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NXP Semiconductors 74HCT4051PW,112
- Part No.:
- 74HCT4051PW,112
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
74HCT4051PW,112.pdf
- Description:
- NEXPERIA 74HCT4051PW - SINGLE-EN
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Product details
Overview
74HCT4051PW,112 from Nexperia is an 8-channel analog multiplexer/demultiplexer (SP8T) with TTL-compatible inputs, 4.5 V to 5.5 V supply operation, 60 Ω typical ON resistance at ±4.5 V analog rails, -40 °C to +125 °C temperature range, and TSSOP16 package. It routes bidirectional analog or digital signals in data acquisition systems requiring channel selection under logic control.
For engineers reviewing the 74HCT4051PW,112 datasheet, 74HCT4051PW,112 pinout, 74HCT4051PW,112 application, or 74HCT4051PW,112 equivalent, key selection criteria include its rail-to-rail analog voltage handling (±5 V), low ON-resistance mismatch (6 Ω max), break-before-make switching, and compatibility with 5 V microcontroller GPIOs driving S0–S2 and E.
Technical Context
The 74HCT4051PW,112 integrates a 3-bit binary decoder driving eight transmission gates, each with complementary MOSFET pairs enabling bidirectional signal flow between Yn and Z terminals. Its TTL-input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V) ensure reliable interfacing with standard 5 V logic families.
Operation requires dual supplies: VCC (4.5–5.5 V) for logic and switch control, and VEE (typically 0 V or –5 V) to set the negative analog rail. The enable input (E, active LOW) globally disables all channels, while clamp diodes on all digital inputs allow safe interfacing to voltages exceeding VCC when current-limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 4.5 V to 5.5 V - ensures compatibility with standard 5 V logic systems and stable gate drive across industrial temperature range. |
| ON Resistance (RON) | 60 Ω typical at VCC = 4.5 V, VEE = –4.5 V - enables low insertion loss for ±4.5 V analog signals in sensor multiplexing. |
| Channel Count | 8 independent Yn terminals + common Z - supports 8:1 analog MUX/DEMUX routing without external decoding logic. |
| Turn-on Time (ton) | 16 ns typical at VCC = 4.5 V, VEE = –4.5 V - allows sub-50 MHz channel switching in high-speed data sampling applications. |
| Isolation (OFF-state) | –50 dB at 1 MHz - suppresses crosstalk between inactive channels in multi-sensor monitoring systems. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and motor control environments. |
| Input Logic Compatibility | TTL-level (VIH ≥ 2.0 V, VIL ≤ 0.8 V) - directly driven by legacy 5 V microcontrollers and FPGAs without level shifters. |
Pinout & Package
74HCT4051PW,112 is housed in a 16-lead TSSOP package (SOT403-1), 4.4 mm body width, 0.65 mm pitch, with exposed pad not electrically connected. Pin 1 index located at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Y4 | Independent analog I/O channel - connects to fourth sensor or signal source in 8-channel scan sequence. |
| 2 | VCC | Positive supply for logic and switch control - must be decoupled locally to minimize switching noise coupling into analog paths. |
| 3 | Y6 | Independent analog I/O channel - used for sixth input/output in sequential multiplexing schemes. |
| 4 | Y2 | Independent analog I/O channel - selected when S2S1S0 = 010 per function table. |
| 5 | Z | Common analog I/O terminal - serves as single-ended output in MUX mode or input in DEMUX mode. |
| 6 | Y1 | Independent analog I/O channel - activated when S2S1S0 = 001; shares same electrical characteristics as all Yn pins. |
| 7 | Y7 | Independent analog I/O channel - highest-numbered channel, selected with S2S1S0 = 111. |
| 8 | Y0 | Independent analog I/O channel - default channel enabled when all select lines are LOW. |
| 9 | Y5 | Independent analog I/O channel - selected with S2S1S0 = 101; matches timing and RON specs of other Yn pins. |
| 10 | Y3 | Independent analog I/O channel - activated when S2S1S0 = 011; supports rail-to-rail analog swing. |
| 11 | E | Active-LOW enable - drives all switches OFF when HIGH; allows global channel disable without changing select lines. |
| 12 | S0 | LSB select input - TTL-compatible; controls bit 0 of 3-bit binary address for channel selection. |
| 13 | VEE | Negative analog supply - sets lower rail for bidirectional analog signal range (e.g., –5 V for ±5 V operation). |
