PSD5XX/ZPSD5XX is low cost field programmable microcontroller peripherals with single supply voltage, up to 1 Mbit of UV EPROM, up to 16 Kbit SRAM, input latches, programmable I/O ports, page logic and programmable security.
The PSD5XX family is a single-chip programmable peripheral designed to integrate high-performance blocks of EPROM, programmable logic, and SRAM into one part. It eliminates the need for external glue logic by providing a user-programmable interface to various 8- and 16-bit microcontrollers with multiplexed or non-multiplexed buses.
The device includes three Zero-power PLDs (ZPLDs): a Decode PLD (DPLD), a General-purpose PLD (GPLD), and a Peripheral PLD (PPLD). It features up to 1 Mbit of UV EPROM, an optional 16 Kbit SRAM with battery backup, four 16-bit Counter/Timers, and an eight-level priority encoded Interrupt Controller. The architecture supports power management units for standby and sleep modes.
| Supply Voltage (PSD5XX) | 5 V±10% |
|---|---|
| Supply Voltage (ZPSD5XX-V) | 2.7 to 5.5V |
| EPROM Capacity | Up to 1 Mbit |
| SRAM Capacity | Up to 16 Kbit |
| Number of I/O Pins | 40 |
| Maximum Operating Frequency (Counter) | 7.5 MHz |
| EPROM Access Time | As fast as 70 ns |
No, this is information on a product still in production but not recommended for new designs.
The device includes a Decode PLD (DPLD), a General-purpose PLD (GPLD), and a Peripheral PLD (PPLD).
The Interrupt Controller has eight levels of priority encoding.