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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX1 22OHM SC74A
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：22Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：4.5V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：11ns, 11ns
- -3db Bandwidth：280MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：10pF
- Current - Leakage (IS(off)) (Max)：100nA
- Crosstalk：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SC-74A
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The Nexperia 74AHCT1G66GV,125 is a single-pole, single-throw analog switch housed in an SOT753 (SC-74A) package. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features TTL-compatible control inputs and includes an overvoltage-tolerant enable input (nE). Key electrical parameters include a typical ON resistance of 16 Ω at 4.5 V and 14 Ω at 5.5 V. Propagation delay is typically 0.7 ns with a maximum of 3.0 ns across the operating temperature range of -40 °C to +125 °C. The component supports bidirectional signal transmission between two independent terminals.
Feature Summary
- TTL-compatible logic levels for direct interfacing with standard digital circuits
- Overvoltage tolerant control input allowing operation in mixed-voltage environments
- Bidirectional analog switching capability between independent input/output terminals
Applications
- Signal routing in mixed-signal systems
- Voltage level translation between different logic domains
- Multiplexing applications requiring low ON resistance
Procurement Notes
Verify the specific ordering suffix '125' corresponds to the SC-74A package variant when sourcing. Confirm that the application environment remains within the specified 4.5 V to 5.5 V supply range to ensure proper TTL threshold compatibility. Check for RoHS compliance status if required by local regulations.
Selection Notes
Select this component when TTL-level control signals are available and a compact surface-mount footprint is required. The AHCT variant is preferred over AHC when interfacing directly with 5 V TTL logic without additional level shifting. Ensure the load current does not exceed the 25 mA limit defined in the absolute maximum ratings.
Part Context
This part belongs to the Nexperia 74AHC(A)HCT single-gate logic family, designed for miniaturization in small outline packages. The 74AHCT1G66 series specifically targets applications requiring CMOS performance with TTL input compatibility. The GV suffix denotes the SOT753 plastic surface-mounted package configuration.
Replacement Considerations
The 74AHC1G66GV,125 serves as the high-speed CMOS equivalent within the same package. For pin-compatible alternatives, verify the 74HCT1G66 series, noting differences in supply voltage ranges and ON resistance characteristics.
