Intel

EP2A40B724C7 - APEX II FPGA 1.5M Gates 540 I/O FCBGA | Intel (Altera)

料号: EP2A40B724C7 ✗ 停产
有现货 1-3 个工作日内发货
1.425 V to 1.575 V (typ. 1.5 V) Vdss LVTTL, LVCMOS, 1.5 V/1.8 V/2.5 V/3.3 V, SSTL, HSTL, PCI, LVDS, LVPECL, PCML, HyperTransport, True-LVDS (1 Gbps) Rds(on) 724-ball FCBGA (FineLine BGA), 35 mm x 35 mm Package 562 MHz Speed Yes (via ESB / I/O circuitry) Memory
低至 $650 USD / 件
最小起订量: 1 |
价格更新于: 2026-09-07
批量定价
数量 单价 小计
1 $815.12 $815.12
10 $780 $7,800.00
25 $745.5 $18,637.50
100 $698 $69,800.00
250 $650 $162,500.00
ℹ️ 所有价格均以 USD 计价

EP2A40B724C7 概述

The Intel (formerly Altera) EP2A40B724C7 is a member of the APEX II Field-Programmable Gate Array (FPGA) family fabricated on a 0.15 µm all-layer copper process with up to eight metal layers, integrating 1,500,000 system gates, 38,400 logic elements, and 655,360 bits of embedded RAM. Housed in a 724-ball FineLine BGA (FCBGA) package measuring 35 mm x 35 mm, the device delivers 540 user I/O pins and supports 1 Gbps True-LVDS, LVPECL, PCML, and HyperTransport I/O standards for high-speed interconnect.

An FPGA (Field-Programmable Gate Array) is a programmable logic device that allows engineers to implement custom digital logic through configuration memory after manufacturing. APEX II sits in the device hierarchy as FPGA -> programmable logic -> logic IC -> integrated circuit, combining Look-Up Table (LUT)-based logic, embedded memory blocks, and high-speed I/O on a single die. APEX II specifically targets high-density, high-bandwidth designs that previously required ASICs or custom gate arrays.

Key features of the EP2A40B724C7 include 562 MHz maximum internal operating frequency, 1.5 V core supply (1.425 V to 1.575 V), built-in PLLs for clock management, MultiVolt I/O supporting 1.5 V, 1.8 V, 2.5 V, and 3.3 V interfaces, and dedicated high-speed True-LVDS channels capable of 1 Gbps data rates. The device also provides 4 PLLs, double-data-rate (DDR) support, and in-system programmability through the IEEE 1149.1 JTAG interface.

The APEX II architecture uses a MultiCore architecture combining fine-grain logic elements (LEs), embedded system blocks (ESBs) usable as either dual-port RAM, ROM, or CAM, and FastTrack interconnect. The 0.15 µm copper process enables higher integration density and lower power-per-gate than the 0.18 µm and 0.25 µm predecessors such as APEX 20K and FLEX 10K families.

Typical applications include telecommunications line cards and baseband processing, high-speed serial I/O bridging, network routers and switches, DSP co-processing in test & measurement equipment, and ASIC prototyping. The 540 user I/O count makes it suitable for parallel bus-centric designs such as processor interfaces, memory controllers, and legacy industrial backplanes.

When designing with this device, ensure 1.5 V core decoupling uses low-ESR ceramic capacitors placed within 5 mm of each power pin. The 1.5 V supply must be ramped monotonically to prevent in-rush currents. Configuration via JTAG or passive serial configuration PROM (EPC family) should be validated on the bench before mass production.

This page synthesizes distributor pricing, drop-in compatible APEX II variants, and practical design notes for the EP2A40B724C7 - information not consolidated on any single distributor page.

直接替换替代料: EP2A40B724C7 ——相同封装,引脚兼容。需要 PCB 改动的不同封装料号已排除。

本系列中的变体

可与以下型号直接替换的同系列型号: EP2A40B724C7 (相同外形与封装尺寸) ——差异在于 Package, Process Technology, Operating Temperature, System Gates, Maximum Internal Frequency.

