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74HC74D
+NomenclatureIC FF D-TYPE DUAL 1BIT 14SOIC
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FabricantToshiba Semiconductor et stockage
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Pièce fabricant #74HC74D
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Fiche technique 74HC74D DataSheet
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Package SOIC-14
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En stock3058
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74HC |
| ProductStatus | Active |
| Function | Set(Preset) and Reset |
| Type | D-Type |
| OutputType | Complementary |
| NumberofElements | 2 |
| NumberofBitsperElement | 1 |
| ClockFrequency | 67 MHz |
| MaxPropagationDelay@VMaxCL | 26ns @ 6V, 50pF |
| TriggerType | Positive Edge |
| Current-OutputHighLow | 5.2mA, 5.2mA |
| Voltage-Supply | 2V ~ 6V |
| Current-Quiescent(Iq) | 2 µA |
| InputCapacitance | 5 pF |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 14-SOIC |
Présentation
Description
The IC operates on a wide voltage range from 2V to 6V, making it suitable for both 3.3V and 5V systems. It supports high-speed operation with relatively low power consumption. The positive edge of the clock signal triggers the data transfer from the D input to the output Q, and the direct set and reset inputs allow for asynchronous control, overriding the clocked operation.
The 74HC74D is typically used in applications requiring memory storage, data synchronization, counters, and shift registers. Encased in a small-outline (SO) package, the 74HC74D provides a compact solution for integrating flip-flop functionality into various electronic projects.
Equivalent
Features
1. Dual D-Type Flip-Flops: Contains two flip-flops in a single package.
2. Logic Family: Part of the 74HC (High-speed CMOS) series, ensuring fast operation with low power consumption.
3. Operating Voltage: Typically operates in the range of 2V to 6V.
4. High-Speed Operation: Offers quick transition times, ideal for high-speed applications.
5. Preset and Clear Inputs: Each flip-flop has asynchronous preset and clear inputs, allowing for flexibility in initialization.
6. Edge-Triggered: Data is transferred to the outputs on the rising edge of the clock signal.
7. Low Power Consumption: Consumes minimal power compared to earlier TTL logic families.
8. Output Capability: Standard output drive capability, suitable for driving moderate loads.
These features make the 74HC74D suitable for a variety of applications, including data storage, frequency division, and systems requiring edge-triggered operations.
Pinout
1. Pin 1 (1RD): Reset input for the first flip-flop.
2. Pin 2 (1D): Data input for the first flip-flop.
3. Pin 3 (1CP): Clock input for the first flip-flop.
4. Pin 4 (1SD): Set input for the first flip-flop.
5. Pin 5 (1Q̅): Inverted output for the first flip-flop.
6. Pin 6 (1Q): Non-inverted output for the first flip-flop.
7. Pin 7 (GND): Ground.
8. Pin 8 (2Q): Non-inverted output for the second flip-flop.
9. Pin 9 (2Q̅): Inverted output for the second flip-flop.
10. Pin 10 (2SD): Set input for the second flip-flop.
11. Pin 11 (2CP): Clock input for the second flip-flop.
12. Pin 12 (2D): Data input for the second flip-flop.
13. Pin 13 (2RD): Reset input for the second flip-flop.
14. Pin 14 (VCC): Positive supply voltage.
Manufacturer
Application
1. Frequency Division: Used in counters and frequency dividers.
2. Data Latching: Capturing and retaining data bits in digital systems.
3. Signal Synchronization: Aligning asynchronous signals to a clock signal.
4. Edge Detection: Detecting rising or falling edges of pulse signals.
5. State Machines: Implementing state machines in control systems.
These versatile functions make the 74HC74D suitable for use in microprocessors, communication devices, and other digital systems.