SN74LVC1G66DCKR

• Single-Channel SPST (single-Pole Single-throw) Analog Switch
• 1.65 V to 5.5 V Single Supply Operation
• Approximately 10 Ω on-resistance; 50 mA Output Current
• 600 Ps Propagation delay; 4.2 Ns Turn-on, 5 Ns Turn-Off
• 1 µA Nominal Supply current, 10 µA Maximum
• 5-Pin SC-70 (2 Mm X 1.25 mm), -40°C to 85°C, Lead-Free Tape and Reel

The Texas Instruments SN74LVC1G66DCKR is a single-channel single-pole single-throw (SPST) analog switch in a 5-pin SC-70 package, rated for operation from 1.65 V to 5.5 V. It has approximately 10 Ω of on-resistance, 600 ps propagation delay, and turn-on and turn-off delays of 4.2 ns and 5 ns, while drawing 1 µA nominal and no more than 10 µA of supply current. The SN74LVC1G66DCKR handles up to 50 mA of output current, is rated -40°C to 85°C, and is lead free and RoHS compliant on tape and reel.

A single-gate analog switch is used to make or break one signal path under logic control, and its value is largely in the package: it drops into the small space left near a connector, a crystal, or a test point without rerouting the board. Common uses are gating a clock or reset line, isolating a sensor or audio signal, disconnecting a bus segment during programming or standby, and enabling or disabling a feedback or trim path. The wide 1.65 V to 5.5 V supply range lets the same part serve low-voltage logic and legacy 5 V rails, and the low on-resistance keeps signal attenuation small. Typical buyers are consumer, computing, and industrial board designers plus the contract manufacturers building those assemblies, often using single-gate devices for late-stage design fixes and jumper replacement.