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參數(shù)資料
| 型號(hào)： | MSM81C55-5RS |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER |
| 中文描述： | 2048位CMOS靜態(tài)RAM與I / O端口和定時(shí)器 |
| 文件頁(yè)數(shù)： | 14/19頁(yè) |
| 文件大小： | 156K |
| 代理商： | MSM81C55-5RS |
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Semiconductor
MSM81C55-5RS/GS/JS
(6) Standby Mode (see page 7)
The MSM81C55-5 is placed in standby mode when the high level at the
CE
input is latched
during the negative going edge of ALE. All input ports and the timer input should be pulled
up or down to either V
CC
or GND potential.
When using battery back-up, all ports should be set low or in input port mode. The timer
output should be set low. Otherwise, a buffer should be added to the timer output and the
battery should be connected to the power supply pins of the buffer.
By setting the reset input to a high level, the standby mode can be selected. In this case, the
command register is reset, so the ports automatically set to the input mode and the timer
stops.
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PDF描述 |
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| MSM81C55-5 | 2k-bit Static RAM (256 bytes) With Parallel I/O Ports And A Timer(擴(kuò)展CPU的RAM、定時(shí)器和I/O口) |
| MSM82C37B-5GS | PROGRAMMABLE DMA CONTROLLER |
| MSM82C43 | INPUT/OUTPUT PORT EXPANDER |
| MSM82C51A-2GS | UNIVERSAL SYNCHRONOUS ASYNCHRONOUS RECEIVER TRANSMITTER |
| MSM82C51A-2JS | UNIVERSAL SYNCHRONOUS ASYNCHRONOUS RECEIVER TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MSM82C37B-5GS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:PROGRAMMABLE DMA CONTROLLER |
| MSM82C37B-5JS | 制造商:OK International 功能描述:4 CHANNEL(S), 5 MHZ, DMA CONTROLLER, PQCC44 |
| MSM82C37B-5RS | 制造商:OK International 功能描述:4 CHANNEL(S), 5 MHz, DMA CONTROLLER, PDIP40 |
| MSM82C37B-5VJS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:PROGRAMMABLE DMA CONTROLLER |
| MSM82C43 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:INPUT/OUTPUT PORT EXPANDER |
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