MPU Supervisory ICs have low-voltage/low-threshold design.

Press Release Summary:

Designed to monitor low-voltage core supplies or single-cell battery applications, AS1925 and AS1926 will force reset if monitored supply voltage drops below reset threshold. Factory-trimmed voltage thresholds from 0.81-1.425 V are available for monitoring 0.9, 1.2, and 1.5 V supplies with 5% or 10% tolerances. While AS1925 features push-pull active-high and active-low reset output, AS1926 offers push-pull active-high and open-drain active-low reset output.

Original Press Release:

austriamicrosystems Launches Low-Voltage/Low-Threshold Microprocessor Supervisory Circuits

Monitoring supplies between 0.9V to 1.5V, the AS1925 and AS1926 are ideal for monitoring low-voltage core supplies or single-cell battery applications

Unterpremstaetten, Austria (10 July, 2007) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of analog integrated circuits (ICs) for communications, industrial, medical and automotive applications, today expanded its supervisory portfolio with the AS1925 and AS1926 single ultra low voltage microprocessor supervisory ICs.

The AS1925/26 were designed to monitor supply rails of 0.9V to 1.5V in µP and digital systems, without the need for external components, and forces a reset if the monitored supply voltage drops below its reset threshold. A variety of different factory-trimmed voltage thresholds from 0.81V to 1.425V are available for monitoring 0.9V, 1.2V and 1.5V supplies with 5% or 10% tolerances. The preset voltages can be monitored without external components.

The AS1925 features both a push-pull active-high and active-low reset output. On the other hand the AS1926 offers a push-pull active-high and an open-drain active-low reset output. Resets can be forced for a specified reset timeout period, such as 1.5ms, 30ms, 210ms and 1.68s, after the voltage has stabilized. The active-low output is valid as long as the supervised input voltage remains >0.55V. The AS1925 and AS1926 operate from +0.55V/0.75V to +1.8V, while consuming only 3.5µA of supply current.

The devices are available in a small 5-pin SOT23 package suitable for operating environments ranging from -40°C to +85°C. Product specific information can be downloaded from austriamicrosystems' website at

About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS). For more information, please visit the web site at

Technical Contact
austriamicrosystems AG
Manfred Kogler
Marketing Manager Standard Linear
Tel: +43 (0) 3136 500 5274
Fax: +43 (0) 3136 500 5420

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