74LVC1G123GN,115

Overview

The Nexperia 74LVC1G123GN,115 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. It operates within a supply voltage range of 1.65 V to 5.5 V and supports an operating temperature from -40 °C to +125 °C. The device features propagation delays up to 7.7 ns and maximum output currents of ±32 mA. It utilizes an XSON-8 package (SOT1116) with a maximum power dissipation of 300 mW and a maximum supply current of 650 uA.

Feature Summary

• Retriggerable monostable operation allows extending the output pulse width indefinitely via gated active edge inputs.
• Schmitt trigger inputs on all pins provide high noise immunity and tolerance for slow input rise and fall times.
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent damaging backflow current.
• Direct reset function terminates the output pulse immediately upon receiving a LOW-going edge on the CLR input.

Applications

• Pulse width generation and timing control
• Debouncing of mechanical switches
• Frequency division in digital circuits

Procurement Notes

Verify the specific ordering suffix GN against the manufacturer's latest documentation to confirm the XSON8 SOT1116 package variant. Ensure that the required operating temperature range aligns with the specified -40 °C to +125 °C limits. Confirm compliance with relevant JEDEC standards for the intended supply voltage environment before finalizing procurement specifications.

Selection Notes

Select this component when a single-channel monostable multivibrator with Schmitt trigger inputs is required. It is suitable for mixed 3.3 V and 5 V environments due to its wide supply voltage range. Consider the XSON8 package size if PCB space is limited. Verify that the external REXT and CEXT components can support the desired pulse width calculations within the recommended resistance and capacitance limits.

Part Context

This part belongs to the 74LVC family of logic ICs, designed for low-voltage CMOS applications. The 74LVC1G123 series provides versatile timing functions in compact packages. The GN suffix specifically denotes the XSON8 plastic extremely thin small outline package without leads, offering a small footprint for surface-mount assembly.

Replacement Considerations

Check the 74LVC1G123DP (TSSOP8) or 74LVC1G123DC (VSSOP8) for pin-compatible alternatives if different packaging is required. Verify electrical characteristics match the original design requirements when substituting package types.

FAQ

How is the output pulse width controlled?

The output pulse width is programmed by selecting an external resistor (REXT) and capacitor (CEXT). It can also be extended by retriggering the A or B inputs.

Can the device interface directly with TTL levels?

Yes, the device allows direct interface with TTL levels and accepts input voltages up to 5.5 V.