MC68HC908SR12CB Freescale Semiconductor, MC68HC908SR12CB Datasheet - Page 125

• Manufacturer Part Number: MC68HC908SR12CB
• Description: IC MCU 12K FLASH 8MHZ 42-SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908SR12CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 29
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 42-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

8.4.9 CGM External Connections
8.5 I/O Signals
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
In its typical configuration, the CGM requires up to four external
components.
Figure 8-3
Care should be taken with PCB routing in order to minimize signal cross
talk and noise. (See
routing information, filter network and its effects on PLL performance.)
The following paragraphs describe the CGM I/O signals.
•
•
Note: Filter network in box can be replaced with a 0.47µF capacitor, but will degrade stability.
Bypass capacitor, C
Filter network
Clock Generator Module (CGM)
shows the external components for the PLL:
MCU
Figure 8-3. CGM External Connections
0.033 µF
8.9 Acquisition/Lock Time Specifications
10 kΩ
BYP
CGMXFC
0.01 µF
Clock Generator Module (CGM)
V
SSA
V
DDA
C
0.1 µF
BYP
V
DD
Data Sheet
I/O Signals
for
125