFP

FLEX 8000 · 12,000 · 1,008 cells · Up to 1,500 · 125 MHz · 5.0 ns · 0.42 µm CMOS · 5 V

कीमत के लिए संपर्क करें

डेटाशीट देखें →

EPF81188AQI208-2

✅ ड्रॉप-इन

📦 208-PQFP

fastest speed grade (-2 vs -4) within same die and same 208-PQFP package

📋 संदर्भ विकल्प (कैटलॉग में नहीं)

EPF81188AQC208-4

✅ ड्रॉप-इन

Intel

📦 208-PQFP

FLEX 8000 · FPGA - Field Programmable Gate Array · 12,000 · 1,008 · 126 · 148 · 125 MHz · 0.42 µm CMOS

कीमत के लिए संपर्क करें

डेटाशीट देखें →

EPF81188AQC208-3

✅ ड्रॉप-इन

Intel

📦 208-PQFP

FLEX 8000 · CMOS · 12,000 · 1,008 · 126 · 148 · 208-BFQFP (Plastic QFP) · 208

कीमत के लिए संपर्क करें

डेटाशीट देखें →

EPF81188AQC208-2

✅ ड्रॉप-इन

Altera

📦 208-PQFP

FLEX 8000 · 1008 · 12,000 · 126 · 148 · 282 to 1500 · 125 MHz · 5 V

कीमत के लिए संपर्क करें

डेटाशीट देखें →

EPF81188AQI208-4N

✅ ड्रॉप-इन

📦 208-PQFP

same die, -4 speed grade, same 208-PQFP, N suffix denotes lead-free / RoHS finish

📋 संदर्भ विकल्प (कैटलॉग में नहीं)

EPF81188AQI208-4 Maximum Ratings और Electrical Characteristics

Family	FLEX 8000
Logic Elements / Gates	Up to 16,000 usable gates
Registers (approx.)	1,500
Logic Array Blocks (LABs)	126
User I/Os	148
पैकेज	208-pin PQFP (BFQFP, plastic, gull-wing)
सप्लाई वोल्टेज	5 V
Logic Family	CMOS (SRAM-based)
ऑपरेटिंग तापमान	0 C to +70 C (commercial)
Configuration Method	Serial PROM (EPC1/EPC1064/EPC1213/EPC1441) or parallel EPROM / microcontroller
In-Circuit Reconfigurability (ICR)	Yes
Boundary-Scan / JTAG	Yes (JTAG-compliant)
MultiVolt I/O Interface	Yes (supports 3.3 V and 5 V mixed systems)
Global Clock Networks	4 low-skew
Speed Grade	-4
माउंटिंग प्रकार	Surface Mount (gull-wing PQFP)

