This part is a kind of semiconductor called ADM705.

Function of this product has Low Cost uP Supervisory Circuits.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a FEATURES Guaranteed RESET Valid with VCC = 1 V 190 ␮A Quiescent Current Precision Supply-Voltage Monitor 4.65 V (ADM705/ADM707) 4.40 V (ADM706/ADM708) 200 ms Reset Pulsewidth Debounced TTL/CMOS Manual Reset Input ( MR) Independent Watchdog Timer1.6 sec Timeout (ADM705/ADM706) Active High Reset Output (ADM707/ADM708) Voltage Monitor for Power-Fail or Low Battery Warning Superior Upgrade for MAX705–MAX708 Also Available in MicroSOIC Packages APPLICATIONS Microprocessor Systems Computers Controllers Intelligent Instruments Critical ␮ P Monitoring Automotive Systems Critical ␮ P Power Monitoring GENERAL DESCRIPTION WATCHDOG INPUT (WDI) Low Cost ␮P Supervisory Circuits ADM705–ADM708 FUNCTIONAL BLOCK DIAGRAMS WATCHDOG TRANSITION DETECTOR VCC 250␮A MR VCC 4.65V* POWER-FAIL INP [ ... ]

ADM705 PDF Datasheet Download