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Product Detailed Parameters
- Description：IC SW SPST-NOX4 120OHM 14SOIC
- Series：-
- Mfr：onsemi
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：120Ohm
- Channel-to-Channel Matching (ΔRon)：20Ohm
- Voltage - Supply, Single (V+)：4.5V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：150MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：10pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The MC74HCT4066ADG is a discontinued quad analog switch manufactured by onsemi in a SOIC-14 package. It utilizes silicon-gate CMOS technology to provide fast switching speeds and low ON resistance. The device features four independent bilateral switches compatible with LSTTL inputs, operating within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 15 ns at 4.5 V, an ON resistance of up to 200 Ω, and off-channel leakage current of 1.0 µA at 125°C. It supports analog input voltages from GND to VCC and operates across a temperature range of -55°C to +125°C.
Feature Summary
- Four independent bilateral analog switches controlled by standard CMOS and LSTTL logic levels
- Silicon-gate CMOS technology providing improved linearity and lower ON resistance compared to metal-gate counterparts
- Diode protection integrated on all inputs and outputs for electrostatic discharge safeguarding
- Wide power-supply voltage range allowing control of analog signals varying across the full supply span
Applications
- Multiplexer and demultiplexer circuits for signal routing
- Sample-and-hold amplifier configurations
- LSTTL/NMOS interface applications requiring level translation
- Analog signal gating and modulation systems
Procurement Notes
This specific part number is officially discontinued and not recommended for new designs. Verification of availability requires checking for obsolete stock or contacting the manufacturer directly. Designers should review the datasheet revision history for discontinuation notices and consult official channels for potential replacement options or end-of-life management strategies.
Selection Notes
Select this component only for legacy system maintenance where pinout compatibility with MC14016 or MC14066 is required. Ensure the application strictly adheres to the 4.5 V to 5.5 V supply voltage limits. Verify that the required propagation delay and ON resistance specifications fall within the guaranteed DC and AC electrical characteristics provided in the datasheet tables.
Part Context
The MC74HCT4066A belongs to the HCT logic family, designed for high-speed operation with TTL-compatible inputs. This specific variant uses the 'D' suffix for the SOIC-14 package and 'G' indicating a lead-free construction. It serves as a functional equivalent to older metal-gate CMOS switches while offering superior performance metrics such as reduced noise and improved channel linearity over the input voltage range.
Replacement Considerations
The datasheet explicitly recommends consulting the manufacturer for information regarding this discontinued device. Potential replacements may include other quad analog switches within the HC or HCT families, though pinout and electrical parameter verification is essential.
