74HC273集成电路（IC）的触发器规格书PDF中文资料

74HC273属于集成电路（IC）的触发器。由安世半导体(中国)有限公司制造生产的74HC273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。

1. General description

The 74HC273; 74HCT273 is an octal positive-edge triggered D-type flip-flop. The device

features clock (CP) and master reset (MR) inputs. The outputs Qn will assume the state of their

corresponding Dn inputs that meet the set-up and hold time requirements on the LOW-to-HIGH

clock (CP) transition. A LOW on MR forces the outputs LOW independently of clock and data

inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface

inputs to voltages in excess of VCC.

2. Features and benefits

• Wide supply voltage range from 2.0 V to 6.0 V

• CMOS low power dissipation

• High noise immunity

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

• Complies with JEDEC standards:

• JESD8C (2.7 V to 3.6 V)

• JESD7A (2.0 V to 6.0 V)

• Input levels:

• For 74HC273: CMOS level

• For 74HCT273: TTL level

• Common clock and master reset

• Eight positive edge-triggered D-type flip-flops

• 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