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M82C55A 반도체 회로 부품 판매점

MSM82C55A



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M82C55A 데이터시트, 핀배열, 회로
E2O0020-27-X3
¡¡SemicondSucetormiconductor
MSTMh8is2Cve5wr5wsAiwo-.nD2a:RtaJSSah/neGe.t41SU9/.9cVo8JmS
Previous version: Aug. 1996
MSM82C55A-2RS/GS/VJS
CMOS PROGRAMMABLE PERIPHERAL INTERFACE
GENERAL DESCRIPTION
The MSM82C55A-2 is a programmable universal I/O interface device which operates as high
speed and on low power consumption due to 3m silicon gate CMOS technology. It is the best
fit as an I/O port in a system which employs the 8-bit parallel processing MSM80C85AH CPU.
This device has 24-bit I/O pins equivalent to three 8-bit I/O ports and all inputs/outputs are
TTL interface compatible.
FEATURES
• High speed and low power consumption due to 3m silicon gate CMOS technology
• 3 V to 6 V single power supply
• Full static operation
• Programmable 24-bit I/O ports
• Bidirectional bus operation (Port A)
• Bit set/reset function (Port C)
• TTL compatible
• Compatible with 8255A-5
• 40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM82C55A-2RS)
• 44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM82C55A-2VJS)
• 44-pin Plastic QFP (QFP44-P-910-0.80-2K): (Product name: MSM82C55A-2GS-2K)
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M82C55A 데이터시트, 핀배열, 회로
¡ Semiconductor
CIRCUIT CONFIGURATION
MSM82C5w5wAw-.D2aRtaSSh/eGet4SU/.cVoJmS
VCC
GND
D0 - D7
8
Data
Bus
Buffer
RD
WR
RESET
CS
A0
A1
Read/
Write
Control
Logic
8
Group A
Control
8
8
8
Group A
Port A
(8)
4 Group A
Port C
(High Order
4 Bits)
Group B
Control
8
4 Group B
Port C
(Low Order
4 Bits)
8
Group B
Port B
(8)
8
PA0 - PA7
4
PC4 - PC7
4
PC0 - PC3
8
PB0 - PB7
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