MC908AP32CFAER Freescale Semiconductor, MC908AP32CFAER Datasheet - Page 87
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MC908AP32CFAER
Manufacturer Part Number
MC908AP32CFAER
Description
IC MCU 32K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AP8CFBE.pdf
(324 pages)
Specifications of MC908AP32CFAER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908AP32CFAER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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6.3.9 CGM External Connections
In its typical configuration, the CGM requires up to four external components.
Figure 6-3
Care should be taken with PCB routing in order to minimize signal cross talk and noise. (See
Acquisition/Lock Time Specifications
performance.)
6.4 I/O Signals
The following paragraphs describe the CGM I/O signals.
6.4.1 External Filter Capacitor Pin (CGMXFC)
The CGMXFC pin is required by the loop filter to filter out phase corrections. An external filter network is
connected to this pin. (See
6.4.2 PLL Analog Power Pin (V
V
potential as the V
Freescale Semiconductor
DDA
•
•
is a power pin used by the analog portions of the PLL. Connect the V
Bypass capacitor, C
Filter network
shows the external components for the PLL:
To prevent noise problems, the filter network should be placed as close to
the CGMXFC pin as possible, with minimum routing distances and no
routing of other signals across the network.
Route V
capacitors as close as possible to the package.
DD
Note: Filter network in box can be replaced with a 0.47µF capacitor, but will degrade stability.
pin.
DDA
BYP
Figure
carefully for maximum noise immunity and place bypass
MCU
Figure 6-3. CGM External Connections
0.22 µF
MC68HC908AP Family Data Sheet, Rev. 4
6-3.)
1 kΩ
DDA
for routing information, filter network and its effects on PLL
)
CGMXFC
NOTE
NOTE
10 nF
V
SSA
V
DDA
C
0.1 µF
BYP
DDA
V
DD
pin to the same voltage
6.8
I/O Signals
87
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