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UMC - Single Chip 8-Bit Microcomputer

Numéro de référence UM8039
Description Single Chip 8-Bit Microcomputer
Fabricant UMC 
Logo UMC 





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UM8039 fiche technique
(l)UMC
UM8048 /8035/8049/8039
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Features
• S-Bit CPu, ROM, RAM, I/O in single package
• Single 5V supply
• Up to 1.36 J1,sec instruction cycle for 11 MHz operation.
All instructions 1 or 2 cycles
• Basic machine instructions: 96
1-byte instructions: 68
2-byte instructions: 2S
• Single level interrupt
General Description
The UMS04S/S035/~049/8039 is a totally self-sufficient
8-bit parallel computer fabricated on a single silicon chip
using UMC N-channel silicon gate MOS process.
The UMS048 contains a 1K x S program memory, a 64 x S
RAM data memory, 27 I/O lines, and an S-bit timer/counter
in addition to on-board oscillator and clock circuits. The
UMS049 contains a 2K x S program memory, a 128 x S
RAM data memory, 27 I/O lines, and an S-bit timer/counter
in qddition to on board oscillator and clock circuits. For
systems· that requ ire extra capabi Iity, the UMS04S/8049
can be expanded using standard memories and MCS-4S,
• UMS04S/8049 is interchangeable with Intel's PS04S/
S049 in pin configuration and electrical characteristics
• UMS049-2Kx8 ROM 12Sx8 RAM 27 I/O Lines
UMS04S-1KxS ROM 64xB RAM 27 I/O Lines
• Internal timer/event counter
• Easily expandable memory and I/O
• Compatible with MCS memory and I/O
MCS-80 and MCS-85 peripherais. The UMS035 is the
equivalent of an UMS04S without program memory. The
UMS039 is the equivalent to an UM8049 without program
memory.
This microprocessor is designed to be an efficient controller
as well as an arithmetic processor. The UMS04S/S049 has
extensive bit handling capability as well as facilities for
both binary and BCD arithmetic. Efficient use of program
memory results from an instruction set consisting mostly of
single byte instructions and non instructions over two
bytes in length.
Pin Con~iguration
TO
XTAL1
XTAL2
RESET
ss
INT
EA
RD
PSEN
WR
ALE
DBo
DBl
DB2
DB3
DB4
DBs
DB6
DB7
VSS
Vee
T!
P27
P26
P25
P24
P17
P16
P15
P14
P13
P12
Pll
Pl0
VDD
PROG
P23
P22
P21
P20
Logic Symbol
XTAL{:
RESET
SINGLE
STEP -
EXTERNAL
MEM-
UM8048!
8049
TEST { :
INTERRUPT -
PORT
=1
PORT
=2
BUS
PORT
EXPANDER
STROBE
3-3

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