MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 137

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

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: -

MC68HC705C8A — Rev. 3
MOTOROLA
SCR2–SCR0 — SCI Baud Rate Select Bits
Table 10-3
frequencies of 2 MHz, 4 MHz, and 4.194304 MHz.
Freescale Semiconductor, Inc.
For More Information On This Product,
These read/write bits select the SCI baud rate, as shown in
SCR[2:1:0]
Table
Serial Communications Interface (SCI)
000
001
010
100
101
011
110
111
shows all possible SCI baud rates derived from crystal
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10-2. Reset has no effect on the SCR2–SCR0 bits.
Table 10-2. Baud Rate Selection
SCI Baud Rate (Baud)
Prescaled clock
Prescaled clock
Prescaled clock
Prescaled clock
Prescaled clock
Prescaled clock
Prescaled clock
Prescaled clock
Serial Communications Interface (SCI)
128
16
32
64
1
2
4
8
SCI I/O Registers
Technical Data
137