MC68HC908RF2CFA Freescale Semiconductor, MC68HC908RF2CFA Datasheet - Page 155

• Manufacturer Part Number: MC68HC908RF2CFA
• Description: IC MCU W/UHF TX 2K FLASH 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908RF2CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LVD, POR, PWM, RF Mod
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

12.10.2 Complete Application Schematic
MC68HC908RF2 — Rev. 4.0
MOTOROLA
A example of crystal reference is: Tokyo Denpa TTS-3B 13568.750 kHz, see
12-4.
Figure 12-7
MC68HC908RF2. OOK modulation is selected, f
Load capacitance
Motional capacitance
Static capacitance
Loss resistance
Carrier Frequency
Freescale Semiconductor, Inc.
For More Information On This Product,
(MHz)
434
868
gives a complete application schematic using the Motorola
Table 12-4. Recommended Crystal Characteristics
PLL Tuned UHF Transmitter Module
Go to: www.freescale.com
Table 12-5. Crystal Pulling Capacitor Value
versus Carrier Frequency Total Deviation
Parameter
(SMD Ceramic Package)
Carrier Frequency
Total Deviation
(kHz)
100
140
200
40
70
80
PLL Tuned UHF Transmitter Module
Carrier
= 433.92 MHz.
Value
6.7
20
40
2
Application Information
Capacitor Value
(pF)
6.8
6.8
18
10
18
10
Data Sheet
Unit
pF
pF
fF
W
Table
155