| 14 | S1 | Mid-bit select input - TTL-compatible; controls bit 1 of 3-bit binary address. |
| 15 | GND | Ground reference - return path for logic and analog currents; must be star-connected to minimize ground bounce. |
| 16 | S2 | MSB select input - TTL-compatible; controls bit 2 of 3-bit binary address (S2S1S0). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog range | Supports ±5 V signals with VCC = 4.5 V and VEE = –4.5 V - eliminates need for external level-shifting in mixed-signal front-ends. |
| Break-before-make switching | Prevents momentary shorting between Yn channels during address transitions - critical for avoiding signal glitches in precision measurement systems. |
| Low ON-resistance mismatch | ΔRON ≤ 6 Ω across all 8 channels at VCC = 4.5 V, VEE = –4.5 V - ensures consistent gain and minimal channel-to-channel error in calibrated sensor arrays. |
| High OFF-isolation | –50 dB at 1 MHz between enabled and disabled channels - maintains signal integrity in high-density analog routing where adjacent traces carry different sources. |
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5 V - enables direct connection to legacy 5 V MCUs, CPLDs, and logic families without interface circuitry. |
| ESD robustness | HBM > 2000 V, CDM > 1000 V - withstands handling and board-level ESD events common in industrial assembly and field service. |
Applications
| Industrial Sensor Multiplexing | Automotive Battery Monitoring |
|---|---|
Use Scenario: A PLC module reads voltage outputs from eight thermocouples or RTDs using a single ADC channel. IC Role / Device Role / Timing Role: 74HCT4051PW,112 acts as an analog front-end multiplexer, sequentially connecting each sensor to the ADC input under microcontroller control via S0–S2 and E. Use Value: Enables cost-effective 8-sensor monitoring with one precision ADC, leveraging 60 Ω RON and <12 ns propagation delay to maintain measurement accuracy and throughput. | Use Scenario: An EV battery management system monitors individual cell voltages across a 96-cell pack using grouped sensing circuits. IC Role / Device Role / Timing Role: 74HCT4051PW,112 selects one of eight cell voltage inputs per BMS slave IC, operating with VCC = 5 V and VEE = 0 V for unipolar 0–5 V ranges. Use Value: Provides guaranteed –40 °C to +125 °C operation and <100 ns max turn-off time to support fast cell balancing verification cycles. |
| Test Equipment Signal Routing | Medical Patient Monitoring |
Use Scenario: A benchtop multimeter or oscilloscope accessory routes test signals from multiple DUTs to a shared measurement engine. IC Role / Device Role / Timing Role: 74HCT4051PW,112 functions as a reconfigurable analog switch matrix, controlled by FPGA GPIOs to assign any Yn to Z based on user selection. Use Value: Delivers <0.02% sine-wave distortion at 8 VPP and –50 dB isolation, preserving signal fidelity during automated test sequencing. | Use Scenario: A portable ECG device conditions and digitizes leads I, II, III, aVR, aVL, aVF, V1–V6 using a single analog front-end chain. IC Role / Device Role / Timing Role: 74HCT4051PW,112 multiplexes 12 lead electrodes into six differential amplifier inputs, with E-driven blanking during lead switching. Use Value: Break-before-make action prevents transient artifacts on ECG waveforms; 180 MHz –3 dB bandwidth supports accurate R-wave detection and ST-segment analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC4051PW,112 | CMOS logic inputs (VIH = 3.15 V min at VCC = 4.5 V); wider VCC range (2–10 V); higher RON at 5 V (~80 Ω typical) | Better suited for mixed-voltage systems where logic supply may differ from analog rails | Select when interfacing with 3.3 V or variable-voltage controllers; verify VIH/VIL margins against driver output levels. |
| ADG708BRUZ | CMOS process; 3 V to 5.5 V single supply; 3.5 Ω typical RON at 5 V; SPI interface instead of parallel S0–S2 | Requires serial configuration; no native enable pin; optimized for low-RON, low-power portable devices | Choose for ultra-low on-resistance and integrated serial control in space-constrained designs; accept added firmware overhead. |
Compared with 74HC4051PW,112 and ADG708BRUZ, the 74HCT4051PW,112 offers deterministic TTL-compatible timing and pin-strapped parallel addressing ideal for real-time deterministic systems, whereas the HC variant suits flexible supply architectures and the ADG708 provides superior RON with serial configurability.
