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SN74LS74AN
+BOMIC FF D-TYPE DOUBLE 1BIT 14PDIP
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #SN74LS74AN
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Bảng dữ liệu SN74LS74AN DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Series | 74LS |
| Part Status | Active |
| Function | Set(Preset) and Reset |
| Type | D-Type |
| Output Type | Complementary |
| Number of Elements | 2 |
| Number of Bits per Element | 1 |
| Clock Frequency | 33 MHz |
| Max Propagation Delay @ V, Max CL | 25ns @ 2.5V, 15pF |
| Trigger Type | Positive Edge |
| Current - Output High, Low | 400µA, 8mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Current - Quiescent (Iq) | 8 mA |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
| Supplier Device Package | 14-PDIP |
| Package / Case | 14-DIP (0.300", 7.62mm) |
| Base Product Number | 74LS74 |
Tổng quan
Description
The SN74LS74AN is a dual D-type positive edge-triggered flip-flop IC from Texas Instruments, part of the 74LS series. It is designed for use in digital circuits to store binary data. Each flip-flop within the IC has independent data (D), clock (CLK), preset (PRE), and clear (CLR) inputs. The PRE and CLR are asynchronous active-low inputs, allowing the flip-flop to be set or reset regardless of the clock input. The device features complementary outputs (Q and Q̅).
With a supply voltage range of 4.75V to 5.25V, this IC operates reliably in TTL-compatible systems. It is characterized by low power consumption and high switching speed. The positive edge-triggered nature means that the flip-flop changes state on the rising edge of the clock signal, capturing the input data at precisely this transition.
The SN74LS74AN is commonly used in applications such as data storage, shift registers, and frequency division, making it a versatile component in digital design. The device comes in a standard dual in-line package (DIP) for easy integration into various electronic projects.
With a supply voltage range of 4.75V to 5.25V, this IC operates reliably in TTL-compatible systems. It is characterized by low power consumption and high switching speed. The positive edge-triggered nature means that the flip-flop changes state on the rising edge of the clock signal, capturing the input data at precisely this transition.
The SN74LS74AN is commonly used in applications such as data storage, shift registers, and frequency division, making it a versatile component in digital design. The device comes in a standard dual in-line package (DIP) for easy integration into various electronic projects.
Equivalent
The SN74LS74AN is a dual D-type positive-edge-triggered flip-flop with preset, clear, and complementary outputs. Equivalent products include:
1. NXP's 74LS74N
2. ON Semiconductor's MC74LS74AN
3. Fairchild/ON Semiconductor's 74F74
4. STMicroelectronics' M74HC74
5. Toshiba's TC74LS74AP
These chips have similar functionality and pin configurations, generally used in digital circuits for data storage and transfer applications. Always check datasheets for specific electrical characteristics and compatibility.
1. NXP's 74LS74N
2. ON Semiconductor's MC74LS74AN
3. Fairchild/ON Semiconductor's 74F74
4. STMicroelectronics' M74HC74
5. Toshiba's TC74LS74AP
These chips have similar functionality and pin configurations, generally used in digital circuits for data storage and transfer applications. Always check datasheets for specific electrical characteristics and compatibility.
Features
The SN74LS74AN is a dual D-type positive-edge-triggered flip-flop with preset, clear, and complementary outputs. Its key features include:
1. Logic Type: TTL (Transistor-Transistor Logic) with bipolar technology.
2. Operation: Consists of two independent flip-flops, each with data (D), clock (CLK), preset (PRE), and clear (CLR) inputs.
3. Output: Offers both Q and Q' (complementary) outputs.
4. Edge-Triggered: Operates on the positive edge of the clock pulse.
5. Preset and Clear: Asynchronous active-low inputs for setting or resetting the flip-flops.
6. Voltage Supply: Operates typically at 5V.
7. High-Speed: Provides fast switching capabilities suitable for high-speed applications.
8. Power Dissipation: Low power consumption characteristic of the LS series.
9. Package Type: Available in a 14-pin dual in-line package (DIP).
10. Fan-Out: Can drive up to 10 standard TTL loads.
These features make the SN74LS74AN suitable for a wide range of applications in digital circuits, including data storage, data transfer, and synchronization tasks.
