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Cypress Semiconductor Corp
PSOC® 3 CY8C38xxx
Honeywell Aerospace
HT83C51
 
Maxim Integrated
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HT83C51

High Temperature 83C51 Microcontroller

Honeywell Aerospace

The HT83C51 is a monolithic 8-bit microcontroller that is pin equivalent to the Intel 8XC51FC microcontroller. Fabricated with Honeywell’s HTMOS™ dielectrically isolated high temperature process, the HT83C51 is designed specifically for severe high temperature applications such as downhole oil well, aerospace, turbine engine and industrial control.

Datasheets:
Product Description

The HT83C51 uses the standard MCS-51 instruction set which is optimized for control applications. Pin-for-pin equivalent to the MCS-51 series product, it is compatible with all known development environments. Key features include the programmable counter array, watch dog timer, enhanced serial port for multi-processor communication and a hierarchical interrupt structure. Software selectable idle is included for reduced power. The HT83C51 varies from the standard 83C51FC, in that it supports half-duplex serial communication, and has 8k Bytes of Mask programmable ROM. The device is available in a standard pinout DIP, with optional packages considered. These microcontrollers provide guaranteed performance supporting operating frequencies in excess of 16 MHz over the full -55 to 225°C temperature range. Typically, parts will operate up to 300°C for a year, with derated performance.

Features
  • Specified Over -55 to 225°C
  • On-Chip Oscillator
  • 8-bit CPU Optimized for 5 Volt Control Applications
  • Interrupt Structure with Seven Sources and Four Priority Levels
  • Four 8-bit Bidirectional Parallel Ports
  • Half Duplex Programmable Serial Port with Framing Error Detection and Automatic Address Recognition Three 16-bit Timer/Counters with One Up/Down Timer/Counter and Clock Out
  • 256 Bytes Internal Data Memory
  • 64K External Data Memory Address Space
  • Hermetic 40-pin Ceramic Dip
  • MCS-51 Compatible Instructions Set
  • Parts burned in at 250°C
  • Programmable Counter Array with:
  • Capture/Compare, Software Timer with Watchdog Capability, High Speed Output, and Pulse Width Modulator
Applications:
  • Downhole Oil Well, Avionics
  • Turbine Engine Control
  • Industrial Process Control
  • Nuclear Reactor
  • Electric Power Conversion
  • Heavy Duty Internal Combustion Engine
Specifications
  • Connectivity:EBI/EMI, UART/USART
  • Core Processor:MCS 51
  • Core Size:8-Bit
  • Mounting Type:Through Hole
  • Number of I/O:32
  • Operating Temperature:-55°C ~ 225°C (TA)
  • Oscillator Type:Internal
  • Package / Case:40-CDIP (0.600", 15.24mm)
  • Peripherals:PWM, WDT
  • Program Memory Size:8KB (8K x 8)
  • Program Memory Type:Mask ROM
  • RAM Size:256 x 8
  • Speed:16MHz
  • Supplier Device Package:40-Cerdip
  • Voltage - Supply (Vcc/Vdd):4.5V ~ 5.5V
Parts