MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 546

IC MCU 256K FLASH 80-QFP

MC9S12XDT256CAA

Manufacturer Part Number
MC9S12XDT256CAA
Description
IC MCU 256K FLASH 80-QFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet

Specifications of MC9S12XDT256CAA

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 ~ 85°C
Package / Case
80-QFP
Processor Series
S12XD
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
59
Number Of Timers
12
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Chapter 13 Periodic Interrupt Timer (S12PIT24B4CV1)
13.3.0.2
Read: Anytime
Write: Anytime; writes to the reserved bits have no effect
13.3.0.3
Read: Anytime
Write: Anytime; writes to the reserved bits have no effect
546
PFLT[3:0]
PCE[3:0]
Reset
Reset
Field
Field
3:0
3:0
W
W
R
R
PIT Force Load Bits for Timer 3-0 — These bits have only an effect if the corresponding timer channel (PCE
set) is enabled and if the PIT module is enabled (PITE set). Writing a one into a PFLT bit loads the corresponding
16-bit timer load register into the 16-bit timer down-counter. Writing a zero has no effect. Reading these bits will
always return zero.
PIT Enable Bits for Timer Channel 3:0 — These bits enable the PIT channels 3-0. If PCE is cleared, the PIT
channel is disabled and the corresponding flag bit in the PITTF register is cleared. When PCE is set, and if the
PIT module is enabled (PITE = 1) the 16-bit timer counter is loaded with the start count value and starts
down-counting.
0 The corresponding PIT channel is disabled.
1 The corresponding PIT channel is enabled.
PIT Force Load Timer Register (PITFLT)
PIT Channel Enable Register (PITCE)
0
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
Figure 13-4. PIT Force Load Timer Register (PITFLT)
Figure 13-5. PIT Channel Enable Register (PITCE)
Table 13-2. PITFLT Field Descriptions
Table 13-3. PITCE Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
0
0
0
0
5
5
0
0
0
0
4
4
Description
Description
PFLT3
PCE3
0
0
0
3
3
PFLT2
PCE2
0
0
0
2
2
Freescale Semiconductor
PFLT1
PCE1
0
0
0
1
1
PFLT0
PCE0
0
0
0
0
0

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