MC9S08AC16MBE Freescale Semiconductor, MC9S08AC16MBE Datasheet - Page 130

• Manufacturer Part Number: MC9S08AC16MBE
• Description: IC MCU 8BIT 16K FLASH 42SDIP
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08AC16MBE

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Processor Series: S08AC
• Core: HCS08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWS08
• Development Tools By Supplier: DEMO9S08AC60E, DEMOACEX, DEMOACKIT, DCF51AC256, DC9S08AC128, DC9S08AC16, DC9S08AC60, DEMO51AC256KIT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Internal Clock Generator (S08ICGV4)
8.1.2
This is a high-level description only. Detailed descriptions of operating modes are contained in
Section 8.4, “Functional
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Digitally-controlled oscillator (DCO) preserves previous frequency settings, allowing fast
frequency lock when recovering from stop3 mode
DCO will maintain operating frequency during a loss or removal of reference clock
Post-FLL divider selects 1 of 8 bus rate divisors (/1 through /128)
Separate self-clocked source for real-time interrupt
Trimmable internal clock source supports SCI communications without additional external
components
Automatic FLL engagement after lock is acquired
External oscillator selectable for low power or high gain
Mode 1 — Off
The output clock, ICGOUT, is static. This mode may be entered when the STOP instruction is
executed.
Mode 2 — Self-clocked (SCM)
Default mode of operation that is entered immediately after reset. The ICG’s FLL is open loop and
the digitally controlled oscillator (DCO) is free running at a frequency set by the filter bits.
In this mode, the ICG’s FLL is used to create frequencies that are programmable multiples of the
internal reference clock.
— FLL engaged internal unlocked is a transition state that occurs while the FLL is attempting to
— FLL engaged internal locked is a state that occurs when the FLL detects that the DCO is locked
Mode 4 — FLL bypassed external (FBE)
In this mode, the ICG is configured to bypass the FLL and use an external clock as the clock source.
Mode 5 — FLL engaged external (FEE)
The ICG’s FLL is used to generate frequencies that are programmable multiples of the external
clock reference.
— FLL engaged external unlocked is a transition state that occurs while the FLL is attempting to
— FLL engaged external locked is a state which occurs when the FLL detects that the DCO is
Mode 3 — FLL engaged internal (FEI)
Modes of Operation
lock. The FLL DCO frequency is off target and the FLL is adjusting the DCO to match the
target frequency.
to a multiple of the internal reference.
lock. The FLL DCO frequency is off target and the FLL is adjusting the DCO to match the
target frequency.
locked to a multiple of the external reference.
Description.”
MC9S08AC16 Series Data Sheet, Rev. 8
Freescale Semiconductor