器件名称:
MC74LCX257M
功能描述:
Low-Voltage CMOS Quad 2-Input Multiplexer With 5.0 VTolerant Inputs and Outputs (3State, NonInverting)
文件大小:
87.33KB 共8页
简 介:
MC74LCX257 LowVoltage CMOS Quad 2Input Multiplexer With 5.0 VTolerant Inputs and Outputs (3State, NonInverting) http://onsemi.com The MC74LCX257 is a high performance, quad 2input multiplexer with 3state outputs operating from a 2.3 to 3.6 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX257 inputs to be safely driven from 5.0 V devices. Four bits of data from two sources can be selected using the Select input. The four outputs present the selected data in the true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OE) input. Current drive capability is 24 mA at the outputs. Features MARKING DIAGRAMS 16 SOIC16 D SUFFIX CASE 751B 1 16 LCX257 AWLYWW 16 1 16 1 Designed for 2.3 to 3.6 V VCC Operation 5.0 V Tolerant Interface Capability with 5.0 V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0 V LVTTL Compatible LVCMOS Compatible 24 mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (10 mA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 500 mA ESD Performance: Human Body Model >2000 V Machine Model >200 V PbFree Packages are Available* TSSOP16 DT SUFFIX CASE 948F LCX 257 ALYW 1 16 SOEIAJ16……
