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Product Detailed Parameters
- Description：IC MUX 8:1 400OHM 16SOIC
- Series：-
- Mfr：onsemi
- Package：Tube
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：400Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：4.5V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：40pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The MC74HCT4851ADG is an 8-to-1 multiplexer/demultiplexer from the onsemi 74HCT logic family, housed in a 16-SOIC surface-mount package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55°C to +125°C. The device features a propagation delay of 30 ns at 5 V with a 50 pF load, ensuring fast signal switching. It provides a low on-resistance of 70 Ω and high input impedance, making it suitable for precise analog and digital signal routing applications.
Feature Summary
- Compatible with TTL logic levels due to HCT series design
- Wide operating temperature range for industrial environments
- Low on-resistance for minimal signal attenuation
- High input impedance reducing loading effects
Applications
- Data acquisition systems requiring signal selection
- Industrial control panels for sensor routing
- Telecommunications equipment signal path management
- Test and measurement instruments multiplexing inputs
Procurement Notes
Verify the specific suffix 'DG' indicates tube packaging when ordering. Confirm RoHS compliance status as manufacturing processes may update environmental declarations. Check for lead-free certification if required by project specifications. Ensure the 16-SOIC footprint matches the PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when interfacing with TTL-compatible logic families requiring 8-channel multiplexing. The HCT series ensures compatibility with standard 5V logic levels. Consider the 70 Ω on-resistance for analog signal integrity requirements. Verify that the 16-pin SOIC package fits the available board space and thermal management strategy.
Part Context
This part belongs to the 74HC/HCT4851 family of 8-line data selectors/multiplexers. It shares functional similarities with the HC variant but offers TTL-compatible input thresholds. The device is commonly used in conjunction with other 74-series logic components for complex digital system architectures requiring efficient data routing.
Replacement Considerations
The MC74HC4851ADG serves as a CMOS alternative with similar pinout but different input threshold characteristics. Other manufacturers offer equivalent 8:1 multiplexers in SOIC-16 packages; verify electrical parameters such as propagation delay and on-resistance before substitution.
