MSP 34x0G
DATA SHEET
4.6.3.3. Reset Input and Power-Up
Symbol
Parameter
Pin Name
Limit Values
Typ.
Unit
Test Conditions
Min.
Max.
RESETQ Input Levels
V
V
Reset High-Low Transition Voltage RESETQ
Reset Low-High Transition Voltage
Input Capacitance
0.3
0.4
V
V
RHL
RLH
RES
RES
SUP2
SUP2
0.45
Z
5
pF
I
Input High Current
20
µA
U
= DVSUP
RESETQ
DVSUP
AVSUP
0.9×DVSUP
t/ms
RESETQ
Note: The reset should
not reach high level
before the oscillator has
started. This requires a
reset delay of >2 ms
Low-to-High
Threshold
0.45×DVSUP
High-to-Low
Threshold
0.3...0.4×DVSUP
0.45 x DVSUP means
2.25 Volt with
DVSUP = 5.0 V
t/ms
Reset Delay
>2 ms
Internal
Reset
High
Low
t/ms
Fig. 4–25: Power-up sequence
70
May 27, 2003; 6251-476-1DS
Micronas
MICRONAS [ MICRONAS ]
