NXP Semiconductors MPC5746R - Page 20

V
PORST
V
IL
V
IH
V
DD
filtered by
hyst er esi s
filtered by
lowp ass filter
W
FRST
W
NFRST
filtered by
lowp ass filter
W
FRST
unknown reset
state
device under hardware reset
internal
reset
1 2 3a 3b 3c
V
HYS
Figure 7. Noise filtering on reset signal
Table 12. Reset electrical characteristics
Symbol Parameter Conditions Value
1
Unit
Min Typ Max
V
IH
Reset Input high level TTL 3.5 V < VDD_HV_IO < 5.5 V 2.0 — V
DD_HV_IO
+
0.3
V
V
IL
Reset Input low level TTL 3.5 V < VDD_HV_IO < 3.6 V V
SS
- 0.3 — 0.6 V
4.5 V < VDD_HV_IO < 5.5 V V
SS
- 0.3 — 0.8
V
HYS
Reset
Input hysteresis TTL 3.5 V < VDD_HV_IO < 5.5 V 300 — — mV
V
IH
PORST
Input high level CMOS 3.5 V < VDD_HV_IO < 5.5 V 0.65 *
V
DD_HV_IO
— V
DD_HV_IO
+
0.3
V
V
IL
PORST
Input low level CMOS 3.5 V < VDD_HV_IO < 5.5 V V
SS
- 0.3 — 0.35 *
V
DD_HV_IO
V
V
HYS
PORST
Input hysteresis CMOS 3.5 V < VDD_HV_IO < 5.5 V 0.1 *
V
DD_HV_IO
— — mV
V
DD_POR
Minimum supply for strong pulldown
activation
— — — 1.2 V
Table continues on the next page...
Reset pad (PORST, RESET) electrical characteristics
SPC5746R Microcontroller Data Sheet, Rev. 6, 06/2017
20 NXP Semiconductors