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Cypress Semiconductor Corp
PSOC® 3 CY8C38xxx
Honeywell Aerospace
Lumissil Microsystems
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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.

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.

  • 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
  • Downhole Oil Well, Avionics
  • Turbine Engine Control
  • Industrial Process Control
  • Nuclear Reactor
  • Electric Power Conversion
  • Heavy Duty Internal Combustion Engine
  • 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