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U5021M_05 Datasheet, PDF (2/11 Pages) ATMEL Corporation – Digital Window Watchdog Timer
Figure 1-1. Block Diagram with External Ciruit
R1
VDD
OSC 8
C1
RC
Oscillator
C
VDD
10 nF
6
Reset 5
OSC
Micro-
controller
Trigger 2
Mode 3
OSC
Input signal
conditioning
POR
Power-on
reset
Wake-up 1
7
GND
State machine
4
External
switching
Enable circuitry
POR
Test logic
2. Pin Configuration
Figure 2-1. Pinning SO8
WAKE-UP 1
TRIG 2
MODE 3
ENA 4
8 OSC
7 GND
6 VDD
5 RESET
2 U5021M
4756D–AUTO–11/05