
STMicroelectronics
FEATURES SUMMARY
■ The uPSD321X Devices combine a Flash PSD architecture with an 8032 microcontroller core. The uPSD321X Devices of Flash PSDs feature d)ual banks of Flash memory, SRAM, general purpose I/O and programmable logic, supervisory functions and access via I2C, ADC and PWM channels, and an on-board 8032 microcontroller core, with two UARTs, three 16-bit Timer/Counters and two External Interrupts. As with other Flash PSD families, the uPSD321X Devices are also in-system programmable (ISP) via a JTAG ISP interface.
■ Large 2KByte SRAM with battery back-up option
■ Dual bank Flash memories
– 64KByte main Flash memory
– 16KByte secondary Flash memory
■ Content Security
– Block access to Flash memory
■ Programmable Decode PLD for flexible address mapping of all memories within 8032 space.
■ High-speed clock standard 8032 core (12-cycle)
■ I2C interface for peripheral connections
■ 5 Pulse Width Modulator (PWM) channels
■ Analog-to-Digital Converter (ADC)
■ Six I/O ports with up to 46 I/O pins
■ 3000 gate PLD with 16 macrocells
■ Supervisor functions with Watchdog Timer
■ In-System Programming (ISP) via JTAG
■ Zero-Power Technology
■ Single Supply Voltage
– 4.5 to 5.5V
– 3.0 to 3.6V