مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

The DP8340/NS32440 generates a complete encoding of parallel data for high speed serial transmission which conforms to the protocol as defined by the IBM 3270 information display system standard. The DP8340/NS32440 converts parallel input data into a serial data stream. Although the IBM standard covers biphase serial data transmission over a coax line, the DP8340/NS32440 also adapts to general high speed serial data transmission over other than coax lines, at frequencies either higher or lower than the IBM standard.

Features

• Ten bits per data byte transmission
• Single-byte or multi-byte transmission
• Internal parity generation (even or odd)
• Internal crystal controlled oscillator used for the generation of all required chip timing frequencies
• Clock output directly drives receiver (DP8341) clock input
• Input data holding register
• Automatic clear status response feature
• Line drivers at data outputs provide easy interface to biphase coax line or general transmission lines
• <z ns driver output skew
• Bipolar technology provides TTL input/output compatibility
• Data outputs power up/down glitch free
• Internal power up clear and reset
• Single +5V power supply