MCF5282CVF80J Freescale Semiconductor, MCF5282CVF80J Datasheet - Page 594
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MCF5282CVF80J
Manufacturer Part Number
MCF5282CVF80J
Description
IC MPU 512K FLASH 256MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF528xr
Datasheet
1.MCF5216CVM66J.pdf
(766 pages)
Specifications of MCF5282CVF80J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
150
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
256-MAPBGA
Processor Series
MCF528x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5282-KIT
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5282CVF80J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Queued Analog-to-Digital Converter (QADC)
While there is only one result word table, the half-word (16-bit) data can be accessed in three different data
formats:
The left justified, signed format corresponds to a half-scale, offset binary, two’s complement data format.
The address used to read the result table determines the data alignment format. All write operations to the
result word table are right justified.
28.9
The QADC requires accurate, noise-free input signals for proper operation. This section discusses the
design of external circuitry to maximize QADC performance.
28.9.1
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 QADC, supplied by signals V
should be low-pass filtered from its source to obtain a noise-free, clean signal. In many cases, simple
capacitive bypassing may suffice. In extreme cases, inductors or ferrite beads may be necessary if noise or
RF energy is present. 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.
For accurate conversion results, the analog reference voltages must be within the limits defined by V
and V
28.9.2
The analog supply signals (V
V
28-56
RL
•
•
•
) and of the analog multiplexer inputs.
SSA
Right justified with 0s in the higher order unused bits
Left justified with the most significant bit inverted to form a sign bit, and 0s in the unused lower
order bits
Left justified with 0s in the lower order unused bits
, as explained in this subsection.
Signal Connection Considerations
Analog Reference Signals
Analog Power Signals
Although the result RAM can be written, some write operations, like bit
manipulation, may not operate as expected because the hardware cannot
access a true 16-bit value.
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
DDA
and V
SSA
Figure 28-44
) define the limits of the analog reference voltages (V
NOTE
is a diagram of the analog input circuitry.
Freescale Semiconductor
RH
and V
RH
DDA
and
RL
,
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