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Product Detailed Parameters
- Description：SINGLE-ENDED MUX, 8 CHANNEL
- Series：74HC
- Mfr：NXP USA Inc.
- Package：Bulk
- Switch Circuit：SP8T - Open/Closed
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：120Ohm
- Channel-to-Channel Matching (ΔRon)：6Ohm
- Voltage - Supply, Single (V+)：2V ~ 10V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：51ns, 42ns
- -3db Bandwidth：180MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：3.5pF
- Current - Leakage (IS(off)) (Max)：400nA
- Crosstalk：-
- Operating Temperature：-40°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 74HC4051PW/S999118 is a single-pole octal-throw analog switch manufactured by Nexperia, distributed under the NXP brand. It functions as an 8:1 multiplexer or demultiplexer with three digital select inputs (S0, S2), eight independent I/Os (Yn), and a common I/O (Z). The device operates on a single supply voltage of 2V to 10V or dual supplies of ±1.5V to ±5V. Key electrical parameters include a maximum on-resistance of 120Ω, channel-to-channel matching of 6Ω, and a -3dB bandwidth of 180MHz. Switching times are specified at 51ns (Ton) and 42ns (Toff). It is housed in a 16-TSSOP package and supports an operating temperature range from -40°C to 125°C.
Feature Summary
- Provides eight independent bidirectional analog switches controlled by three digital address lines for signal routing.
- Features clamp diodes on all inputs to allow safe interfacing with voltages exceeding the supply rails when current-limiting resistors are used.
- Ensures high noise immunity and low power dissipation through CMOS technology compliant with JEDEC standards.
Applications
- Analog or digital 8:1 multiplexer/demultiplexer circuits
- Signal routing in data acquisition systems
- Audio signal switching applications
Procurement Notes
Verify the manufacturer designation carefully, as the component is produced by Nexperia but often listed under NXP branding in distribution channels. Confirm the specific suffix /S999118 corresponds to the intended packaging variant, such as tape and reel or cut tape, as ordering codes may vary by distributor. Ensure compatibility with the required 16-TSSOP footprint during PCB layout verification.
Selection Notes
Select this component for applications requiring an 8-channel analog switch with low on-resistance and wide voltage operation up to 10V single supply. Consider the 120Ω maximum Ron for signal integrity requirements and verify that the 180MHz bandwidth meets the frequency specifications of the signals being routed. The -40°C to 125°C temperature range supports industrial environments.
Part Context
This part belongs to the 74HC4051 family of analog multiplexers. It shares functional similarities with other members like the 74HC4052 (dual 4:1) and 74HC4053 (triple 2:1/4:1). The PW suffix indicates the TSSOP package type. The device is part of the standard 74HC logic series, ensuring compatibility with other HC-family components in mixed-signal designs.
Replacement Considerations
Direct substitutes include the 74HC4051D from NXP/Nexperia in SOIC-16 packaging, noting potential differences in on-resistance specifications. Other compatible alternatives within the same family include the 74HCT4051 for TTL-compatible logic levels. Verify pinout and electrical characteristics against the original design requirements before substitution.
