MPC555LFMZP40 Freescale Semiconductor, MPC555LFMZP40 Datasheet - Page 426

• Manufacturer Part Number: MPC555LFMZP40
• Description: IC MCU 32BIT 40MHZ 272-BGA
• Manufacturer: Freescale Semiconductor
• Series: MPC5xxr

Specifications of MPC555LFMZP40

• Core Processor: PowerPC
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 101
• Program Memory Size: 448KB (448K x 8)
• Program Memory Type: FLASH
• Ram Size: 26K 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: 272-PBGA
• Controller Family/series: POWER 5xx
• Ram Memory Size: 26KB
• Cpu Speed: 63MIPS
• Embedded Interface Type: QSPI, SCI, TouCAN
• Operating Temperature Range: -40°C To +125°C
• No. Of Pins: 272
• Rohs Compliant: No
• Processor Series: MPC5xx
• Core: PowerPC
• Data Bus Width: 32 bit
• Data Ram Size: 26 KB
• Interface Type: CAN, QSPI, SCI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 101
• Operating Supply Voltage: 3.3 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: MPC555CMEE
• Minimum Operating Temperature: - 85 C
• On-chip Adc: 10 bit, 32 Channel
• Cpu Family: MPC55xx
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 40MHz
• Total Internal Ram Size: 32KB
• # I/os (max): 101
• Operating Supply Voltage (typ): 5V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 272
• Package Type: BGA
• For Use With: MPC555CMEE - KIT EVAL FOR MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

13.9.2 Front-End Analog Multiplexer
13.9.3 Digital-to-Analog Converter Array
13.9.4 Comparator
13.9.5 Successive Approximation Register
13.10 Digital Control Subsystem
MPC555
USER’S MANUAL
The internal multiplexer selects one of the 16 analog input pins or one of three special
internal reference channels for conversion. The following are the three special chan-
nels:
The selected input is connected to one side of the DAC capacitor array. The other side
of the DAC array is connected to the comparator input. The multiplexer also includes
positive and negative stress protection circuitry, which prevents other channels from
affecting the present conversion when excessive voltage levels are applied to the oth-
er channels.
The digital-to-analog converter (DAC) array consists of binary-weighted capacitors
and a resistor-divider chain. The array serves two purposes:
Resolution begins with the MSB and works down to the LSB. The switching sequence
is controlled by the SAR logic.
The comparator is used during the approximation process to sense whether the digi-
tally selected arrangement of the DAC array produces a voltage level higher or lower
than the sampled input. The comparator output feeds into the SAR which accumulates
the A/D conversion result sequentially, starting with the MSB.
The input of the successive approximation register (SAR) is connected to the compar-
ator output. The SAR sequentially receives the conversion value one bit at a time,
starting with the MSB. After accumulating the ten bits of the conversion result, the SAR
data is transferred by the queue control logic in the digital section to the appropriate
result location, where it may be read by user software.
The digital control subsystem includes the clock and periodic/interval timer, control
and status registers, the conversion command word table RAM, and the result word
table RAM.
The central element for control of the QADC64 conversions is the 64-entry CCW table.
Each CCW specifies the conversion of one input channel. Depending on the applica-
tion, one or two queues can be established in the CCW table. A queue is a scan se-
quence of one or more input channels. By using a pause mechanism, sub-queues can
• V
• V
• (V
• The array holds the sampled input voltage during conversion
• The resistor-capacitor array provides the mechanism for the successive approx-
/
imation A/D conversion
MPC556 QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE-64
RH
RL
RH
— Reference Voltage Low
— Reference Voltage High
– V
RL
)/2 — Mid-Reference Voltage
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Rev. 15 October 2000
MOTOROLA
13-14