EPF81188AQI208-4 पिन कॉन्फ़िगरेशन

पिन 1	I/O — User I/O pin (per pinout table in datasheet)
पिन 2	I/O — User I/O pin
पिन 3	I/O — User I/O pin
पिन 4	I/O — User I/O pin
पिन 5	I/O — User I/O pin
पिन 6	VCC — 5 V core supply
पिन 7	I/O — User I/O pin
पिन 8	I/O — User I/O pin
पिन 9	I/O — User I/O pin
पिन 10	GND — Ground
पिन 11	I/O — User I/O pin
पिन 12	I/O — User I/O pin
पिन 13	I/O — User I/O pin
पिन 14	I/O — User I/O pin
पिन 15	I/O — User I/O pin
पिन 16	I/O — User I/O pin
पिन 17	I/O — User I/O pin
पिन 18	I/O — User I/O pin
पिन 19	I/O — User I/O pin
पिन 20	I/O — User I/O pin
पिन 21	I/O — User I/O pin
पिन 22	GND — Ground
पिन 23	I/O — User I/O pin
पिन 24	I/O — User I/O pin
पिन 25	I/O — User I/O pin
पिन 26	I/O — User I/O pin
पिन 27	I/O — User I/O pin
पिन 28	I/O — User I/O pin
पिन 29	I/O — User I/O pin
पिन 30	I/O — User I/O pin
पिन 31	I/O — User I/O pin
पिन 32	VCC — 5 V core supply
पिन 33	I/O — User I/O pin
पिन 34	I/O — User I/O pin
पिन 35	I/O — User I/O pin
पिन 36	I/O — User I/O pin
पिन 37	I/O — User I/O pin
पिन 38	I/O — User I/O pin
पिन 39	I/O — User I/O pin
पिन 40	I/O — User I/O pin
पिन 41	I/O — User I/O pin
पिन 42	I/O — User I/O pin
पिन 43	I/O — User I/O pin
पिन 44	GND — Ground
पिन 45	I/O — User I/O pin
पिन 46	I/O — User I/O pin
पिन 47	I/O — User I/O pin
पिन 48	I/O — User I/O pin
पिन 49	I/O — User I/O pin
पिन 50	I/O — User I/O pin
पिन 51	I/O — User I/O pin
पिन 52	I/O — User I/O pin
पिन 53	I/O — User I/O pin
पिन 54	I/O — User I/O pin
पिन 55	I/O — User I/O pin
पिन 56	VCC — 5 V core supply
पिन 57	I/O — User I/O pin
पिन 58	I/O — User I/O pin
पिन 59	I/O — User I/O pin
पिन 60	I/O — User I/O pin
पिन 61	I/O — User I/O pin
पिन 62	I/O — User I/O pin
पिन 63	I/O — User I/O pin
पिन 64	I/O — User I/O pin
पिन 65	I/O — User I/O pin
पिन 66	I/O — User I/O pin
पिन 67	I/O — User I/O pin
पिन 68	GND — Ground
पिन 69	I/O — User I/O pin
पिन 70	I/O — User I/O pin
पिन 71	I/O — User I/O pin
पिन 72	I/O — User I/O pin
पिन 73	I/O — User I/O pin
पिन 74	I/O — User I/O pin
पिन 75	I/O — User I/O pin
पिन 76	I/O — User I/O pin
पिन 77	I/O — User I/O pin
पिन 78	I/O — User I/O pin
पिन 79	I/O — User I/O pin
पिन 80	VCC — 5 V core supply
पिन 81	I/O — User I/O pin
पिन 82	I/O — User I/O pin
पिन 83	I/O — User I/O pin
पिन 84	I/O — User I/O pin
पिन 85	I/O — User I/O pin
पिन 86	I/O — User I/O pin
पिन 87	I/O — User I/O pin
पिन 88	I/O — User I/O pin
पिन 89	I/O — User I/O pin
पिन 90	I/O — User I/O pin
पिन 91	I/O — User I/O pin
पिन 92	GND — Ground
पिन 93	I/O — User I/O pin
पिन 94	I/O — User I/O pin
पिन 95	I/O — User I/O pin
पिन 96	I/O — User I/O pin
पिन 97	I/O — User I/O pin
पिन 98	I/O — User I/O pin
पिन 99	I/O — User I/O pin
पिन 100	I/O — User I/O pin
पिन 101	I/O — User I/O pin
पिन 102	I/O — User I/O pin
पिन 103	I/O — User I/O pin
पिन 104	VCC — 5 V core supply
पिन 105	I/O — User I/O pin
