Altera

EPF8820ATI144-1 - FLEX 8000 FPGA 8K Gates, 1.8ns, TQFP-144 | Altera

MPN： EPF8820ATI144-1 ✗ 停產

3.0 V to 3.6 V Vdss TQFP-144 (TI144) 0.500 mm pitch Package

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MOQ： 1 |

查看資料表 (PDF) 查看替代品

數量

EPF8820ATI144-1 概覽

The Altera EPF8820ATI144-1 is a member of the FLEX 8000 family of CMOS programmable logic devices, delivering up to 8,200 usable gates, 672 logic elements, and 112 I/O pins in a 144-pin TQFP (TQ144 / 0.500 mm pitch) industrial-grade package. Built on a 0.42 µm CMOS EPROM process, this device provides a propagation delay of approximately 1.8 ns and supports system clock frequencies up to 80 MHz.

The FLEX 8000 family is an SRAM-based programmable logic device (PLD) that combines fine-grained logic elements with continuous-channel routing to deliver predictable timing. It is widely used as a flexible substitute for discrete TTL/CMOS glue logic and gate arrays, allowing designers to integrate 5V and 3.3V interfaces through MultiVolt I/O buffers while operating from a 3.0 V to 3.6 V core supply.

Key features include a continuous FastTrack Interconnect routing architecture for deterministic timing, built-in JTAG (IEEE 1149.1) boundary-scan test, in-system programmability through the EPC configuration controller, and four dedicated high-speed clock inputs with on-chip PLL-like global clock distribution. The TQFP-144 package offers an industrial operating temperature range of -40 °C to +85 °C suitable for telecom, industrial control, and embedded computing designs.

Typical applications for the EPF8820ATI144-1 include high-volume glue-logic consolidation in 5V and 3.3V systems, PCI bus interface bridges, legacy ASIC and gate-array emulation, telecom line-card control logic, and industrial automation controllers. Its compatibility with the Quartus II and MAX+PLUS II design environments also makes it a useful bridge in maintenance and long-life-cycle designs.

When designing with the EPF8820ATI144-1, ensure the design tools (Quartus II or MAX+PLUS II) match the device, and verify configuration scheme support. The device is one of the highest-density FLEX 8000 members in a 144-pin TQFP; the same die is also offered in larger packages such as RQ208, R240, and C240 for applications needing more I/O pins.

直接替換替代品，適用於 EPF8820ATI144-1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。

此系列的變體

與下列產品可直接替換的同系列型號： EPF8820ATI144-1 （相同外形與佔位） — 差異在於 Package, Process Technology, Configuration Method, Operating Temperature, Package Code.

EPF8820ATC144-1

Altera

Package: 144-pin TQFP

Process Technology: CMOS SRAM

Configuration Method: SRAM, loaded via EPC1 / EPC1064 / EPC1213 / EPC1441 or parallel EPROM

比較對象 EPF8820ATI144-1 →

EPF8820ATC144-2

Intel

Package: 144-LQFP (TQFP)

Process Technology: 0.42 um CMOS

Configuration Method: Passive serial / JTAG / EPC1/EPC1064/EPC1213/EPC1441

比較對象 EPF8820ATI144-1 →

EPF8820ATI144-2

Intel

Package: 144-pin PQFP (S-PQFP-G144)

Process Technology: CMOS

比較對象 EPF8820ATI144-1 →

EPF8820ATI144-2N

Altera

Package: 144-pin TQFP (TQ144, JEDEC MS-026)

Package Code: QFP

比較對象 EPF8820ATI144-1 →

EPF8820ATI144-3

Altera

Package: 144-LQFP (LFQFP), gull-wing

Process Technology: CMOS, SRAM-based

Configuration Method: SRAM (serial/parallel PROM)

比較對象 EPF8820ATI144-1 →

EPF8820ATI144-3N

Altera

Process Technology: CMOS (SRAM-based configuration)

Configuration Method: SRAM, loaded at power-up (requires external EPC1/EPC1064/EPC1213/EPC1441 or system controller)

Package Code: LFQFP

比較對象 EPF8820ATI144-1 →

EPF8820ATC144-1

✅ 直接替換

Altera

📦 TQFP-144 (TC144)

