1. General description
The 74LVC1G3157 is a single-pole double-throw analog switch with a digital select input (S), two
independent inputs/outputs (Y0 and Y1) and a common input/output (Z). Control inputs can be
driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators
in mixed 3.3 V and 5 V environments.
Schmitt-trigger action at control inputs makes the circuit tolerant of slower input rise and fall times.
2. Features and benefits
• Wide supply voltage range from 1.65 V to 5.5 V
• Very low ON resistance:
• 7.5 Ω (typical) at VCC = 2.7 V
• 6.5 Ω (typical) at VCC = 3.3 V
• 6 Ω (typical) at VCC = 5 V
• 32 mA continuous switch current
• Break-before-make switching
• High noise immunity
• CMOS low power dissipation
• TTL interface compatibility at 3.3 V
• Latch-up performance meets requirements of JESD 78 Class I
• ESD protection:
• HBM EIA/JESD22-A114-A exceeds 2000V
• MM EIA/JESD22-A115-A exceeds 200V
• Overvoltage tolerant control inputs to 5.5 V
• Multiple package options
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C