MCHC908JW32FC Freescale Semiconductor, MCHC908JW32FC Datasheet - Page 65
![IC MCU 32K FLASH 8MHZ 48-QFN](/photos/12/17/121792/mchc908jw32fc_sml.jpg)
MCHC908JW32FC
Manufacturer Part Number
MCHC908JW32FC
Description
IC MCU 32K FLASH 8MHZ 48-QFN
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.RD3152MMA7260Q.pdf
(232 pages)
Specifications of MCHC908JW32FC
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, USB
Peripherals
LED, LVD, POR, PWM
Number Of I /o
29
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
48-QFN
Controller Family/series
HC08
No. Of I/o's
29
Ram Memory Size
1KB
Cpu Speed
8MHz
No. Of Timers
1
Embedded Interface Type
SPI, USB
Rohs Compliant
Yes
Processor Series
HC08JW
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, USB
Number Of Programmable I/os
29
Number Of Timers
2
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
- Current page: 65 of 232
- Download datasheet (3Mb)
5.3.9 CGM External Connections
In its typical configuration, the CGMC requires up to nine 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 5-3
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 5-3
Care should be taken with PCB routing in order to minimize signal cross talk and noise. (See
Acquisition/Lock Time Specifications
performance.)
Freescale Semiconductor
•
•
•
•
•
•
•
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 0.47µF capacitor, but will degrade stability.
MCU
1
(FROM CONFIG)
OSC_XCLKEN
OSC1
S
C1
SIMOSCEN FROM SIM
) is included in the diagram to follow strict Pierce oscillator guidelines. Refer to the
S
(4-MHZ)
1
2
X1
RB
BYP
B
(can also be a fixed capacitor)
Figure 5-3. CGM External Connections
MC68HC908JW32 Data Sheet, Rev. 6
OSC2
RS
for routing information, filter network and its effects on PLL
C2
CGMXCLK
2n2 F
2kΩ
CGMXFC
100 pF
V
SSPLL
Functional Description
V
DDPLL
CBYP
0.1 µF
Figure
5.8
5-3.
65
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