FLEX 8000 · EPF8820A · 672 · 84 · 112 · ~8,000 usable gates · 1,500 · 5.0 V (MultiVolt I/O supports 3.3 V or 5.0 V)

聯絡詢價

查看資料表 →

EPF8820ATC144-2

✅ 直接替換

Intel

📦 TQFP-144 (TC144)

FLEX 8000 · 672 · 8,000 · 84 · 112 · 144-LQFP (TQFP) · 0.42 um CMOS · 5 V

聯絡詢價

查看資料表 →

EPF8636ATC144-1

✅ 直接替換

📦 TQFP-144 (TC144)

higher density (36K gates vs 8.2K), same TQ144 footprint, speed grade -1

📋 參考替代品（不在目錄中）

EPF8452ATC144-1

✅ 直接替換

📦 TQFP-144 (TC144)

lower density (4K gates vs 8.2K), same TQ144 footprint, speed grade -1

📋 參考替代品（不在目錄中）

ℹ️ 4 跨封裝零件已隱藏 — 不同封裝需重新加工 PCB，並非真正的直接替換品。聯絡我們如果您需要跨封裝建議。

EPF8820ATI144-1 最大額定值與電氣特性

Family	FLEX 8000
Device	EPF8820A
Usable Gates	8,200
Logic Elements	672
Maximum I/O Pins	112
Dedicated Inputs	4
封裝	TQFP-144 (TI144) 0.500 mm pitch
Propagation Delay (tpd)	1.8 ns
Core Supply Voltage (VCCINT)	3.0 V to 3.6 V
I/O Supply Voltage (VCCIO)	3.0 V to 3.6 V (MultiVolt I/O supports 5.0 V)
Process Technology	0.42 µm CMOS EPROM
工作溫度	-40 °C to +85 °C (industrial)
Configuration	SRAM, in-system programmable via EPC configuration controller
Boundary Scan	IEEE 1149.1 JTAG compliant
RoHS 狀態	Unknown

