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Product Detailed Parameters
- Description：IC MUX/DEMUX 2 X 4:1 16TSSOP
- Series：74CB
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Multiplexer/Demultiplexer
- Circuit：2 x 4:1
- 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：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Grade：-
- Qualification：-
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Overview
The SN74CB3Q3253PWRG4 is a dual 1-of-4 FET multiplexer/demultiplexer bus switch manufactured by Texas Instruments. It operates within a supply voltage range of 2.3V to 3.6V and features 5V tolerant I/Os. The device utilizes a charge pump to achieve low, flat ON-state resistance (typical 4Ω) and supports rail-to-rail switching. It provides high-bandwidth data paths up to 500MHz with bidirectional data flow and near-zero propagation delay.
Feature Summary
- High-bandwidth data path supporting frequencies up to 500MHz
- Rail-to-rail switching capability on data I/O ports
- Low and flat ON-state resistance characteristics over the operating range
- Support for partial-power-down mode operation via Ioff circuitry
Applications
- Video broadcasting IP-based multi-format transcoders
- Video communications systems
- USB interface connections
- Differential signal interface bus isolation
Procurement Notes
Verify that the ordering suffix 'G4' corresponds to the specific RoHS-compliant variant as defined in the manufacturer's documentation. Confirm package type PW (TSSOP-16) matches the design requirements. Ensure control inputs are tied to VCC or GND to maintain proper operation during power cycles.
Selection Notes
Select this component for applications requiring high-speed signal routing with minimal distortion. The device is suitable for broadband communications and data-intensive computing systems. Verify that the system logic levels are compatible with the TTL or CMOS control input requirements.
Part Context
This part belongs to the SN74CB3Q family of low-voltage high-bandwidth bus switches. It is functionally similar to the SN74CB3Q3253 but includes the 'G4' suffix indicating specific manufacturing compliance. It serves as a signal switch for multiplexing and demultiplexing digital and analog signals.
Replacement Considerations
Direct substitutes include SN74CB3Q3253PW and SN74CB3Q3253DBQ. Cross-reference with SN74CBT3253 for legacy compatibility, noting potential differences in package dimensions and electrical specifications.
