SN74LS273集成电路（IC）的触发器规格书PDF中文资料

SN74LS273属于集成电路（IC）的触发器。由美国德州仪器公司制造生产的SN74LS273触发器触发器是能够存储单个逻辑状态或信息“位”的基本数字存储器件。这些器件至少有两个输入；一个或多个用于传递要存储的数据，另一个用于指示存储该数据的时间点。不同的触发器类型，例如 D（延迟）、SR（置位复位）和 JK，对提供给其输入的信号有不同的响应，可用于实现不同的逻辑功能。这些器件与锁存器的不同之处在于它们是边缘敏感器件，其保持的逻辑状态仅在接收到有效时钟信号时才会改变。

• Contains Eight Flip-Flops With Single-Rail

Outputs

• Buffered Clock and Direct Clear Inputs

• Individual Data Input to Each Flip-Flop

• Applications Include:

Buffer/Storage Registers

Shift Registers

Pattern Generators

description

These monolithic, positive-edge-triggered flipflops

utilize TTL circuitry to implement D-type

flip-flop logic with a direct clear input.

Information at the D inputs meeting the setup time

requirements is transferred to the Q outputs on the

positive-going edge of the clock pulse. Clock

triggering occurs at a particular voltage level and

is not directly related to the transition time of the

positive-going pulse. When the clock input is at

either the high or low level, the D input signal has

no effect ar the output.

These flip-flops are guaranteed to respond to

clock frequencies ranging form 0 to 30 megahertz

while maximum clock frequency is typically 40

megahertz. Typical power dissipation is 39

milliwatts per flip-flop for the 4273 and 10 milliwatts

for the 4LS273.