SN74CB3Q3245DGVR

$0.75

Description：IC BUS SWITCH 8 X 1:1 20TVSOP
Series：74CB
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8a700b32fd8e Category: Signal Switches, Multiplexers, Decoders Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC BUS SWITCH 8 X 1:1 20TVSOP
Series：74CB
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Bus Switch
Circuit：8 x 1:1
Independent Circuits：1
Current - Output High, Low：-
Voltage Supply Source：Single Supply
Voltage - Supply：2.3V ~ 3.6V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-TFSOP (0.173", 4.40mm Width)
Supplier Device Package：20-TVSOP
Grade：-
Qualification：-

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SN74CB3Q3245DGVR

Overview

The SN74CB3Q3245DGVR is an 8-bit FET bus switch from Texas Instruments, housed in a 20-pin TVSOP package. It operates within a supply voltage range of 2.3V to 3.6V and supports data I/O voltages up to 5.5V. The device features a typical ON-state resistance (ron) of 4Ω and low input/output capacitance of 3.5pF. It provides bidirectional data flow with near-zero propagation delay and includes undershoot clamp diodes on control inputs.

Feature Summary

High-bandwidth data path supporting frequencies up to 500MHz
5V tolerant I/Os compatible with various signaling levels regardless of VCC state
Low and flat ON-state resistance characteristics over the operating temperature range
Rail-to-rail switching capability on data ports for both 2.5V and 3.3V supplies

Applications

PCI Interface
Differential Signal Interface
Memory Interleaving
Bus Isolation
Low-Distortion Signal Gating

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the base part number covers multiple configurations. Confirm the moisture sensitivity level and reflow temperature profile align with assembly capabilities. Ensure the RoHS status and lead finish meet environmental compliance requirements for the target market.

Selection Notes

Select this component for applications requiring high bandwidth and minimal signal distortion. The charge pump mechanism ensures consistent ON-state resistance across the full voltage range. Verify that the control input voltage levels are compatible with the system logic family. Consider the thermal impedance characteristics if operating in high-density environments.

Part Context

This device belongs to the SN74CB3Q series of high-performance bus switches designed for broadband communications and data-intensive computing systems. It utilizes a charge pump to elevate gate voltage, optimizing performance for low-voltage operations while maintaining compatibility with higher voltage interfaces.

Replacement Considerations

The datasheet explicitly states the device is equivalent to the IDTQS3VH384 component. Designers should verify pinout compatibility and electrical specifications when substituting this part with other octal bus switches or similar interface devices from different manufacturers.

How to buy

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Delivery time

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Freight calculation

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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.