EP2AGX45DF25I3G
EP2AGX45DF25I3G - Arria II GX FPGA, 45K LE, 3.5Mb, 572-FCBGA
The Intel (formerly Altera) EP2AGX45DF25I3G is a member of the Arria II GX family of mid-range, low-power FPGAs optimized for high-speed serial connectivity and DSP-intensive applications. Housed in a 572-ball FineLine BGA (FCBGA) package, this device integrates approximately 42,959 logic elements, 3,517,440 bits of embedded RAM, 252 user I/O pins, and dedicated multi-gigabit transceivers (MGTs) capable of data rates up to 6.375 Gbps. The I3G speed grade and industrial temperature rating (-40C to +100C) make this variant suitable for performance-sensitive designs that also demand extended thermal headroom.
Arria II GX FPGAs are programmable logic devices (PLDs) that occupy the mid-range of the FPGA hierarchy, sitting between the low-power Cyclone family and the high-performance Stratix family. Architecturally, an FPGA consists of an array of configurable logic blocks (CLBs) surrounded by programmable interconnect and surrounded by hard IP such as transceivers, memory blocks, DSP blocks, PLLs, and I/O serdes. This heterogeneous architecture allows designers to implement custom parallel logic, signal processing pipelines, and high-speed serial protocols on a single die, while programmable I/O standards (LVDS, LVTTL, LVPECL, HSTL, SSTL) enable direct interfacing to a wide range of external memories and ASICs.
Key features of the EP2AGX45DF25I3G include up to 6.375 Gbps transceiver data rate per channel, 8-input adaptive logic modules (ALMs), dedicated 18x18 multipliers for DSP, integrated PCI Express hard IP, and support for external memory interfaces such as DDR3, DDR2, QDRII+, and RLDRAM II. The 40nm process node reduces static and dynamic power relative to the prior-generation Arria GX family, while embedded signal integrity features such as transmit pre-emphasis, receive equalization, and PCSs (Physical Coding Sublayers) eliminate many of the analog design steps previously required at multi-gigabit speeds.
The transceiver architecture is the defining feature of this family. With multiple MGTs operating independently, designers can implement protocols such as PCI Express Gen1/Gen2, Serial RapidIO, Gigabit Ethernet, SFI-5, XAUI, CPRI, and OBSAI without external PHY chips. Hard PCIe Gen1/Gen2 endpoints and root ports are embedded, simplifying system-level design and reducing BOM cost in telecom, broadcast, and industrial control applications.
Typical applications include wireless baseband processing, software-defined radio (SDR), video broadcasting infrastructure, test and measurement equipment with high-speed serial I/O, industrial imaging pipelines, and medical imaging systems. The combination of DSP blocks, embedded memory, and high-speed transceivers makes this device a frequent choice for 3G/4G remote radio heads, HD-SDI video routers, and PCIe-based adapter cards. The industrial temperature grade extends deployment to outdoor telecom and factory-floor equipment.
When designing with this FPGA, careful attention must be paid to transceiver channel placement, PCB stack-up, and power-supply decoupling. Each MGT draws significant current during data transmission, and the device's pin map must be reviewed against the Quartus II fitter reports to ensure the desired protocol pins are locked. Designers are advised to consult the Arria II GX Device Handbook for transceiver reference schematics and the pin-out description for signal-integrity guidelines.
This page synthesizes distributor pricing, drop-in alternatives from the same Arria II GX family, and design notes not typically covered in the manufacturer datasheet.
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