onsemi Logic - Logic - Multivibrators - CD4538BCM CD4538BCM

The CD4538BCM is a dual precision monostable multivibrator designed for applications requiring precise timing control. It features independent trigger and reset controls, allowing for retriggerable and resettable operation. The device supports both rising and falling edge triggering through two trigger inputs, while the reset inputs are active LOW, preventing triggering during reset. This multivibrator operates over a wide supply voltage range of 3.0V to 15V and offers high noise immunity with a typical threshold of 0.45 V_CC. It is compatible with low power TTL logic, capable of driving two 74L series devices or one 74LS device. The output pulse width can be accurately controlled using external resistors and capacitors, with a pulse width range from 1 µs to infinity and a typical variation of ±1.0% between parts. The CD4538BCM is available in a 16-lead Small Outline Integrated Circuit (SOIC) package, making it suitable for space-constrained applications. It also includes internal protection against static discharge on all pins, ensuring reliability in various operating conditions.