HT83C51DC

HTMOSTM High Temperature Products Preliminary HIGH TEMPERATURE 83C51 MICROCONTROLLER FEATURES HTMOS Specified Over -55 to +225°C 8-bit CPU Optimized For 5 Volt Control Applications Four 8-bit Bidirectional Parallel Ports Three 16-bit Timer/Counters with One Up/Down Timer/Counter and Clock Out Programmable Counter Array with: – Capture/Compare – Software Timer with Watchdog Capability – High Speed Output – Pulse Width Modulator Interrupt Structure with Seven Sources and Four Priority Levels Half Duplex Programmable Serial Port with: – Framing Error Detection – Automatic Address Recognition 64K External Program Memory Address Space Hermetic 40-Pin Ceramic DIP HT83C51 64K External Data Memory Address Space 256 Bytes Internal Data Memory 8K Byte Mask ROM On-Chip Oscillator MCS-51Compatible Instruction Set APPLICATIONS Down-Hole Oil Well Avionics Turbine Engine Control Industrial Process Control Nuclear Reactor Electric Power Conversion Heavy Duty Internal Combustion Engines GENERAL DESCRIPTION The HT83C51 is a monolithic 8-bit microcontroller that is pin equivalent to the Intel 8XC51FC microcontroller. Fabricated with Honeywell’s dielectrically isolated high-temperature (HTMOS™) process, it is designed specifically for severe high-temperature applications such as down-hole oil well, aerospace, turbine engine and industrial control. The HT83C51 uses the standard MCS-51 instruction set which is optimized for control applications. Pin-...