74HC7540PW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

74HC7540PW属于集成电路（IC）的缓冲器驱动器接收器收发器。由安世半导体(中国)有限公司制造生产的74HC7540PW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。

1. General description

The 74HC7540; 74HCT7540 is an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and

3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes

the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables

the use of current limiting resistors to interface inputs to voltages in excess of VCC. Schmitt trigger

inputs transform slowly changing input signals into sharply defined jitter-free output signals.

2. Features and benefits

• Wide supply voltage range from 2.0 to 6.0 V

• CMOS low power dissipation

• High noise immunity

• Unlimited input rise and fall times

• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

• Inverting outputs

• Input levels:

• For 74HC7540: CMOS level

• For 74HCT7540: TTL level

• Complies with JEDEC standards

• JESD8C (2.7 V to 3.6 V)

• JESD7A (2.0 V to 6.0 V)

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115-A exceeds 200 V

• Multiple package options

• Specified from -40 °C to +85 °C and from -40 °C to +125 °C