MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 31

IC MCU 4MHZ 8K OTP 44-PLCC

MC68HC705C8ACFN

Manufacturer Part Number
MC68HC705C8ACFN
Description
IC MCU 4MHZ 8K OTP 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705C8ACFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-

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1.7.3.2 Ceramic Resonator
MC68HC705C8A — Rev. 3
MOTOROLA
NOTE:
To reduce cost, use a ceramic
resonator instead of a crystal. Use the
circuit shown in
ceramic resonator or the circuit shown
in
resonator, and follow the resonator
manufacturer’s recommendations.
The external component values
required for maximum stability and
reliable starting depend upon the
resonator parameters. The load
capacitance values used in the oscillator circuit design should include all
stray layout capacitances. To minimize output distortion, mount the
resonator and capacitors as close as possible to the pins.
The bus frequency (f
(f
period.
OSC
Figure 1-10
Freescale Semiconductor, Inc.
For More Information On This Product,
), while the processor clock cycle (t
Go to: www.freescale.com
for a 3-pin ceramic
General Description
Figure 1-9
OP
) is one-half the external or crystal frequency
OSC1
Ceramic Resonator
Figure 1-10. 3-Pin
for a 2-pin
Connections
RESONATOR
CERAMIC
MCU
CYC
Figure 1-9. 2-Pin Ceramic
OSC2
Resonator Connections
.
OSC1
C
) is two times the f
RESONATOR
CERAMIC
MCU
R
General Description
Technical Data
Pin Functions
OSC2
OSC
C
31

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