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SN74HC374DWR
+StücklisteIC FF D-TYPE SNGL 8BIT 20SOIC
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HerstellerTexas Instruments
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Herstellerteil #SN74HC374DWR
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Datenblatt SN74HC374DWR DataSheet
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Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74HC |
| ProductStatus | Active |
| Function | Standard |
| Type | D-Type |
| OutputType | Tri-State, Non-Inverted |
| NumberofElements | 1 |
| NumberofBitsperElement | 8 |
| ClockFrequency | 70 MHz |
| MaxPropagationDelay@VMaxCL | 15ns @ 6V, 50pF |
| TriggerType | Positive Edge |
| Current-OutputHighLow | 7.8mA, 7.8mA |
| Voltage-Supply | 2V ~ 6V |
| Current-Quiescent(Iq) | 8 µA |
| InputCapacitance | 3 pF |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 20-SOIC |
Übersicht
Description
Key features of the SN74HC374DWR include:
1. 3-State Outputs: Allows for multiple devices to share the same output lines, enabling more complex circuitry without additional load.
2. Positive-Edge Triggered: Data is transferred to the output on the rising edge of the clock pulse.
3. Wide Operating Voltage Range: Operates effectively from 2V to 6V, providing flexibility across different systems.
4. High Noise Immunity: Designed to offer robustness in digital environments with high noise levels.
5. Low Power Consumption: Typical of CMOS technology, ensuring efficient power usage.
This IC is typically housed in a 20-pin SOIC package, making it suitable for surface-mount applications in compact designs.
Equivalent
1. 74HC374: General series by various manufacturers.
2. CD74HC374: Texas Instruments variant.
3. MC74HC374: ON Semiconductor variant.
4. TC74HC374: Toshiba variant.
These equivalents offer similar logic functions and electrical characteristics, although package types may vary. Always check the datasheet for specific voltage, temperature, and packaging details for compatibility.
Features
1. High-Speed Operation: It operates with a typical propagation delay time of about 14 ns, facilitating efficient high-speed data processing.
2. Wide Supply Voltage Range: Works within a supply voltage range of 2V to 6V, making it versatile for various applications.
3. Low Power Consumption: Designed with CMOS technology, it offers low power dissipation, ideal for battery-powered devices.
4. 3-State Outputs: The outputs can be set to high, low, or high-impedance states, useful for bus-oriented systems.
5. Latch Enable Control: Includes a latch-enable control input that allows data to be stored on the rising edge of a clock pulse.
6. Parallel Data Loading: Capable of loading data in parallel form, enhancing its utility in parallel processing systems.
7. Compact Package: Available in a 20-pin SOIC package, it is suitable for space-constrained designs.
These features make the SN74HC374DWR a robust choice for constructing memory elements and implementing addressable latches in electronic systems.
Pinout
1. Pin 1 (1OE̅̅): Output Enable for the 3-state output (active low).
2. Pins 2-9 (1D1 to 1D8): Data inputs for the 8 flip-flops.
3. Pin 10 (GND): Ground.
4. Pins 11-18 (1Q1 to 1Q8): 3-state data outputs.
5. Pin 19 (CLK): Clock input, which captures data on the rising edge.
6. Pin 20 (VCC): Supply voltage.
The SN74HC374DWR captures the input data on the rising edge of the clock signal and holds it until the next clock cycle. When the output enable (OE̅̅) is low, the outputs reflect the stored data; when high, the outputs are in a high-impedance state, effectively disconnecting them. This functionality makes the SN74HC374DWR suitable for applications requiring data storage or controlled data transfer.