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80C85AHRS Datasheet

MSM80C85AHRS

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80C85AHRS pdf
E2O0009-27-X2
¡ Semiconductor¡ Semiconductor
MTShMis8v0eCrs8i5oAn:HJRaSn./G19S9/8JS
Previous version: Aug. 1996
MSM80C85AHRS/GS/JS
8-Bit CMOS MICROPROCESSOR
GENRAL DESCRIPTION
The MSM80C85AH is a complete 8-bit parallel; central processor implemented in silicon gate
C-MOS technology and compatible with MSM80C85A.
It is designed with higher processing speed (max.5 MHz) and lower power consumption
compared with MSM80C85A and power down mode is provided, thereby offering a high level
of system integration.
www.DataSheTeth4Ue.McomSM80C85AH uses a multiplexed address/data bus. The address is split between the 8-
bit address bus and the 8-bit data bus. The on-chip address latch : of a MSM81C55-5 memory
product allows a direct interface with the MSM80C85AH.
FEATURES
• Power down mode (HALT-HOLD)
• Low Power Dissipation: 50mW(Typ)
• Single + 3 to + 6 V Power Supply
• –40 to + 85°C, Operating Temperature
• Compatible with MSM80C85A
• 0.8 ms instruction Cycle (VCC = 5V)
• On-Chip Clock Generator (with External Crystal)
• On-Chip System Controller; Advanced Cycle Status Information Available for Large System
Control
• Bug operation in MSM80C85AH is fixed
• Four Vectored interrupt (One is non-maskable) Plus the 8080A-compatible interrupt.
• Serial, In/Serial Out Port
• Decimal, Binary and Double Precision Arithmetic
• Addressing Capability to 64K Bytes of Memory
• TTL Compatible
• 40-pin Plastic DIP(DIP40-P-600-2.54): (Product name: MSM80C85AHRS)
• 44-pin Plastic QFJ(QFJ44-P-S650-1.27): (Product name: MSM80C85AHJS)
• 44-pin Plastic QFP(QFP44-P-910-0.80-2K): (Product name: MSM80C85AHGS-2K)
1/29


Oki Electric Industry Electronic Components Datasheet

80C85AHRS Datasheet

MSM80C85AHRS

No Preview Available !

80C85AHRS pdf
¡ Semiconductor
FUNCTIONAL BLOCK DIAGRAM
INTR INTA
RST
5.5 6.5 7.5 TRAP
MSM80C85AHRS/GS/JS
SID SOD
Interrupt Control
8-Bit Internal Data Bus
Serial I/O Control
Accumulator
(8)
www.DataSheet4U.com
Temporary Register
(8)
Flag (5)
Flip Flops
Arithmetic
Logic Unit
ALU(8)
Power
Supply
+5V
GND
Power Down
Timing And Control
X1 CLK
X2 GEN
Control
Status
DMA
Instruction
Register (8)
Instruction
Decoder
And
Machine
Cycle
Encoding
Reset
B REG (8)
C REG (8)
D REG (8)
E REG (8)
H REG (8)
C REG (8)
Stack Pointer (16)
Program Counter (16)
Incrementer/Decrementer
Address Latch (16)
Register
Array
Address Buffer (8)
Data/Address
Buffer (8)
CLK READY RD WR ALE S0 S1 IO / M HOLD HLDA RESET IN RESET OUT
OUT
A15 - A8
Address Bus
AD7 - AD0
Address/Data Bus
2/29


Part Number 80C85AHRS
Description MSM80C85AHRS
Maker OKI electronic componets
Total Page 29 Pages
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