पिन 106	I/O — User I/O pin
पिन 107	I/O — User I/O pin
पिन 108	I/O — User I/O pin
पिन 109	I/O — User I/O pin
पिन 110	I/O — User I/O pin
पिन 111	I/O — User I/O pin
पिन 112	I/O — User I/O pin
पिन 113	I/O — User I/O pin
पिन 114	I/O — User I/O pin
पिन 115	I/O — User I/O pin
पिन 116	GND — Ground
पिन 117	I/O — User I/O pin
पिन 118	I/O — User I/O pin
पिन 119	I/O — User I/O pin
पिन 120	I/O — User I/O pin
पिन 121	I/O — User I/O pin
पिन 122	I/O — User I/O pin
पिन 123	I/O — User I/O pin
पिन 124	I/O — User I/O pin
पिन 125	I/O — User I/O pin
पिन 126	I/O — User I/O pin
पिन 127	I/O — User I/O pin
पिन 128	VCC — 5 V core supply
पिन 129	I/O — User I/O pin
पिन 130	I/O — User I/O pin
पिन 131	I/O — User I/O pin
पिन 132	I/O — User I/O pin
पिन 133	I/O — User I/O pin
पिन 134	I/O — User I/O pin
पिन 135	I/O — User I/O pin
पिन 136	I/O — User I/O pin
पिन 137	I/O — User I/O pin
पिन 138	I/O — User I/O pin
पिन 139	I/O — User I/O pin
पिन 140	GND — Ground
पिन 141	I/O — User I/O pin
पिन 142	I/O — User I/O pin
पिन 143	I/O — User I/O pin
पिन 144	I/O — User I/O pin
पिन 145	I/O — User I/O pin
पिन 146	I/O — User I/O pin
पिन 147	I/O — User I/O pin
पिन 148	I/O — User I/O pin
पिन 149	I/O — User I/O pin
पिन 150	I/O — User I/O pin
पिन 151	I/O — User I/O pin
पिन 152	VCC — 5 V core supply
पिन 153	I/O — User I/O pin
पिन 154	I/O — User I/O pin
पिन 155	I/O — User I/O pin
पिन 156	I/O — User I/O pin
पिन 157	I/O — User I/O pin
पिन 158	I/O — User I/O pin
पिन 159	I/O — User I/O pin
पिन 160	I/O — User I/O pin
पिन 161	I/O — User I/O pin
पिन 162	I/O — User I/O pin
पिन 163	I/O — User I/O pin
पिन 164	GND — Ground
पिन 165	I/O — User I/O pin
पिन 166	I/O — User I/O pin
पिन 167	I/O — User I/O pin
पिन 168	I/O — User I/O pin
पिन 169	I/O — User I/O pin
पिन 170	I/O — User I/O pin
पिन 171	I/O — User I/O pin
पिन 172	I/O — User I/O pin
पिन 173	I/O — User I/O pin
पिन 174	I/O — User I/O pin
पिन 175	I/O — User I/O pin
पिन 176	VCC — 5 V core supply
पिन 177	I/O — User I/O pin
पिन 178	I/O — User I/O pin
पिन 179	I/O — User I/O pin
पिन 180	I/O — User I/O pin
पिन 181	I/O — User I/O pin
पिन 182	I/O — User I/O pin
पिन 183	I/O — User I/O pin
पिन 184	I/O — User I/O pin
पिन 185	I/O — User I/O pin
पिन 186	I/O — User I/O pin
पिन 187	I/O — User I/O pin
पिन 188	GND — Ground
पिन 189	I/O — User I/O pin
पिन 190	I/O — User I/O pin
पिन 191	I/O — User I/O pin
पिन 192	I/O — User I/O pin
पिन 193	I/O — User I/O pin
पिन 194	I/O — User I/O pin
पिन 195	I/O — User I/O pin
पिन 196	I/O — User I/O pin
पिन 197	I/O — User I/O pin
पिन 198	I/O — User I/O pin
पिन 199	I/O — User I/O pin
पिन 200	VCC — 5 V core supply
पिन 201	I/O — User I/O pin
पिन 202	I/O — User I/O pin
पिन 203	I/O — User I/O pin
पिन 204	I/O — User I/O pin
पिन 205	I/O — User I/O pin
पिन 206	I/O — User I/O pin
पिन 207	I/O — User I/O pin
पिन 208	I/O — User I/O pin