Altera
Package: 724-BBGA, FCBGA (35 mm x 35 mm)
Process Technology: 0.15 um all-layer copper
Operating Temperature: 0 C to 85 C (TJ)
对比 EP2A40B724C7 →
Intel
Package: 724-pin FCBGA (flip-chip BGA)
Process Technology: 0.15 µm all-layer copper, up to 8 metal layers
System Gates: 600,000
对比 EP2A40B724C7 →
Intel
Package: 724-ball FCBGA (Fine-pitch Chip-Scale BGA)
Process Technology: 0.15 µm all-layer copper (up to 8 metal layers)
Operating Temperature: Commercial (0 °C to +85 °C)
对比 EP2A40B724C7 →
Intel
Package: 724-BBGA, FCBGA
Process Technology: 0.15 µm all-layer copper, up to 8 metal layers
Operating Temperature: Commercial (0C to +85C)
对比 EP2A40B724C7 →
Altera
Package: 724-BBGA / FCBGA (35 mm × 35 mm)
Process Technology: 0.15 µm CMOS
System Gates: 900,000
对比 EP2A40B724C7 →
Altera
Package: 724-ball FineLine BGA
对比 EP2A40B724C7 →
Intel
Package: 724-ball FCBGA
Process Technology: 0.15 µm
System Gates: 1,500,000 (1.5M)
对比 EP2A40B724C7 →
Intel
Package: 724-pin FCBGA (PBGA)
Process Technology: 0.15 um CMOS
System Gates: 1.5 M
对比 EP2A40B724C7 →
Intel
Process Technology: 0.15 µm CMOS, all-layer copper, up to 8 metal layers
Operating Temperature: 0 °C to 85 °C (TJ)
Maximum Internal Frequency: 376 MHz
对比 EP2A40B724C7 →
Intel
Package: 724-BBGA / FCBGA
对比 EP2A40B724C7 →
Altera
Process Technology: 0.15 um CMOS
System Gates: 1.5 M
对比 EP2A40B724C7 →
Altera
Operating Temperature: 0C to +85C
对比 EP2A40B724C7 →

快速对比工具——选择替代料号进行并排对比:

EP2A25B724C7

✅ 直接替换
Altera
📦 724-ball FCBGA (35x35)
APEX II · 24,320 · 900,000 · 540 · 500 MHz · -7 · 0.15 µm CMOS · 1.425 V to 1.575 V (1.5 V nominal)

✓ 有现货

$760 / 个

查看数据手册 →

EP2A25F724

✅ 直接替换 ⚠️ 规格未核验
Altera
📦 724-ball FCBGA (35x35)
Enhanced Configuration Device (EPC) · Altera APEX II (EP2A-series) · Flash (non-volatile, no battery required) · Passive Serial, Passive Parallel Async, Passive Parallel Sync · 724-ball FineLine BGA · IEEE Std. 1149.1 (boundary-scan / ISP) · Yes - supports daisy-chained APEX II FPGAs · Yes (via JTAG)

✓ 有现货

$112 / 个

查看数据手册 →

EP2A25B724-C7

✅ 直接替换 ⚠️ 规格未核验
Intel
📦 724-ball FCBGA (35x35)
APEX II · EP2A25 · 622,592 · 24,320 · 540 · 724-BBGA, FCBGA · 0.15 µm all-layer copper, up to 8 metal layers · 1.5 V

✓ 有现货

$195 / 个

查看数据手册 →

EP2A15B724C7

✅ 直接替换 ⚠️ 规格未核验
Altera
📦 724-ball FCBGA (35x35)
APEX II · Altera (acquired by Intel) · 600,000 · 16,640 · 425,984 · 492 · 1.425 V to 1.575 V · 0 C to 85 C (TJ)

✓ 有现货

$125 / 个

查看数据手册 →

EP2A15B724C9

✅ 直接替换 ⚠️ 规格未核验
Intel
📦 724-ball FCBGA (35x35)
APEX II · APEX II (EP2A15) · 16640 · 600000 · 425984 · 492 · 1.5 V · 1.5 V / 1.8 V / 2.5 V / 3.3 V (MultiVolt I/O)

