mpc5534mzq66 Freescale Semiconductor, Inc, mpc5534mzq66 Datasheet - Page 12

• Manufacturer Part Number: mpc5534mzq66
• Description: Mpc5534 High Performance Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
the internal 3.3-V POR or the RESET power POR must be depended on to hold the device in reset. Since
they may negate as low as 2.0 V, it is necessary for VDD to be within spec before the 3.3-V POR and the
RESET POR negate.
3.7.2
In this case, the only requirement is that if VDD falls below its operating range, VDDSYN or the RESET
power must fall below 2.0 V before VDD is allowed to rise back into its operating range. This ensures that
digital 1.5-V logic that is only reset by ORed_POR, which may have been affected by the 1.5V supply
falling below spec, is reset properly.
3.7.3
In order to avoid accidentally selecting the bypass clock because PLLCFG[0:1] and RSTCFG are not
treated as 1s when POR negates, VDD33 must not lag VDDSYN and the RESET pin power (VDDEH6)
when powering the device by more than the VDD33 lag specification in
lag either VDDSYN or the RESET pin power (VDDEH6) by more than the VDD33 lag specification.
VDD33 can lag one of the VDDSYN or VDDEH6 supplies, but cannot lag both by more than the VDD33
lag specification. This VDD33 lag specification only applies during power up. VDD33 has no lead or lag
requirements when powering down.
3.8
12
Num
1
2
3
4
5
Core Supply Voltage (average DC RMS voltage)
I/O Supply Voltage (Fast I/O)
I/O Supply Voltage (Slow/Medium I/O)
3.3V I/O Buffer Voltage
Voltage Regulator Control Input Voltage
DC Electrical Specifications
Power Down Sequence (If VRC33 Grounded)
Input Value of Pins During POR Dependent on VDD33
VDD must reach 1.35V before VDDSYN and the RESET power reach 2.0V
2.0V
Characteristic
Figure 2. Power Up Sequence if VRC33 Grounded
Preliminary—Subject to Change Without Notice
MPC5534 Microcontroller Data Sheet, Rev. 0
Table 9. DC Electrical Specifications
1.35V
VDDSYN and RESET Power
Symbol
V
V
V
V
V
DDEH
DD33
RC33
DDE
DD
Table
VDD
6. VDD33 individually can
1.35
1.62
Min
3.0
3.0
3.0
Freescale Semiconductor
Max
1.65
5.25
3.6
3.6
3.6
Unit
V
V
V
V
V