EPM7064BLC44-5: High-Performance CPLD by Altera | 64 Macrocells, 5ns Speed
The EPM7064BLC44-5 is a flagship Complex Programmable Logic Device (CPLD) from Altera, designed to deliver exceptional performance for embedded and digital systems. With its 64 macrocells and 1,250 equivalent gates, this EE PLD (Electrically Erasable Programmable Logic Device) provides a robust platform for implementing high-speed logic designs. The device operates at a 5V internal supply voltage (4.75V 5.25V range) and achieves an industry-leading propagation delay of just 5ns, making it ideal for time-critical applications. Its 44-PLCC package (16.59mm 16.59mm) ensures compact PCB integration while offering 36 I/O pins for versatile connectivity. Engineers favor this CPLD for its reprogrammability, allowing iterative design improvements without hardware changes.
Key technical specifications include four logic blocks, 64 macrocells with individual product-term allocation, and a wide operating temperature range of 0 C to 70 C. The J-lead 44-LCC package enhances thermal performance and solder joint reliability in surface-mount applications. Altera s MAX 7000 architecture underpins the EPM7064BLC44-5, featuring parallel expander terms that boost logic utilization by sharing macrocell resources. Advanced features like programmable slew-rate control (for reduced EMI) and programmable power-saving mode (reducing standby current by 50%) further distinguish this CPLD. Its 100% CMOS design guarantees low power consumption (typically 100mA active current), while in-system programmability (ISP) via JTAG accelerates development cycles.
The EPM7064BLC44-5 excels in applications demanding rapid signal processing and glue logic integration. Common use cases include industrial automation (PLC I/O interfacing, motor control), telecommunications (protocol conversion, line monitoring), and automotive systems (sensor conditioning, CAN bus interfaces). Its deterministic timing model suits state machine designs, while the 5ns pin-to-pin delay enables clock frequencies up to 200MHz. Designers leverage its flexible I/O buffers (TTL/CMOS compatible) to interface with processors like 8051 or ARM Cortex-M. The device also serves as a cost-effective alternative to ASICs for medium-complexity designs, offering field-upgradability absent in custom silicon.
For procurement and design support, Altera provides Quartus II and MAX+PLUS II development tools with schematic/VHDL/Verilog entry options. Reference designs highlight its utility in legacy system upgrades, such as replacing discrete 7400-series logic with a single CPLD. The EPM7064BLC44-5 remains RoHS-compliant, ensuring adherence to global environmental standards. With over two decades of proven reliability in mission-critical systems, this CPLD continues to be a preferred choice for balancing performance, density, and power efficiency in modern electronic designs.