✓ 有现货

$268.5 / 个

查看数据手册 →

EP2A15B724C8

✅ 直接替换 ⚠️ 规格未核验
Intel
📦 724-ball FCBGA (35x35)
APEX II · Intel (formerly Altera) · 16,640 · 600,000 · 425,984 · 492 · 435 MHz · 1.94 ns

✓ 有现货

$185 / 个

查看数据手册 →

EP2A40B724C7 最大额定值与电气特性

Family APEX II
Logic Elements / Cells 38,400
Total System Gates 1,500,000
Embedded RAM Bits 655,360
Maximum User I/O 540
Core Supply Voltage 1.425 V to 1.575 V (typ. 1.5 V)
Process Technology 0.15 µm CMOS, up to 8 metal layers, all-layer copper
Maximum Internal Frequency 562 MHz
PLLs 4
封装 724-ball FCBGA (FineLine BGA), 35 mm x 35 mm
工作温度 0 °C to +85 °C (commercial)
I/O Standards Supported LVTTL, LVCMOS, 1.5 V/1.8 V/2.5 V/3.3 V, SSTL, HSTL, PCI, LVDS, LVPECL, PCML, HyperTransport, True-LVDS (1 Gbps)
Configuration Method JTAG (IEEE 1149.1), Passive Serial, Passive Parallel, Active Serial via EPC configuration devices
MultiVolt I/O Support 1.5 V, 1.8 V, 2.5 V, 3.3 V
DDR Memory Support Yes (via ESB / I/O circuitry)
RoHS 状态 Non-compliant (lead-bearing FCBGA)
安装类型 Surface Mount (BGA)

EP2A40B724C7 724-ball fcbga (fineline bga), 35 mm x 35 mm 引脚配置指南

EP2A40B724C7(724-ball fcbga (fineline bga), 35 mm x 35 mm 封装)的引脚配置。 该数字 IC 包含 GPIO、通信接口(UART、SPI、I2C)和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。

EP2A40B724C7 的 724-ball fcbga (fineline bga), 35 mm x 35 mm 封装引脚图

暂无详细引脚数据: EP2A40B724C7.

请参阅 数据手册 以查看完整引脚配置。

典型应用

EP2A40B724C7 适用于 6 应用s: Telecommunications Line Cards, High-Speed Serial I/O Bridging, ASIC Prototyping and Emulation, DSP Co-Processing, Industrial Control and Factory Automation, Legacy Test & Measurement Equipment.

🌐

Telecommunications Line Cards

The EP2A40B724C7's 38,400 logic elements and 540 user I/O pins make it well-suited for legacy telecommunications line card designs that aggregate multiple E1/T1 or Ethernet interfaces. The 655,360 bits of embedded RAM allow on-chip buffering of packet payloads, while the four PLLs provide independent clock domains for line-rate serializers. Designers use the APEX II LUT-based fabric to implement TDM framers, HDLC controllers, and protocol converters without external glue logic, with 1 Gbps True-LVDS I/O enabling direct connection to high-speed SERDES. The 1.5 V core and MultiVolt I/O simplify mixed-voltage interfacing with 3.3 V and 2.5 V bus interfaces common in telecom backplanes.

🌐

High-Speed Serial I/O Bridging

With 1 Gbps True-LVDS, LVPECL, PCML, and HyperTransport I/O support, the EP2A40B724C7 functions as a multi-protocol bridge between legacy parallel buses and high-speed serial links. Its 562 MHz internal fabric can sustain serialization/deserialization at gigabit line rates while running protocol state machines, CRC engines, and link training logic in the LUT fabric. The 655 Kb of embedded RAM buffers protocol headers and payloads, and the four PLLs generate the required bit-clock, word-clock, and oversampled clocks for clock-data recovery. This makes the device suitable for proprietary backplane bridges, switch fabric interfaces, and ASIC prototyping where multiple serial protocols converge.

