This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.
Pin assignments are identical to those of the SN74AHC123A and SN74AHCT123A devices, so the SN74LV221A-Q1 can be substituted for those devices not using the retrigger feature.
For additional application information on multivibrators, see the application report Designing With The SN74AHC123A and SN74AHCT123A, literature number SCLA014.
Feature
- Qualified for Automotive Applications
- 2-V to 5.5-V VCC Operation
- Supports Mixed-Mode Voltage Operation on All Ports
- Schmitt-Trigger Circuitry on Q outputs are in the high state. The outputs are glitch free, without applying a reset pulse.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.
Pin assignments are identical to those of the SN74AHC123A and SN74AHCT123A devices, so the SN74LV221A-Q1 can be substituted for those devices not using the retrigger feature.
For additional application information on multivibrators, see the application report Designing With The SN74AHC123A and SN74AHCT123A, literature number SCLA014.
