MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 535
MPC561MZP56
Manufacturer Part Number
MPC561MZP56
Description
Manufacturer
Freescale
Datasheet
1.MPC561MZP56.pdf
(1420 pages)
Specifications of MPC561MZP56
Cpu Family
MPC56x
Device Core
PowerPC
Device Core Size
32b
Frequency (max)
56MHz
Interface Type
QSPI/SCI/SPI/UART
Total Internal Ram Size
32KB
# I/os (max)
56
Number Of Timers - General Purpose
22
Operating Supply Voltage (typ)
2.6/5V
Operating Supply Voltage (max)
2.7/5.25V
Operating Supply Voltage (min)
2.5/4.75V
On-chip Adc
2(32-chx10-bit)
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
388
Package Type
BGA
Program Memory Type
ROMLess
Program Memory Size
Not Required
Lead Free Status / RoHS Status
Not Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MPC561MZP56
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MPC561MZP56R2
Manufacturer:
Freescale Semiconductor
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13.7.4
V
reference inputs from the power supply signals allows for additional external filtering, which increases
reference voltage precision and stability, and subsequently contributes to a higher degree of conversion
accuracy.
No A/D converter can be more accurate than its analog reference. Any noise in the reference can result in
at least that much error in a conversion. The reference for the QADC64E, supplied by signals V
V
capacitive bypassing may sufficed. In extreme cases, inductors or ferrite beads may be necessary if noise
or RF energy is present. Series resistance is not advisable since there is an effective DC current
requirement from the reference voltage by the internal resistor string in the RC DAC array. External
resistance may introduce error in this architecture under certain conditions. Any series devices in the filter
network should contain a minimum amount of DC resistance.
13.7.5
Analog inputs should have low AC impedance at the signals. Low AC impedance can be realized by
placing a capacitor with good high frequency characteristics at the input signal of the part. Ideally, that
capacitor should be as large as possible (within the practical range of capacitors that still have good high
frequency characteristics). This capacitor has two effects:
Freescale Semiconductor
RH
RL
•
, should be low-pass filtered from its source to obtain a noise-free, clean signal. In many cases, simple
and V
It helps attenuate any noise that may exist on the input.
PCB
RL
Analog Reference Signals
Analog Input Signals
are the dedicated input signals for the high and low reference voltages. Separating the
+5V
Figure 13-51. Star-Ground at the Point of Power Supply Origin
Analog Power Supply
AGND
QADC64E
MPC561/MPC563 Reference Manual, Rev. 1.2
+5V
VDD
VSS
PGND
Digital Power
QADC64E Legacy Mode Operation
Supply
+5V
RH
, and
13-71
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