Toshiba Dual Monostable Multivibrator 27 Elements 8 mA High/Low Level Output 16-Pin TSSOP 74VHC221AFT

Toshiba 74VHC221AFT is a high speed CMOS dual monostable multivibrator fabricated using silicon gate C2MOS technology. Featuring 27 elements per chip and housed in a compact 16-Pin TSSOP package with a height of 1 mm and length of 5 mm, it operates with a supply voltage range of 2 V to 5.5 V, making it suitable for a variety of electronic circuit applications.

The device offers two trigger inputs: A input with negative edge triggering and B input with positive edge triggering. Both inputs are Schmitt trigger types designed for signals with slow rise and fall times. Additionally, a CLR input with positive edge triggering can be used to start the monostable state, which lasts for a time period determined externally by resistor and capacitor components. A low level at the CLR input cancels this state.

The 74VHC221AFT provides maximum high-level output current of -8 mA and low-level output current of 8 mA, with a maximum propagation delay time of 8.1 ns at 5 V supply voltage. Its low power dissipation includes a standby state current of 4.0 μA (max) and active state current of 750 μA (max) at 25 °C, supporting energy-efficient designs.

Designed to withstand harsh environments, it supports a wide operating temperature range from -40 °C to 125 °C and meets the automotive AEC-Q100 standard, making it reliable for automotive and industrial electronics.

The input protection circuit allows input voltage signals between 0 to 5.5 V regardless of supply voltage, thus enabling interfacing between 5 V and 3 V systems or dual supply systems such as battery backup setups without risk of damage.

This monostable multivibrator is widely used in timing applications, pulse generation, delay circuits, and waveform shaping in electronic, industrial, and automotive systems. Operates from 2 V to 5.5 V supply voltage for wide system compatibility.

High noise immunity with 28% VCC min threshold enhances signal integrity. Compact 16-Pin TSSOP package suitable for space-constrained designs. Utilizes silicon gate C2MOS technology for fast and stable operation. Balanced propagation delays ensure timing accuracy.

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