EP20K100EQC240-1N

Overview

The EP20K100EQC240-1N is a high-density Field Programmable Gate Array from the Altera APEX 20K family, utilizing MultiCore architecture. It integrates Look-Up Table (LUT) logic, product-term logic, and Embedded System Blocks (ESB) for memory functions within a single device. The component features 4,160 Logic Elements (LEs), 416 macrocells, and up to 53,248 RAM bits. Designed for low-power operation, it operates at an internal voltage of 2.5V with MultiVolt I/O support for 2.5V, 3.3V, or 5.0V levels. It is housed in a 240-pin Plastic Quad Flat Package (PQFP) with a 0.50mm pitch.

Feature Summary

• MultiCore Architecture: Combines LUT-based logic for register-intensive functions, product-term logic for combinatorial paths, and ESBs for embedded memory (FIFO, dual-port RAM, CAM).
• High Density: Provides 4,160 LEs, 416 macrocells, and 53,248 maximum RAM bits without reducing available logic capacity.
• Advanced Clock Management: Includes four phase-locked loops (PLLs), a built-in low-skew clock tree, and ClockLock/ClockBoost features for precise timing control.
• Flexible I/O Interface: Supports MultiVolt I/O standards including LVCMOS, LVTTL, PCI, and LVDS, allowing interface with 1.8V, 2.5V, 3.3V, and 5.0V devices.

Applications

• System-on-a-programmable-chip (SOPC) integration requiring combined logic, control, and memory on a single die.
• High-speed data processing and digital signal processing (DSP) applications leveraging LUT efficiency.
• Complex state machine implementations optimized by product-term-based logic structures.
• PCI Local Bus compliant interfaces operating at 33MHz or 66MHz with 32/64-bit widths.

Procurement Notes

Verify the specific speed grade suffix (-1N) against current availability as this legacy APEX 20K series may be discontinued. Confirm package authenticity for the 240-pin PQFP form factor. Ensure design tools are compatible with older Quartus II versions, as newer software suites may not support this device family. Check for RoHS compliance documentation if required for modern manufacturing standards.

Selection Notes

Select this device when designs require a mix of register-intensive datapaths and complex combinatorial control logic. The EP20K100E variant offers enhanced features over the standard EP20K100, such as additional global clocks and advanced I/O standards. Consider the 240-pin PQFP package constraints regarding board space and thermal dissipation compared to BGA options. Evaluate power requirements, noting the 2.5V core voltage and MultiVolt I/O flexibility.

Part Context

This component belongs to the APEX 20K family, which was among the first PLDs to integrate SOPC capabilities. The 'E' suffix denotes the APEX 20KE subset, offering extended features like 1.8V I/O support and enhanced clock management compared to the base APEX 20K line. It represents a transition technology between traditional CPLDs and modern FPGAs, bridging the gap with its hybrid architecture.

Replacement Considerations

Direct replacements are limited due to the legacy status of the APEX 20K family. Modern Intel/Altera FPGA families such as Cyclone IV, V, or 10 LP may serve as functional equivalents but require architectural redesign. Legacy APEX 20K devices should be cross-referenced with other Altera high-density PLDs if pin compatibility is critical, though logical mapping will differ significantly.