74LS157

Electrical Characteristics

• Supply Voltage (Vcc): 4.75V – 5.25V
• Nominal Voltage: 5V
• Input HIGH (VIH): ≥ 2V
• Input LOW (VIL): ≤ 0.8V
• Output HIGH (VOH): ≥ 2.7V @ IOH = –0.4 mA
• Output LOW (VOL): ≤ 0.5V @ IOL = 8 mA
• Propagation Delay (tpd): Typical 15 ns
• Power Dissipation: ~20 mW

Absolute Maximum Ratings

• Vcc: 7V
• Input Voltage: –0.5V to 7V
• Operating Temperature: 0°C to +70°C
• Storage Temperature: –65°C to +150°C

Functional Characteristics

• Number of Multiplexers: 4
• Inputs per MUX: 2 (A and B)
• Output per MUX: 1 (Y)
• Select Input: Common select line (S) for all four MUXes
• Enable Input: Active LOW (G) controls whether outputs are active
• Logic Function: Routes selected input (A or B) to output Y when enable is active