SN74S38N

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SN74S38N

IC GATE NAND OPEN 4CH 2-IN 14DIP

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Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tube
Series 74S
ProductStatus Active
LogicType NAND Gate
NumberofCircuits 4
NumberofInputs 2
Features Open Collector
Voltage-Supply 4.75V ~ 5.25V
Current-OutputHighLow -, 60mA
LogicLevel-Low 0.8V
LogicLevel-High 2V
MaxPropagationDelay@VMaxCL 9ns @ 5V, 150pF
OperatingTemperature 0°C ~ 70°C
MountingType Through Hole
SupplierDevicePackage 14-PDIP

Tổng quan

Description

The SN74S38N is a quad 2-input NAND Schmitt-trigger buffer, part of Texas Instruments' 74S series of digital logic devices. It features four independent NAND gates with Schmitt-trigger action, which provides improved noise immunity and faster rise and fall times compared to standard logic gates.
The device operates with a supply voltage range of 4.5V to 5.5V and is designed for use in a variety of digital circuits, such as filtering noisy signals or creating pulse-width modulation (PWM) signals. The Schmitt-trigger input allows for slow input transitions, making it suitable for interfacing with mechanical switches or other devices that may introduce signal bounce.
Each gate has a typical propagation delay of less than 10 nanoseconds, enabling high-speed operations in digital applications. The SN74S38N comes in a 14-pin dual in-line package (DIP) and is commonly used in logic-level shifting, signal conditioning, and other digital logic applications.

Features

The SN74S38N is a quad 2-input NAND Schmitt Trigger, part of Texas Instruments' 74S logic family. Its key features include:
1. Quad Configuration: Contains four independent NAND gates.
2. Schmitt Trigger Inputs: Provides hysteresis for improved noise immunity and faster transitions by eliminating slow input changes.
3. Wide Supply Voltage: Operates with a supply voltage range of 4.5V to 5.5V.
4. Low Power Consumption: Designed for efficient operation, making it suitable for battery-powered applications.
5. TTL Compatible: Compatible with TTL input levels, allowing integration with other TTL devices.
6. High Speed: Capable of operating at high frequencies, making it suitable for fast digital circuits.
7. Pin Configuration: Available in various package types, including DIP and surface mount, for flexible design options.
These features make the SN74S38N ideal for various logic applications, including signal processing and level shifting in digital circuits.

Package

The SN74S38N is a quad 2-input NAND gate IC packaged in a 14-pin DIP (Dual In-line Package). This type of packaging allows for easy integration onto breadboards and PCB layouts.

Pinout

The SN74S38N is a quad 2-input NAND gate integrated circuit. It features a total of 14 pins. The functions of the pins are as follows:
1. Pin 1 (A1): Input for the first input of the first NAND gate.
2. Pin 2 (B1): Input for the second input of the first NAND gate.
3. Pin 3 (Y1): Output of the first NAND gate.
4. Pin 4 (GND): Ground connection.
5. Pin 5 (A2): Input for the first input of the second NAND gate.
6. Pin 6 (B2): Input for the second input of the second NAND gate.
7. Pin 7 (Y2): Output of the second NAND gate.
8. Pin 8 (VCC): Power supply connection.
9. Pin 9 (A3): Input for the first input of the third NAND gate.
10. Pin 10 (B3): Input for the second input of the third NAND gate.
11. Pin 11 (Y3): Output of the third NAND gate.
12. Pin 12 (A4): Input for the first input of the fourth NAND gate.
13. Pin 13 (B4): Input for the second input of the fourth NAND gate.
14. Pin 14 (Y4): Output of the fourth NAND gate.
This IC operates within a temperature range of 0°C to 70°C.

Manufacturer

The SN74S38N is manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits. It is widely recognized for its contributions to the electronics industry, particularly in analog, digital signal processing, and embedded systems. The company serves diverse markets, including automotive, industrial, consumer electronics, and communications, providing innovative solutions that enhance performance and efficiency in electronic devices. TI is known for its commitment to research and development, ensuring it remains at the forefront of technology advancements.

Application

The SN74S38N is a quad 2-input NAND Schmitt trigger, commonly used in digital circuits for signal conditioning, noise filtering, and improving signal integrity in noisy environments. Its application areas include oscillators, pulse generators, and waveform shaping, as well as interfacing with slow input signals to provide clean, fast output transitions. It is also utilized in logic level conversion and various timing applications in microcontroller and FPGA designs.

Equivalent

The SN74S38N is a quad 2-input NAND gate. Equivalent products include the 74HC20, 74HCT20, and 74LS20. Each variant operates with different logic levels and speed characteristics, but all serve similar functions in digital logic applications. Always check specifications to ensure compatibility.

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