TI SN74HCT74DR

118ns @ 5.5V，50pF4.5V ~ 5.5V

Overview

The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE)\ or clear (CLR)\ inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs.

The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE)\ or clear (CLR)\ inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs.

Features

74HCT Series
Cut Tape (CT) package
74HCT series
14 pins
5V power supplies

3 pF Input Capacitance

Applications

There are a lot of Texas Instruments
SN74HCT74DR Flip Flops applications.

• Counters
• Frequency Dividers
• Shift Registers
• Storage Registers
• Bounce elimination switch
• Data storage
• Data transfer
• Latch
• Registers
• Memory