Integrated Circuit - SN74LS175, Quadruple D-Type Flip-Flops, 16-pin DIP
This quad flip flop is a part used in our Relay True Bypass Switching Part 2: Momentary and Soft Touch Switches article. To read the full article and learn about a circuit for relay switching in stomp box effects, please see the following link.
These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic. All have a direct clear input, and the '175, 'LS175, and 'S175 feature complementary outputs from each flip-flop.
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 at the output.
These circuits are fully compatible for use with most TTL circuits.
- Contain Four Flip-Flops with Double-Rail Outputs
- Three Performance Ranges Offered: See Table Lower Right
- Buffered Clock and Direct Clear Inputs
- Individual Data Input to Each Flip-Flop
- Applications include:
- Buffer/Storage Registers
- Shift Registers
- Pattern Generators
|Max. Input Voltage||7V|
|Max. Operating Temperature Range||0°C-70°C|
|Max. Supply Voltage||7V|
|Recommended Max. Clock Frequency||30MHz|
|Recommended Max. High Level Output Current||-400uA|
|Recommended Max. Low Level Output Current||8mA|
|Recommended Min. Clear inactive-state Setup Time||25ns|
|Recommended Min. Data Hold Time||5ns|
|Recommended Min. Data Input Setup Time||20ns|
|Recommended Min. width of clock||20ns|
|Recommended Supply Voltage||5V|
|Packaging Dimensions||0.768 in. × 0.356 in. × 0.281 in.|
|Weight (Packaging)||0.002 lbs.|