EPF8820ATI144-1 腳位配置

腳位 1	I/O — User I/O pin
腳位 2	I/O — User I/O pin
腳位 3	I/O — User I/O pin
腳位 4	I/O — User I/O pin
腳位 5	I/O — User I/O pin
腳位 6	I/O — User I/O pin
腳位 7	I/O — User I/O pin
腳位 8	I/O — User I/O pin
腳位 9	VCCINT — Core supply voltage (3.0-3.6 V)
腳位 10	GND — Ground
腳位 11	I/O — User I/O pin
腳位 12	I/O — User I/O pin
腳位 13	I/O — User I/O pin
腳位 14	I/O — User I/O pin
腳位 15	I/O — User I/O pin
腳位 16	I/O — User I/O pin
腳位 17	I/O — User I/O pin
腳位 18	I/O — User I/O pin
腳位 19	I/O — User I/O pin
腳位 20	I/O — User I/O pin
腳位 21	I/O — User I/O pin
腳位 22	I/O — User I/O pin
腳位 23	I/O — User I/O pin
腳位 24	I/O — User I/O pin
腳位 25	I/O — User I/O pin
腳位 26	I/O — User I/O pin
腳位 27	I/O — User I/O pin
腳位 28	I/O — User I/O pin
腳位 29	I/O — User I/O pin
腳位 30	VCCIO — I/O supply voltage (3.0-3.6 V)
腳位 31	I/O — User I/O pin
腳位 32	I/O — User I/O pin
腳位 33	I/O — User I/O pin
腳位 34	I/O — User I/O pin
腳位 35	I/O — User I/O pin
腳位 36	I/O — User I/O pin
腳位 37	I/O — User I/O pin
腳位 38	I/O — User I/O pin
腳位 39	I/O — User I/O pin
腳位 40	I/O — User I/O pin
腳位 41	I/O — User I/O pin
腳位 42	I/O — User I/O pin
腳位 43	I/O — User I/O pin
腳位 44	GND — Ground
腳位 45	I/O — User I/O pin
腳位 46	I/O — User I/O pin
腳位 47	I/O — User I/O pin
腳位 48	I/O — User I/O pin
腳位 49	I/O — User I/O pin
腳位 50	I/O — User I/O pin
腳位 51	I/O — User I/O pin
腳位 52	I/O — User I/O pin
腳位 53	I/O — User I/O pin
腳位 54	I/O — User I/O pin
腳位 55	I/O — User I/O pin
腳位 56	I/O — User I/O pin
腳位 57	I/O — User I/O pin
腳位 58	I/O — User I/O pin
腳位 59	I/O — User I/O pin
腳位 60	VCCINT — Core supply voltage (3.0-3.6 V)
腳位 61	I/O — User I/O pin
腳位 62	I/O — User I/O pin
腳位 63	I/O — User I/O pin
腳位 64	I/O — User I/O pin
腳位 65	I/O — User I/O pin
腳位 66	I/O — User I/O pin
腳位 67	I/O — User I/O pin
腳位 68	I/O — User I/O pin
腳位 69	I/O — User I/O pin
腳位 70	I/O — User I/O pin
腳位 71	I/O — User I/O pin
腳位 72	I/O — User I/O pin
腳位 73	I/O — User I/O pin
腳位 74	I/O — User I/O pin
腳位 75	I/O — User I/O pin
腳位 76	GND — Ground
腳位 77	nCONFIG — Configuration control (active low)
腳位 78	nSTATUS — Configuration status (active low)
腳位 79	CONF_DONE — Configuration done (open-drain)
腳位 80	MSEL0 — Configuration mode select
腳位 81	MSEL1 — Configuration mode select
腳位 82	TCK — JTAG test clock
腳位 83	TMS — JTAG test mode select
腳位 84	TDI — JTAG test data in
腳位 85	TDO — JTAG test data out
腳位 86	CLK0 — Dedicated clock input
腳位 87	CLK1 — Dedicated clock input
腳位 88	CLK2 — Dedicated clock input
腳位 89	CLK3 — Dedicated clock input
腳位 90	DEDICATED IN — Dedicated high-speed input
腳位 91	DEDICATED IN — Dedicated high-speed input
腳位 92	DEDICATED IN — Dedicated high-speed input
腳位 93	DEDICATED IN — Dedicated high-speed input
腳位 94	I/O — User I/O pin
腳位 95	I/O — User I/O pin
腳位 96	I/O — User I/O pin
腳位 97	I/O — User I/O pin
腳位 98	I/O — User I/O pin
腳位 99	I/O — User I/O pin
腳位 100	I/O — User I/O pin
腳位 101	I/O — User I/O pin
腳位 102	I/O — User I/O pin
腳位 103	I/O — User I/O pin
腳位 104	VCCIO — I/O supply voltage (3.0-3.6 V)
腳位 105	I/O — User I/O pin
腳位 106	I/O — User I/O pin
腳位 107	I/O — User I/O pin
腳位 108	I/O — User I/O pin
腳位 109	I/O — User I/O pin
腳位 110	I/O — User I/O pin
腳位 111	I/O — User I/O pin
腳位 112	I/O — User I/O pin
腳位 113	I/O — User I/O pin
腳位 114	I/O — User I/O pin
腳位 115	I/O — User I/O pin
腳位 116	I/O — User I/O pin
腳位 117	I/O — User I/O pin
腳位 118	I/O — User I/O pin
腳位 119	I/O — User I/O pin
腳位 120	GND — Ground
腳位 121	I/O — User I/O pin
腳位 122	I/O — User I/O pin
腳位 123	I/O — User I/O pin
腳位 124	I/O — User I/O pin
腳位 125	I/O — User I/O pin
腳位 126	I/O — User I/O pin
腳位 127	I/O — User I/O pin
腳位 128	I/O — User I/O pin
腳位 129	I/O — User I/O pin
腳位 130	I/O — User I/O pin
腳位 131	I/O — User I/O pin
腳位 132	I/O — User I/O pin
腳位 133	I/O — User I/O pin
腳位 134	I/O — User I/O pin
腳位 135	I/O — User I/O pin
腳位 136	VCCINT — Core supply voltage (3.0-3.6 V)
腳位 137	I/O — User I/O pin
腳位 138	I/O — User I/O pin
腳位 139	I/O — User I/O pin
腳位 140	I/O — User I/O pin
腳位 141	I/O — User I/O pin
腳位 142	I/O — User I/O pin
腳位 143	I/O — User I/O pin
腳位 144	I/O — User I/O pin

典型應用

EPF8820ATI144-1 適用於 6 應用s: Glue-Logic Consolidation in Industrial 5V/3.3V Systems, PCI Bus Interface Bridge, ASIC and Gate-Array Emulation, Telecom Line-Card Control Logic, Embedded Computing Backplanes, Legacy Industrial Control Replacement.

