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Product Detailed Parameters
- Description：IC MUX 8:1 400OHM 16TSSOP
- 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-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The MC74HCT4851ADTG is an analog multiplexer/demultiplexer from onsemi's 74HCT logic family, housed in a 16-SOIC surface-mount package. It operates with a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 20 MHz. The device features TTL-compatible inputs and CMOS outputs, ensuring compatibility with LSTTL logic levels. Key electrical parameters include a maximum propagation delay of 35 ns at 5 V and a low quiescent current of 2 µA. It provides eight selectable channels controlled by three address lines, with an active-low enable input for power management.
Feature Summary
- TTL-compatible inputs allow direct interfacing with LSTTL logic systems without level shifting.
- Injection current effect control minimizes signal distortion during channel switching.
- Active-low enable pin facilitates easy cascading and power-down modes.
Applications
- Data acquisition systems requiring multi-channel signal selection
- Telecommunications equipment for signal routing
- Industrial control systems for sensor multiplexing
Procurement Notes
Verify the suffix 'G' indicates RoHS compliance and halogen-free construction per onsemi standards. Confirm the 'DTG' suffix corresponds to the 16-SOIC tube packaging format. Check for any specific environmental certifications or REACH status updates in the latest datasheet revision before finalizing procurement specifications.
Selection Notes
Select this component when TTL-level interface compatibility is required alongside HC-speed performance. Ensure the 16-SOIC package fits the PCB layout constraints. Compare against MC74HC4851ADTG if CMOS-only input compatibility suffices, as HCT variants offer broader logic family interoperability. Verify thermal dissipation requirements for the SOIC package under continuous operation.
Part Context
This part belongs to the MC74HCT4851A series of analog multiplexers. It shares functional similarities with the MC74HC4851ADTR2G but differs in packaging (tube vs. tape/reel) and input drive characteristics due to the HCT logic family. It serves as a digital-to-analog signal routing solution within standard 5V logic environments.
Replacement Considerations
MC74HC4851ADTR2G offers identical logical function but uses tape-and-reel packaging and HC input thresholds. MC74HCT4852ADR2G provides a 16:1 configuration instead of 8:1. Direct pin-for-pin replacement requires verifying input voltage tolerance differences between HC and HCT families.
