MC9S12XDT256MAA Freescale Semiconductor, MC9S12XDT256MAA Datasheet - Page 399
MC9S12XDT256MAA
Manufacturer Part Number
MC9S12XDT256MAA
Description
IC MCU 256K FLASH 80-QFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12XD64CAA.pdf
(1348 pages)
Specifications of MC9S12XDT256MAA
Core Processor
HCS12X
Core Size
16-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
59
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)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-QFP
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
16KB
# I/os (max)
59
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/3.15V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Processor Series
S12XD
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
59
Number Of Timers
12
Operating Supply Voltage
0 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
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:
MC9S12XDT256MAA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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9.3.2.2
Read and write anytime
Freescale Semiconductor
IBC[7:0]
Reset
Field
7:0
W
R
IBC7
I Bus Clock Rate 7:0 — This field is used to prescale the clock for bit rate selection. The bit clock generator is
implemented as a prescale divider — IBC7:6, prescaled shift register — IBC5:3 select the prescaler divider and
IBC2-0 select the shift register tap point. The IBC bits are decoded to give the tap and prescale values as shown
in
IIC Frequency Divider Register (IBFD)
0
7
Table
9-3.
IBC5-3
(bin)
000
001
010
011
100
101
110
111
IBC6
= Unimplemented or Reserved
0
6
Figure 9-4. IIC Bus Frequency Divider Register (IBFD)
Table 9-3. I-Bus Tap and Prescale Values
scl2start
(clocks)
IBC2-0
(bin)
Table 9-2. IBFD Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
000
001
010
011
100
101
110
111
126
14
30
62
IBC5
2
2
2
6
0
5
IBC4
scl2stop
SCL Tap
(clocks)
(clocks)
0
4
129
10
12
15
17
33
65
5
6
7
8
9
7
7
9
9
Description
Chapter 9 Inter-Integrated Circuit (IICV2) Block Description
IBC3
0
3
SDA Tap
(clocks)
(clocks)
scl2tap
126
14
30
62
1
1
2
2
3
3
4
4
4
4
6
6
IBC2
0
2
(clocks)
tap2tap
128
16
32
64
1
2
4
8
IBC1
0
1
IBC0
0
0
399
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