MC9S12E256MFUE Freescale Semiconductor, MC9S12E256MFUE Datasheet - Page 71

• Manufacturer Part Number: MC9S12E256MFUE
• Description: IC MCU 256K FLASH 25MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12E256MFUE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 2.75 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-QFP
• Processor Series: S12E
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C/SCI/SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 12
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16-ch x 10-bit
• On-chip Dac: 2-ch x 8-bit
• Controller Family/series: HCS12/S12X
• No. Of I/o's: 60
• Ram Memory Size: 16KB
• Cpu Speed: 25MHz
• No. Of Timers: 3
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• For Use With: M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.5
The Clock and Reset Generator provides the internal clock signals for the core and all peripheral modules.
Figure 1-7
Reset Generator (CRGV4)”
Freescale Semiconductor
System Clock Description
shows the clock connections from the CRG to all modules. Consult
EXTAL
XTAL
PE7 = XCLKS
OSC
for details on clock generation.
1
0
CRG
Table 1-6. Clock Selection Based on PE7
MC9S12E256 Data Sheet, Rev. 1.08
Figure 1-7. Clock Connections
Colpitts Oscillator selected
Pierce Oscillator/external clock selected
Bus Clock
Oscillator Clock
Description
Chapter 1 MC9S12E256 Device Overview (MC9S12E256DGV1)
Core Clock
TIM0, TIM1, TIM2
SCI0, SCI1, SCI2
HCS12 CORE
MEBI
BDM
INT
VREG
Flash
PWM
DAC
PMF
RAM
ATD
PIM
SPI
IIC
Chapter 4, “Clocks and
MMC
DBG
CPU
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