圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | Shenzhen Sunmoon Micro |
| Package | SOP-16 |
概述
Description
The SM74HC595D is a high-speed CMOS 8-bit shift register with a storage register and tri-state output capabilities. It is often used in microcontroller applications to extend the number of output pins, allowing control of multiple outputs using fewer microcontroller pins. The device operates on a wide voltage range (2V to 6V) and features low power consumption, making it suitable for battery-operated devices.
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.
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
The SM74HC595D is a shift register IC, and its equivalent products are generally other 8-bit serial-in, parallel-out shift registers. Some common equivalents include the 74HC595 SN74HC595N, CD74HC595, and M74HC595. These are available from various manufacturers like Texas Instruments, NXP, and STMicroelectronics. They share similar functionality in terms of voltage range, pin configuration, and operation, making them suitable replacements in most applications. Always check the datasheet for specific electrical characteristics and pin compatibility.
Features
The SM74HC595D is an 8-bit shift register with output latches, designed for high-speed, low-power applications. It features a serial input (DS) and a parallel output (Q0-Q7), allowing serial-to-parallel data conversion. The device integrates an 8-bit storage register and a shift register, with both clocked independently. Its primary features include:
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.
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 is a variant of the 74HC595, an 8-bit serial-in, parallel-out shift register with an 8-bit storage register and 3-state outputs. It is commonly used in microcontroller applications to expand the number of I/O pins.
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.
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.
Manufacturer
The SM74HC595D is manufactured by Nexperia. Nexperia is a global semiconductor company known for its expertise in producing discrete and power semiconductors and analog & logic integrated circuits. As a spin-off from NXP Semiconductors in 2017, Nexperia focuses on efficiency and performance in its product offerings, serving a wide range of markets including automotive, computing, consumer electronics, and industrial applications. The company is headquartered in Nijmegen, Netherlands, and emphasizes reliable supply, consistent quality, and a commitment to sustainability in its manufacturing processes.
Application
The SM74HC595D is an 8-bit serial-in, parallel-out shift register with a storage register and 3-state outputs. It is commonly used in applications requiring the extension of output pins, such as microcontroller interfacing, LED displays, and digital circuit design. By serially connecting multiple SM74HC595D chips, users can control a large number of outputs with limited input pins. This makes it ideal for driving LED matrices, 7-segment displays, and for use in signal or data routing applications. Its high-speed operation and low power consumption also make it suitable for use in digital communication systems and instrumentation that require efficient data management and visualization.
Package
The SM74HC595D is typically available in a surface-mount package, specifically the Small Outline Integrated Circuit (SOIC) package type. This is a compact package suitable for various electronic applications, providing an efficient way to mount the IC on printed circuit boards.
