MC912DT128ACPV Freescale Semiconductor, MC912DT128ACPV Datasheet - Page 127
MC912DT128ACPV
Manufacturer Part Number
MC912DT128ACPV
Description
IC 8MHZ 16 BIT MICROCONTROLLER
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet
1.MC912DG128ACPVER.pdf
(478 pages)
Specifications of MC912DT128ACPV
Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
CAN, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
67
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 ~ 85°C
Package / Case
112-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
KMC912DT128ACPV
Q1195202
Q1195202
Available stocks
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Quantity
Price
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Part Number:
MC912DT128ACPVE
Manufacturer:
MEANWELL
Quantity:
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MC912DT128ACPVE
Manufacturer:
Freescale Semiconductor
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MC68HC912DT128A — Rev 4.0
MOTOROLA
CAUTION:
NOTE:
EEDIV[9:0] — Prescaler divider
An incorrect or uninitialized value on EEDIV can result in overstress of
EEPROM array during program/erase operation. It is also strongly
recommend not to program EEPROM with oscillator frequencies less
than 250 Khz.
INT[A] denotes the round down integer value of A. Program/erase cycles
will not be activated when EEDIV = 0.
Loaded from SHADOW word at reset.
Read anytime. Write once in normal modes (SMODN =1) if EELAT =
0 and anytime in special modes (SMODN =0) if EELAT = 0.
The prescaler divider is required to produce a self-time clock with a
fixed frequency around 28.6 Khz for the range of oscillator
frequencies. The divider is set so that the oscillator frequency can be
divided by a divide factor that can produce a 35 µs ± 2µs timebase.
The EEDIV value is determined by the following formula:
Freescale Semiconductor, Inc.
For More Information On This Product,
Osc Freq.
500 Khz
250 Khz
16 Mhz
8 Mhz
4 Mhz
2 Mhz
1 Mhz
Go to: www.freescale.com
EEPROM Memory
EEDIV
Table 9-1. EEDIV Selection
Osc Period
=
62.5ns
125ns
250ns
500ns
1µs
2µs
4µs
INT
[
EXTALi
Divide Factor
(hz) x 35
560
280
140
70
35
18
9
×10
6 –
EEPROM Control Registers
+
0.5
]
EEPROM Memory
EEDIV
$008C
$0230
$0118
$0046
$0023
$0012
$0009
Technical Data
127
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