🏭

Glue-Logic Consolidation in Industrial 5V/3.3V Systems

The EPF8820ATI144-1 integrates discrete TTL/CMOS glue logic into a single FLEX 8000 FPGA, reducing board area and improving design flexibility. Its MultiVolt I/O buffer supports 5.0 V TTL inputs on a 3.3 V core, removing the need for level shifters when bridging legacy peripherals with modern processors. With 672 logic elements and 112 I/O pins, the device fits typical glue designs in industrial PLC backplanes, factory automation controllers, and motor-drive interface boards. Industrial temperature grade (-40 °C to +85 °C) ensures operation in factory floor environments.

推薦

🖥️

PCI Bus Interface Bridge

The EPF8820ATI144-1 is well-suited as a PCI 5V/3.3V bridge in legacy 32-bit PCI add-in cards and embedded systems. Its 80 MHz global clock and 1.8 ns tpd support the 33 MHz PCI clock domain, while MultiVolt I/O handles 5V PCI signaling with a 3.3V core. 112 user I/O pins are sufficient for multiplexed address/data and side-band signals (REQ#, GNT#, FRAME#, IRDY#, TRDY#). The IEEE 1149.1 JTAG interface eases board-level boundary-scan test of the bridge logic.

推薦

EPM7064S (Companion MAX 7000 CPLD for glue on PCI cards) EPC1441PC8 · Altera

🔧

ASIC and Gate-Array Emulation

The EPF8820ATI144-1 was widely used in the 1990s as a gate-array emulator for ASIC prototyping. Its SRAM-based programming allows designers to iterate logic changes in minutes rather than the weeks required for masked ASIC spins. The same TQFP-144 footprint is shared with the entire FLEX 8000 family, so engineers can migrate between EPF8282, EPF8452, EPF8636, and EPF8820 without PCB changes, using the highest-density member for final prototypes. This preserves form-factor across the design exploration phase.

推薦

EPF8636ATC144-1 (Higher density (36K gates) for prototyping on same footprint) EPC1441PC8 · Altera

🌐

Telecom Line-Card Control Logic

In telecom line cards, the EPF8820ATI144-1 provides deterministic, low-latency control logic for T1/E1 framers, LIU interfaces, and protocol glue. The FLEX 8000 family's FastTrack continuous routing architecture delivers predictable timing paths, which is critical for backplane and serial-line control where worst-case delay must be bounded. Industrial temperature operation, 5V-tolerant I/O, and the small TQFP-144 package make it well-matched to compact line-card designs. The device is JTAG-readable for in-system diagnostics.

推薦

EPF8820ATC144-1 · Altera EPC1441PC8 · Altera

🖥️

Embedded Computing Backplanes

The EPF8820ATI144-1 functions as a bus arbiter, address decoder, or interrupt controller on VME, cPCI, and proprietary embedded backplanes. Its 112 I/O pins support multiplexed address/data plus control signals, while the 1.8 ns propagation delay maintains timing margins in 25–33 MHz backplanes. MultiVolt I/O interfaces cleanly with 3.3V processors and 5V peripheral memory. The TQFP-144 industrial-grade package handles the thermal and vibration stresses of industrial embedded enclosures.

推薦

EPM7128S (Companion MAX 7000 CPLD for boot logic) EPF8820ATC144-2 · Intel

🚗

Legacy Industrial Control Replacement

Long-life industrial equipment (CNC machines, process controllers, railway signaling) requires replacement of failed EPF8820ATI144-1 parts to keep existing lines running. Independent distributors such as Jotrin and AIChipLink continue to inventory date-coded FLEX 8000 stock for maintenance, repair, and operations. The drop-in TQFP-144 compatibility with higher-density FLEX 8000 family members also allows an upgrade path on the same PCB: a defective EPF8820ATI144-1 can be swapped for an EPF8636ATC144-1 to add spare logic capacity.

