MPC564MZP66 Freescale Semiconductor, MPC564MZP66 Datasheet - Page 613

• Manufacturer Part Number: MPC564MZP66
• Description: IC MCU 512K FLASH 66MHZ 388-BGA
• Manufacturer: Freescale Semiconductor
• Series: MPC5xxr

Specifications of MPC564MZP66

• Core Processor: PowerPC
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 2.7 V
• Data Converters: A/D 32x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 388-BGA
• For Use With: MPC564EVB - KIT EVAL FOR MPC561/562/563/564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

In
C
to provide charge to C
The following paragraphs provide a simplified description of the interaction between the QADC64E and
the external circuitry. This circuitry is assumed to be a simple RC low-pass filter passing a signal from a
source to the QADC64E input signal. The following simplifying assumptions are made:
14.6.5.1
The source impedance of the analog signal to be measured and any intermediate filtering should be
considered whether external multiplexing is used or not.
typical analog signal sources to one QADC64E analog input signal through a separate multiplexer chip.
Also, an example of an analog signal source connected directly to a QADC64E analog input channel is
displayed.
Freescale Semiconductor
SAMP
Figure
•
•
•
•
is the capacitor array used to sample and hold the input voltage. V
The external capacitor is perfect (no leakage, no significant dielectric absorption characteristics,
etc.)
All parasitic capacitance associated with the input signal is included in the value of the external
capacitor
Inductance is ignored
The “on” resistance of the internal switches is 0 Ω and the “off” resistance is infinite
14-50, R
V
R
C
C
R
C
V
SRC
F
F
P
SRC
SAMP
Source
I
= Filter Impedance
= Filter Capacitor
= Internal Voltage Source During Sample and Hold
Analog Input Considerations
= Internal Parasitic Capacitance
V
SRC
R
= Source Impedance
= Source Voltage
= Sample Capacitor
SRC
F
, R
SRC
SAMP
External Filter
and C
Figure 14-50. Electrical Model of an A/D Input Signal
during sample phase.
R F
C
F
F
MPC561/MPC563 Reference Manual, Rev. 1.2
comprise the external filter circuit. C
Internal Circuit Model
S1
C
P
Figure 14-51
AMP
QADC64E Sample AMP Model
P
shows the connection of eight
S2
I
is the internal parasitic capacitor.
is an internal voltage source used
QADC64E Enhanced Mode Operation
C
SAMP
S3
V
I
14-71