MC68HC711E9VFN2 Freescale Semiconductor, MC68HC711E9VFN2 Datasheet - Page 35

• Manufacturer Part Number: MC68HC711E9VFN2
• Description: IC MCU 12K OTP 2MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711E9VFN2

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 38
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: OTP
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2.5 Crystal Driver and External Clock Input (XTAL and EXTAL)
M68HC11E Family — Rev. 3.2
MOTOROLA
CAUTION:
These two pins provide the interface for either a crystal or a CMOS-
compatible clock to control the internal clock generator circuitry. The
frequency applied to these pins is four times higher than the desired
E-clock rate.
The XTAL pin must be left unterminated when an external CMOS-
compatible clock input is connected to the EXTAL pin. The XTAL output
is normally intended to drive only a crystal.
In all cases, use caution around the oscillator pins. Load capacitances
shown in the oscillator circuit are specified by the crystal manufacturer
and should include all stray layout capacitances.
Refer to
Figure 2-8
Figure 2-9. External Oscillator Connections
MCU
Figure 2-8. Common Parallel Resonant
MCU
EXTAL
Pin Descriptions
XTAL
EXTAL
XTAL
and
Crystal Driver and External Clock Input (XTAL and EXTAL)
Figure
Crystal Connections
NC
2-9.
10 M
EXTERNAL OSCILLATOR
CMOS-COMPATIBLE
CRYSTAL
4 x E
4 x E
C
C
L
L
Pin Descriptions
Technical Data
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