🖥️

ASIC Prototyping and Emulation

The 1.5 million system gates and 38,400 logic elements provide enough capacity to prototype mid-complexity ASIC designs (typically up to 500k ASIC gates) at near-real-time speeds. Engineers map ASIC RTL into the APEX II LUT fabric, leverage embedded system blocks (ESBs) for dual-port RAM and ROM, and use the 540 I/O pins to fan out to external peripherals that mimic the final ASIC environment. The 1.5 V core and high-speed I/O enable direct co-simulation with ASIC verification testbenches. Quartus II provides incremental compile and SignalTap logic analyzer support, accelerating iterative debug cycles for ASIC sign-off.

🖥️

DSP Co-Processing

The EP2A40B724C7 can co-process DSP algorithms in parallel with a host CPU or DSP chip, accelerating FIR filters, FFTs, and image-processing kernels. The 655 Kb of embedded RAM serves as coefficient storage and data buffers, while the 38,400 logic elements implement wide datapaths with high gate utilization. The four PLLs enable multiple clock domains for sample-rate conversion and oversampling. The MultiVolt I/O connects seamlessly to 3.3 V DSP peripherals, and the 540 I/O count supports wide parallel interfaces to external SRAM or SDRAM banks used as scratch memory.

🏭

Industrial Control and Factory Automation

Industrial control systems benefit from the EP2A40B724C7's high I/O count and embedded memory for handling multiple sensor inputs, motor control loops, and communication protocols simultaneously. The 0 °C to 85 °C commercial temperature range suits factory-floor enclosures. The 540 I/O pins interface with parallel sensor arrays, encoder inputs, and PWM outputs, while the LUT fabric implements PLC-style ladder logic, PID controllers, and fieldbus protocol stacks. The 1.5 V core and selectable I/O voltages connect to legacy 5 V-tolerant peripherals through proper bank voltage selection.

🖥️

Legacy Test & Measurement Equipment

Test and measurement instruments such as logic analyzers, protocol testers, and signal generators use the EP2A40B724C7 to capture and process high-speed data streams. Its 562 MHz internal frequency and 1 Gbps LVDS I/O enable real-time pattern generation and acquisition, while the 655 Kb of embedded RAM buffers sample data before offloading to host processors. The four PLLs synchronize sample clocks with trigger sources, and the 540 user I/Os connect to multiple parallel probe channels. Quartus II SignalTap integration provides on-chip logic analyzer capability for hardware debug.

