MC68HC908LD60IFU Freescale Semiconductor, MC68HC908LD60IFU Datasheet - Page 90

• Manufacturer Part Number: MC68HC908LD60IFU
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908LD60IFU

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 6MHz
• Program Memory Type: Flash
• Program Memory Size: 60KB
• Total Internal Ram Size: 1KB
• # I/os (max): 39
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 6-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: PQFP
• Lead Free Status / Rohs Status: Compliant

Oscillator (OSC)
7.3 Oscillator External Connections
Technical Data
90
In its typical configuration, the oscillator requires five external
components. The crystal oscillator is normally connected in a Pierce
oscillator configuration, as shown in
the logical representation of the internal components and may not
represent actual circuitry. The oscillator configuration uses five
components:
The series resistor (R
oscillator guidelines and may not be required for all ranges of operation,
especially with high frequency crystals. Refer to the crystal
manufacturer’s data for more information.
•
•
•
•
•
From
SIM
SIMOSCEN
MCU
Crystal, X
Fixed capacitor, C
Tuning capacitor, C
Feedback resistor, R
Series resistor, R
Figure 7-1. Oscillator External Connections
1
OSC1
Oscillator (OSC)
(nominally 24MHz)
C
1
24MHz
S
R
X
) is included in the diagram to follow strict Pierce
B
1
S
1
(not required for 24MHz crystal)
2
B
OSCXCLK
(can also be a fixed capacitor)
OSC2
R
C
S
*R
2
*
To SIM
higher-frequency crystals. Refer to manufacturer’s data.
S
can be zero (shorted) when used with
Figure
7-1. This figure shows only
MC68HC908LD60
Freescale Semiconductor
÷ 2
OSCOUT
—
To SIM
Rev. 1.1