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DS26900

Features: · 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 Po...

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SeekIC No. : 004328903 Detail

DS26900: Features: · Efficient Solution for Star Architecture JTAG· Provides Transparent Communications Between the Arbitrated Master and a Selected Secondary Port· Single-Package Solution Provides 18 Second...

DS26900 Data Sheet

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Part Number:
DS26900
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

· 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 Applications
· Operation Up to 50MHz
· Signal Path Modification Options
· Redundancy with High-Impedance Pin
· Independent Periphery JTAG
· Configuration Mode Uses IEEE 1149.1 TAP Controller
· Supports Live Insertion/Withdrawal
· 3.3V Operation
· Industrial Temperature Operation
· RoHS-Compliant Packaging


Application

MicroTCA Chassis
ATCA Chassis
AMC Carrier Cards
JSM Modules
System Level JTAG


Specifications

Voltage Range on Any Lead with Respect to VSS (except VDD) ...........-0.3V to 5.5V
Supply Voltage Range (VDD) with Respect to VSS .................-0.3V to 3.63V
Operating Temperature Range ....................... .-40°C to +85°C
Storage Temperature Range .......................  .-55°C to +126°C
Soldering Temperature................. See IPC/JEDEC J-STD-020 specification.


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.

The DS26900 can be used in multiple configurations including as a single device, two cascaded devices, or two redundant devices.

All device pf DS26900 control and configuration is accomplished through standard JTAG operations via the selected master port




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