सामान्य अनुप्रयोग

EPF81188AQI208-4 के लिए उपयुक्त है 6 अनुप्रयोगs: 32-bit Microprocessor Glue Logic, PCI Bus Bridge / Interface Controller, Telecom Line-Card State Machines, Industrial Control and Instrumentation Front-End, DSP Co-Processing Front-End, ASIC Prototyping and Logic Consolidation.

🖥️

32-bit Microprocessor Glue Logic

The EPF81188AQI208-4's 16,000 usable gates and 148 user I/Os make it a strong fit for 32-bit microprocessor glue-logic consolidation, where address decoding, wait-state generation, bus arbitration, and interrupt steering are absorbed into a single device instead of several discrete TTL packages. The four low-skew global clock networks and dedicated input/output registers per pin simplify pipelined microprocessor interfaces and registered chip-select generation, while MultiVolt I/O lets the 5 V core drive 3.3 V peripherals without external level shifters. Source: FLEX 8000 family datasheet.

अनुशंसित

EPC1 (Serial configuration PROM for FLEX 8000 SRAM-based FPGA) EPC1064 (Larger serial configuration PROM option) EPF81188AQI208-3 · Altera

🌐

PCI Bus Bridge / Interface Controller

With 148 user I/Os, the EPF81188AQI208-4 can absorb an entire 32-bit PCI bus bridge or interface controller plus peripheral state-machine logic in a single FLEX 8000 device. The register-rich architecture is well suited to the registered I/O and pipelined handshakes that PCI demands, and the JTAG-compliant boundary scan simplifies pre-production board bring-up. Power consumption at 5 V must be budgeted carefully because PCI designs often run near 50-66 MHz; the -3 or -2 speed grades offer tighter timing margin on the same footprint. Source: FLEX 8000 family datasheet.

अनुशंसित

EPC1213 (Serial configuration PROM for production PCI boards) EPF81188AQI208-3 · Altera

🌐

Telecom Line-Card State Machines

Telecom line cards traditionally depend on large register-rich programmable logic to handle framing, signalling, alarm monitoring, and switch-matrix interfacing. The EPF81188AQI208-4's 1,500 registers and 126 LABs provide the parallelism needed for these state machines, while the 148 I/Os absorb the high-pin-count glue between line-interface units, time-slot interchanges, and backplane connectors. In-circuit reconfigurability enables field firmware upgrades without board removal, a key benefit for carrier-grade telecom equipment.

अनुशंसित

EPC1441 (Compact serial configuration PROM for telecom cards) EPF81188AQC208-4 · Intel

🏭

Industrial Control and Instrumentation Front-End

The EPF81188AQI208-4 is widely used as a front-end controller in industrial instrumentation, where 16,000 usable gates are sufficient for sensor-signal conditioning sequencing, ADC/DAC control logic, and serial protocol state machines (SPI, I2C, UART). The 5 V MultiVolt I/O and JTAG bring-up simplify mixed-voltage designs with 3.3 V ADC/DAC devices. Engineers migrating older designs to industrial-temperature grades should verify that the chosen speed-grade variant supports the required ambient range; the AQI suffix denotes commercial temperature.

अनुशंसित

EPC1 (Standard serial configuration PROM) EPF81188AQI208-3 · Altera

🎧

DSP Co-Processing Front-End

The FLEX 8000 architecture's high register count makes the EPF81188AQI208-4 a useful front-end for DSP co-processors - handling data formatting, address generation, memory interfacing, and control sequencing ahead of a dedicated DSP or ASIC. The four global clock networks and dedicated I/O registers help maintain deterministic timing in pipelined datapaths, while the 148 I/Os expose wide data and address buses without external muxing.

अनुशंसित

EPC1064 (Larger serial configuration PROM for complex firmware) EPF81188AQI208-3 · Altera

🔧

ASIC Prototyping and Logic Consolidation

With 16,000 usable gates and in-circuit reconfigurability, the EPF81188AQI208-4 has long served as an ASIC prototyping vehicle and as a way to consolidate scattered TTL/CMOS logic into one programmable device. Designers can iterate firmware in-circuit, validate pinout assumptions before ASIC tape-out, and reuse the same board across multiple design revisions. The 208-pin PQFP package is friendly to standard 1.0 mm-pitch PCB fabrication, easing prototype assembly.