Availability
74HCT4051PW,112 is available at Aetrix Electronics and suitable for industrial automation, automotive battery monitoring, and medical patient monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT4051PW,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with a focus on reliability, efficiency, and automotive-grade qualification.
The 74HCT4051PW,112 belongs to Nexperia's 74HCT logic family, engineered for robust 5 V TTL-compatible operation in industrial and automotive environments where noise immunity and wide temperature tolerance are essential.
FAQ
What is the maximum analog signal voltage range supported by the 74HCT4051PW,112?
The 74HCT4051PW,112 supports analog signals from VEE to VCC. With VCC = 4.5 V and VEE = –4.5 V, it handles ±4.5 V signals; with VCC = 5.5 V and VEE = 0 V, it supports 0 V to 5.5 V. Absolute maximum ratings allow VSW between –0.5 V and VCC + 0.5 V, but full specified performance is within VEE to VCC.
Does the 74HCT4051PW,112 require external pull-up or pull-down resistors on its select lines (S0–S2)?
No, the 74HCT4051PW,112 does not require external biasing on S0, S1, or S2. Its TTL-compatible inputs have defined VIH (≥2.0 V) and VIL (≤0.8 V) thresholds at VCC = 5 V, and internal input leakage remains ≤±0.1 μA at 25 °C, allowing direct connection to microcontroller GPIOs without pull resistors.
Can the 74HCT4051PW,112 operate with VCC = 3.3 V?
No, the 74HCT4051PW,112 is not characterized or guaranteed for operation at VCC = 3.3 V. Its recommended operating conditions specify VCC = 4.5 V to 5.5 V. For 3.3 V systems, consider the 74LVC4051 or 74AUP1G3157, as the HCT family's TTL input thresholds are optimized for 5 V logic compatibility.
How does the enable pin (E) affect power consumption in the 74HCT4051PW,112?
When E is HIGH, all internal switches are fully OFF, reducing supply current to ≤±0.4 μA (typical ICC) at 25 °C. This state minimizes dynamic and leakage power, making the 74HCT4051PW,112 suitable for low-power sleep modes in battery-operated equipment while maintaining pin-state retention.
Is the 74HCT4051PW,112 pin-compatible with the 74HC4051PW,112?
Yes, the 74HCT4051PW,112 and 74HC4051PW,112 share identical TSSOP16 (SOT403-1) packaging and pinout. However, they differ in input threshold specifications: HCT uses TTL-compatible inputs (VIH ≥ 2.0 V), while HC uses CMOS thresholds (VIH ≥ 3.15 V at VCC = 4.5 V). Swapping requires verifying driver voltage levels.
74HCT4051PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HCT4051PW,112 FAQ
1.How can I place an order for 74HCT4051PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT4051PW,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 74HCT4051PW,112 reliable?
The price and inventory of 74HCT4051PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT4051PW,112 is usually 5 days.
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74HCT4051PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT4051PW,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 74HCT4051PW,112?
For technical support, including 74HCT4051PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT4051PW,112 requirements.
6.How does Aetrix verify that 74HCT4051PW,112 is sourced from the original manufacturer or authorized distributors?
All 74HCT4051PW,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74HCT4051PW,112 meets industry standards.
7.What is the process for return or replacement of 74HCT4051PW,112?
All 74HCT4051PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT4051PW,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 74HCT4051PW,112 part is unused and in its original packaging.
Return procedure for 74HCT4051PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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