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參數(shù)資料
| 型號： | MSM81C55-5GS-2K |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 22 I/O, PIA-GENERAL PURPOSE, PQFP44 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 147K |
| 代理商： | MSM81C55-5GS-2K |
1/19
Semiconductor
MSM81C55-5RS/GS/JS
GENERAL DESCRIPTION
The MSM81C55-5 has a 2k-bit static RAM (256 bytes) with parallel I/O ports and a timer. It uses
silicon gate CMOS technology and consumes a standby current of 100 micro ampere, maximum,
while the chip is not selected. Featureing a maximum access time of 400 ns, the MSM81C55-5
can be used in an MSM80C85AH system without using wait states. The parallel I/O consists
of two 8-bit ports and one 6-bit port (both general purpose).
The MSM81C55-5 also contains a 14-bit programmable counter/timer which may be used for
sequence-wave generation or terminal count-pulsing.
FEATURES
High speed and low power achieved with silicon gate CMOS technology
256 words x 8bits RAM
Single power supply, 3 to 6 V
Completely static operation
On-chip address latch
8-bit programmable I/O ports (port A and B)
TTL Compatible
RAM data hold characteristic at 2 V
6-bit programmable I/O port (port C)
14-bit programmable binary counter/timer
Multiplexed address/data bus
Direct interface with MSM80C85AH
40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM81C55-5RS)
44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM81C55-5JS)
44-pin Plastic QFP (QFP44-P-910-0.80-2K): (Product name: MSM81C55-5GS-2K)
FUNCTIONAL BLOCK DIAGRAM
Semiconductor
MSM81C55-5RS/GS/JS
2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER
IO/M
AD0 - 7
CE
ALE
RD
WR
RESET
TIMER IN
TIMER OUT
Timer
256 8
Static
RAM
A
B
C
8
6
Port A
Port B
Port C
PA0 - 7
PB0 - 7
PC0 - 5
VCC (+5 V)
GND (0 V)
E2O0014-27-X2
This version: Jan. 1998
Previous version: Aug. 1996
This product is not available in Asia and Oceania.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM82C51A-2GS-VK | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PDSO32 |
| MSM82C51A-2JS | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PQCC28 |
| MSM82C51A-2GS-K | 1 CHANNEL(S), 64K bps, SERIAL COMM CONTROLLER, PDSO32 |
| MSM82C53-2GS-K | 3 TIMER(S), PROGRAMMABLE TIMER, PDSO32 |
| MSM82C53-2RS | 3 TIMER(S), PROGRAMMABLE TIMER, PDIP24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM81C55-5JS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER |
| MSM81C55-5RS | 制造商:ROHM Semiconductor 功能描述: 制造商:OK International 功能描述: |
| 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 |
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