FEATURES

q 20MHz 16-bit Microcontroller compatible with industry

standard’s MCS-96 ISA

- Register to Register Architecture

- 1000 Byte Register RAM

q Three 8-bit I/O Ports

q On-board Interrupt Controller

q Three Pulse-Width Modulated Outputs

q High Speed I/O

q UART Serial Port

q Dedicated Baud Rate Generator

q Software and Hardware Timers

- 16-Bit Watchdog Timer, Four 16-Bit Software Timers

- Three 16-Bit Counter/Timers

q Radiation-hardened process and design; total dose

irradiation testing to MIL-STD-883 Method 1019

- Total-dose: 100K rads(Si)

q Error detection and correction for external memory accesses

q QML Q and QML V compliant part

q Standard Microcircuit Drawing 5962-98583

INTRODUCTION

The UT80CRH196KD is compatible with industry standard’s

MCS-96 instruction set. The UT80CRH196KD is supported

by commercial hardware and software development tools.

Built on UTMC’s Commercial RadHard

technology, the microcontroller is hardened against ionizing

dose and charged particles. The microcontroller’s on-board

1000 byte scratch-pad SRAM and flip-flops can withstand

charged particles with energies up to 25 MeV-cm

The UT80CRH196KD accesses instruction code and data via

a 16-bit address and data bus. The 16-bit bus allows the

microcontroller to access 128K bytes of instruction/data

memory. Integrated software and hardware timers, high speed

I/O, pulse width modulation circuitry, and UART make the

UT80CRH196KD ideal for control type applications. The

CPU’s ALU supports byte and word adds and subtracts, 8 and

16 bit multiplies, 32/16 and 16/8 bit divides, as well as

increment, decrement, negate, compare, and logical

operations. The UT80CRH196KD’s interrupt controller

prioritizes and vectors 18 interrupt events. Interrupts include

normal interrupts and special interrupts. To reduce power

consumption, the microcontroller supports software invoked

idle and power down modes. The UT80CRH196KD is

packaged in a 68-lead quad flatpack.

1000 Bytes

RAM

Register File

ALU

MicroCode

Engine

Interrupt

Controller

PTS

Memory

Controller

Queue

Watchdog

Timer

PWM

PORT2

Serial

Port

HSIO and

Timers

HSI HSO

Alternate

Functions

CPU

Alternate

Functions

PORT1

HOLD

HLDA

BREQ

PWM1

PWM2

Control

Signals

Address /Data Bus

Figure 1. UT80CRH196KD Microcontroller

PORT0

EXTINT

ECB0-

ECB5

Standard Products

UT80CRH196KD Microcontroller

Datasheet

September, 2002