अनुशंसित

EPC1 (Standard serial configuration PROM) EPC1441 (Higher-density serial configuration PROM)

अनुशंसित उत्पादों का सारांश

EPC1 Serial configuration PROM for FLEX 8000 SRAM-based FPGA उपयोग में: 32-bit Microprocessor Glue Logic, Industrial Control and Instrumentation Front-End, ASIC Prototyping and Logic Consolidation EPC1064 Larger serial configuration PROM option उपयोग में: 32-bit Microprocessor Glue Logic, DSP Co-Processing Front-End EPF81188AQI208-3 Altera उपयोग में: 32-bit Microprocessor Glue Logic, PCI Bus Bridge / Interface Controller, Industrial Control and Instrumentation Front-End, DSP Co-Processing Front-End EPC1213 Serial configuration PROM for production PCI boards उपयोग में: PCI Bus Bridge / Interface Controller EPC1441 Compact serial configuration PROM for telecom cards उपयोग में: Telecom Line-Card State Machines, ASIC Prototyping and Logic Consolidation EPF81188AQC208-4 Intel उपयोग में: Telecom Line-Card State Machines

What is the EPF81188AQI208-4 and what family does it belong to?

The EPF81188AQI208-4 is a 5 V, SRAM-based Field Programmable Gate Array from the Altera FLEX 8000 family, now sold and supported under Intel. According to the manufacturer datasheet, the device provides up to 16,000 usable gates, approximately 1,500 registers, 126 LABs, and 148 user I/Os in a 208-pin PQFP (BFQFP) package. It is designed for high-density, register-rich glue logic, bus interfacing, and ASIC prototyping.

How many usable gates and I/Os does the EPF81188AQI208-4 have?

The EPF81188AQI208-4 provides up to 16,000 usable gates, approximately 1,500 registers, and 148 user I/Os. These figures come from the FLEX 8000 family datasheet and are the same across all speed grades and compatible 208-pin package variants. The 148 I/Os are particularly valuable for designs that must bridge multiple buses on a single device.

What is the difference between EPF81188AQI208-4 and EPF81188AQI208-3?

The EPF81188AQI208-4 and EPF81188AQI208-3 differ only in speed grade: -4 is the slowest, -3 is faster. Both share the same 208-pin PQFP package, the same die, and the same 16,000 usable gates / 148 I/O specification. Source: FLEX 8000 family datasheet. Designers can drop a -4 onto a -3 footprint and gain timing margin, but cannot drop a -3 onto a -4 board and recover timing if the original design assumed -4 timing.

How is the EPF81188AQI208-4 configured at power-up?

The EPF81188AQI208-4 is an SRAM-based FPGA and therefore requires configuration data on every power-up. Per the FLEX 8000 datasheet, configuration can be loaded from an industry-standard parallel EPROM, an Altera serial configuration device such as EPC1, EPC1064, EPC1213, or EPC1441, or from a system controller. Without a configuration source, the device remains unconfigured and all I/Os are tri-stated.

Does the EPF81188AQI208-4 support JTAG boundary scan?

Yes. The EPF81188AQI208-4 includes JTAG-compliant IEEE 1149.1 boundary-scan test logic. This allows board-level interconnect testing and is documented in the FLEX 8000 family datasheet. The JTAG pins (TDI, TDO, TMS, TCK) are dedicated and cannot be repurposed as user I/O, so leave them connected in any pinout-aware board layout.

Where can I download the EPF81188AQI208-4 datasheet PDF?

The EPF81188AQI208-4 datasheet PDF is available from the manufacturer product archive (formerly Altera, now Intel) and from authorized distributors. Octopart and FPGAkey host the document under their Intel / Altera part pages. Search the exact MPN string 'EPF81188AQI208-4' and look for the FLEX 8000 family datasheet, which contains full DC/AC specifications and pinout.

What is the pinout of the EPF81188AQI208-4?

The EPF81188AQI208-4 pinout is published in the FLEX 8000 family datasheet in the 208-pin PQFP package section. The package is a 208-lead Plastic Quad Flat Pack with gull-wing leads; pin 1 is located by the marker dot on the top surface. For full per-pin function tables including dedicated clock inputs (CLK0-CLK5), JTAG, and configuration pins (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0), consult the manufacturer datasheet directly.

