MC908GR60ACFAE Freescale Semiconductor, MC908GR60ACFAE Datasheet - Page 75
![IC MCU 60K FLASH 8MHZ 48-LQFP](/photos/12/19/121920/mc908gr60acfae_sml.jpg)
MC908GR60ACFAE
Manufacturer Part Number
MC908GR60ACFAE
Description
IC MCU 60K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR60ACFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Controller Family/series
HC08
No. Of I/o's
37
Ram Memory Size
2KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
ESCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
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
10 bit, 24 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR60ACFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908GR60ACFAE
Manufacturer:
FREESCALE
Quantity:
20 000
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The following conditions apply when in manual mode:
4.3.6 Programming the PLL
Use the following procedure to program the PLL. For reference, the variables used and their meaning are
shown in
Freescale Semiconductor
1. Choose the desired bus frequency, f
2. Calculate the desired VCO frequency (four times the desired bus frequency).
3. Choose a practical PLL (crystal) reference frequency, f
•
•
•
•
•
ACQ is a writable control bit that controls the mode of the filter. Before turning on the PLL in manual
mode, the ACQ bit must be clear.
Before entering tracking mode (ACQ = 1), software must wait a given time, t
Acquisition/Lock Time
control register (PCTL).
Software must wait a given time, t
clock source to CGMOUT (BCS = 1).
The LOCK bit is disabled.
CPU interrupts from the CGM are disabled.
MHz.
Frequency errors to the PLL are corrected at a rate of f
For stability and lock time reduction, this rate must be as fast as possible. The VCO frequency must
be an integer multiple of this rate. The relationship between the VCO frequency, f
reference frequency, f
N, the range multiplier, must be an integer.
Table
The round function in the following equations means that the real number
should be rounded to the nearest integer number.
4-1.
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
f
Variable
f
VCLKDES
BUSDES
f
f
f
RCLK
f
f
VCLK
NOM
BUS
VRS
RCLK
Specifications.), after turning on the PLL by setting PLLON in the PLL
, is:
Table 4-1. Variable Definitions
Desired bus clock frequency
Desired VCO clock frequency
Chosen reference crystal frequency
Calculated VCO clock frequency
Calculated bus clock frequency
Nominal VCO center frequency
Programmed VCO center frequency
AL
f
VCLKDES
, after entering tracking mode before selecting the PLL as the
f
BUSDES
VCLK
= (N) (f
NOTE
= 4 x f
.
Definition
RCLK
BUSDES
)
RCLK
RCLK
. Typically, the reference crystal is 1–8
.
ACQ
Functional Description
(See
VCLK
4.8
, and the
75
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