1. Logic Type: TTL (Transistor-Transistor Logic) with bipolar technology.
2. Operation: Consists of two independent flip-flops, each with data (D), clock (CLK), preset (PRE), and clear (CLR) inputs.
3. Output: Offers both Q and Q' (complementary) outputs.
4. Edge-Triggered: Operates on the positive edge of the clock pulse.
5. Preset and Clear: Asynchronous active-low inputs for setting or resetting the flip-flops.
6. Voltage Supply: Operates typically at 5V.
7. High-Speed: Provides fast switching capabilities suitable for high-speed applications.
8. Power Dissipation: Low power consumption characteristic of the LS series.
9. Package Type: Available in a 14-pin dual in-line package (DIP).
10. Fan-Out: Can drive up to 10 standard TTL loads.
These features make the SN74LS74AN suitable for a wide range of applications in digital circuits, including data storage, data transfer, and synchronization tasks.
Pinout
The SN74LS74AN is a dual D-type positive edge-triggered flip-flop with preset and clear functions. It has 14 pins with the following functions:
1. Vcc (Pin 14): Power supply.
2. GND (Pin 7): Ground.
3. Preset (PRE, Pins 4 and 10): Asynchronously sets the output high.
4. Clear (CLR, Pins 1 and 13): Asynchronously resets the output low.
5. Clock (CLK, Pins 3 and 11): Triggered on the rising edge to transfer data from D to Q.
6. Data Input (D, Pins 2 and 12): Data input for the flip-flop.
7. Q Outputs (Q, Pins 5 and 9): True outputs of the flip-flops.
8. Q̅ Outputs (Q̅, Pins 6 and 8): Complementary outputs of the flip-flops.
Each flip-flop is independently controlled, allowing versatile uses in digital circuits for data storage, transfer, and synchronization tasks.
1. Vcc (Pin 14): Power supply.
2. GND (Pin 7): Ground.
3. Preset (PRE, Pins 4 and 10): Asynchronously sets the output high.
4. Clear (CLR, Pins 1 and 13): Asynchronously resets the output low.
5. Clock (CLK, Pins 3 and 11): Triggered on the rising edge to transfer data from D to Q.
6. Data Input (D, Pins 2 and 12): Data input for the flip-flop.
7. Q Outputs (Q, Pins 5 and 9): True outputs of the flip-flops.
8. Q̅ Outputs (Q̅, Pins 6 and 8): Complementary outputs of the flip-flops.
Each flip-flop is independently controlled, allowing versatile uses in digital circuits for data storage, transfer, and synchronization tasks.
Manufacturer
The SN74LS74AN is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is headquartered in Dallas, Texas, and is one of the largest semiconductor companies in the world. Texas Instruments is known for its broad portfolio of products, which includes analog electronics, embedded processors, calculators, and digital light processing technology. The company serves a wide range of industries, including automotive, industrial, consumer electronics, and communications equipment, among others. TI is recognized for its innovation in electronic design and for providing high-quality products that are integral to a variety of electronic systems.
Application
The SN74LS74AN is a dual D-type positive edge-triggered flip-flop with preset and clear capabilities, commonly used in digital circuits. Its application areas include data storage, data transfer, and data synchronization. It is often employed in counters, shift registers, frequency dividers, and memory devices. This component is essential in digital signal processing, communication systems, and control systems to ensure accurate timing and sequencing. Additionally, it is used in microprocessor and microcontroller interfacing to stabilize and manage data flow, making it a versatile component in designing complex digital systems.
Package
The SN74LS74AN is a dual D-type positive-edge-triggered flip-flop IC with clear and preset capabilities. It typically comes in a 14-pin Dual In-line Package (DIP).
