EP4CGX150DF27I7NAF
EP4CGX150DF27I7NAF - Cyclone IV GX FPGA 150K LE BGA-672 | Intel
The Intel (Altera) EP4CGX150DF27I7NAF is a low-cost, low-power Cyclone IV GX field-programmable gate array (FPGA) delivering 149,760 logic elements, 6,635,520 bits of embedded memory, and 720 user I/Os, integrated into a 672-ball fine-pitch BGA package. Built on a 60 nm process and offering integrated 3.125 Gbps transceivers, the device targets high-volume applications where cost, density, and serial connectivity must coexist. The 'I7' speed/temperature grade and 'AF' ordering code indicate industrial temperature range and a specific customer-required set of feature/option combinations verified at Intel's manufacturing flow.
A Cyclone IV GX FPGA belongs to the programmable-logic family of digital ICs. Programmable logic devices (PLDs) and FPGAs allow designers to implement arbitrary digital logic in silicon by configuring an array of logic elements (LEs), embedded memory blocks (M9K/M144K), multiplier blocks, and I/O cells. FPGAs sit between fixed-function ASICs and microcontrollers in the design hierarchy: they offer ASIC-level performance and parallelism while remaining reprogrammable. The Cyclone IV GX sub-family specifically adds multi-gigabit transceivers, making it suitable for serial-protocol bridging such as PCIe Gen1, Gigabit Ethernet, and Serial RapidIO, in addition to general-purpose glue logic.
Key features of the EP4CGX150DF27I7NAF include eight integrated transceivers operating up to 3.125 Gbps, support for PCI Express Gen1 (x1, x2, x4), 8 PLLs, 2 hard memory controllers, and dedicated DDR/DDR2 SDRAM interfaces. Hard IP blocks reduce soft-logic overhead and silicon area while improving timing closure. The device supports multiple boot modes including active serial (AS), passive serial (PS), and JTAG, with bitstream encryption (AES) available for IP protection. Configuration is performed through Quartus II / Quartus Prime design software.
Architecturally, the EP4CGX150DF27I7NAF uses a four-input look-up-table (LUT) logic element architecture with embedded carry chains for arithmetic, 9-Kbit M9K memory blocks, and 144-Kbit M144K memory blocks optimized for buffering. The transceiver physical coding sublayer (PCS) and physical medium attachment (PMA) blocks are hardened, freeing fabric resources for application logic. Multipliers (18x18) enable DSP operations at typical Cyclone IV GX frequencies up to 260 MHz.
Typical applications include industrial video processing, motor control, protocol bridging cards, low-cost PCIe endpoint cards, factory automation controllers, and wireline telecom line cards. The integrated transceivers eliminate external PHY components, reducing both BOM cost and PCB area. Engineers commonly pair this FPGA with external DDR2 SDRAM, flash memory for configuration storage, and an EPCS/EPCQ configuration device.
Designers should pay attention to the BGA-672 PCB layout, which requires microvia or via-in-pad technology, controlled-impedance routing for transceiver channels (100-ohm differential), and strict power-rail decoupling per the Cyclone IV GX device handbook. The industrial temperature grade (-40C to +100C Tcase for 'I7') makes the device suitable for harsh-environment deployments, but thermal management with adequate copper pour and forced airflow is recommended for transceiver-heavy designs.
This page synthesizes Intel pricing, drop-in same-family alternatives from the Cyclone IV GX product tree, and practical design notes that are not found in the standalone datasheet. Engineers should consult the Cyclone IV GX device family overview and the EP4CGX150-specific pin connection guidelines for full electrical and timing details.
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