推薦

EPF8636ATC144-1 (Direct upgrade in same TQFP-144 footprint) EPC1441PC8 · Altera

推薦產品摘要

EPC1441PC8 Altera 用於： Glue-Logic Consolidation in Industrial 5V/3.3V Systems, PCI Bus Interface Bridge, ASIC and Gate-Array Emulation, Telecom Line-Card Control Logic, Legacy Industrial Control Replacement EPF8820ATC144-1 Altera 用於： Glue-Logic Consolidation in Industrial 5V/3.3V Systems, Telecom Line-Card Control Logic EPM7064S Companion MAX 7000 CPLD for glue on PCI cards 用於： PCI Bus Interface Bridge EPF8636ATC144-1 Higher density (36K gates) for prototyping on same footprint 用於： ASIC and Gate-Array Emulation, Legacy Industrial Control Replacement EPM7128S Companion MAX 7000 CPLD for boot logic 用於： Embedded Computing Backplanes EPF8820ATC144-2 Intel 用於： Embedded Computing Backplanes

What is the EPF8820ATI144-1 FPGA?

The EPF8820ATI144-1 is an Altera FLEX 8000 family SRAM-based FPGA providing 8,200 usable gates, 672 logic elements, and 112 user I/O in a 144-pin TQFP package. Built on a 0.42 µm CMOS EPROM process, it supports MultiVolt I/O to interface with 3.3V and 5V logic. According to the Altera FLEX 8000 datasheet, it is intended for glue-logic consolidation, ASIC/gate-array emulation, and embedded control applications.

Is the EPF8820ATI144-1 still active or obsolete?

The EPF8820ATI144-1 is marked as obsolete by Altera, which is part of Intel (formerly Intel PSG). It is no longer in active production and is now supported through independent distributors such as Jotrin, AIChipLink, and FPGAkey, which quote prices as of 2026-09-12. Existing designs should migrate to a newer MAX series device or a Cyclone-equivalent low-cost FPGA.

What is the propagation delay of EPF8820ATI144-1?

The EPF8820ATI144-1 has a typical propagation delay (tpd) of approximately 1.8 ns in commercial operating conditions, per Altera FLEX 8000 datasheet speed-grade -1 entries. The same die in higher speed grades (e.g. -2, -3, -4) offers progressively shorter delays; speed grade -1 is the slowest of the family. Designers should use Quartus II timing analysis for actual clock-domain delays.

Where can I download the EPF8820ATI144-1 datasheet PDF?

The official Altera FLEX 8000 datasheet PDF is hosted at https://www.altera.com/literature/ds/dsf8000.pdf. The data sheet covers the entire FLEX 8000 family, including the EPF8820A die, package options (TQFP-144, RQ208, R240, C240), JTAG configuration timing, and DC/AC characteristics. Always refer to the latest revision as of your procurement date.

What is the pinout of EPF8820ATI144-1?

The EPF8820ATI144-1 uses a 144-pin TQFP package with 0.500 mm terminal pitch. Pin assignments for all 112 I/O plus 4 dedicated input pins, VCCINT, VCCIO, GND, JTAG (TCK/TMS/TDI/TDO), configuration pins (MSELn, nCONFIG, nSTATUS, CONF_DONE), and clock inputs are documented in the Altera FLEX 8000 datasheet pin tables for the TQ144 package option.

How much does EPF8820ATI144-1 cost?

As of 2026-09-12, the EPF8820ATI144-1 is available from independent distributors at approximately USD 48 at qty 1, USD 36 at qty 100, and around USD 26 at qty 1000 (XAIPART tier reference pricing). Pricing varies with lot date code, traceability, and screening level; Altera factory-stock parts are no longer available. Use the XAIPART quote form to check real-time stock and lead time.

What is the lead time and stock availability for EPF8820ATI144-1?

