MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 1233

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

For power-down, the low voltage supply should come down before the high voltage supply, although with
varying loads, the high voltage may actually get ahead.
Figure F-7
the power-down sequence if a keep-alive supply is required.
F.9
F.9.1
When V
V
V
start driving when V
asserted during power-up before V
Freescale Semiconductor
DDH
DDL
V
V
, then the 5 V drivers can come out of tristate when V
DDH
DDL
reaches 1.6V, all 5 V outputs are unknown. If V
V
V
DDH
DDL
DDH
Issues Regarding Power Sequence
illustrates the power-down sequence if no keep-alive supply is required.
Application of PORESET or HRESET
is rising and V
V
DDH
V
Figure F-7. Option B Power-Down Sequence Without Keep-Alive Supply
DDH
Figure F-8. Option B Power-Down Sequence with Keep-Alive Supply
cannot lead V
DDL
cannot lead V
reaches 0.5 V. For these reasons, the PORESET or HRESET signal must be
0.5-V lag
DDL
0.5-V lag
DDL
is at 0.0 V, as V
MPC561/MPC563 Reference Manual, Rev. 1.2
DDL
by more than 0.5V
DDL
by more than 0.5V
is above 0.5 V.
V
DDH
DDH
≤ 5.25V
reaches 1.6 V, all 5 V drivers are tristated. Before
DDL
is rising and V
DDL
reaches 1.1V, and the 2.6 V drivers can
Ramp down rates may
differ with load.
Ramp down rates may
differ with load.
DDH
is at least 3.1V greater than
V
Figure F-8
DDKAP
Electrical Characteristics
illustrates
F-17