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AS1922 - Triple-Voltage Micro-Power Microprocessor Supervisory Circuits

Download the AS1922 datasheet PDF. This datasheet also covers the AS1920 variant, as both devices belong to the same triple-voltage micro-power microprocessor supervisory circuits family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

Key Features

  • ! 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AS1920_austriamicrosystemsAG.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number AS1922
Manufacturer austriamicrosystems AG
File Size 309.30 KB
Description Triple-Voltage Micro-Power Microprocessor Supervisory Circuits
Datasheet download datasheet AS1922 Datasheet

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Other Datasheets by austriamicrosystems AG

Part Number Description
AS1920 Triple-Voltage Micro-Power Microprocessor Supervisory Circuits
AS1923 Quad-Voltage Microprocessor Supervisory
AS1925 Ultra-Low Voltage Microprocessor Supervisory Circuit
AS1926 Ultra-Low Voltage Microprocessor Supervisory Circuit
AS1901 Ultra Low-Power uP Supervisory Circuit

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com AS1920, AS1922 Tr i p l e - Vo l ta g e , M i c r o - P o w e r M i c r o p r o c e s s o r Supervi s ory Ci rcuits D a ta S h e e t 1 General Description 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 VCC > +1.0V, these devices are perfect for multiple-voltage systems with low current requirements and strict monitoring requirements. The devices are available as the standard products listed in Table 1. Table 1.