DESCRIPTION

The M54/74HCT245, HCT640 and HCT643 utilise silicon gate C2MOS technology to achive operating speeds eqivalent to LSTTL devices.

■ HIGH SPEED

tPD = 10 ns (TYP.) at VCC = 5V

■ LOW POWER DISSIPATION

ICC = 4 µA (MAX.) at TA = 25 °C

■ COMPATIBLE WITH TTL OUTPUTS

VIH = 2V (MIN.) VIL = 0.8V (MAX.)

■ OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

■ SYMMETRICAL OUTPUT IMPEDANCE

|IOH| = IOL = 6 mA (MIN)

■ BALANCED PROPAGATION DELAYS

tPLH = tPHL

■ PIN AND FUNCTION COMPATIBLE

WITH 54/74LS245/640/643

M74HCT245B1R属于集成电路（IC） > 缓冲器，驱动器，接收器，收发器。意法半导体（ST）集团制造生产的M74HCT245B1R缓冲器，驱动器，接收器，收发器逻辑缓冲器、驱动器、接收器和收发器允许隔离对某个电路的逻辑信号的访问，以用于另一电路。缓冲器将其输入信号（不变或反相）传递到其输出，并可能用于清除弱信号或驱动负载。在布尔逻辑仿真器中，缓冲器主要用于增加传播延迟。逻辑接收器和收发器允许在数据总线之间进行隔离通信。