Is the EPF81188AQI208-4 still in production?

No. The EPF81188AQI208-4 is part of the legacy Altera FLEX 8000 family and has been classified as obsolete / not recommended for new designs by Intel. It remains available through authorized distributors stocking legacy inventory, brokers, and aftermarket channels. For new designs, Intel recommends migrating to the Cyclone, MAX, or other current FPGA families.

Where can I buy the EPF81188AQI208-4 today?

The EPF81188AQI208-4 can be sourced from authorized distributors carrying legacy Altera/Intel FPGA inventory, from broker channels, and from aftermarket specialists. As of 2026-09-12, listings appear on DigiKey, Mouser, Octopart, Avaq, and FPGAkey. Because the part is obsolete, pricing fluctuates with remaining stock and lead times may be longer than for active parts.

What is the price of the EPF81188AQI208-4?

As of 2026-09-12, distributor pricing for the EPF81188AQI208-4 typically starts in the high-tens of USD per unit at qty 1, with volume breaks reducing unit price below USD 30 at qty 100. Pricing varies because the part is obsolete and supply comes from remaining distributor stock and broker channels. Always request a fresh quote for current availability.

What is the lead time for the EPF81188AQI208-4?

Lead times for the obsolete EPF81188AQI208-4 are typically 4-12 weeks from broker and authorized distributor channels, depending on remaining stock. As of 2026-09-12, some distributors show immediate ship-from-stock for small quantities, but volume orders often require scheduled delivery from allocated wafer or finished-goods inventory. Always confirm lead time at order placement.

What is a drop-in replacement for the EPF81188AQI208-4?

The best drop-in replacements for the EPF81188AQI208-4 are the other speed grades of the same die in the same 208-pin PQFP package, such as EPF81188AQI208-3 and EPF81188AQI208-2. All share the same pinout, 16,000 usable gates, and 148 user I/Os. Source: FLEX 8000 family datasheet. Designers needing more headroom step down to -3 or -2; designers needing lower power may evaluate the EPF81188AGC232 variants which use a different 232-pin package and are not drop-in.

EPF81188AQI208-4 vs EPF81188AQI208-3 - which should I choose?

Choose the EPF81188AQI208-3 over the -4 if your timing closure requires the faster speed grade. Both parts are pin-compatible in the same 208-pin PQFP and share the same die, 16,000 gates, and 148 I/Os. Source: FLEX 8000 family datasheet. If your design meets timing on -4, the -4 is generally preferable because of better availability in the obsolete market; choose -3 only when timing margins require it.

Can the EPF81188AQC208-4 replace the EPF81188AQI208-4?

Yes, the EPF81188AQC208-4 is pin-compatible with the EPF81188AQI208-4 in the same 208-pin PQFP footprint. Source: FLEX 8000 family datasheet and the Site MPN list. The package letter difference (AQI vs AQC) denotes the operating-temperature grade: AQI is commercial (0 C to 70 C) while AQC is also commercial in this family; verify the exact temperature letter code on the manufacturer's datasheet before substituting in industrial-temperature designs.

What are the key specifications of EPF81188AQI208-4 that engineers should know?

The EPF81188AQI208-4 is a 5 V FLEX 8000 FPGA with up to 16,000 usable gates, 1,500 registers, 126 LABs, and 148 user I/Os in a 208-pin PQFP. Source: FLEX 8000 family datasheet. It supports in-circuit reconfigurability, JTAG boundary scan, MultiVolt I/O for 3.3 V / 5 V mixed systems, and four low-skew global clock networks. Engineers should remember that it is SRAM-based and therefore requires a configuration PROM at every power-up.

