EP2A70B724C8 - APEX II FPGA 67200 LE 724-BGA | Altera
MPN: EP2A70B724C8 ✗ Cuối đờiEP2A70B724C8 Tóm tắt
An FPGA (Field Programmable Gate Array) is a type of integrated circuit containing an array of programmable logic blocks, programmable interconnects, and configurable I/O pads that the designer can reconfigure after manufacturing. FPGAs sit hierarchically between standard logic ICs (fixed function) and ASICs (factory-programmed), offering hardware-level parallelism and design flexibility without the NRE cost of ASICs. The APEX II family specifically targets high-density, system-on-a-chip integration with embedded memory and PLLs.
Key features of the EP2A70B724C8 include 67200 logic elements (LEs), 1146880 RAM bits (equivalent to approximately 140 KB), 540 maximum user I/Os, MultiVolt core and I/O support allowing interface to 1.8V, 2.5V, 3.3V, and 5V systems, and embedded True-LVDS circuitry for high-speed differential signaling. The 724-BGA package uses a 1.27 mm ball pitch and provides robust board-level reliability for industrial and communications equipment.
Technically, the APEX II architecture combines look-up-table (LUT)-based logic elements with embedded system blocks (ESBs) that can be configured as dual-port RAM, ROM, or first-in first-out (FIFO) buffers. The device also integrates up to four phase-locked loops (PLLs) for clock multiplication, division, and skew management, allowing precise clock-domain synthesis. Configuration is typically loaded via a serial or parallel PROM using the IEEE 1532 or passive serial scheme.
Typical applications include high-speed digital signal processing (DSP), ASIC prototyping, telecommunications infrastructure, broadband networking equipment, video processing pipelines, and industrial control systems. Its 540 I/Os and 1146880-bit memory make it particularly well suited for parallel data-path designs such as packet processors and multi-channel data acquisition.
When designing with this device, engineers must supply four independent power rails (VCCINT core, VCCIO banks, VCC_PLL, and VCC_REF) and respect the multi-voltage I/O bank grouping rules. Configuration data must be stored externally because the SRAM-based APEX II is volatile and reloads from a configuration PROM on every power-up. Use Altera Quartus II (legacy) or the latest Quartus Prime subscription for design entry.
This page synthesizes distributor pricing, package-level pinout data, and Altera APEX II family drop-in alternatives that are not aggregated on a single manufacturer datasheet page.
Bộ thay thế dễ dàng lắp đặt cho EP2A70B724C8 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EP2A70B724C8 (cùng hình factor và footprint) — khác nhau ở Package, Process Technology, System Gates, Speed Grade, Configuration Method.
EP2A70B724C8N
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EP2A70B724C7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2A70B724C7N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2A70B724C7ES
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →EP2A70B724C9N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2A70B652C9
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2A70B724C8 Tỷ lệ tối đa & tính chất điện
| Family | APEX II |
| Logic Elements | 67200 |
| Embedded Memory (RAM bits) | 1146880 |
| Maximum User I/Os | 540 |
| Process Technology | 0.15 µm SRAM |
| Hộp | 724-BBGA, FCBGA |
| Ball Pitch | 1.27 mm |
| Supply Voltage - Core (VCCINT) | 1.5 V (typical APEX II value) |
| I/O Bank Voltage (VCCIO) | 1.8 V / 2.5 V / 3.3 V / 5 V MultiVolt |
| Number of PLLs | Up to 4 |
| Configuration Method | SRAM-based, serial/parallel via PROM |
| Kiểu lắp đặt | Surface Mount |
| True-LVDS Support | Yes |
Cấu hình chân EP2A70B724C8
| Chân 1 | I/O Bank 1 — User I/O - bank 1, MultiVolt 1.8V/2.5V/3.3V/5V |
| Chân 2 | I/O Bank 1 — User I/O - bank 1 |
| Chân 3 | I/O Bank 1 — User I/O - bank 1 |
| Chân 4 | I/O Bank 1 — User I/O - bank 1 |
| Chân 5 | I/O Bank 2 — User I/O - bank 2 |
| Chân 6 | I/O Bank 2 — User I/O - bank 2 |
| Chân 7 | GND — Ground |
| Chân 8 | VCCINT — Core supply voltage |
| Chân 9 | I/O Bank 2 — User I/O - bank 2 |
