74HCT174DB数据手册集成电路（IC）的触发器规格书PDF

描述 Description

The 74HC174; 74HCT174 are hex positive edge -triggered D-type flip-flops with individual data inputs (Dn) and outputs (Qn). The common clock (CP) and master reset (MR ) inputs load and reset all flip-flops simultaneously. The D-input that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition is stored in the flip-flop and appears at the Q output. A LOW on MR causes the flip-flops and outputs to be reset LOW. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

特性 Features

• Input levels:
• For 74HC174: CMOS level
• For 74HCT174: TTL level

• Six edge-triggered D-type flip-flops
• Asynchronous master reset
• Complies with JEDEC standard no. 7A
• 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 -40 °C to +125 °C.