SN74ACT244MNSREP集成电路（IC）的缓冲器驱动器接收器收发器规格书PDF中文资料

SN74ACT244MNSREP属于集成电路（IC）的缓冲器驱动器接收器收发器。由德州仪器制造生产的SN74ACT244MNSREP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。

FEATURES

· Controlled Baseline

– One Assembly/Test Site, One Fabrication

Site

· Extended Temperature Performance of up to

–55°C to 125°C

· Enhanced Diminishing Manufacturing

Sources (DMS) Support

· Enhanced Product-Change Notification

· Qualification Pedigree (1)

· 4.5-V to 5.5-V VCC Operation

· Inputs Accept Voltages to 5.5 V

· Max tpd of 9.5 ns at 5 V

· Inputs Are TTL Compatible

DESCRIPTION/ORDERING INFORMATION

The SN74ACT244-EP octal buffer/driver is designed specifically to improve the performance and density of

3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low,

the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the

high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.