SUMMARY DESCRIPTION
The uPSD321x Series combines a fast 8051-based microcontroller with a flexible memory structure, programmable logic, and a rich peripheral mix including USB, to form an ideal embedded controller. At its core is an industry-standard 8032 MCU operating up to 40MHz.
A JTAG serial interface is used for In-System Programming (ISP) in as little as 10 seconds, perfect for manufacturing and lab development.

FEATURES SUMMARY
■ FAST 8-BIT 8032 MCU
    – 40MHz at 5.0V, 24MHz at 3.3V
    – Core, 12-clocks per instruction
■ DUAL FLASH MEMORIES WITH MEMORY MANAGEMENT
    – Place either memory into 8032 program address space or data address space
    – READ-while-WRITE operation for InApplication Programming and EEPROM emulation
    – Single voltage program and erase
    – 100K minimum erase cycles, 15-year retention
■ CLOCK, RESET, AND SUPPLY MANAGEMENT
    – SRAM is Battery Backup capable
    – Normal, Idle, and Power Down Modes
    – Power-on and Low Voltage reset supervisor
    – Programmable Watchdog Timer
■ PROGRAMMABLE LOGIC, GENERAL PURPOSE
    – 16 macrocells
    – Implements state machines, glue-logic, and so forth
■ COMMUNICATION INTERFACES
    – I2C Master/Slave bus controller
    – Two UARTs with independent baud rate
    – Six I/O ports with up to 46 I/O pins
    – 8032 Address/Data bus available on TQFP80 package
    – 5 PWM outputs, 8-bit resolution
    – USB v1.1, low-speed 1.5Mbps, 3 endpoints (uPSD3212A only)
■ JTAG IN-SYSTEM PROGRAMMING
    – Program the entire device in as little as 10 seconds
■ A/D CONVERTER
    – Four channels, 8-bit resolution, 10µs
■ TIMERS AND INTERRUPTS
    – Three 8032 standard 16-bit timers
    – 10 Interrupt sources with two external interrupt pins
■ Single Supply Voltage
    – 4.5 to 5.5V
    – 3.0 to 3.6V