推荐产品汇总

EP2A25B724C7 Altera 用于: Telecommunications Line Cards EPC16 Altera configuration PROM for JTAG serial config 用于: Telecommunications Line Cards, ASIC Prototyping and Emulation, Legacy Test & Measurement Equipment EP2A40B652C9 Intel 用于: High-Speed Serial I/O Bridging EPC2 Configuration device for passive serial mode 用于: High-Speed Serial I/O Bridging, Industrial Control and Factory Automation EP2A40B652C7 Intel 用于: ASIC Prototyping and Emulation EP2A25F672I7 Intel 用于: DSP Co-Processing EPC4 Configuration PROM for larger bitstreams 用于: DSP Co-Processing EP2A25B652C7 Intel 用于: Industrial Control and Factory Automation EP2A40B652C8 Intel 用于: Legacy Test & Measurement Equipment
What is the EP2A40B724C7?
The EP2A40B724C7 is an Intel (formerly Altera) APEX II family Field-Programmable Gate Array (FPGA) integrating 1.5 million system gates, 38,400 logic elements, 655,360 bits of embedded RAM, and 540 user I/Os. It is housed in a 724-ball FineLine BGA package. According to the APEX II datasheet, the device is fabricated on a 0.15 µm all-layer copper process and supports 1 Gbps True-LVDS signaling.
How much does the EP2A40B724C7 cost?
The EP2A40B724C7 lists at $815.12 USD per unit at qty 1 as of 2026-09-08, based on Rochester Electronics / Avnet distributor pricing surfaced on DigiKey Marketplace. Volume pricing typically falls to the $650-$700 range at qty 100-250. Because the part is obsolete, prices fluctuate sharply with remaining distributor stock and may include traceability documentation surcharges.
Is the EP2A40B724C7 still in production?
No, the EP2A40B724C7 is obsolete. The APEX II family was discontinued by Altera (later acquired by Intel) more than a decade ago, and current production does not exist. Remaining stock is supplied by authorized aftermarket distributors such as Rochester Electronics, Avnet, and specialty brokers. Lead times for large orders can exceed 12 weeks and depend on lot availability.
Where can I buy the EP2A40B724C7 online?
The EP2A40B724C7 can be sourced online through authorized aftermarket distributors including Rochester Electronics (listed on DigiKey Marketplace), Avnet, and specialty FPGA brokers such as Ampheo and FPGAX. As of 2026-09-08, stock sightings of 39-97 pieces are reported by secondary distributors. Always request traceability documentation (date code, lot, country of origin) when sourcing obsolete FPGAs.
What is the lead time for EP2A40B724C7?
Lead time for the EP2A40B724C7 is highly variable because it is obsolete. Small qty (<50 pieces) typically ships in 1-3 weeks from aftermarket stock. Larger orders (100+ pieces) require 6-16 weeks and depend on bonded inventory or wafer/die buys. According to distributor listings as of 2026-09-08, the Rochester Electronics and Avnet offerings do not carry firm lead-time guarantees.
Where can I download the EP2A40B724C7 datasheet PDF?
The original Altera APEX II datasheet is hosted as a PDF on legacy Altera / Intel FPGA documentation pages. The datasheet URL is https://www.altera.com/literature/ds/apex2_datasheet.pdf, which covers the entire APEX II family including EP2A40 logic densities, electrical characteristics, pinout, and configuration details. Mirror copies are available on third-party datasheet archives such as Datasheets.com and DigChip.
What is the pinout of the EP2A40B724C7 FCBGA?
The EP2A40B724C7 uses a 724-ball FineLine BGA (FCBGA) package in a 35 mm x 35 mm body. Pinout is documented in the APEX II datasheet pin tables: balls are arranged in a grid with column letters (A, B, C ... AA) and row numbers (1, 2, 3 ... AA). Each pin may carry user I/O, configuration, JTAG (TCK/TMS/TDO/TDI), power (VCCINT 1.5 V, VCCIO), or GND functions. A pin-mux / pinout viewer is provided in the Altera Quartus II design software for the APEX II device family.
What is the difference between EP2A40B724C7 and EP2A40F672C7?
Both parts are APEX II family EP2A40 density FPGAs with 38,400 logic elements and 1.5M gates. The key differences are package and I/O count: the EP2A40B724C7 uses a 724-ball FCBGA package with 540 user I/Os, while the EP2A40F672C7 uses a 672-pin BGA package with fewer user I/Os (typically 503). They are not drop-in compatible because of the different BGA footprints, but the silicon die is identical and they can be substituted with PCB rework.
Can the EP2A40B724C7 be replaced by an EP2A40F1020C8?
The EP2A40F1020C8 is a higher-pin-count 1020-ball BGA variant of the same APEX II EP2A40 silicon, offering more I/O bandwidth. It is NOT a drop-in replacement for the EP2A40B724C7 because the BGA ball pattern and footprint differ (724-ball vs 1020-ball, different body size). Migration requires a PCB redesign, although the Quartus II place-and-route database is reused.
What is a drop-in replacement for the EP2A40B724C7?
A true drop-in replacement for the EP2A40B724C7 must share the same 724-ball FCBGA footprint and be electrically compatible. The EP2A25B724C7 (lower-density APEX II with 25,000 logic elements in the same 724-ball FCBGA package) is a pin-compatible drop-in for designs that do not require the full EP2A40 logic density. For designs needing full density, only the same silicon lot / date code from authorized stock provides a true replacement.
What is the operating voltage of EP2A40B724C7?
The EP2A40B724C7 core operates at 1.5 V nominal (1.425 V to 1.575 V). The MultiVolt I/O banks support 1.5 V, 1.8 V, 2.5 V, and 3.3 V signaling and can be configured per bank. According to the APEX II datasheet, mixed-voltage I/O is supported without external level shifters, making the device suitable for bridging 3.3 V peripherals to 1.5 V internal logic.
Does the EP2A40B724C7 support DDR memory interfaces?
Yes, the EP2A40B724C7 supports DDR SDRAM interfaces through its I/O circuitry and embedded system blocks (ESBs). The APEX II family provides dedicated DDR input/output registers on every I/O pin, enabling source-synchronous DDR capture at up to 312 MHz (624 Mbps). Designers typically use the ALTMEMPHY megafunction in Quartus II to instantiate DDR controllers.
What design tools support the EP2A40B724C7?
The EP2A40B724C7 is supported by Altera Quartus II design software (version 13.0 and earlier; Quartus Prime 15.1 added legacy device support but with limited updates). Quartus II provides HDL synthesis (Verilog, VHDL, AHDL), placement and routing, timing analysis (TimeQuest), simulation (ModelSim-Altera), and configuration bitstream generation (SOF/POF/JIC). Third-party synthesis tools such as Synplify and Precision also support APEX II.
Is the EP2A40B724C7 RoHS compliant?
No, the EP2A40B724C7 is not RoHS compliant - it uses a lead-bearing FCBGA package (SnPb or high-Pb solder balls) per the Altera part numbering convention. Altera introduced RoHS-compliant APEX II variants with the 'N' suffix (for example, EP2A40B724C7N). If RoHS compliance is mandatory, source a clearly-marked RoHS version; otherwise a Pb-to-PbGA reflow process is required for assembly.
What is the maximum internal clock frequency of EP2A40B724C7?
The EP2A40B724C7 supports internal operating frequencies up to 562 MHz according to the APEX II datasheet. The exact achievable frequency depends on design utilization, routing congestion, thermal conditions, and which PLLs are used. The four on-chip PLLs provide clock multiplication, division, and phase shifting to drive high-speed logic and I/O clocking domains.

