The M74HC4538RM13TR is a high-speed CMOS Dual Retriggerable Monostable Multivibrator manufactured by STMicroelectronics. This integrated circuit is designed to offer precise timing for a wide range of applications, from pulse generation to time delay functions. It is part of the high-speed CMOS family, which is well-regarded for its robust performance and compatibility with TTL (Transistor-Transistor Logic) levels.
This multivibrator features two independent monostable multivibrators with separate reset and trigger inputs for each section. It can be triggered on either the rising or falling edge of the input pulse, providing versatility in its operation. The device also includes leading-edge triggering (A input) and trailing-edge triggering (B input), which can be used for various timing configurations.
The output pulse duration is determined by external timing components (resistor and capacitor). This allows for a wide range of adjustable timing intervals, making the M74HC4538RM13TR suitable for custom timing solutions. Moreover, the outputs can source or sink currents, enabling direct interfacing with other logic families.
Key features of the M74HC4538RM13TR include:
- Standardized symmetrical output characteristics
- High noise immunity characteristic of CMOS devices
- Low power consumption: ICC = 4 μA (max) at TA = 25°C
- Dynamic triggering on both edges of the input signal
- Output pulse width range from nanoseconds to seconds
- Retriggerable for very long output pulses
- Operational from -55°C to 125°C, making it suitable for industrial applications
- Supplied in a compact, surface-mountable package: SO-16
The device is provided in the tape and reel packaging format, denoted by the 'TR' suffix in its part number, which facilitates automated assembly by ensuring compatibility with surface mount technology (SMT) manufacturing processes. The M74HC4538RM13TR is a reliable and flexible solution for designers requiring precise timing controls in their electronic circuits.
