MC68HC705C8ACFNE Freescale Semiconductor, MC68HC705C8ACFNE Datasheet - Page 31

• Manufacturer Part Number: MC68HC705C8ACFNE
• Description: IC MCU 8K 2.1MHZ OTP 44-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MC68HC705C8ACFNE

• 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
• A/d Inputs: 4-Channel, 8-Bit
• Eeprom Memory: 0 Bytes
• Input Output: 24
• Interface: SCI/SPI
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 8K Bytes
• Timers: 3-16-bit
• Voltage, Range: 3-5.5 V
• Processor Series: HC705C
• Core: HC05
• Data Bus Width: 8 bit
• Data Ram Size: 304 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 2.1 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 1
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: RoHS Compliant part

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