MSP 34x1G
PRELIMINARY DATA SHEET
4.6.3.3. Reset Input and Power-Up
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
RESETQ Input Levels
V
V
Reset High-Low Transition Voltage RESETQ
Reset Low-High Transition Voltage
Input Capacitance
0.3
0.4
0.55
5
V
V
RHL
RLH
RES
RES
SUP2
0.45
SUP2
Z
pF
I
Input High Current
20
µA
U
= DVSUP
RESETQ
DVSUP
AVSUP
4.5 V
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. 4–26: Power-up sequence
68
Micronas
MICRONAS [ MICRONAS ]
