MC9S12XET256MAL Freescale Semiconductor, MC9S12XET256MAL Datasheet - Page 526
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MC9S12XET256MAL
Manufacturer Part Number
MC9S12XET256MAL
Description
MCU 16BIT 256K FLASH 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12XEP768CAL.pdf
(1328 pages)
Specifications of MC9S12XET256MAL
Core Processor
HCS12X
Core Size
16-Bit
Speed
50MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
91
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 12x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
112-LQFP
Cpu Family
HCS12X
Device Core Size
16b
Frequency (max)
50MHz
Interface Type
CAN/SCI/SPI
Total Internal Ram Size
16KB
# I/os (max)
91
Number Of Timers - General Purpose
25
Operating Supply Voltage (typ)
1.8/2.8/5V
Operating Supply Voltage (max)
1.98/2.9/5.5V
Operating Supply Voltage (min)
1.72/2.7/3.13V
On-chip Adc
16-chx12-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
112
Package Type
LQFP
No. Of I/o's
91
Eeprom Memory Size
4KB
Ram Memory Size
16KB
Cpu Speed
50MHz
No. Of Timers
3
No. Of Pwm Channels
8
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Processor Series
S12XE
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
91
Number Of Timers
25
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12XET256MAL
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC9S12XET256MAL
Manufacturer:
FREESCALE
Quantity:
20 000
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Chapter 13 Analog-to-Digital Converter (ADC12B16CV1)
Only analog input signals within the potential range of V
in a non-railed digital output code.
13.4.2
This subsection explains some of the digital features in more detail. See
Descriptions”
13.4.2.1
The external trigger feature allows the user to synchronize ATD conversions to the external environment
events rather than relying on software to signal the ATD module when ATD conversions are to take place.
The external trigger signal (out of reset ATD channel 15, configurable in ATDCTL1) is programmable to
be edge or level sensitive with polarity control.
combinations of control bits and their effect on the external trigger function.
During a conversion, if additional active edges are detected the overrun error flag ETORF is set.
In either level or edge triggered modes, the first conversion begins when the trigger is received.
Once ETRIGE is enabled, conversions cannot be started by a write to ATDCTL5, but rather must be
triggered externally.
If the level mode is active and the external trigger both de-asserts and re-asserts itself during a conversion
sequence, this does not constitute an overrun. Therefore, the flag is not set. If the trigger is left asserted in
level mode while a sequence is completing, another sequence will be triggered immediately.
526
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Digital Sub-Block
External Trigger Input
ETRIGLE
for all details.
X
X
0
0
1
1
ETRIGP
X
X
0
1
0
1
MC9S12XE-Family Reference Manual , Rev. 1.23
Table 13-23. External Trigger Control Bits
ETRIGE
0
0
1
1
1
1
Table 13-23
SCAN
0
1
X
X
X
X
RL
Ignores external trigger. Performs one
conversion sequence and stops.
Ignores external trigger. Performs
continuous conversion sequences.
Falling edge triggered. Performs one
conversion sequence per trigger.
Rising edge triggered. Performs one
conversion sequence per trigger.
Trigger active low. Performs continuous
conversions while trigger is active.
Trigger active high. Performs continuous
conversions while trigger is active.
to V
gives a brief description of the different
RH
(A/D reference potentials) will result
Description
Section 13.3.2, “Register
Freescale Semiconductor
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