MC9S12C128CPBE Freescale Semiconductor, MC9S12C128CPBE Datasheet - Page 559

• Manufacturer Part Number: MC9S12C128CPBE
• Description: IC MCU 128K FLASH 25MHZ 52-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12C128CPBE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Freescale Semiconductor
TRY TO DECREASE Tbus
Figure 19-24. PRDIV8 and FDIV Bits Determination Procedure
FDIV[5:0]=PRDCLK[MHz]*(5+Tbus[µs])-1
yes
ALL COMMANDS IMPOSSIBLE
FCLK=(PRDCLK)/(1+FDIV[5:0])
PRDCLK[MHz]*(5+Tbus[µs])
1/FCLK[MHz] + Tbus[µs] > 5
PRDCLK=oscillator_clock/8
MC9S12C-Family / MC9S12GC-Family
PRDIV8=0 (reset)
FCLK > 0.15MHz
oscillator_clock
FDIV[5:0] > 4?
Tbus < 1µs?
an integer?
PRDIV8=1
START
12.8MHz?
AND
?
yes
yes
yes
no
no
Rev 01.24
no
no
PRDCLK=oscillator_clock
no
yes
FDIV[5:0]=INT(PRDCLK[MHz]*(5+Tbus[µs]))
ALL COMMANDS IMPOSSIBLE
Chapter 19 64 Kbyte Flash Module (S12FTS64KV4)
END
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