MC9S12DP512CPVE Freescale, MC9S12DP512CPVE Datasheet - Page 57

• Manufacturer Part Number: MC9S12DP512CPVE
• Manufacturer: Freescale

Specifications of MC9S12DP512CPVE

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 25MHz
• Interface Type: CAN/I2C/SCI/SPI
• Total Internal Ram Size: 14KB
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.25V
• Operating Supply Voltage (min): 2.35/4.5V
• On-chip Adc: 2(8-chx10-bit)
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 112
• Package Type: LQFP
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

2.3.11 PA[7:0] / ADDR[15:8] / DATA[15:8] — Port A I/O Pins
PA7-PA0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.12 PB[7:0] / ADDR[7:0] / DATA[7:0] — Port B I/O Pins
PB7-PB0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.13 PE7 / NOACC / XCLKS — Port E I/O Pin 7
PE7 is a general purpose input or output pin. During MCU expanded modes of operation, the NOACC
signal, when enabled, is used to indicate that the current bus cycle is an unused or “free” cycle. This signal
will assert when the CPU is not using the bus.
The XCLKS is an input signal which controls whether a crystal in combination with the internal Colpitts
(low power) oscillator is used or whether Pierce oscillator/external clock circuitry is used. The state of this
pin is latched at the rising edge of RESET. If the input is a logic low the EXTAL pin is configured for an
external clock drive or a Pierce Oscillator. If input is a logic high a Colpitts oscillator circuit is configured
on EXTAL and XTAL. Since this pin is an input with a pull-up device during reset, if the pin is left
floating, the default configuration is a Colpitts oscillator circuit on EXTAL and XTAL.
* Due to the nature of a translated ground Colpitts oscillator a
Figure 2-3 Colpitts Oscillator Connections (PE7=1)
DC voltage bias is applied to the crystal
Please contact the crystal manufacturer for crystal DC
bias conditions and recommended capacitor value C
MCU
EXTAL
XTAL
C
DC
*
C
1
C
2
DC
.
VSSPLL
MC9S12DP512 Device Guide V01.25
ceramic resonator
Crystal or
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