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~National
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~ Semiconductor
AUGUST 1978 Pub. No. 426305429-001 A
INS8251 Programmable Communication Interface
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General Description
Features
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The INSB251 is a programmable Universal Synchronous/
• Synchronous and Asynchronous Full Duplex
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Asynchronous Receiver/Transmitter (USART) chip contained in a standard 2B-pin dual-in-line package_ The
Operations • Synchronous Mode Capabilities
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chip, which is fabricated using N-channel silicon gate technology, functions as a serial data input/output interface in National Semiconductor's NBOBO micro-
- Selectable 5- to B-Bit Characters - Internal or External Character Synchronization - Automatic Sync Insertion
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CD
computer family.