工程参考数据: EP2A40B724C7 ——对比、设计指导和合规信息。

选型指南

Choose the EP2A40B724C7 when the design requires 25,000-38,400 logic elements, 540+ user I/Os, and 655 Kb of embedded RAM in a 724-ball FCBGA footprint. Choose the EP2A25B724C7 if your design fits within 25,000 logic elements (typical cost savings on aftermarket stock). Choose the EP2A40F672C7 (672-ball BGA) only if your PCB is already laid out for the smaller package - the migration saves board area at the cost of 37 fewer I/Os. Avoid the EP2A15B724C7 unless your design is well under 15,800 LEs - it leaves significant logic capacity unused. For modern new designs, consider migrating to a Cyclone IV/V or MAX 10 family for active lifecycle status, RoHS compliance, and lower unit cost.

与替代料对比

参数 本产品 EP2A25B724C7 EP2A25F724 EP2A25B724-C7 EP2A15B724C7 EP2A15B724C9
Package 724-ball FCBGA (35x35) 724-ball FCBGA (35x35) - same 724-ball FCBGA (35x35) - same 724-ball FCBGA (35x35) - same 724-ball FCBGA (35x35) - same 724-ball FCBGA (35x35) - same
Brand Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera)
Logic Elements 38,400 25,000 (-35%) 25,000 (-35%) 25,000 (-35%) 15,800 (-59%) 15,800 (-59%)
Total System Gates 1.5 M 1.0 M (-33%) 1.0 M (-33%) 1.0 M (-33%) 0.6 M (-60%) 0.6 M (-60%)
Embedded RAM Bits 655,360 425,984 (-35%) 425,984 (-35%) 425,984 (-35%) 270,336 (-59%) 270,336 (-59%)
Core Voltage 1.5 V (1.425 V - 1.575 V) 1.5 V (1.425 V - 1.575 V) - same 1.5 V (1.425 V - 1.575 V) - same 1.5 V (1.425 V - 1.575 V) - same 1.5 V (1.425 V - 1.575 V) - same 1.5 V (1.425 V - 1.575 V) - same
Speed Grade C7 (commercial, speed bin 7) C7 - same F speed grade (lower) C7 - same C7 - same C9 (faster)
Operating Temperature 0 °C to 85 °C (commercial) 0 °C to 85 °C - same 0 °C to 85 °C - same 0 °C to 85 °C - same 0 °C to 85 °C - same 0 °C to 85 °C - same
RoHS Status Non-compliant (Pb-bearing BGA) Non-compliant (Pb-bearing BGA) Non-compliant (Pb-bearing BGA) Non-compliant (Pb-bearing BGA) Non-compliant (Pb-bearing BGA) Non-compliant (Pb-bearing BGA)