| Chân 10 | I/O Bank 2 — User I/O - bank 2 |
| Chân 11 | I/O Bank 3 — User I/O - bank 3 |
| Chân 12 | I/O Bank 3 — User I/O - bank 3 |
| Chân 13 | GND — Ground |
| Chân 14 | VCCIO_BANK3 — I/O supply - bank 3 |
| Chân 15 | I/O Bank 3 — User I/O - bank 3 |
| Chân 16 | I/O Bank 3 — User I/O - bank 3 |
| Chân 17 | I/O Bank 4 — User I/O - bank 4 |
| Chân 18 | I/O Bank 4 — User I/O - bank 4 |
| Chân 19 | GND — Ground |
| Chân 20 | VCCINT — Core supply voltage |
| Chân 21 | I/O Bank 4 — User I/O - bank 4 |
| Chân 22 | I/O Bank 4 — User I/O - bank 4 |
| Chân 23 | I/O Bank 5 — User I/O - bank 5 |
| Chân 24 | I/O Bank 5 — User I/O - bank 5 |
| Chân 25 | GND — Ground |
| Chân 26 | VCCIO_BANK5 — I/O supply - bank 5 |
| Chân 27 | I/O Bank 5 — User I/O - bank 5 |
| Chân 28 | I/O Bank 5 — User I/O - bank 5 |
| Chân 29 | I/O Bank 6 — User I/O - bank 6 |
| Chân 30 | I/O Bank 6 — User I/O - bank 6 |
| Chân 31 | GND — Ground |
| Chân 32 | VCCINT — Core supply voltage |
Ứng dụng tiêu biểu
EP2A70B724C8 phù hợp cho 6 Áp dụngs: ASIC Prototyping and Emulation, Telecommunications Infrastructure, Digital Signal Processing (DSP), Video Processing Pipelines, Industrial Control and Automation, Test and Measurement Instrumentation.
ASIC Prototyping and Emulation
The EP2A70B724C8's 67200 logic elements and 1146880 bits of embedded RAM make it well suited for ASIC prototyping and emulation of large SoC designs before committing to silicon. Engineers can map multi-million-gate ASIC RTL into multiple APEX II devices, leveraging the 540 user I/Os to interconnect FPGAs in a multi-chip emulation farm. The MultiVolt I/O banks allow direct connection to legacy 5V and modern 1.8V ASIC-style interfaces without level shifters. Compared to ASICs, the APEX II provides faster design iteration at the cost of lower clock frequency and higher per-unit cost.
Được đề xuất
Telecommunications Infrastructure
Telecommunications base stations, routers, and DSLAMs historically used the EP2A70B724C8 for high-speed packet processing and protocol conversion. Its 1146880 bits of dual-port embedded RAM enable deep packet buffering across clock domains, while the four PLLs synthesize the multiple reference clocks required by SONET/SDH, E1/T1, and Ethernet PHYs. The True-LVDS capability supports backplane serial links at hundreds of Mbps. APEX II's SRAM-based flexibility allows field upgrades to support evolving telecom standards.
Được đề xuất
Digital Signal Processing (DSP)
The EP2A70B724C8 supports high-throughput DSP functions including FIR filters, FFT engines, and adaptive equalizers for video, audio, and radar processing. With 67200 logic elements, designers can implement hundreds of multipliers in distributed logic or use the embedded RAM for coefficient storage and data buffering. The four PLLs provide the multiple sample-rate clocks needed for polyphase filter banks and baseband processing. MultiVolt I/O allows direct interface to high-speed ADC/DAC converters at 1.8V or 3.3V without external buffering.
Được đề xuất
Video Processing Pipelines
Video broadcast equipment and image processing systems leveraged the EP2A70B724C8 to implement HD-SDI, DVB-ASI, and MPEG transport-stream pipelines in the early 2000s. The 540 user I/Os allow simultaneous connection to multiple video serializers, frame buffers, and compression engines. Embedded dual-port RAM supports line buffers and frame stores, while the True-LVDS transceivers handle SDI-grade serial data. The MultiVolt I/O simplifies interfacing to legacy 5V video ADCs and DACs.
Được đề xuất
Industrial Control and Automation
Factory automation controllers and motion-control systems used the EP2A70B724C8 for parallel servo-loop processing and high-speed deterministic control. The 67200 LEs support hundreds of PID controllers running in parallel, while the embedded RAM stores trajectory tables and process recipes. MultiVolt I/O banks interface directly to 24V industrial sensor/actuator networks through external optocouplers, as well as to 3.3V encoder interfaces. SRAM-based reconfiguration enables field upgrades of control algorithms.
