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NXP Semiconductors 74HCT4066N,112
- Part No.:
- 74HCT4066N,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
74HCT4066N,112.pdf
- Description:
- IC SWITCH SPST-NOX4 20OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,823
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Product details
Overview
74HCT4066N,112 from Nexperia is a quad SPST analog switch IC with TTL-compatible enable inputs, 45 Ω typical ON resistance at 5 V, ±25 mA switch current rating, and operation from -40 °C to +125 °C. It routes analog or digital signals in test equipment multiplexers, audio signal switching, and sensor interface conditioning circuits.
For engineers reviewing the 74HCT4066N,112 datasheet, 74HCT4066N,112 pinout, 74HCT4066N,112 application, or 74HCT4066N,112 equivalent, key selection criteria include TTL-level enable compatibility, 5 V supply operation, SO14 package thermal performance, low crosstalk (-60 dB), and guaranteed 18 ns max turn-on time across temperature.
Technical Context
The 74HCT4066N,112 implements four independent bidirectional analog switches, each controlled by an active-HIGH TTL-compatible enable (nE). Each channel features clamp diodes on Y/Z terminals, enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
Switch conduction is governed solely by nE logic state: HIGH enables low-resistance conduction (RON ≤ 128 Ω over full temp/voltage range), LOW forces high-impedance OFF-state with leakage < ±1.0 μA. No internal level-shifting or bias circuitry is present - operation is strictly rail-to-rail within GND–VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - matches standard 5 V TTL systems without regulation overhead |
| ON resistance (typ) | 45 Ω at VCC = 6.0 V - ensures minimal signal attenuation for 0–5 V analog signals |
| Turn-on time (max) | 30 ns at VCC = 4.5 V, -40 °C to +125 °C - supports >10 MHz digital switching in data acquisition |
| Crosstalk | -60 dB at 1 MHz - prevents coupling between active and inactive channels in multi-signal routing |
| OFF-state leakage | ±1.0 μA max - preserves signal integrity in high-impedance sensor front-ends |
| ESD rating | HBM >2000 V, CDM >1000 V - withstands handling and board-level ESD per JEDEC JS-001/JS-002 |
| Operating temp | -40 °C to +125 °C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
74HCT4066N,112 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm pitch, 1.75 mm max height. Pin 1 index located at top-left corner with notch marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y, 2Y, 3Y, 4Y | Switch terminal A | Bidirectional analog/digital I/O; interchangeable with Z pins; no polarity constraint |
| 1Z, 2Z, 3Z, 4Z | Switch terminal B | Bidirectional analog/digital I/O; interchangeable with Y pins; no polarity constraint |
| 1E, 2E, 3E, 4E | Enable input | TTL-compatible active-HIGH control; VIH ≥ 2.0 V, VIL ≤ 0.8 V at 5 V |
| VCC | Positive supply | 5 V nominal; absolute max 11 V; decoupling capacitor required at pin 14 |
| GND | Ground reference | 0 V return for all switch paths and logic; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible enables | Accepts standard 5 V logic thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), eliminating level shifters in mixed-logic systems |
| Rail-to-rail analog switching | Supports continuous DC to 200 MHz signals from GND to VCC without distortion or clipping |
| Input clamp diodes | Enables safe overvoltage tolerance on Y/Z pins up to VCC + 0.5 V when series current limiting is applied |
| Low dynamic power | 12 pF CPD per switch minimizes switching current draw in high-frequency multiplexing applications |
| Thermal robustness | Rated for full -40 °C to +125 °C operation with derated power dissipation above 100 °C (10.1 mW/K) |
Applications
| Test Equipment Multiplexer | Audio Signal Routing |
|---|---|
Use Scenario: Automated test system selects one of 16 sensor inputs for ADC sampling using parallel 74HCT4066N,112 devices. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-crosstalk signal path selection under microcontroller GPIO control. Use Value: 45 Ω RON ensures <0.1% gain error in 12-bit measurement; -60 dB crosstalk prevents adjacent-channel interference during simultaneous multi-channel scan. | Use Scenario: Consumer audio mixer routes line-level stereo signals between inputs (mic, aux, Bluetooth) and outputs (headphone, speaker). IC Role / Device Role / Timing Role: Bidirectional analog switch enabling zero-crossing mute transitions and channel isolation. Use Value: 0.04% THD at 1 kHz preserves audio fidelity; rail-to-rail operation handles ±2 V peak signals without clipping. |
| Sensor Interface Conditioning | Industrial PLC I/O Module |
Use Scenario: Multi-sensor node conditions thermocouple, RTD, and strain gauge outputs before feeding shared instrumentation amplifier. IC Role / Device Role / Timing Role: Signal path selector isolating high-impedance sensors from shared signal chain during calibration cycles. Use Value: ±1.0 μA OFF-leakage prevents bias current errors in 10 MΩ+ sensor bridges; clamp diodes protect against ESD during field wiring. | Use Scenario: Modular PLC backplane routes analog voltage/current inputs from field transmitters to isolated ADC channels. IC Role / Device Role / Timing Role: Analog multiplexer enabling flexible I/O configuration via firmware-controlled enable lines. Use Value: -50 dB isolation at 1 MHz blocks noise coupling from 24 V digital backplane; 125 °C rating supports enclosure mounting near motor drives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC4066N,112 | CMOS-level enables (VIH ≥ 3.15 V @ 4.5 V); higher RON at 5 V (≤128 Ω vs. 45 Ω) | Requires 5 V logic driver; less suitable for direct TTL microcontroller interfacing | Select when system uses CMOS logic family and lower supply current (<20 μA ICC) is prioritized |
| TS5A23157DCUR | Single-supply 1.65–5.5 V operation; 0.9 Ω RON at 3.3 V; 10-pin VSSOP package | Not pin-compatible; requires PCB redesign; superior RON but limited to single-pole double-throw topology | Choose for ultra-low RON in 3.3 V systems where layout change is acceptable and SPDT functionality suffices |
Compared with 74HC4066N,112 and TS5A23157DCUR, the 74HCT4066N,112 uniquely delivers TTL-compatible enables in a quad SPST SO14 package with verified -60 dB crosstalk and 125 °C operation - critical for industrial multiplexing where logic interoperability and thermal margin are non-negotiable.