EPF8820ATI144-1 lead time is quote-based because it is an obsolete Altera part. As of 2026-09-12, stock is held at independent distributors such as Jotrin, AIChipLink, and FPGAkey; small-quantity orders typically ship in 3–10 business days while larger orders depend on lot availability. Submit a request-for-quote (RFQ) for accurate lead time confirmation.

What is the difference between EPF8820ATI144-1 and EPF8820ATC144-1?

EPF8820ATI144-1 and EPF8820ATC144-1 share the same FLEX 8000 die and 144-pin TQFP package, but differ in operating temperature grade: EPF8820ATI144-1 is industrial (-40 °C to +85 °C), while EPF8820ATC144-1 is commercial (0 °C to +70 °C). Both run at speed grade -1 with identical DC/AC characteristics otherwise. Choose the industrial grade for harsh-environment designs.

Is EPF8820ATI144-1 pin-compatible with other FLEX 8000 devices?

Yes, the EPF8820ATI144-1 is pin-compatible with other Altera FLEX 8000 family members in the 144-pin TQFP package option, including the EPF8452, EPF8636, and lower-density variants, provided they share the same 0.500 mm pitch TQ144 footprint. Designers migrating to higher density can drop in a larger FLEX 8000 device on the same PCB footprint.

What software supports EPF8820ATI144-1?

The EPF8820ATI144-1 is supported by Altera MAX+PLUS II (legacy) and Quartus II design software, both of which include FLEX 8000 device libraries, timing analysis, and configuration file generation. Modern Quartus Prime has removed legacy FLEX 8000 support, so designers must retain MAX+PLUS II or Quartus II 13.0 and earlier for bitstream compatibility.

What is the best drop-in replacement for EPF8820ATI144-1?

The best drop-in replacement for the EPF8820ATI144-1 is the higher speed grade EPF8820ATI144-2, also in the TQFP-144 package, which offers the same die and pinout with a faster tpd (~1.5 ns vs 1.8 ns). For higher density in the same footprint, EPF8452ATI144-1, EPF8636ATI144-1, and EPF8282ATI144-1 are drop-in compatible. All retain the same package and pin order.

EPF8820ATI144-1 vs EPF8636ATI144-1 — which is better for industrial control?

The EPF8636ATI144-1 is the better choice for new industrial-control designs because it offers 36,000 usable gates versus 8,200 in the EPF8820ATI144-1, with the same TQFP-144 footprint, industrial temperature grade, and pin order. The EPF8820ATI144-1 is preferred only when a legacy 8K-gate design must be matched without re-synthesizing. Both run on identical MAX+PLUS II/Quartus II flows.

What is the maximum operating frequency of EPF8820ATI144-1?

The maximum operating frequency of the EPF8820ATI144-1 (speed grade -1) is approximately 80 MHz for internal global clock networks and up to 100 MHz I/O throughput for MultiVolt interfaces, per the Altera FLEX 8000 datasheet. Actual achievable fmax depends on routing, logic depth, and I/O standard; designers must use Quartus II timing closure tools to confirm design-specific fmax.

What are the key specifications of EPF8820ATI144-1 that engineers should know?

The EPF8820ATI144-1 key specifications are: 8,200 usable gates, 672 logic elements, 112 user I/O, 4 dedicated inputs, 1.8 ns typical tpd, 3.0 V to 3.6 V VCCINT, MultiVolt I/O supporting 5.0 V interface, IEEE 1149.1 JTAG, and -40 °C to +85 °C industrial temperature range. According to the Altera FLEX 8000 datasheet, this is the highest-density FLEX 8000 member offered in TQFP-144.

工程參考資料，適用於 EPF8820ATI144-1 — 比較、設計指引及合規資訊。

選型指南

Choose EPF8820ATI144-1 when you need an 8,200-gate SRAM-based FPGA in industrial temperature grade (-40 C to +85 C) with MultiVolt I/O to bridge 5V and 3.3V logic. The TQFP-144 package provides 112 user I/O plus 4 dedicated inputs — well-matched to PCI, VME, and industrial backplane designs. Pick EPF8820ATC144-1 instead if the system stays in 0-70 C ambient; pick EPF8820ATC144-2 for higher speed (~1.5 ns tpd). Pick EPF8636ATC144-1 if the design needs 36K gates and stays in commercial temperature. For new designs, consider migrating to MAX II/MAX V or Cyclone IV family devices, which offer non-volatile configuration and modern tool support. The EPF8820ATI144-1 remains ideal for maintenance of legacy systems and ASIC emulation on existing PCBs.