Được đề xuất
Test and Measurement Instrumentation
High-end oscilloscopes, logic analyzers, and protocol analyzers in the early 2000s used the EP2A70B724C8 for real-time signal acquisition, triggering, and protocol decoding. The 540 user I/Os accept parallel high-speed ADC data streams, while the embedded dual-port RAM captures deep pre-trigger waveforms. The four PLLs synthesize the multiple time bases needed for timing analysis. MultiVolt I/O allows direct connection to legacy 5V test points and modern 1.8V SerDes outputs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EP2A70B724C8 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EP2A70B724C8N | EP2A70B724C7 | EP2A70B724C7N | EP2A70B724C7ES | EP2A70B724C9N |
|---|---|---|---|---|---|---|
| Package | 724-BBGA, FCBGA | 724-BBGA, FCBGA (same) | 724-BBGA, FCBGA (same) | 724-BBGA, FCBGA (same) | 724-BBGA, FCBGA (same) | 724-BBGA, FCBGA (same) |
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Logic Elements | 67200 | 67200 | 67200 | 67200 | 67200 | 67200 |
| Embedded RAM (bits) | 1146880 | 1146880 | 1146880 | 1146880 | 1146880 | 1146880 |
| Max User I/Os | 540 | 540 | 540 | 540 | 540 | 540 |
| Speed Grade | C8 | C8N (industrial) | C7 (slower) | C7N (slower, industrial) | C7ES (engineering sample) | C9N (faster, industrial) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Highest-density APEX II in 724-BGA package (vsEP2A40B724C8)
- Industrial temperature grade available as drop-in (vsEP2A70B724C8N)
- Faster speed grade option without redesign (vsEP2A70B724C9N)
- MultiVolt I/O eliminates external level shifters (vsAPEX 20K family (e.g., EP20K600EBC652))
Ghi chú thiết kế
The EP2A70B724C8 requires four independent power rails: VCCINT (core, typically 1.5V for APEX II), VCCIO (per I/O bank, configurable to 1.8V/2.5V/3.3V/5V via MultiVolt), VCC_PLL (analog PLL supply, requires LC filtering per APEX II datasheet), and VCC_REF (PLL reference voltage). Each rail must be decoupled with 0.1uF ceramic capacitors placed within 5mm of each supply pin, plus bulk decoupling at the board entry. Power sequencing is not strictly required by APEX II, but simultaneous ramp-up of all rails is recommended to avoid latch-up.
The 724-BGA package has a thermal resistance theta_JA of approximately 8-12 C/W with proper PCB thermal via array under the package. For full 67200-LE utilization at high toggle rates, junction-to-ambient rise can exceed 30C above ambient without forced airflow. Place thermal vias in a 1.27mm pitch grid directly under the package center array, connecting to internal ground planes. At industrial temperature (-40C to +100C), derate clock frequency by 5-10% from commercial-spec Fmax to maintain timing closure across the full operating range.
The 724-BGA with 1.27mm ball pitch requires microvia or laser-drilled via technology for escape routing. Use a 4-6 layer stack-up with at least two internal ground planes for return-path integrity. All signal layers must maintain 100-ohm differential impedance for True-LVDS pairs and 50-ohm single-ended for general I/O. The configuration PROM (EPC16, EPC64, or EPC128) must be placed within 50mm of the FPGA DATA pins to meet passive-serial configuration timing. Add JTAG test points (TCK, TMS, TDI, TDO) accessible from board edge for in-system programming.
Common APEX II design pitfalls: (1) failing to initialize all I/O banks - unused banks still require VCCIO connected; (2) exceeding the 5V-tolerant I/O absolute maximum when interfacing to legacy 5V TTL; (3) forgetting that APEX II is volatile and requires a configuration PROM at every power-up; (4) mixing MultiVolt bank voltages incorrectly - reference voltages must match VCCIO bank; (5) underestimating the bitstream size for full-utilization designs - select EPC64 or EPC128 PROM, not EPC8. Always verify configuration PROM size against the Quartus II programming file output (.pof).
Thông tin tuân thủ
APEX II family predates widespread RoHS adoption. RoHS/REACH status for EP2A70B724C8 specifically is not documented on current distributor pages - confirm with supplier before using in RoHS-restricted designs. AEC-Q100 not applicable - this is a general-purpose industrial/commercial FPGA, not an automotive-qualified part.
