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Número de pieza
componentes Descripción
HS-82C55ARH Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
HS-82C55ARH
Radiation Hardened CMOS Programmable Peripheral Interface
Intersil
HS-82C55ARH Datasheet PDF : 17 Pages
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Functional Diagram
POWER
SUPPLIES
+5V
GND
HS-82C55ARH
GROUP A
CONTROL
GROUP A
PORT A
(8)
BIDIRECTIONAL
DATA BUS
D7 - D0
DATA
BUS
BUFFER
RD
WR
A1
A0
RESET
CS
READ/WRITE
CONTROL
LOGIC
8-BIT INTERNAL
DATA BUS
GROUP B
CONTROL
GROUP A
PORT C
UPPER (4)
GROUP B
PORT C
LOWER (4)
GROUP B
PORT B
(8)
I/O
PA7 - PA0
I/O
PC7 - PC4
I/O
PC3 - PC0
I/O
PB7 - PB0
AC Test Circuit
FROM OUTPUT
UNDER TEST
V1
R1
R2
TEST
POINT
C1 (NOTE)
NOTE: Includes stray and jig capacitance.
TEST CONDITIONS DEFINITION TABLE
V1
R1
R2
C1
1.7V
523
Ω
Open
150pF
AC Testing Input, Output Waveforms
INPUT
2.8V
0.4V
1.5V
1.5V
NOTE: AC Testing: All parameters tested as per test circuits. Input
rise and fall times are driven at 1V/ns.
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