Availability
74HCT4066N,112 is available at Aetrix Electronics and suitable for test equipment multiplexers, audio signal routing, and sensor interface conditioning requiring stable component supply across automotive, industrial, and instrumentation markets.
Supply support for 74HCT4066N,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 global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency and sustainability.
The 74HCT4066N,112 belongs to Nexperia's industry-standard 74-series logic portfolio, engineered for robust analog signal routing in harsh environments where TTL compatibility, thermal resilience, and long-term supply stability are essential.
FAQ
What is the maximum allowable supply voltage for the 74HCT4066N,112?
The 74HCT4066N,112 has an absolute maximum supply voltage (VCC) of +11.0 V per the datasheet limiting values table. However, its recommended operating range is strictly 4.5 V to 5.5 V. Operating above 5.5 V may cause excessive power dissipation, accelerated parametric drift, or violation of TTL input thresholds - always maintain VCC within 4.5–5.5 V for guaranteed 74HCT4066N,112 functionality and reliability.
Does the 74HCT4066N,112 support bidirectional analog signal switching?
Yes, the 74HCT4066N,112 supports fully bidirectional analog signal flow between each Y and Z terminal pair. There is no designated input or output - either terminal can serve as source or sink. This is confirmed by the functional diagram, schematic (Fig. 3), and specification of "analog switch" with symmetric RON characteristics across Vis = GND, VCC, or mid-rail conditions in Table 6 of the 74HCT4066N,112 datasheet.
What is the guaranteed maximum ON resistance for the 74HCT4066N,112 across temperature and voltage?
The 74HCT4066N,112 guarantees a maximum ON resistance (RON) of 128 Ω at VCC = 4.5 V, -40 °C to +125 °C, measured with Vis = VCC (Table 6, "RON(rail)" column). At VCC = 5.0 V and 25 °C, typical RON is 42 Ω. The 128 Ω worst-case value ensures predictable voltage drop and signal integrity in worst-case industrial thermal conditions for the 74HCT4066N,112.
Can the 74HCT4066N,112 be used with supply voltages below 4.5 V?
No - the 74HCT4066N,112 is not characterized or guaranteed for operation below 4.5 V. Its recommended operating conditions (Table 5) specify VCC min = 4.5 V for the HCT version. Using lower voltages risks undefined enable threshold behavior (VIH/VIL), increased RON, and potential failure to meet timing specs. For 2–6 V operation, use the 74HC4066N,112 variant instead of the 74HCT4066N,112.
Is the 74HCT4066N,112 pin-compatible with other 74xx4066 variants in SO14 package?
Yes - the 74HCT4066N,112 shares identical pinout (Fig. 4), electrical interface, and SO14 mechanical dimensions with 74HC4066N,112 and legacy 74LS4066. All variants use the same SOT108-1 footprint, pin numbering, and terminal functions (1Y–4Y, 1Z–4Z, 1E–4E, VCC, GND). This allows direct substitution in existing 74HCT4066N,112 layouts without PCB modification.
74HCT4066N,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 20Ohm (Typ)
- Channel-to-Channel Matching (ΔRon):
- 3Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 44ns, 30ns
- -3db Bandwidth:
- 200MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 3.5pF
- Current - Leakage (IS(off)) (Max):
- 1µA
- Crosstalk:
- -60dB @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-DIP
74HCT4066N,112 FAQ
1.How can I place an order for 74HCT4066N,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT4066N,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 74HCT4066N,112 reliable?
The price and inventory of 74HCT4066N,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT4066N,112 is usually 5 days.
3.What payment methods are accepted for 74HCT4066N,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT4066N,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT4066N,112?
74HCT4066N,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT4066N,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 74HCT4066N,112?
For technical support, including 74HCT4066N,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT4066N,112 requirements.
6.How does Aetrix verify that 74HCT4066N,112 is sourced from the original manufacturer or authorized distributors?
All 74HCT4066N,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 74HCT4066N,112 meets industry standards.
7.What is the process for return or replacement of 74HCT4066N,112?
All 74HCT4066N,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT4066N,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 74HCT4066N,112 part is unused and in its original packaging.
Return procedure for 74HCT4066N,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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