User Manual

Model SM200 Data Sheet · Document Number 430145-01B · Page 10 of 21
©2012 Synapse Wireless, Inc. · 500 Discovery Drive, Huntsville, AL 35806 · 256-852-7888 · synapse-wireless.com
Table 1.5. Reset, Brown-out and Internal Voltage Characteristics
Symbol
Parameter
Condition
Min
Typical
Max
Unit
V
POT(rising)
Power-on Reset Threshold
Voltage (rising)
Power supply
fully discharged
1.6 V
V
POT(falling)
Power-on Reset Threshold
Voltage (falling)
0.05 0.3 V
t
POT
Power-on Reset recovery time
Time of
EVDD/DEVDD
< V
POT
1.0 ms
V
PSR
Power-on slope rate 1.8 3300 V/ms
V
RST
RSTN Pin Threshold Voltage 0.1V
DD
0.9
V
DD
V
t
RST
Minimum pulse width on RSTN
Pin
200 300 ns
V
HYS
Brown-out Detector Hysteresis 7.5 50 mV
t
BOD
Min Pulse Width on Brown-out
Reset
100 ns
Contact ATMEL for additional details