SN74LV123APWR

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SN74LV123APWR

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IC MULTIVIBRATOR 13NS 16TSSOP

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  • メーカー品番 #SN74LV123APWR

  • パッケージ TSSOP-16

  • 在庫状況5428

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仕様

属性
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series 74LV
ProductStatus Active
LogicType Monostable
IndependentCircuits 2
SchmittTriggerInput Yes
PropagationDelay 13 ns
Current-OutputHighLow 12mA, 12mA
Voltage-Supply 2 V ~ 5.5 V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 16-TSSOP (0.173, 4.40mm Width)

概要

Description

The SN74LV123APWR is a dual retriggerable monostable multivibrator with Schmitt-trigger inputs, designed by Texas Instruments. It operates over a wide voltage range from 2V to 5.5V, making it suitable for various low-power applications. This device generates precise pulse widths, which can be controlled using external timing components such as resistors and capacitors. Its Schmitt-trigger action ensures noise immunity, providing clean, stable output signals.
Each multivibrator within the SN74LV123APWR can be individually triggered via a negative-edge input or retriggered, allowing for flexibility in timing applications. It features an output-enable control, which can be used to enable or disable the output without affecting the timing operation. Additionally, the device includes features like pulse-width expansion and pulse supression.
The SN74LV123APWR is commonly used in applications requiring precise timing control, such as pulse generation, delay circuits, and time-delay measurements. It is available in a variety of package options, including TSSOP, for easy integration into different circuit designs.

Equivalent

The SN74LV123APWR is a dual retriggerable monostable multivibrator with Schmitt-trigger inputs. Equivalent products include the 74HC123 series from Nexperia, ON Semiconductor, and other manufacturers, as well as the CD74HC123 from Texas Instruments. These alternatives generally offer similar functionality and pin compatibility but may differ slightly in electrical characteristics and packaging options. Always consult datasheets to ensure compatibility with specific application requirements.

Features

The SN74LV123APWR is a monostable multivibrator from Texas Instruments designed for a variety of applications. Key features include:
1. Voltage Range: Operates from a wide supply voltage range of 2 V to 5.5 V.
2. Propagation Delay: Provides a short propagation delay of about 8 ns at 5 V.
3. Output Drive: Capable of driving up to 50 pF capacitive loads and features low power consumption due to its CMOS technology.
4. Retriggerable and Extendable Pulses: Allows for pulse width and frequency control as it is both retriggerable and extendable.
5. Dual Channels: Includes two independent monostable multivibrators per package.
6. Edge-Triggered: Can be triggered by either rising or falling edge inputs.
7. Schmitt-Trigger Inputs: Ensures clean transitions and noise immunity.
8. Temperature Range: Suitable for industrial applications with an operating temperature range from -40°C to 85°C.
9. Power-Off Output State: Outputs are in a high-impedance state during power-off conditions.
These features make the SN74LV123APWR a versatile choice for timing, pulse generation, and delay applications.

Pinout

The SN74LV123APWR is a dual retriggerable monostable multivibrator IC with two independent multivibrators. It is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package). Each multivibrator can be triggered by a negative transition or a positive transition, and the output pulse width is controlled by external components (resistor and capacitor).
Pin Functions:
1. 1RD - Reset for the first multivibrator.
2. 1A - Input A for the first multivibrator.
3. 1B - Input B for the first multivibrator.
4. 1Cext - External capacitor connection for the first multivibrator.
5. 1Rext/Cext - External resistor/capacitor connection for the first multivibrator.
6. GND - Ground.
7. 2Cext - External capacitor connection for the second multivibrator.
8. 2Rext/Cext - External resistor/capacitor connection for the second multivibrator.
9. 2A - Input A for the second multivibrator.
10. 2B - Input B for the second multivibrator.
11. 2Q - Output for the second multivibrator.
12. 2RD - Reset for the second multivibrator.
13. 1Q - Output for the first multivibrator.
14. VCC - Positive supply voltage.
15. NC - Not connected (no internal connection).
16. NC - Not connected (no internal connection).
This IC is commonly used for timing applications, pulse generation, and delay circuits.

Manufacturer

The SN74LV123APWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures analog and embedded processing chips. Their products are used in a variety of electronic devices and applications, such as industrial equipment, automotive systems, personal electronics, and communications infrastructure. TI is known for its innovation in electronics, focusing on developing technologies that improve power efficiency, performance, and integration. The company was founded in 1930 and is headquartered in Dallas, Texas.

Application

The SN74LV123APWR is a dual retriggerable monostable multivibrator, primarily used in timing applications. Key application areas include pulse generation, time delay circuits, and signal conditioning. It is often employed in digital circuits to create precise time delays or extend pulse durations. The device is suitable for applications in consumer electronics, industrial control systems, and communication equipment where reliable timing sequences are required. Its capability to operate over a wide voltage range and provide stable operation under varying environmental conditions makes it versatile for use in various electronic design implementations.

Package

The SN74LV123APWR is a dual retriggerable monostable multivibrator IC from Texas Instruments. It is packaged in a TSSOP-16 (Thin Shrink Small Outline Package) which allows for a compact design suitable for surface mounting on PCBs.

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