參數(shù)資料
型號(hào)： MSM80C88A-10RS
廠商： OKI ELECTRIC INDUSTRY CO LTD
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 10 MHz, MICROPROCESSOR, PDIP40
封裝： 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-40
文件頁(yè)數(shù)： 9/37頁(yè)
文件大小： 267K
代理商： MSM80C88A-10RS
17/37
Semiconductor
MSM80C88A-10RS/GS/JS
RQ/GT0
RQ/GT1
REQUEST/GRANT:Input/Output
These lines are used for Bus Request from other devices and Bus GRANT to other devices.
These lines are bidirectional and active low.
LOCK
LOCK:Output
This line is active low.
When this line is low, other devices cannot gain control of the bus.
This line is high impedance hold acknowledge.
QS0/QS1
QUEUE STATUS: Output
These are Queue Status Lines that indicate internal instruction queue status.
0
1 (HIGH)
1
First Byte of Op Code from Queue
0 (LOW)
No operation
QS1
1
0
1
0
QS0
Characteristics
Empty the Queue
Subsequent Byte from Queue
The following pin function descriptions are minimum mode only. Other pin functions are
already described.
IO/M
STATUS: Output
This line selects memory address space or I/O address space.
When this line is low, the CPU selects memory address space and when it is high, the CPU
selects I/O address space.
This line is high impedance during hold acknowledge.
WR
WRITE: Output
This line indicates that the CPU is in a memory or I/O write cycle.
This line is a write strobe signal when the CPU writes data to memory or an I/O device.
This line is active low. This line is high impedance during hold acknowledge.
INTA
INTERRUPT ACKNOWLEDGE: Output
This line is a read strobe signal for the interrupt acknowledge cycle.
This line is active low.
相關(guān)PDF資料
PDF描述
MSM80C88A-10JS 8-BIT, 10 MHz, MICROPROCESSOR, PQCC44
MSM80C88A-10GS-K 8-BIT, 10 MHz, MICROPROCESSOR, PQFP56
MSM81C55-5GS-2K 22 I/O, PIA-GENERAL PURPOSE, PQFP44
MSM82C51A-2GS-VK 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PDSO32
MSM82C51A-2JS 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PQCC28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM80C88A2JS 制造商:OKI 功能描述:*
MSM8128 制造商:MOSAIC 制造商全稱:MOSAIC 功能描述:128K x 8 SRAM
MSM8128V-10 制造商:MOSAIC 制造商全稱:MOSAIC 功能描述:128K x 8 SRAM
MSM8128V-12 制造商:MOSAIC 制造商全稱:MOSAIC 功能描述:128K x 8 SRAM
MSM8128V-70 制造商:MOSAIC 制造商全稱:MOSAIC 功能描述:128K x 8 SRAM
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