8-BIT MICROCONTROLLER 80C51RH Control 80C51RH Inte

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8-BIT MICROCONTROLLER 80C51RH Control 80C51RH Inte

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SPACE PRODUCTS
8-BIT MICROCONTROLLER
80C51RH
Control
80C51RH
Interrupt Contrller
Chip Select Unit Serial Controller
Watch Timer Counter Unit
Memory
Parallel Port
FEATURES:
bytes on-chip data Four 16-bit timer/counter programmable lines (ten 8-bit ports) programmable full duplex serial channels Single power supply Military temperature range: Radiation-hardened: Total dose: rads (Si) SEU: 10-8 (upsets/bit-day) SEL: immune
DESCRIPTION:
Space Electronics' 80C51RH INTEL compatible single chip microcontroller fabricated using radiation-hardened technology. 80C51RH 8-bit microcontroller features typical MRads (Si) total dose tolerance (dependent upon orbit mission duration) latchup immune.
0215.99Rev0
data sheets subject change without notice
(619) 452-4167 Fax: (619) 452-5499 www.spaceelectronics.com
©1999 Space Electronics Inc. rights reserved.
80C51RH
TABLE
FUNCTION Core Instruction Clock Frequency Internal Internal Data Interrupt Circuit Digital Interface Circuit Serial Port Number Channels Digital Transmission Transfer Rate Transfer Method Parallel Port Number Ports Number Bits Setup Port (Core CPU) Ports M8255 macro-based) (8-bits ports) Programmable 8-bit unit Channel (Core CPU) Channel (Using M8251 macro-based) Full duplex 300-19200 (programmable) Asynchronous communications DESCRIPTION
8-BIT MICROCONTROLLER
Full software compatible with INTEL 8051 (8-bit CPU) 12.5 maximum Kbytes mask bytes Channel (external interrupt) Channel (internal interrupt CPU)
Memory
TABLE
FUNCTION Boot Loader/Debugger Programs Built-in test (register check, calculator check, memory check) Down load user program (conform INTEL file) Dump external data memory Display modify data external data memory Display modify data internal data memory Dispaly modify data register Execute interrupt user program Internal mask boot loader/debugger programs which enable user program loaded through serial lines from external host computer executed. external host computer sends command through serial lines download program. DESCRIPTION
0215.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
80C51RH
TABLE
FUNCTION Counter/Timer Circuit (CTC) Number Channels Number Count Setup Clock Input Supplement channel (core CPU) channel (using M8254 macro-based) 16-bit length DESCRIPTION
8-BIT MICROCONTROLLER
channel (core CPU) Programmable select external/internal input channel (M8254 macro-based) external input only channel (core CPU) channel used baud rate generator
TABLE
FUNCTION Watch-dog-timer Circuit (WDT) Time output 175, 350, 699, 1398 MHz) clock) programmable error signal outside RH8M51 DESCRIPTION
Memory
TABLE
FUNCTION Function Extend Circuit Signal external interface Address Data Control 16-bit 8-bit Program memory read (PSEN*) Data memory read (RD*) Data memory write (WR*) Memory read (MEM_RD*) request (IORQ*) Signal external memory select Signal bank select 2-bit Kbyte unit) 7-bit Kbyte unit) DESCRIPTION
This device some select signals extend lines memories outside 80C51RH.
0215.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
80C51RH
TABLE
FUNCTION Line External Address Data 12-bit 8-bit DESCRIPTION
8-BIT MICROCONTROLLER
80C51RH able have external without using internal mask ROM.
Memory
0215.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
80C51RH
FIGURE 80C51RH BLOCK DIAGRAM
8-BIT MICROCONTROLLER
Memory
0215.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
80C51RH
FIGURE CONNECTIONS
8-BIT MICROCONTROLLER
Memory
0215.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.

8-BIT MICROCONTROLLER 80C51RH Control 80C51RH Inte

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