EP1SGX40DF1020C5N

Overview

The Altera EP1SGX40DF1020C5N is a Stratix GX Field-Programmable Gate Array (FPGA) housed in a 1,020-pin FineLine BGA package. It features 41,250 logic elements and eight high-speed serial transceiver channels capable of full-duplex operation from 500 Mbps to 3.1875 Gbps. The device includes TriMatrix memory with up to 1,944,576 RAM bits and 10 DSP blocks. Operating at speed grade -5, it supports protocols such as XAUI, Gigabit Ethernet, PCI Express, and SONET/SDH through integrated 8B/10B encoding and clock data recovery.

Feature Summary

• Contains 41,250 logic elements and 1,944,576 total RAM bits across M512, M4K, and M-RAM blocks.
• Integrates eight high-speed serial transceiver channels supporting data rates up to 3.1875 Gbps.
• Includes 10 Digital Signal Processing (DSP) blocks for multiplier and filter implementations.
• Supports programmable pre-emphasis, equalization, and output voltage settings for signal integrity.

Applications

• High-speed backplane interface systems
• Chip-to-chip communication links
• Communications protocol bridging
• PCI Express Gen1/Gen2 endpoint designs

Procurement Notes

Verify the specific ordering suffix against the manufacturer's pinout documentation to confirm package dimensions and I/O availability. Ensure the speed grade matches system timing requirements. Confirm that the design utilizes the correct power supply voltages, specifically the 1.5-V logic array and appropriate I/O standards. Cross-reference the device revision with any available errata sheets prior to finalizing the procurement order.

Selection Notes

Select this component when requiring eight dedicated high-speed serial lanes within a dense FPGA architecture. Compare resource utilization against the EP1SGX25 variants if fewer logic elements suffice. Verify that the 1,020-pin package footprint aligns with the PCB layout constraints. Consider the -5 speed grade limitations regarding maximum input clock frequencies for the transmitter and receiver PLLs during system design.

Part Context

This part belongs to the Stratix GX family, Altera’s second FPGA generation to combine high-performance logic with embedded serial transceivers. It sits between the EP1SGX25 and higher-density models in terms of logic resources. The device supports vertical migration within the same 1,020-pin package family, allowing designers to scale density while maintaining pin compatibility for configuration and power pins.

Replacement Considerations

EP1SGX40G: Offers identical logic resources but provides twenty transceiver channels instead of eight. EP1SGX25D: Provides lower logic density (25,660 LEs) and eight transceiver channels in the same package type. EP1SGX25F: Features sixteen transceiver channels with equivalent logic density to the EP1SGX25 series.