MC68908GZ8MFAE Freescale Semiconductor, MC68908GZ8MFAE Datasheet - Page 66
![IC MCU 8BIT 8K FLASH 48-LQFP](/photos/37/62/376278/tqfp-48_sml.jpg)
MC68908GZ8MFAE
Manufacturer Part Number
MC68908GZ8MFAE
Description
IC MCU 8BIT 8K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68908GZ8CFJER.pdf
(314 pages)
Specifications of MC68908GZ8MFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
M689xx
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, SCI, CAN
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
37
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908GZ60E, M68EML08GZE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 66 of 314
- Download datasheet (5Mb)
Clock Generator Module (CGM)
4.3.9 CGM External Connections
In its typical configuration, the CGM requires external components. Five of these are for the crystal
oscillator and two or four are for the PLL.
The crystal oscillator is normally connected in a Pierce oscillator configuration, as shown in
Figure 4-2
circuitry. The oscillator configuration uses five components:
The series resistor (R
crystal manufacturer’s data for more information regarding values for C1 and C2.
Figure 4-2
Routing should be done with great care to minimize signal cross talk and noise.
66
•
•
•
•
•
•
•
Crystal, X
Fixed capacitor, C
Tuning capacitor, C
Feedback resistor, R
Series resistor, R
Bypass capacitor, C
Filter network
shows only the logical representation of the internal components and may not represent actual
also shows the external components for the PLL:
Note: Filter network in box can be replaced with a single capacitor, but will degrade stability.
1
(FROM CONFIG)
OSCSTOPENB
OSC1
C
S
SIMOSCEN
1
) is included in the diagram to follow strict Pierce oscillator guidelines. Refer to the
S
1
X1
2
RB
BYP
B
(can also be a fixed capacitor)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Figure 4-2. CGM External Connections
OSC2
RS
C
2
CGMXCLK
3 Component Filter
C
R
F1
F1
CGMXFC
C
F2
V
SSA
Freescale Semiconductor
V
CBYP
0.1 μF
DDA
V
DD
Figure
4-2.
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