Texas Instruments SN74HCS74/SN74HCS74-Q1 D-Type Flip-Flops
Texas Instruments SN74HCS74/SN74HCS74-Q1 D-Type Flip-Flops feature a wide operating range, low power consumption, and Schmitt-trigger inputs, allowing for slow or noisy input signals. A low level at the preset (PRE) input sets the output high, or the clear (CLR) input resets the output low. The asynchronous preset and clear functions are not dependent on the levels of the other inputs.
When PRE and CLR are inactive (high) on the device, data at the data (D) input meeting the setup time requirements is transferred to the outputs (Q, Q) on the positive-going edge of the clock (CLK) pulse. Clock triggering develops at a voltage level and is not directly related to the rise time of the input clock (CLK) signal. Data at the data (D) input can be changed without affecting the levels at the outputs (Q, Q) following the hold-time interval. The Texas Instruments SN74HCS74-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- Wide operating voltage range of 2V to 6V
- Schmitt-trigger inputs allow for slow or noisy input signals
- ±7.8mA output drive at 5V
- Low power consumption
- Typical ICC of 100nA
- Typical input leakage current of ±100nA
Applications
- Convert a momentary switch to a toggle switch
- Hold a signal during controller reset
- Input slow edge-rate signals
- Operate in noisy environments
- Divide a clock signal by two
Datasheets
Benefits of Schmitt-trigger Inputs Chart
Functional Diagram
Additional Resources
Inilathala: 2019-07-30
| Na-update: 2023-10-11