NXP Semiconductors 74HC4066N,652
- Part No.:
- 74HC4066N,652
- Manufacturer:
- NXP Semiconductors
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
74HC4066N,652.pdf
- Description:
- IC SWITCH SPST-NOX4 95OHM 14DIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
74HC4066N,652 from NXP Semiconductors is a quad SPST analog switch IC with CMOS-level enable inputs, 14-pin DIP package, −40 °C to +125 °C operating range, and typical ON resistance of 35 Ω at VCC = 9.0 V. It routes bidirectional analog or digital signals in multiplexing, signal gating, and sensor interface applications where low distortion and rail-to-rail switching are required.
For engineers reviewing the 74HC4066N,652 datasheet, 74HC4066N,652 pinout, 74HC4066N,652 application, or 74HC4066N,652 equivalent, key selection criteria include ON-resistance flatness across voltage range, isolation >50 dB at 1 MHz, THD <0.02% at 1 kHz/8 VPP, and compatibility with 2–10 V supply rails in mixed-signal systems.
Technical Context
The 74HC4066N,652 implements four independent bilateral analog switches, each controlled by a dedicated active-HIGH enable (nE) input. Its CMOS process enables rail-to-rail analog signal handling (GND to VCC) with no polarity restriction on Y/Z terminals.
Each switch features integrated clamp diodes for overvoltage protection and supports current limiting resistors when interfacing to voltages exceeding VCC. The device complies with JEDEC standard no. 7A and meets HBM ESD >2000 V and MM ESD >200 V specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch type | Quad SPST analog switch - enables independent routing of four bidirectional signal paths |
| ON resistance (typ) | 35 Ω at VCC = 9.0 V - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Supply range | 2.0 V to 10.0 V - supports operation from low-voltage logic up to industrial 9 V rails |
| Isolation (OFF-state) | −50 dB at 1 MHz - suppresses crosstalk between inactive channels in high-frequency multiplexers |
| THD | 0.02% at 1 kHz, 8 VPP, VCC = 9.0 V - preserves signal fidelity in audio and sensor front-ends |
| Turn-on time (typ) | 8 ns at VCC = 9.0 V - enables fast channel switching in data acquisition and test equipment |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood automotive, industrial control, and extended-environment designs |
Pinout & Package
74HC4066N,652 uses the plastic dual in-line package (DIP14), SOT27-1 variant, with 300-mil lead spacing and through-hole mounting. Body dimensions: 19.5 mm × 6.48 mm × 3.60 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y, 2Y, 3Y, 4Y | Signal terminal A | Bidirectional analog/digital I/O; interchangeable with Z pins for flexible routing |
| 1Z, 2Z, 3Z, 4Z | Signal terminal B | Paired with corresponding Y pin; forms a single-pole, single-throw switch path |
| 1E, 2E, 3E, 4E | Enable input | Active-HIGH control per channel; LOW disables switch and isolates Y–Z path |
| VCC (Pin 14) | Positive supply | Power rail for internal logic and switch bias; must be decoupled locally |
| GND (Pin 7) | Ground reference | Common return for all analog and digital functions; critical for THD and isolation performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports signal voltages from GND to VCC without clipping or distortion in either direction |
| Clamp diode protection | Enables safe interfacing to external voltages >VCC using series current-limiting resistors |
| Low ON-resistance mismatch | ΔRON ≤ 3 Ω at VCC = 9.0 V - ensures matched gain/attenuation across channels in instrumentation |
| High OFF-state isolation | −50 dB at 1 MHz - prevents signal bleed-through in multi-channel sampling systems |
| CMOS input compatibility | VIH/VIL thresholds track VCC - simplifies direct connection to HC/HCT logic families without level shifters |
Applications
| Audio Signal Routing | Sensor Multiplexing |
|---|---|
Use Scenario: Selecting between multiple microphone or line-level inputs in a studio mixer or portable recorder. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling low-distortion, low-crosstalk channel selection under microcontroller control. Use Value: THD <0.02% and isolation >50 dB preserve audio clarity and prevent inter-channel leakage during real-time mixing. | Use Scenario: Scanning thermistor, RTD, or potentiometer outputs into a single ADC channel in environmental monitoring hardware. IC Role / Device Role / Timing Role: Precision analog multiplexer providing matched ON resistance and minimal offset injection. Use Value: ΔRON ≤ 3 Ω and <1 μA OFF-state leakage ensure consistent gain scaling and measurement accuracy across all sensors. |
| Test Equipment Signal Gating | Digital Logic Level Translation |
