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DS26900 Datasheet JTAG Multiplexer/Switch

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The DS26900 is a JTAG signal multiplexer providing connectivity between one of three master ports and up to 18 (36 in cascade configuration) secondary ports.

The device is fully configurable from any one of the three master ports.

The DS26900 can automatically detect the presence JTAG devices on the secondary ports.

Overview

www.DataSheet4U.com Rev: 072707 DS26900 JTAG Multiplexer/Switch General.

Key Features

  • es Efficient Solution for Star Architecture JTAG Provides Transparent Communications Between the Arbitrated Master and a Selected Secondary Port Single-Package Solution Provides 18 Secondary Ports Two-Package Cascade Configuration Provides 36 Secondary Ports Three Arbitrated Master Ports Autodetection of Port Presence Internal Pullup/Down Resistors Two 32-Bit Scratchpad Registers Four GPIO Pins for Read/Write Control and Signaling.

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