MC912DG128AMPVE Freescale Semiconductor, MC912DG128AMPVE Datasheet - Page 53

IC MCU 128K FLASH 8MHZ 112-LQFP

MC912DG128AMPVE

Manufacturer Part Number
MC912DG128AMPVE
Description
IC MCU 128K FLASH 8MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MC912DG128AMPVE

Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
CAN, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x8/10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
112-LQFP
Processor Series
HC912D
Core
HC12
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
69
Number Of Timers
8
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
2 (8-ch x 10-bit)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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3.4.11 Instruction Queue Tracking Signals (IPIPE1 and IPIPE0)
3.4.12 Data Bus Enable (DBE)
3.4.13 Inverted E clock (ECLK)
3.4.14 Calibration reference (CAL)
MC68HC912DT128A — Rev 4.0
MOTOROLA
IPIPE1 (PE6) and IPIPE0 (PE5) signals are used to track the state of the
internal instruction queue. Data movement and execution state
information is time-multiplexed on the two signals. Refer to
Support.
The DBE pin (PE7) is an active low signal that will be asserted low during
E-clock high time. DBE provides separation between output of a
multiplexed address and the input of data. When an external address is
stretched, DBE is asserted during what would be the last quarter cycle
of the last E-clock cycle of stretch. In expanded modes this pin is used
to enable the drive control of external buses during external reads. Use
of the DBE is controlled by the NDBE bit in the PEAR register. DBE is
enabled out of reset in expanded modes.
The ECLK pin (PE7) can be used to latch the address for de-
multiplexing. It has the same behavior as the ECLK, except is inverted.
In expanded modes this pin is used to enable the drive control of external
buses during external reads. Use of the ECLK is controlled by the NDBE
and DBENE bits in the PEAR register.
The CAL pin (PE7) is the output of the Slow Mode programmable clock
divider, SLWCLK, and is used as a calibration reference. The SLWCLK
frequency is equal to the crystal frequency out of reset and always has
a 50% duty. If the DBE function is enabled it will override the enabled
CAL output. The CAL pin output is disabled by clearing CALE bit in the
PEAR register.
Freescale Semiconductor, Inc.
For More Information On This Product,
Pinout and Signal Descriptions
Go to: www.freescale.com
Pinout and Signal Descriptions
Signal Descriptions
Development
Technical Data
53

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