MSP3438G Datasheet, PDF (55/84 Pages) Micronas – Multistandard Sound Processor Family

PRELIMINARY DATA SHEET
MSP 3438G
4.6.3.3. Reset Input and Power-Up
Symbol
Parameter
Pin Name
RESETQ Input Levels
V_RHL
V_RLH
Z_RES
I_RES
Reset High-Low Transition Voltage RESETQ
Reset Low-High Transition Voltage
Input Impedance
Input Pin Leakage Current
Min. Typ. Max. Unit
Test Conditions
0.45
0.7
-1
0.55
0.8
5
1
V_SUP2
V_SUP2
pF
µA
0 V < U_INPUT< DVSUP
DVSUP
AVSUP
4.5V
RESETQ
0.7 × DVSUP
Low-to-High
Threshold
0.45...0.55 × DVSUP
Reset Delay
>2 ms
Internal
Reset
High
High-to-Low
Threshold
t/ms
Note: The reset should
not reach high level
before the oscillator has
started. This requires a
reset delay of >2 ms
0.7 x DVSUP means
3.5 Volt with
DVSUP = 5.0 V
t/ms
Low
Fig. 4–22: Power-up sequence
MICRONAS INTERMETALL
t/ms
55