MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 87

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

A mix and match combination of single-ended and differential configurations may exist.
For example:
2.4.2.1.1 Single-Ended Samples
The ADC module performs a ratio metric conversion. For single-ended measurements,
the digital result is proportional to the ratio of the analog input to the reference voltage:
2.4.2.1.2 Differential Samples
For differential measurements, the digital result is proportional to the ratio of the
difference in the inputs to the difference in the reference voltages (V
When differential measurements are converted, the following formula is useful:
Freescale Semiconductor
SingleEndedValue = round(((V
V
V
Note: The 12-bit result is rounded to the nearest LSB.
Note: The ADC is a 12-bit function with 4096 possible states. However, the 12 bits have been left shifted by 3 bits on the
V
V
Note: The 12-bit result is rounded to the nearest LSB.
Note: The ADC is a 12-bit function with 4096 possible states. However, the 12 bits have been left shifted three bits on the
IN
REFH
IN
REFH
• ANA[0:1] differential; ANA[2:3] single-ended
• ANA[4:5] differential; ANA[6:7] single-ended
• ANB[0:1] differential; ANB[2:3] single-ended
• ANB[4:5] differential; ANB[6:7] single-ended
=Applied voltage at the input pin
is the applied voltage at the input pin.
ANA6/7, ANB0/1, ANB2/3, ANB4/5, or ANB6/7. The plus terminal of the A/D core
is connected to the even analog input, and the minus terminal is connected to the odd
analog input.
and V
and V
16-bit data bus. As a result, the magnitude of this function, as read from the data bus, is now 32760.
16-bit data bus, so the magnitude of this function, as read from the data bus, is now 32760.
REFLO
REFLO
=Voltage at the external reference pins on the device (typically V
are the voltages at the external reference pins on the device (typically V
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
IN
- V
REFLO
)/(V
Preliminary
REFH
- V
REFLO
)) × 4096) × 8
Chapter 2 Analog-to-Digital Converter (ADC)
REFH
=V
DDA
REFH
and V
=V
REFH
DDA
REFLO
and V
and V
=V
REFLO
SSA
REFLO
)
=V
SSA
).
).
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