PROGRAMMABLE COMMUNICATION INTERFACE 28-Pin DIP Package

The 8251A is the industry standard Universal Synchronous/Asynchronous Receiver/Transmitter (USART) designed for data communications with microprocessor families such as MCS-48, 80, 85, and iAPX 86, 88. The 8251A is used as a peripheral device and is programmed by the CPU to operate using

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ROCHESTER

罗切斯特

PROGRAMMABLE INTERVAL TIMER

Description The NEC μPD8253 contains three independent, programmable, multi-model 16-bit counter/timers. It is designed as a general purpose device, fully compatible with the 8080 family. The μPD8253 interfaces directly to the buses of the processor as an array of I/O ports.

文件：419.17 Kbytes 页数：11 Pages

NEC

瑞萨

Programmable Interval Timer

OVERVIEW The D8254 is a programmable interval timer/counter, binary compatible with industry standard 82C54. The D8254 solves one of the most common problems in any microcomputer system, the generation of accurate time delays under software control. The D8254 can be used as a: ● Real time cl

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DCD

Digital Core Design

Programmable Peripheral Interface

The D8255 is a programmable I/O device which is designed for use with all Intel and most other microprocessors. It provides 24 I/O pins which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation: ● Mode 0 - Basic Input/Output. This functional configuration p

文件：125.39 Kbytes 页数：4 Pages

DCD

Digital Core Design

Programmable Peripheral Interface iAPX86 Family

GENERAL DESCRIPTION The 8255A is a general-purpose, programmable I/O device designed for use with IAPX Family microprocessors. It has 24 I/O pins which may be individually programmed two groups of twelve, and used in three major modes of operation.

文件：267.23 Kbytes 页数：5 Pages

AMD

超威半导体

PROGRAMMABLE PERIPHEAL INTERFACE

PROGRAMMABLE PERIPHERAL INTERFACE The Intel 8255A is a general purpose programmable I/O device designed for use with Intel microprocessors.

文件：1.08946 Mbytes 页数：24 Pages

Intel

英特尔

PROGRAMMABLE PERIPHEAL INTERFACE

PROGRAMMABLE PERIPHERAL INTERFACE The Intel 8255A is a general purpose programmable I/O device designed for use with Intel microprocessors.

文件：1.08946 Mbytes 页数：24 Pages

Intel

英特尔

PROGRAMMABLE PERIPHERAL INTERFACE

Description The μPD8255A-2 and μPD8255A-5 are general purpose programmable input/output devices designed for use with the 8080A/8085A microprocessors.

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NEC

瑞萨

PROGRAMMABLE PERIPHERAL INTERFACE

Description The μPD8255A-2 and μPD8255A-5 are general purpose programmable input/output devices designed for use with the 8080A/8085A microprocessors.

文件：363.19 Kbytes 页数：9 Pages

NEC

瑞萨

Programmable Interrupt Controller

OVERVIEW The D8259 is a soft Core of Programmable Interrupt Controller. It is fully compatible with the 82C59A device. The D8259 Core manages up to 8-vectored priority interrupts for processor. Programming it to cascade allows for up to 64 vectored interrupts. More than 64 vectored interrupts can

文件：131.11 Kbytes 页数：4 Pages

DCD

Digital Core Design