ADM823SYRJZ

Supervisory Circuit, Watchdog and Manual Reset, SOT23-5, 2.5 V to 5 V power supply, 140 ms reset timeout

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Price:: US $0.60~0.95 / piece [Get Latest Price]

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PartNumber:: ADM823SYRJZ

Brand:: Analog Devices - ADI | Pack: SOT | D/C: 11+

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Products Upload time: 2011-08-15

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Part Number:ADM823SYRJZ
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Product Summary

The ADM823SYRJZ is a supervisory circuit that monitors power supply voltage levels and code execution integrity in microprocessor based systems. In addition to providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external pushbutton, through a manual reset input. The three parts feature different combinations of watchdog input, manual reset input, and output stage configuration. The ADM823SYRJZ is available in 5-lead SC70 and SOT-23 packages and typically consume only 5 μA, making them suitable for use in low power, portable applications.

Parametrics

ADM823SYRJZ absolute maximum ratings: (1)VCC: -0.3 V to +6 V; (2)Output Current (RESET, RESET): 20 mA; (3)All Other Pins: -0.3 V to (VCC + 0.3 V); (4)Operating Temperature Range: -40℃ to +125℃; (5)Storage Temperature Range: -65℃ to +150℃; (6)θJA Thermal Impedance: SC70 146℃/W; SOT-23: 270℃/W; (7)Lead Temperature: Soldering (10 sec) 300℃; Vapor Phase (60 sec) 215℃; Infrared (15 sec) 220℃.

Features

ADM823SYRJZ features: (1)Precision 2.5 V to 5 V power supply monitor; (2)7 reset threshold options: 2.19 V to 4.63 V; (3)140 ms (minimum) reset timeout; (4)Watchdog timer with 1.6 sec timeout (ADM823, ADM824); (5)Manual reset input (ADM823, ADM825); (6)Push-pull output stages: RESET (ADM823); RESET, RESET (ADM824/ADM825); (7)Low power consumption: 5 μA; (8)Guaranteed reset output valid to VCC = 1 V; (9)Power supply glitch immunity; (10)Specified over automotive temperature range; (11)5-lead SC70 and SOT-23 packages.