MCHC908GR8CFAE Freescale Semiconductor, MCHC908GR8CFAE Datasheet - Page 107

• 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

MC68HC908GR8 — Rev 4.0
MOTOROLA
4. Select a VCO frequency multiplier, N.
5. If N is < N
6. Calculate and verify the adequacy of the VCO and bus
7. Select the VCO’s power-of-two range multiplier E, according to
Freescale Semiconductor, Inc.
For More Information On This Product,
allows. See
divider, R = 1. After choosing N and P, the actual bus frequency
can be determined using equation in 2 above.
When the tolerance on the bus frequency is tight, choose f
an integer divisor of f
requirement, use the following equation to solve for R with
practical choices of f
lowest R.
Reduce N/R to the lowest possible R.
Then recalculate N:
frequencies f
Clock Generator Module (CGMC)
R
Go to: www.freescale.com
=
round R
max
Electrical
VCLK
, use P = 0. If N > N
N max
N max
N max
N
MAX
f
N
VCLK
Current N Value
and f
=
0
=
RCLK
BUSDES
round
<
<
2
4
f
Specifications. Choose the reference
round
BUS
N
N
<
<
=
BUS
f
------------------------- -
N
N
VCLKDES
, and choose the f
N max
2
f
N max
=
RCLK
P
R
------------------------------------ -
.
N max
N max
, and R = 1. If f
R f
------------------------------------ -
f
f
N R
VCLK
RCLK
f
f
VCLKDES
RCLK
VCLKDES
max
2
–
4
8
integer
4
2
, choose P using this table:
f
Clock Generator Module (CGMC)
RCLK
P
RCLK
f
------------------------- -
RCLK
VCLKDES
P
0
1
2
3
f
RCLK
Functional Description
cannot meet this
that gives the
Technical Data
RCLK
107
to