MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 86

• 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

Functional Description
2.4.2.1 Normal Mode Operation
The ADC has two normal operating modes: single-ended mode and differential mode.
For a given sample, the mode of operation is determined by the CTRL1[CHNCFG] field:
86
• Single-ended mode (CHNCFG bit=0). The input multiplex of the ADC selects one of
• Differential mode (CHNCFG bit=1). The ADC measures the voltage difference
the 8 analog inputs and directs it to the plus terminal of the A/D core. The minus
terminal of the A/D core is connected to the V
the voltage of the selected analog input and compares it against the (V
V
between two analog inputs and compares that value against the (V
voltage range. The input is selected as an input pair: ANA0/1, ANA2/3, ANA4/5,
REFLO
ANA0
ANA7
ANB0
ANB1
) reference voltage range.
Input Select
Input Select
Multiplex
Multiplex
Analog
Analog
Figure 2-70. Top-Level Diagram of Cyclic ADC
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
Interface Function/
Interface Function/
Program Gain
Program Gain
Preliminary
Multiplex
Multiplex
REFLO
θ θ
reference. The ADC measures
RSD 1
RSD 1
Cyclic ADC Core
θ 1
Converter A
Cyclic ADC Core
Converter B
θ 1
REFH
Freescale Semiconductor
RSD 2
RSD 2
θ 2 2
θ 2 2
REFH
–V
REFLO
-
)