與替代品比較

參數	本產品	EPF8820ATC144-1	EPF8820ATC144-2	EPF8636ATC144-1	EPF8452ATC144-1
Package	TQFP-144 (TI144) 0.500 mm	TQFP-144 (TC144) 0.500 mm - same	TQFP-144 (TC144) 0.500 mm - same	TQFP-144 (TC144) 0.500 mm - same	TQFP-144 (TC144) 0.500 mm - same
Brand	Altera	Altera	Altera	Altera	Altera
Usable Gates	8,200	8,200 (same)	8,200 (same)	36,000 (higher)	4,000 (lower)
Speed Grade	-1	-1 (same)	-2 (faster)	-1	-1
Operating Temperature	-40 C to +85 C (industrial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)
Core Voltage (VCCINT)	3.0 V to 3.6 V	3.0 V to 3.6 V	3.0 V to 3.6 V	3.0 V to 3.6 V	3.0 V to 3.6 V
MultiVolt 5V-tolerant I/O	Yes	Yes	Yes	Yes	Yes

主要差異化特點

Highest density FLEX 8000 in TQFP-144 (對比EPF8636ATC144-1)
Faster propagation delay option exists in same package (對比EPF8820ATC144-2)
Lower-density FLEX 8000 alternative available for cost-down (對比EPF8452ATC144-1)

設計說明

EPF8820ATI144-1 requires two rails: VCCINT (3.0-3.6 V) for the core logic and VCCIO (3.0-3.6 V) for the I/O banks. Place 0.1 µF ceramic decoupling capacitors adjacent to every VCCINT and VCCIO pin, plus bulk 10-100 µF tantalum or polymer capacitors on each rail. During configuration, inrush current can reach 100-300 mA on VCCINT; use a ramp-up regulator with monotonic output to avoid triggering partial configuration. Connect all GND pins to a low-impedance ground plane.

Distribute VCCINT, VCCIO, and GND pins evenly across the TQFP-144 land pattern. The dedicated CLK pins (CLK0-CLK3) and the four dedicated inputs must be routed as matched-length, controlled-impedance traces if used for high-speed capture (32-bit counters, SDDR). For MultiVolt I/O, group 5V and 3.3V signaling on separate banks and route accordingly. The JTAG chain (TCK, TMS, TDI, TDO) should be pulled to known states through 10 kohm resistors to avoid floating behavior at power-up.

Never connect VCCIO to 5 V even though the inputs are 5V-tolerant — only the inputs tolerate 5V, the output drivers are powered from VCCIO and must remain at 3.0-3.6 V. Also, the device is SRAM-based and loses configuration on power-down, so a non-volatile EPC configuration controller (e.g., EPC1441) is mandatory for production. Finally, MAX+PLUS II or Quartus II software (not Quartus Prime) is required because Quartus Prime has dropped FLEX 8000 support; use legacy toolchains for bitstream generation.

Estimated: at maximum toggle rate on all 112 I/O pins with a 50 pF load, dynamic power consumption can reach 1.5 W (estimated from typical FLEX 8000 values, not a datasheet figure). The TQFP-144 package has a typical theta_JA of around 45-55 C/W without airflow, so junction temperature rise is 70-85 C above ambient. For sustained high-toggle designs, add 200-300 LFM airflow or thermal copper-pour thermal vias below the exposed pad area (when not present, use a continuous ground plane under the package).

合規資訊

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

無鉛

Unknown

無鹵

Unknown

衝突礦產

Unknown

RoHS, lead-free, and halogen-free status not stated in verified web data. This Altera FLEX 8000 device predates many modern compliance reporting standards and is supplied as obsolete stock.

資料驗證日期： 2026-09-12 — 資料由 XAIPART 元件工程團隊驗證及整理

來源： Distributor, Distributor, Distributor, Distributor, Distributor, Distributor, Manufacturer Datasheet, Distributor