'HIGH TEMPERATURE' related articles 2

  1. 2009/08/17 HT6256 - HIGH TEMPERATURE 32K x 8 STATIC RAM
  2. 2009/06/30 HT83C51 - HIGH TEMPERATURE 83C51 MICROCONTROLLER
GENERAL DESCRIPTION
The 32K x 8 High Temperature Static RAM is a high performance 32,768 word x 8-bit static random access memory with industry-standard functionality. It is fabricated with Honeywell’s HTMOS™ technology, and is designed for use in systems operating in severe high temperature environments.
The RAM requires only a single 5 V ± 10% power supply and has CMOS compatible I/O. Power consumption is typically less than 30 mW/MHz in operation, and less than 10 mW when de-selected. The RAM read operation is fully asynchronous, with an associated typical access time of
50 ns at 5 V.
The RAM provides guaranteed performance over the full -55 to +225°C temperature range. Typically, parts will operate up to +300°C for a year, with derated performance. All parts are burned in at 250°C to eliminate infant mortality.

FEATURES
*Specified Over -55 to +225°C
*Fabricated with HTMOS™ IV Silicon on Insulator (SOI)
*Read/Write Cycle Times £ 50 ns Support 20 MHz Clock
*Asynchronous Operation
*CMOS Input/Output Buffers
*Single 5 V ± 10% Power Supply
*Hermetic 28-Lead Ceramic DIP

APPLICATONS
*Down-Hole Oil Well
*Avionics
*Turbine Engine Control
*Industrial Process Control
*Nuclear Reactor
*Electric Power Conversion
*Heavy Duty Internal Combustion Engines

HT6256DC, HT6256DB

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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-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. All parts are burned in at 250°C to eliminate infant mortality.

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
*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

HT83C51DC, HT83C51DB

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