U5021M_05 ATMEL [ATMEL Corporation], U5021M_05 Datasheet
U5021M_05
Related parts for U5021M_05
U5021M_05 Summary of contents
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Features • Low Current Consumption: I < 100 µA DD • RC Oscillator • Internal Reset During Power-up and Supply Voltage Drops (POR) • “Short” Trigger Window for Active Mode, “Long” Trigger Window for Sleep Mode • Cyclical Wake-up of ...
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Figure 1-1. Block Diagram with External Ciruit OSC Reset 5 Micro- controller 2 Trigger 3 Mode 1 Wake-up 2. Pin Configuration Figure 2-1. Pinning SO8 U5021M ...
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Pin Description Pin Symbol Function Wake-up input (pull-down resistor) 1 WAKE-UP There is one digitally debounced wake-up input. During the long watchdog window, each signal slope at the input initiates a reset pulse at pin 5. Trigger input (pull-up ...
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Figure 4-1. Period t versus 1000.00 100.00 t (µs) 10.00 1.00 1 Figure 4-2. Power-on Reset and Switch-over Mode VDD Reset Out Mode 4.3 Supply Voltage Monitoring, Pin 5 During ramp-up of the supply voltage ...
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Microcontroller in Active Mode 4.5.1 Monitoring with the “Short” Trigger Window After the switch-over mode the watchdog operates in short watchdog mode and expects a trig- ger pulse from the microcontroller within the defined time window, t watchdog generates ...
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Figure 4-4. Pulse Diagram of a Correct Trigger Sequence During the Short Watchdog Time V DD Reset out Mode Trigger Enable Figure 4-5 during the enable time, t The watchdog can be switched back from the long to the short ...
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Figure 5-1. State Diagram Reset state time out t 0 Mode switch state time out t 1 trg = 0 time out t 6 Reset out state Notes: "mode" and "trg" are the debounced input signals from the pins MODE ...
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Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated ...
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Electrical Characteristics (Continued -40°C to +85°C; reference point is pin 7, unless otherwise specified DD amb Parameters Test Conditions Timing R (1) Frequency deviation V Debounce time Debounce time Maximum trigger pulse length ...
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Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4756D-AUTO-11/05 4756C-AUTO-09/04 4756B-AUTO-07/04 U5021M 10 History Put datasheet in a new template First ...
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Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 ...