MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 135
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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
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10.4 I/O Signals
The following paragraphs describe the CGM input/output (I/O) signals.
10.4.1 Crystal Amplifier Input Pin (OSC1)
The OSC1 pin is an input to the crystal oscillator amplifier.
10.4.2 Crystal Amplifier Output Pin (OSC2)
The OSC2 pin is the output of the crystal oscillator inverting amplifier.
10.4.3 External Filter Capacitor Pin (CGMXFC)
The CGMXFC pin is required by the loop filter to filter out phase corrections. A small external capacitor is
connected to this pin.
10.4.4 Analog Power Pin (V
V
potential as the V
10.4.5 Oscillator Enable Signal (SIMOSCEN)
The SIMOSCEN signal enables the oscillator and PLL.
10.4.6 Crystal Output Frequency Signal (CGMXCLK)
CGMXCLK is the crystal oscillator output signal. It runs at the full speed of the crystal (f
comes directly from the crystal oscillator circuit.
to OSC1 and OSC2 and may not represent the actual circuitry. The duty cycle of CGMXCLK is unknown
and may depend on the crystal and other external factors. Also, the frequency and amplitude of
CGMXCLK can be unstable at startup.
10.4.7 CGM Base Clock Output (CGMOUT)
CGMOUT is the clock output of the CGM. This signal is used to generate the MCU clocks. CGMOUT is
a 50% duty cycle clock running at twice the bus frequency. CGMOUT is software programmable to be
either the oscillator output, CGMXCLK, divided by two or the VCO clock, CGMVCLK, divided by two.
10.4.8 CGM CPU Interrupt (CGMINT)
CGMINT is the CPU interrupt signal generated by the PLL lock detector.
Freescale Semiconductor
DDA
is a power pin used by the analog portions of the PLL. Connect the V
To prevent noise problems, C
pin as possible with minimum routing distances and no routing of other
signals across the C
Route V
capacitors as close as possible to the package.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
DD
pin.
DDA
carefully for maximum noise immunity and place bypass
DDA
F
)
connection.
F
should be placed as close to the CGMXFC
Figure 10-3
NOTE
NOTE
shows only the logical relation of CGMXCLK
DDA
pin to the same voltage
CGMXCLK
I/O Signals
) and
135
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