Overview
The 74HCT4538 is a dual retriggerable-resettable monostable multivibrator produced by Nexperia. This integrated circuit is designed to provide two independent monostable multivibrators, each with two trigger/retrigger inputs (nA and nB) and a reset input (nR). The device operates within the TTL logic switching levels and is suitable for a wide range of applications requiring precise timing and pulse generation.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT4538D | 4.5 - 5.5 | TTL | ± 4 | 30 | low | -40~125 | 74 | 1.7 | 32.8 | SO16 |
| 74HCT4538PW | 4.5 - 5.5 | TTL | ± 4 | 30 | low | -40~125 | 109 | 1 | 37 | TSSOP16 |
Key Features
- Dual retriggerable-resettable monostable multivibrator
- Two trigger/retrigger inputs (nA and nB) and one reset input (nR) per multivibrator
- TTL logic switching levels
- Output drive capability of ± 4 mA
- Propagation delay of 30 ns
- Operating temperature range of -40°C to 125°C
- Available in SO16 and TSSOP16 packages
Applications
The 74HCT4538 is versatile and can be used in various applications requiring precise timing and pulse generation, such as:
- Pulse generators and timing circuits
- Frequency dividers and counters
- Sequential logic circuits
- Automotive and industrial control systems
- Consumer electronics and telecommunications equipment
Q & A
- What is the 74HCT4538?
The 74HCT4538 is a dual retriggerable-resettable monostable multivibrator. - Who manufactures the 74HCT4538?
The 74HCT4538 is manufactured by Nexperia. - What are the logic switching levels of the 74HCT4538?
The 74HCT4538 operates with TTL logic switching levels. - What is the output drive capability of the 74HCT4538?
The output drive capability is ± 4 mA. - What is the propagation delay of the 74HCT4538?
The propagation delay is 30 ns. - What are the available packages for the 74HCT4538?
The 74HCT4538 is available in SO16 and TSSOP16 packages. - What is the operating temperature range of the 74HCT4538?
The operating temperature range is -40°C to 125°C. - Can the 74HCT4538 be used in automotive applications?
Yes, the 74HCT4538 can be used in automotive and industrial control systems. - Is the 74HCT4538 RoHS compliant?
Yes, the 74HCT4538 is RoHS compliant. - Where can I find the datasheet for the 74HCT4538?
The datasheet can be found on the Nexperia website or through authorized distributors.
