MPC5644B View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MPC5644B' PDF : 114 Pages View PDF
4.7 RESET electrical characteristics
The device implements a dedicated bidirectional RESET pin.
VDD_HV_A
VDDMIN
RESET
VIH
VIL
VRESET
VDD
VIH
device reset forced by RESET
device start-up phase
Figure 6. Start-up reset requirements
hw_rst
‘1’
VIL
‘0’
filtered by filtered by
hysteresis lowpass filter
filtered by
unknown reset
lowpass filter state
device under hardware reset
WFRST
WFRST
WNFRST
Figure 7. Noise filtering on reset signal
Table 21. Reset electrical characteristics
Symbol C
Parameter
Conditions1
Value2
Unit
Min Typ Max
VIH SR P Input High Level CMOS
(Schmitt Trigger)
—
0.65VDD — VDD + 0.4 V
MPC5646C Microcontroller Data Sheet, Rev. 3
Freescale Semiconductor
Preliminary—Subject to Change Without Notice
53
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