MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 142
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MC908AZ60ACFU
Manufacturer Part Number
MC908AZ60ACFU
Description
IC MCU FLASH 8.4MHZ 60K 64QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AZ60ACFU
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908AZ60ACFU
Manufacturer:
MOTOROLA
Quantity:
84
Company:
Part Number:
MC908AZ60ACFU
Manufacturer:
FREESCAL
Quantity:
2 309
Company:
Part Number:
MC908AZ60ACFU
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908AZ60ACFU
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
Company:
Part Number:
MC908AZ60ACFU1L87J
Manufacturer:
MOT
Quantity:
143
Company:
Part Number:
MC908AZ60ACFU3K85K
Manufacturer:
FUJI
Quantity:
1 078
Company:
Part Number:
MC908AZ60ACFUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908AZ60ACFUE
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC908AZ60ACFUE1L87J
Manufacturer:
TEMIC
Quantity:
350
Company:
Part Number:
MC908AZ60ACFUER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 142 of 414
- Download datasheet (5Mb)
Clock Generator Module (CGM)
Temperature and processing also can affect acquisition time because the electrical characteristics of the
PLL change. The part operates as specified as long as these influences stay within the specified limits.
External factors, however, can cause drastic changes in the operation of the PLL. These factors include
noise injected into the PLL through the filter capacitor, filter capacitor leakage, stray impedances on the
circuit board, and even humidity or circuit board contamination.
10.9.3 Choosing a Filter Capacitor
As described in
to the stability and reaction time of the PLL. The PLL is also dependent on reference frequency and supply
voltage. The value of the capacitor must, therefore, be chosen with supply potential and reference
frequency in mind. For proper operation, the external filter capacitor must be chosen according to this
equation:
For acceptable values of C
the voltage potential at which the MCU is operating. If the power supply is variable, choose a value near
the middle of the range of possible supply values.
This equation does not always yield a commonly available capacitor size, so round to the nearest
available size. If the value is between two different sizes, choose the higher value for better stability.
Choosing the lower size may seem attractive for acquisition time improvement, but the PLL may become
unstable. Also, always choose a capacitor with a tight tolerance (±20% or better) and low dissipation.
10.9.4 Reaction Time Calculation
The actual acquisition and lock times can be calculated using the equations below. These equations yield
nominal values under the following conditions:
The K factor in the equations is derived from internal PLL parameters. K
is configured in acquisition mode, and K
(See
Note the inverse proportionality between the lock time and the reference frequency.
142
•
•
•
•
10.3.2.2 Acquisition and Tracking
Correct selection of filter capacitor, C
Room temperature operation
Negligible external leakage on CGMXFC
Negligible noise
10.9.2 Parametric Influences on Reaction
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
fact
, (see
Chapter 28 Electrical
t
acq
t
al
Modes).
trk
C
t
=
=
Lock
F
is the K factor when the PLL is configured in tracking mode.
F (see
⎛
⎝
=
⎛
⎝
------------------- -
f
------------------- -
f
CGMRDV
CGMRDV
C
=
V
V
fact
10.9.3 Choosing a Filter
DDA
DDA
t
ACQ
⎛
⎝
------------------ -
f
C G M R D V
V
⎞
⎠
⎞
⎠
+
DDA
⎛
⎝
Time, the external filter capacitor, C
Specifications). For the value of V
⎛
⎝
----------- -
K
------------ -
K
t
AL
TRK
4
ACQ
8
⎞
⎠
⎞
⎠
⎞
⎠
acq
Capacitor).
is the K factor when the PLL
Freescale Semiconductor
DDA
F
, is critical
, choose
Related parts for MC908AZ60ACFU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC14560BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12034AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MPIC2112P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14520BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12026AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC145152P2](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC68HC11A0P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MCM6726DWJ10](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC44355](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC13282AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14519BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14495P1](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![SN74LS796N](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC142100CP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC34014P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: