PALCE16V8Q25JC4

The Lattice Semiconductor PALCE16V8Q25JC4 is an advanced, electrically erasable CMOS Programmable Logic Device (CPLD). It is functionally compatible with all 20-pin GAL devices and can directly replace PAL16R8 devices. The PALCE16V8 utilizes a sum-of-products (AND/OR) architecture, allowing for easy implementation of complex logic functions. The device features a fixed OR array that supports up to eight data product terms per output, with each macrocell programmable as registered or combinatorial with active-high or active-low output.

This CPLD is available in high-speed CMOS technology, offering a propagation delay of 5 ns for the "-5" version and 7.5 ns for the "-7" version. The PALCE16V8Z variant provides zero standby power, with a maximum standby current of 30 µA, making it suitable for battery-powered applications. The device is programmed through floating-gate cells in the AND logic array, which can be electrically erased for reconfigurability.

The PALCE16V8 is pin and function compatible with all 20-pin PAL devices. It can be programmed as a standard PAL device from the PAL16R8 series or as a PALCE16V8 for full macrocell utilization. Unused input pins should be tied directly to VCC or GND.