These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.

Series 54LS and 54S are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74LS and 74S are characterized for operation from 0°C to 70°C.

• Three-State Outputs Interface Directly with System Bus
• 'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258
• Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158
• Provides Bus Interface from Multiple Sources in High-Performance Systems

Off state (worst case)

• ADS6129 - 低功耗 12 位 250MSPS ADC
• SN65LVDS389 - 八路 LVDS 发送器
• UC2854M - 高功率因素前置稳压器
• TL494 - 脉冲宽度调制 (Pwm) 控制电路
• LM3423 - 用于恒流 LED 驱动器的 N 通道控制器
• TPS70851 - 具有 SVS 和独立使能端的双路输出 LDO
• TPS73HD318 - 双路输出低压降 (LDO) 稳压器
• SN751701 - RS-232C 稳压器
• ADS1130 - 用于桥传感器的 18 位模数转换器
• ADS4249 - 14 位 250MSPS 双路低功耗 ADC