Use Scenario: Enabling/disabling signal paths in automated test fixtures for functional verification of PCBAs. IC Role / Device Role / Timing Role: Fast-switching gate (ton = 8 ns) synchronized with pattern generator strobes to isolate DUT sections. Use Value: Sub-10 ns switching and 180 MHz −3 dB bandwidth support high-speed digital stimulus/response validation. | Use Scenario: Isolating legacy 5 V logic domains from newer 3.3 V or 2.5 V subsystems while preserving signal integrity. IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional buffer allowing safe communication across supply boundaries. Use Value: Clamp diodes and rail-to-rail operation permit robust level translation without external components or timing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT4066N,652 | TTL-compatible enable inputs (VIH = 2.0 V min); identical ON resistance and package | Better suited for direct interface with legacy 5 V TTL logic without pull-ups | Select when driving nE from standard 5 V logic families; otherwise 74HC4066N,652 offers wider VCC flexibility |
| CD4066BE | Higher ON resistance (125 Ω typ at 5 V); wider VCC range (3–18 V); slower switching (ton ≈ 60 ns) | Preferred in high-voltage industrial controls where 15 V operation is needed | Choose CD4066BE only if >10 V supply or extreme temperature margin (>125 °C) is mandatory |
Compared with 74HCT4066N,652 and CD4066BE, the 74HC4066N,652 delivers optimal balance of low ON resistance (35 Ω), fast switching (8 ns), and broad supply range (2–10 V), making it ideal for modern mixed-signal systems requiring precision, speed, and compatibility with both HC and HCT logic families.
Availability
74HC4066N,652 is available at Aetrix Electronics and suitable for audio routing, sensor multiplexing, test equipment gating, and digital level translation requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for 74HC4066N,652 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The 74HC4066N,652 belongs to NXP's legacy HC logic family, designed for reliable analog signal switching in mixed-signal systems where low distortion, high isolation, and wide supply voltage tolerance are essential.
FAQ
What is the maximum supply voltage rating for the 74HC4066N,652?
The 74HC4066N,652 has an absolute maximum supply voltage (VCC) of +11.0 V, but its recommended operating range is 2.0 V to 10.0 V. Operating at 10.0 V yields lowest ON resistance (32 Ω typ) and best THD performance. Exceeding 11.0 V risks permanent damage per the Absolute Maximum Ratings table in the NXP datasheet.
Can the 74HC4066N,652 switch analog signals larger than VCC?
Yes - the 74HC4066N,652 includes input clamp diodes on all Y/Z terminals. When interfacing to voltages exceeding VCC, use external current-limiting resistors to restrict clamp current to ≤±20 mA (per IEC 60134). This allows safe bidirectional signal handling up to VCC + 0.5 V or down to GND − 0.5 V without latch-up.
How does temperature affect the ON resistance of the 74HC4066N,652?
ON resistance increases with temperature: at VCC = 9.0 V, RON(rail) rises from 20 Ω (typ) at −40 °C to 85 Ω (max) at +125 °C. This variation is specified in Table 6 of the datasheet and must be accounted for in precision gain-setting or calibration-critical paths.
What is the isolation performance of the 74HC4066N,652 between OFF-state channels?
The 74HC4066N,652 provides −50 dB isolation at 1 MHz between disabled channels (e.g., 1Y–1Z OFF while 2Y–2Z active), measured with RL = 600 Ω and CL = 50 pF. Isolation degrades above 10 MHz; for >20 MHz applications, layout shielding and guard traces are recommended to maintain signal integrity.
Does the 74HC4066N,652 require external pull-down resistors on enable inputs?
No - the 74HC4066N,652 enable inputs (1E–4E) have no internal pull-downs, but their CMOS inputs draw <1 μA leakage current. In systems where enable states must be deterministic at power-up, external 10–100 kΩ pull-down resistors are recommended to ensure OFF-state default until firmware asserts HIGH.
74HC4066N,652 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):
- 95Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 10V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 20ns
- -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
74HC4066N,652 FAQ
1.How can I place an order for 74HC4066N,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC4066N,652 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 74HC4066N,652 reliable?
The price and inventory of 74HC4066N,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC4066N,652 is usually 5 days.
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5.How can I obtain technical support or documentation for 74HC4066N,652?
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6.How does Aetrix verify that 74HC4066N,652 is sourced from the original manufacturer or authorized distributors?
All 74HC4066N,652 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 74HC4066N,652 meets industry standards.
7.What is the process for return or replacement of 74HC4066N,652?
All 74HC4066N,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC4066N,652, 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 74HC4066N,652 part is unused and in its original packaging.
Return procedure for 74HC4066N,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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