关键差异点

  • Highest-density APEX II in 724-ball FCBGA package (对比 EP2A25B724C7)
  • Faster C7 speed grade (对比 EP2A25F724)
  • 540 user I/Os vs 503 in 672-ball package variant (对比 EP2A40F672C7)
  • Larger embedded memory (对比 EP2A15B724C7)

设计说明

The EP2A40B724C7 requires a 1.5 V core supply with 1.425 V to 1.575 V tolerance. Place at least four 10 µF X5R ceramic decoupling capacitors within 5 mm of the VCCINT pins, plus 0.1 µF and 1 nF capacitors at every VCC/GND pair. Estimated worst-case core current is 2-3 A depending on design utilization; verify with the Quartus II PowerPlay analyzer before finalizing the power tree. The 1.5 V rail must ramp monotonically to within the operating range in less than 100 ms to prevent in-rush current latch-up.

Although the FCBGA package provides low thermal resistance (estimated θJA ~10-12 °C/W with 4-layer JEDEC PCB), the APEX II EP2A40 can dissipate 5-10 W in fully-utilized high-speed designs. The user I/O bank voltages (VCCIO) generate additional heat proportional to switching activity. Place thermal vias in the BGA land pattern to provide a thermal path to internal copper planes. For industrial applications near the upper temperature limit, consider a heatsink or airflow to keep junction temperature below 125 °C.

The 724-ball FCBGA uses a 1.27 mm ball pitch. All balls are arranged in a staggered array; follow Altera's recommended land pattern exactly and use NSMD (non-solder mask defined) pads for better solder joint reliability. The 35 mm x 35 mm package body requires microvia or stacked-via technology on standard 4-layer PCBs to break out all balls to inner routing layers. Avoid placing vias in the thermal pad pattern to maximize solder joint thermal conductivity.

Common pitfalls with the EP2A40B724C7 include: (1) over-driving the JTAG TCK pin beyond 10 MHz which can corrupt configuration; (2) leaving VCCIO bank pins floating which may cause indeterminate logic levels at power-up; (3) failing to instantiate the nCONFIG, nSTATUS, and CONF_DONE pull-up resistors per the APEX II datasheet, leading to configuration failures; (4) using a non-compliant Pb-free reflow profile on the lead-bearing FCBGA which causes solder joint voids. Always validate configuration with the Quartus II programmer before depopulating the board.

At 1 Gbps True-LVDS data rates, the EP2A40B724C7 requires controlled-impedance differential routing (typically 100 Ω differential) with matched lengths within 5 mils to minimize skew. Use 4-layer or higher PCB stackups with a continuous ground reference plane under high-speed traces. The 540 user I/Os include shared LVDS and LVPECL pairs; assign them carefully in the Quartus II pin planner to avoid adjacent aggressor coupling. Use series AC-coupling capacitors (100 nF) on all 1 Gbps LVDS links per the APEX II Hardware Design Guidelines.

合规信息

RoHS
Non Compliant
REACH
Unknown
AEC-Q100
Not Applicable
无铅
No
无卤
Unknown
冲突矿物
Unknown

Lead-bearing FCBGA package is not RoHS compliant. Altera introduced RoHS variants with the 'N' suffix (e.g. EP2A40B724C7N). Reach, halogen-free, and conflict-minerals data not present in the Verified Web Data and should be obtained from the manufacturer lot documentation if required.

数据核验日期: 2026-09-08 ——数据由 XAIPART 元器件工程团队核验和整理

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