Overview
The 74HC221DB,112 is a monostable multivibrator dual-element integrated circuit produced by NXP USA Inc. (now known as Nexperia). This component is part of the 74HC series and is designed for use in a variety of applications requiring timing and pulse generation. It operates within a temperature range of -40°C to 125°C, making it suitable for diverse environmental conditions. Although the component is currently listed as obsolete, it remains relevant for legacy systems and specific design requirements.
Key Specifications
| Specification | Value |
|---|---|
| Package / Case | 16-SSOP (0.209, 5.30mm Width) |
| Operating Temperature | -40°C ~ 125°C |
| Supply Voltage | 2V ~ 6V |
| Propagation Delay | 19ns |
| Logic Family | HC/UH |
| Logic Function | Monostable Multivibrator |
| Process Technology | CMOS |
| Number of Elements per Chip | 2 |
| Maximum High Level Output Current | 5.2mA |
| Maximum Low Level Output Current | 5.2mA |
| Schmitt Trigger Input | Yes |
| Output Polarity | COMPLEMENTARY |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
Key Features
- Non-Retriggerable and Triggerable from Clear Input: The 74HC221DB,112 can be triggered from the clear input, providing flexibility in circuit design.
- Dual Independent Circuits: Each chip contains two independent monostable multivibrators, allowing for multiple timing functions within a single package.
- CMOS Technology: Utilizes CMOS technology for low power consumption and high noise immunity.
- Schmitt Trigger Inputs: Features Schmitt trigger inputs for improved noise tolerance.
- Complementary Outputs: Provides complementary outputs, which can be useful in various logic and timing applications.
Applications
The 74HC221DB,112 is versatile and can be used in a variety of applications, including:
- Frequency Discriminators: Useful in circuits where frequency discrimination is required.
- Blu-ray Players and Home Theaters: Can be used in audio and video equipment for timing and pulse generation.
- Mobile Internet Devices: Suitable for use in mobile devices requiring precise timing functions.
- General Timing and Pulse Generation: Can be used in any application requiring monostable multivibrator functions.
Q & A
- What is the operating temperature range of the 74HC221DB,112?
The operating temperature range is -40°C to 125°C. - What is the package type of the 74HC221DB,112?
The package type is 16-SSOP (0.209, 5.30mm Width). - Is the 74HC221DB,112 RoHS compliant?
Yes, it is ROHS3 compliant. - What is the propagation delay of the 74HC221DB,112?
The propagation delay is 19ns. - Does the 74HC221DB,112 have Schmitt trigger inputs?
Yes, it features Schmitt trigger inputs. - How many independent monostable multivibrators are on the chip?
There are two independent monostable multivibrators on the chip. - What is the supply voltage range for the 74HC221DB,112?
The supply voltage range is 2V to 6V. - Is the 74HC221DB,112 non-retriggerable?
Yes, it is non-retriggerable and can be triggered from the clear input. - What is the maximum high and low level output current?
The maximum high and low level output current is 5.2mA each. - Is the 74HC221DB,112 currently in production?
No, the component is listed as obsolete.
