P8251A-G

$23.51

Description：P8251A-G
Series：*

SKU:2d9607ac68e4 Category: UARTs (Universal Asynchronous Receiver Transmitter) Brand: Rochester Electronics, LLC

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Product introduction

Product Detailed Parameters

Description：P8251A-G
Series：*
Mfr：Rochester Electronics, LLC
Package：Bulk
Features：-
Number of Channels：-
FIFO's：-
Protocol：-
Data Rate (Max)：-
Voltage - Supply：-
With Auto Flow Control：-
With IrDA Encoder/Decoder：-
With False Start Bit Detection：-
With Modem Control：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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P8251A-G

Overview

The P8251A-G is a programmable communication interface manufactured by Rochester Electronics, LLC. It functions as a Universal Synchronous/Asynchronous Receiver/Transmitter (USART) designed for data communications with microprocessor families including MCS-48, 80, 85, and iAPX 86, 88. The device accepts parallel data characters from the CPU and converts them into a continuous serial data stream for transmission. Simultaneously, it receives serial data streams and converts them into parallel data characters for the CPU. It signals the CPU upon accepting new characters or receiving completed ones. The chip supports virtually any serial data transmission technique currently in use.

Feature Summary

Supports synchronous and asynchronous serial data transmission modes
Provides status signaling to the CPU for data readiness and error detection
Compatible with standard Intel microprocessor families

Applications

Data communication peripherals for MCS-48 microprocessors
Serial interface modules for 80 and 85 series processors
Communication interfaces for iAPX 86 and 88 systems

Part Context

The P8251A-G is part of the P8251A product line, which serves as an industry-standard USART. This component is fabricated using high-performance HMOS technology. It is distributed by Rochester Electronics, LLC, often serving as a source for legacy components no longer in primary production.

Replacement Considerations

The TMP82C51A from Toshiba Semiconductor is listed as a similar function alternative. Designers should verify pinout compatibility and electrical specifications against the original system requirements before substitution.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.