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| 型号： | MSM80C88A-10 |
| 厂商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 8-Bit CMOS Microprocessor(内部结构为16位,外围接口8位,8位微处理器) |
| 中文描述： | 8位CMOS微处理器（内部结构为16位，外围接口8位，8位微处理器） |
| 文件页数： | 17/37页 |
| 文件大小： | 270K |
| 代理商： | MSM80C88A-10 |
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Semiconductor
MSM80C88A-10RS/GS/JS
RQ
/GT
0
RQ
/GT
1
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.
QS
0
/QS
1
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
Empty the Queue
Subsequent Byte from Queue
0 (LOW)
No operation
QS
1
1
0
1
0
QS
0
Characteristics
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.
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PDF描述 |
|---|---|
| MSM82C37B-5RS | Programmable DMA Controller(可编程DMA控制器) |
| MSM82C37B-5VJS | Programmable DMA Controller(可编程DMA控制器) |
| MSM82C51A-2(中文) | Universal Synchronous Asynchronous Receiver Transmitter(通用同步/异步接收发送器,同步通讯最高可达64Kbps,异步通讯最高可达38.4Kbps) |
| MSM82C51A-2 | Universal Synchronous Asynchronous Receiver Transmitter(通用同步/异步接收发送器,同步通讯最高可达64Kbps,异步通讯最高可达38.4Kbps) |
| MSM82C53-2 | Programmable Universal Timers(可编程中断定时器,最高计数频率8MHz) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSM80C88A-10GS | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:8-Bit CMOS MICROPROCESSOR |
| MSM80C88A-10JS | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:8-Bit CMOS MICROPROCESSOR |
| MSM80C88A-10RS | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:8-Bit CMOS MICROPROCESSOR |
| MSM80C88A2JS | 制造商:OKI 功能描述:* |
| MSM8128 | 制造商:MOSAIC 制造商全称:MOSAIC 功能描述:128K x 8 SRAM |
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