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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 15OHM SC70-6
- Series：74LVC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：15Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：5.7ns, 3.8ns
- -3db Bandwidth：340MHz
- Charge Injection：7pC
- Channel Capacitance (CS(off), CD(off))：5.2pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-54dB @ 10MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The SN74LVC1G3157DCKR is a single-channel SPDT analog switch from Texas Instruments, operating on a single supply voltage of 1.65V to 5.5V. It features a maximum on-resistance of 15Ω and supports bidirectional signal transmission up to VCC peak. The device offers high linearity with a -3dB bandwidth of 340MHz and typical switching speeds of 0.5ns at 3V. It includes break-before-make timing to prevent signal shorting and provides ESD protection exceeding 100mA per JESD 78 Class II. Packaged in a compact SC-70 (SOT-323) surface-mount housing measuring 2mm x 1.25mm x 0.9mm, it operates within a temperature range of -40°C to 125°C.
Feature Summary
- Supports rail-to-rail analog and digital signal routing with bidirectional conduction
- Ensures signal integrity through specified break-before-make switching action
- Provides robust latch-up protection and high ESD tolerance for reliable operation
Applications
- Portable consumer electronics requiring low-voltage signal switching
- Computer peripherals and bus multiplexing applications
- Communication networks and signal processing circuits
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS3 standards and check for any recent product change notices regarding assembly sites or material composition updates before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring a single-pole double-throw switch with low on-resistance and high-speed performance under low voltage conditions. Consider the SC-70 footprint constraints and verify that the required thermal dissipation aligns with the small package size. Confirm that the input signal levels remain within the safe operating area defined by the supply voltage limits.
Part Context
This part belongs to the SN74LVC1G3157 family of single SPDT analog switches. It shares functional characteristics with other devices in the LVC series but is distinguished by its specific packaging and electrical parameters optimized for space-constrained portable designs. The DCKR suffix indicates the SC-70 package configuration with tape-and-reel delivery.
Replacement Considerations
Direct substitutes include the Nexperia 74LVC1G3157GW,125, which offers similar SPDT functionality in a TSSOP-6 package. Verify pinout compatibility and ensure the alternative meets the required on-resistance and bandwidth specifications for the specific application.
