器件名称:
MC74LVX157DT
功能描述:
Quad 2-Channel Multiplexer With 5V-Tolerant Inputs
文件大小:
99.49KB 共8页
简 介:
Quad 2-Channel Multiplexer With 5V–Tolerant Inputs The MC74LVX157 is an advanced high speed CMOS quad 2–channel multiplexer. The inputs tolerate voltages up to 7V, allowing the interface of 5V systems to 3V systems. It consists of four 2–input digital multiplexers with common select (S) and enable (E) inputs. When E is held High, selection of data is inhibited and all the outputs go Low. The select decoding determines whether the I0n or I1n inputs get routed to the corresponding Zn outputs. High Speed: tPD = 5.1ns (Typ) at VCC = 3.3V Low Power Dissipation: ICC = 4A (Max) at TA = 25°C Power Down Protection Provided on Inputs Balanced Propagation Delays Low Noise: VOLP = 0.5V (Max) Pin and Function Compatible with Other Standard Logic Families Latchup Performance Exceeds 300mA ESD Performance: HBM > 2000V; Machine Model > 200V VCC 16 E 15 I0c 14 I1c 13 Zc 12 I0d 11 I1d 10 Zd 9 MC74LVX157 LOW–VOLTAGE CMOS LVX D SUFFIX 16–LEAD SOIC PACKAGE CASE 751B–05 DT SUFFIX 16–LEAD TSSOP PACKAGE CASE 948F–01 1 S 2 I0a 3 I1a 4 Za 5 I0b 6 I1b 7 Zb 8 GND M SUFFIX 16–LEAD SOIC EIAJ PACKAGE CASE 966–01 Figure 1. 16–Lead Pinout (Top View) 1 S E I0a I1a I0b I1b I0c I1c I0d I1d PIN NAMES 15 2 3 5 6 14 13 11 10 Pins 4 Function Source 0 Data Inputs Source 1 Data Inputs Enable Input Select Input Outputs Za I0n I1n E S Zn 7 Zb TRUTH TABLE INPUTS OUTPUT I1n X L H X X Zn L L H L H 12 E Zc H L L L L S X H H L L I0n X X X L H 9 Zd Figure 2. Logic Diagram Semiconductor C……
