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SM74HC595D
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FabricantShenzhen Sun Moon micro
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Pièce fabricant #SM74HC595D
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Fiche technique SM74HC595D DataSheet
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En stock11742
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Spécifications
| Attribut | Valeur |
| Manufacturer | Shenzhen Sunmoon Micro |
| Package | SOP-16 |
Présentation
Description
The SM74HC595D consists of an 8-bit serial-in, parallel-out shift register feeding an 8-bit D-type storage register. The data within the shift register can be transferred to the storage register, which then controls the output pins. This allows data to be shifted in serially and then output in parallel, enabling efficient control of a wide range of output devices such as LEDs, displays, or relays.
The chip includes a latch pin (STCP) for data transfer from the shift register to the storage register, an output enable pin (OE) for controlling the outputs, and a clear pin (MR) for resetting the shift register. These features make the SM74HC595D a versatile component in digital electronics applications.
Equivalent
Features
1. High-Speed Operation: Operates efficiently in high-frequency environments.
2. Low Power Consumption: Ideal for battery-powered applications.
3. Wide Operating Voltage Range: Typically operates from 2V to 6V.
4. Tri-State Outputs: Allows for direct interface with microprocessors and controlled data flow.
5. Synchronous Serial Data Input: Permits data entry via a serial interface.
6. Latch Storage: With latch-enable pin for controlling the output.
7. Cascadable: Multiple devices can be connected in series for expanded capabilities.
These features make the SM74HC595D suitable for driving LEDs, creating digital displays, and other applications requiring multiple outputs from minimal input pins.
Pinout
The SM74HC595D has a 16-pin package. Here is a brief overview of its pins and functions:
1. Q1-Q7 (Pins 15, 1-7): Parallel data outputs.
2. DS (Pin 14): Serial data input.
3. OE (Pin 13): Output enable (active low).
4. STCP (Pin 12): Storage register clock input (latch pin).
5. SHCP (Pin 11): Shift register clock input.
6. MR (Pin 10): Master reset (active low).
7. Q7' (Pin 9): Serial data output for cascading.
8. GND (Pin 8): Ground.
9. VCC (Pin 16): Positive supply voltage.
The device allows serial data to be shifted in on the rising edge of the SHCP, and transferred to the output pins on the rising edge of the STCP. The OE pin enables or disables the outputs without affecting the internal registers.