器件名称:
MC74LVX245
功能描述:
LOW-VOLTAGE CMOS
文件大小:
163.23KB 共7页
简 介:
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Octal Bus Transceiver With 5V-Tolerant Inputs The MC74LVX245 is an advanced high speed CMOS octal bus transceiver. It is intended for two–way asynchronous communication between data buses. The direction of data transmission is determined by the level of the T/R input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated. All inputs are equipped with protection circuits against static discharge. MC74LVX245 LOW–VOLTAGE CMOS LVX DW SUFFIX 20–LEAD SOIC PACKAGE CASE 751D–04 DT SUFFIX 20–LEAD TSSOP PACKAGE CASE 948E–02 High Speed: tPD = 4.7ns (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 = 0.8V (Max) Pin and Function Compatible with Other Standard Logic Families Latchup Performance Exceeds 300mA ESD Performance: HBM > 2000V; Machine Model > 200V APPLICATION NOTES 1. Do not force a signal on an I/O pin when it is an active output, damage may occur. 2. All floating (high impedence) input or I/O pins must be fixed by means of pull up or pull down resistors or bus terminator ICs. 3. A parasitic diode is formed between the bus and VCC terminals. Therefore, the LVX245 cannot be used to interface 5V to 3V systems directly. VCC 20 OE 19 B0 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 M SUFFIX 20–LEAD SOIC EIAJ PACKAGE CASE 967–01 PIN NAMES Pins 1 T/R 2 A0 3 A1 4 A2 ……
