MCHC908GR8CFAE Freescale Semiconductor, MCHC908GR8CFAE Datasheet - Page 108

• Manufacturer Part Number: MCHC908GR8CFAE
• Description: IC MCU FLSH 8BIT8MHZ 7.5K32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908GR8CFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 21
• Ram Memory Size: 384Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08G
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8.2 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Clock Generator Module (CGMC)
Technical Data
108
NOTE:
Exceeding the recommended maximum bus frequency or VCO
frequency can crash the MCU.
10. Verify the choice of P, R, N, E, and L by comparing f
11. Program the PLL registers accordingly:
8. Select a VCO linear range multiplier, L, where f
9. Calculate and verify the adequacy of the VCO programmed
Freescale Semiconductor, Inc.
For More Information On This Product,
this table:
center-of-range frequency, f
the midpoint between the minimum and maximum frequencies
attainable by the PLL.
For proper operation,
and f
application’s tolerance of f
possible to f
a. In the PRE bits of the PLL control register (PCTL), program
b. In the VPR bits of the PLL control register (PCTL), program
NOTE: Do not program E to a value of 3.
Clock Generator Module (CGMC)
the binary equivalent of P.
the binary equivalent of E.
VCLKDES
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19,660,800
9,830,400
VCLK
. For proper operation, f
0 < f
Frequency Range
.
VCLK
L
f
VRS
=
f
f
VCLK
f
VRS
VCLK
< 9,830,400
round
–
< 19,660,800
f
< 39,321,600
=
VCLK
VCLKDES
VRS
L 2
--------------------------
2
E
f
VCLK
. The center-of-range frequency is
E
f
--------------------------
f
NOM
NOM
f
, and f
NOM
2
VCLK
2
E
VRS
MC68HC908GR8 — Rev 4.0
must be within the
must be as close as
NOM
E
0
1
2
= 38.4 kHz
VCLK
MOTOROLA
to f
VRS