ATF1504AS-10AC44 - Atmel Obsolete CPLD | High-Speed 64 Macrocell Programmable Logic Device
The ATF1504AS-10AC44 is a high-performance Complex Programmable Logic Device (CPLD) manufactured by Atmel, designed for applications requiring robust logic integration and fast signal processing. This obsolete yet reliable device features 64 macrocells and a maximum propagation delay of 10 nanoseconds, making it suitable for real-time systems and high-frequency operations. With 32 I/O pins and in-system programmability (10K cycles), it offers flexibility for iterative design refinements. The 44-pin TQFP package ensures compact PCB integration, while its 5V operating voltage aligns with standard digital circuits. Despite its obsolete status, the ATF1504AS-10AC44 remains a preferred choice for legacy industrial controls, telecommunications, and educational projects.
Atmel's ATF1504AS-10AC44 excels in logic density and speed, thanks to its 64 macrocells capable of handling complex combinational and sequential logic. The 10ns delay time ensures minimal latency, critical for time-sensitive applications. Its 4.75V 5.25V internal voltage range enhances compatibility with conventional power supplies, reducing design overhead. The device supports surface-mount assembly (44-TQFP, 10x10mm), optimizing board space. With 32 configurable I/Os, it facilitates seamless peripheral interfacing, ideal for embedded systems requiring multi-component communication.
The ATF1504AS-10AC44's in-system programmability (ISP) allows firmware updates without hardware rework, saving development time. Its 10,000 erase/program cycles ensure longevity during prototyping. Operating at 0 C 70 C, it delivers stable performance across diverse environments. The PLD's architecture includes advanced features like programmable slew rate and pin-locking, enabling precise signal integrity management. These attributes make it a versatile solution for obsolete-system maintenance, DIY electronics, and academic research.
Applications of the ATF1504AS-10AC44 span industrial automation, legacy telecom hardware, and consumer electronics. Its high-speed logic processing suits motor control, data routing, and interface bridging. Educators leverage its reprogrammability for teaching digital design, while hobbyists appreciate its balance of capability and accessibility. Though discontinued, its availability through distributors ensures continued support for niche projects.
In summary, the ATF1504AS-10AC44 CPLD combines speed, flexibility, and integration in a compact form. Its 64 macrocells, 10ns delay, and 32 I/Os address complex logic needs, while ISP simplifies updates. For legacy upgrades or specialized designs, this Atmel device remains a pragmatic choice, backed by a proven track record in embedded systems.
