Overview
The SN74121NSRE4 is a monostable multivibrator integrated circuit manufactured by Texas Instruments. This component is part of the 7400 series and is designed for use in various timing and pulse generation applications. It features a surface mount package in a 14-SOIC (Small Outline Integrated Circuit) configuration, making it suitable for modern electronic designs. Although the part is currently listed as obsolete, it remains relevant for legacy systems and specific applications where its unique characteristics are required.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Series | 7400 |
| Package / Case | 14-SOIC (0.209" | 5.30mm Width) |
| Number of Pins | 14 |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Logic Type | Monostable |
| Independent Circuits | 2 |
| Schmitt Trigger Input | No |
| Propagation Delay | 45 ns |
| Current - Output High, Low | 400µA | 16mA |
| Voltage - Supply | 4.75 V ~ 5.25 V |
| Technology | TTL |
| Output Polarity | COMPLEMENTARY |
| Number of Data/Clock Inputs | 3 |
Key Features
- Monostable Multivibrator: The SN74121NSRE4 functions as a monostable multivibrator, providing a stable pulse output in response to a trigger input.
- Dual Independent Circuits: It contains two independent monostable multivibrator circuits, allowing for multiple timing functions within a single package.
- TTL Technology: The component uses Transistor-Transistor Logic (TTL) technology, ensuring compatibility with other TTL-based systems.
- Surface Mount Package: The 14-SOIC package is designed for surface mount assembly, facilitating modern PCB design and manufacturing processes.
- Complementary Outputs: The device provides complementary output signals, which can be useful in various digital circuit applications.
Applications
- Frequency Discriminators: The SN74121NSRE4 can be used in frequency discriminator circuits to detect specific frequencies.
- Timing Circuits: It is suitable for timing and pulse generation in various electronic systems.
- Time-Delay Applications: The component can be used to introduce time delays in digital circuits.
- AV Receivers and Home Theaters: It can be found in audio-visual equipment such as AV receivers and home theaters for timing and control functions.
- Blu-ray Players: The SN74121NSRE4 may be used in Blu-ray players for similar timing and control purposes.
Q & A
- What is the primary function of the SN74121NSRE4?
The primary function of the SN74121NSRE4 is to act as a monostable multivibrator, generating a stable pulse output in response to a trigger input. - What type of package does the SN74121NSRE4 use?
The SN74121NSRE4 uses a 14-SOIC (Small Outline Integrated Circuit) surface mount package. - What is the operating temperature range of the SN74121NSRE4?
The operating temperature range is from 0°C to 70°C. - Does the SN74121NSRE4 have Schmitt trigger inputs?
No, the SN74121NSRE4 does not have Schmitt trigger inputs. - What is the propagation delay of the SN74121NSRE4?
The propagation delay is 45 ns. - What is the supply voltage range for the SN74121NSRE4?
The supply voltage range is from 4.75 V to 5.25 V. - How many independent circuits are in the SN74121NSRE4?
The SN74121NSRE4 contains two independent monostable multivibrator circuits. - What technology does the SN74121NSRE4 use?
The SN74121NSRE4 uses TTL (Transistor-Transistor Logic) technology. - What are some common applications of the SN74121NSRE4?
Common applications include frequency discriminators, timing circuits, time-delay applications, AV receivers, and Blu-ray players. - Is the SN74121NSRE4 RoHS compliant?
Yes, the SN74121NSRE4 is ROHS3 compliant.
