The AS1920 and AS1922 microprocessor supervisory circuits were designed to generate a reset when at least one of the three monitored supply voltages falls below its respective trip threshold. These very-low-current (6.2µA, typ) devices maintain reset for a minimum timeout period after all supplies have stabilized. Guaranteed to be in the correct state for VC.
! Simultaneous Triple-Voltage Monitoring Very-Low Supply Current: 6.2µA ±1.5% Accuracy Over Temperature Reset Time Delay: 200ms Power Supply Transient Immunity Guaranteed Reset for VCC3 ≥ 1V or VCC18 ≥ 1V Active-Low Push/Pull Reset Output (AS1920) Active-Low Open-Drain Reset Output (AS1922) 5-pin SOT23 Package ! ! ! ! ! ! All devices monitor primary and secondary factorytrimmed voltages. Additionally, a third monitoring voltage can be selected via an external resistor divider. The AS1920 has an active-low push/pull reset output, whereas the AS1922 has an active-low open-drain reset out.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AS192-300 |
Alpha Industries |
PHEMT GaAs IC High Power SP4T Switch 0.1-2.5 GHz | |
2 | AS1920 |
austriamicrosystems AG |
Triple-Voltage Micro-Power Microprocessor Supervisory Circuits | |
3 | AS1923 |
austriamicrosystems AG |
Quad-Voltage Microprocessor Supervisory | |
4 | AS1925 |
austriamicrosystems AG |
Ultra-Low Voltage Microprocessor Supervisory Circuit | |
5 | AS1926 |
austriamicrosystems AG |
Ultra-Low Voltage Microprocessor Supervisory Circuit | |
6 | AS190-73 |
Alpha Industries |
PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1-2 GHz | |
7 | AS1901 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit | |
8 | AS1902 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit | |
9 | AS1903 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit | |
10 | AS1904 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit | |
11 | AS1905 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit | |
12 | AS1906 |
austriamicrosystems AG |
Ultra Low-Power uP Supervisory Circuit |