仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | 74HC |
| ProductStatus | Active |
| Function | Standard |
| Type | D-Type |
| OutputType | Tri-State, Non-Inverted |
| NumberofElements | 1 |
| NumberofBitsperElement | 8 |
| ClockFrequency | 40 MHz |
| MaxPropagationDelay@VMaxCL | 31ns @ 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-TSSOP |
概要
Description
The SN74HC574PWR is an octal D-type flip-flop with 3-state outputs, part of Texas Instruments' 74HC logic family. It incorporates eight edge-triggered D-type flip-flops with individual D inputs and Q outputs. The device is designed to operate over a broad voltage range, suitable for both 3V and 5V systems, and is characterized by low power consumption and high noise immunity.
The SN74HC574PWR is packaged in a TSSOP (Thin Shrink Small Outline Package) configuration, making it suitable for space-constrained applications. This device is particularly useful in buffering and latching data in bus-oriented systems or other data-processing applications.
Key features include a clock (CP) input, which captures the input data on the rising edge, and an output enable (OE) input, which controls the state of the outputs. When OE is low, the outputs display the stored data; when OE is high, outputs are in a high-impedance state. This flexibility makes it ideal for use in a variety of digital systems needing stable data storage and retrieval.
The SN74HC574PWR is packaged in a TSSOP (Thin Shrink Small Outline Package) configuration, making it suitable for space-constrained applications. This device is particularly useful in buffering and latching data in bus-oriented systems or other data-processing applications.
Key features include a clock (CP) input, which captures the input data on the rising edge, and an output enable (OE) input, which controls the state of the outputs. When OE is low, the outputs display the stored data; when OE is high, outputs are in a high-impedance state. This flexibility makes it ideal for use in a variety of digital systems needing stable data storage and retrieval.
Equivalent
The SN74HC574PWR is a high-speed CMOS octal D-type flip-flop with 3-state outputs. Equivalent products include the 74HC574 from NXP, ON Semiconductor, and STMicroelectronics, as well as the CD74HC574 from Texas Instruments. These devices offer similar functionality and electrical characteristics, making them suitable substitutes in most applications. Always verify specific requirements like package type and temperature range before selecting a replacement.
Features
The SN74HC574PWR is a high-speed CMOS octal D-type flip-flop with 3-state outputs. Key features include:
1. High-Speed Operation: Operates at a wide supply voltage range (2V to 6V) with typical propagation delays.
2. Low Power Consumption: Consumes minimal power due to the CMOS technology.
3. 3-State Outputs: Allows multiple devices to connect to the same bus, enabling output control via an output enable pin.
4. Latch-Up Performance: Exhibits excellent latch-up immunity, typically greater than 200 mA.
5. Input Clamping Diodes: Protects against static discharge and voltage spikes.
6. Wide Temperature Range: Functions efficiently over a temperature range of -40°C to 85°C, suitable for various applications.
7. Standard Pin Configuration: Compatible with industry-standard footprints for ease of design and integration.
8. Reliability: Manufactured with high reliability, ensuring consistent performance in various environments.
These features make it suitable for buffer, latch, and storage applications in digital systems.
1. High-Speed Operation: Operates at a wide supply voltage range (2V to 6V) with typical propagation delays.
2. Low Power Consumption: Consumes minimal power due to the CMOS technology.
3. 3-State Outputs: Allows multiple devices to connect to the same bus, enabling output control via an output enable pin.
4. Latch-Up Performance: Exhibits excellent latch-up immunity, typically greater than 200 mA.
5. Input Clamping Diodes: Protects against static discharge and voltage spikes.
6. Wide Temperature Range: Functions efficiently over a temperature range of -40°C to 85°C, suitable for various applications.
7. Standard Pin Configuration: Compatible with industry-standard footprints for ease of design and integration.
8. Reliability: Manufactured with high reliability, ensuring consistent performance in various environments.
These features make it suitable for buffer, latch, and storage applications in digital systems.
Pinout
The SN74HC574PWR is a 20-pin integrated circuit manufactured by Texas Instruments. It is an octal D-type flip-flop with 3-state outputs. Here’s a brief overview of its pin functions:
1. Pins 1-8 (D0-D7): Data inputs for each of the 8 flip-flops.
2. Pin 9 (GND): Ground connection.
3. Pin 10 (OE̅): Output Enable, active low. Controls the 3-state outputs.
4. Pins 11-18 (Q0-Q7): 3-state outputs corresponding to the data inputs.
5. Pin 19 (CLK): Clock input. Data is transferred to the outputs on the rising edge of the clock signal.
6. Pin 20 (VCC): Positive supply voltage.
The device is used in applications where temporary data storage is required, allowing data to be latched with a clock signal and selectively output. The 3-state capability enables multiple devices to share the same output lines.
1. Pins 1-8 (D0-D7): Data inputs for each of the 8 flip-flops.
2. Pin 9 (GND): Ground connection.
3. Pin 10 (OE̅): Output Enable, active low. Controls the 3-state outputs.
4. Pins 11-18 (Q0-Q7): 3-state outputs corresponding to the data inputs.
5. Pin 19 (CLK): Clock input. Data is transferred to the outputs on the rising edge of the clock signal.
6. Pin 20 (VCC): Positive supply voltage.
The device is used in applications where temporary data storage is required, allowing data to be latched with a clock signal and selectively output. The 3-state capability enables multiple devices to share the same output lines.
Manufacturer
The SN74HC574PWR is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is a global semiconductor company that designs and produces a broad range of analog and embedded processing chips. Founded in 1930 and headquartered in Dallas, Texas, USA, TI is one of the largest semiconductor companies in the world. Its products are used in various electronic systems across industries such as automotive, industrial, consumer electronics, and communications. The company is known for its innovative technologies and significant contributions to the electronics industry, including the invention of the integrated circuit.
Application
The SN74HC574PWR is an octal D-type flip-flop used in various digital applications. Key application areas include:
1. Data Storage and Transfer: It is used for temporary storage of data in digital circuits, enabling data transfer between microprocessors and peripheral components.
2. Signal Latching and Buffering: The device acts as a latch, capturing and holding data for stability in high-speed digital systems.
3. Digital Logic Design: It is employed in creating complex logic circuits, aiding in sequential logic operations.
4. Microcontroller Interfacing: The flip-flop is used to interface with microcontrollers, managing and synchronizing data flow.
5. Clocked Operations: Utilized in synchronous systems requiring clocked data handling.
These applications make it versatile for various electronic and embedded system designs.
1. Data Storage and Transfer: It is used for temporary storage of data in digital circuits, enabling data transfer between microprocessors and peripheral components.
2. Signal Latching and Buffering: The device acts as a latch, capturing and holding data for stability in high-speed digital systems.
3. Digital Logic Design: It is employed in creating complex logic circuits, aiding in sequential logic operations.
4. Microcontroller Interfacing: The flip-flop is used to interface with microcontrollers, managing and synchronizing data flow.
5. Clocked Operations: Utilized in synchronous systems requiring clocked data handling.
These applications make it versatile for various electronic and embedded system designs.
Package
The SN74HC574PWR is a 20-pin TSSOP (Thin Shrink Small Outline Package) type. It is a surface-mount package used for integrated circuits, characterized by its thin profile and small outline, suitable for high-density electronic applications.