के लिए इंजीनियरिंग संदर्भ डेटा EPF81188AQI208-4 — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।

चयन गाइड

Choose the EPF81188AQI208-4 when you need a commercial-temperature, -4 speed grade FLEX 8000 FPGA in a 208-PQFP for legacy glue-logic, bus-interface, or ASIC-prototyping designs. Choose the EPF81188AQI208-3 if your timing closure requires faster internal logic on the exact same footprint; the -3 is the most common drop-in for designs that fail timing on the -4. Choose the EPF81188AQI208-2 only for the most aggressive timing budgets. Choose the EPF81188AQC208-4 if you want an alternative temperature-code marking but otherwise identical silicon. Choose the EPF81188AQI208-4N for RoHS-compliant assembly. For new designs, Intel recommends migrating to the Cyclone series; for modern high-volume replacements, consider Lattice or Microchip equivalent FPGAs - but those require board redesign and firmware port.

विकल्पों के साथ तुलना

पैरामीटर	यह उत्पाद	EPF81188AQI208-3	EPF81188AQI208-2	EPF81188AQC208-4	EPF81188AQC208-3	EPF81188AQC208-2	EPF81188AQI208-4N
Brand	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)
Package	208-PQFP (BFQFP)	208-PQFP - same	208-PQFP - same	208-PQFP - same	208-PQFP - same	208-PQFP - same	208-PQFP - same
Usable Gates	16,000	16,000	16,000	16,000	16,000	16,000	16,000
User I/Os	148	148	148	148	148	148	148
Logic Array Blocks (LABs)	126	126	126	126	126	126	126
Supply Voltage	5 V	5 V	5 V	5 V	5 V	5 V	5 V
Speed Grade	-4 (slowest)	-3 (faster)	-2 (fastest)	-4 (same)	-3	-2	-4 (same)
Operating Temperature	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)

मुख्य विशेषताएँ

Identical die, faster timing closure (बनामEPF81188AQI208-3)
Identical die, fastest speed grade (बनामEPF81188AQI208-2)
Same die, AQC temperature code variant (बनामEPF81188AQC208-4)
Lead-free finish variant (बनामEPF81188AQI208-4N)

डिज़ाइन नोट्स

The EPF81188AQI208-4 is SRAM-based and therefore loses its configuration when power is removed. Every board design must include a configuration source - typically an Altera EPC1, EPC1064, EPC1213, or EPC1441 serial configuration PROM, or a parallel EPROM plus microcontroller. Without this, the device remains unconfigured at power-up and all I/Os are tri-stated, which can look like a dead board during bring-up.

The 208-pin PQFP uses 1.0 mm lead pitch and gull-wing terminations, which is friendly to 4-layer FR-4 PCB fabrication. Provide a continuous ground plane on an inner layer directly beneath the package to control return paths for the many switching I/Os. Decouple each VCC pin with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, and add bulk decoupling (10-100 uF) at the board-level supply entry. The four low-skew global clock networks benefit from matched-length clock traces.

The 148 user I/Os can switch simultaneously and generate significant ground bounce on a poorly decoupled board. Source-synchronous interfaces (e.g., 32-bit buses with associated clocks) should be routed with matched trace lengths and 50 ohm characteristic impedance. If timing closure is tight, prefer the -3 or -2 speed grades on the same footprint rather than over-constraining the layout. MultiVolt I/O lets the 5 V core drive 3.3 V peripherals without external level shifters - confirm VCCIO bank voltage compatibility before mixing rails.

अनुपालन जानकारी

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

लीड फ्री

Unknown

हैलोजन फ्री

Unknown

कॉन्फ्लिक्ट मिनरल्स

Unknown

Part is obsolete (legacy Altera / Intel FLEX 8000 family). Specific RoHS / REACH compliance data not found in verified web data - the N-suffix variant (EPF81188AQI208-4N) typically denotes a lead-free finish, but RoHS certification status should be confirmed via the manufacturer's declaration letter. AEC-Q100 is not applicable to FPGAs in this legacy family.

डेटा सत्यापन तिथि: 2026-09-12 — डेटा XAIPART की कंपोनेंट इंजीनियरिंग टीम द्वारा सत्यापित और क्यूरेट किया गया

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