MC68HC705C8ACB

Manufacturer Part NumberMC68HC705C8ACB
ManufacturerFreescale Semiconductor
MC68HC705C8ACB datasheets

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Specifications of MC68HC705C8ACB

Cpu FamilyHC05Device Core Size8b
Frequency (max)2.1MHzInterface TypeSCI/SPI
Program Memory TypeEPROMProgram Memory Size8KB
Total Internal Ram Size304Byte# I/os (max)24
Number Of Timers - General Purpose1Operating Supply Voltage (typ)3.3/5V
Operating Supply Voltage (max)5.5VOperating Supply Voltage (min)3V
Instruction Set ArchitectureCISCOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingThrough Hole
Pin Count42Package TypeSPDIP
Lead Free Status / Rohs StatusNot Compliant  
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Freescale Semiconductor, Inc.
OR — Receiver Overrun Bit
This clearable, read-only bit is set if the SCDR is not read before the
receive shift register receives the next word. OR generates an
interrupt request if the RIE bit in SCCR2 is also set. The data in the
shift register is lost, but the data already in the SCDR is not affected.
Clear the OR bit by reading the SCSR with OR set and then reading
the SCDR. Reset clears the OR bit.
NF — Receiver Noise Flag Bit
This clearable, read-only bit is set when noise is detected in data
received in the SCI data register. Clear the NF bit by reading the
SCSR and then reading the SCDR. Reset clears the NF bit.
FE — Receiver Framing Error Bit
This clearable, read-only flag is set when a logic 0 is located where a
stop bit should be in the character shifted into the receive shift
register. If the received word causes both a framing error and an
overrun error, the OR bit is set and the FE bit is not set. Clear the FE
bit by reading the SCSR and then reading the SCDR. Reset clears the
FE bit.
MC68HC705C8A — Rev. 3
MOTOROLA
For More Information On This Product,
1 = Receiver shift register full and RDRF = 1
0 = No receiver overrun
1 = Noise detected in SCDR
0 = No noise detected in SCDR
1 = Framing error
0 = No framing error
Serial Communications Interface (SCI)
Go to: www.freescale.com
Serial Communications Interface (SCI)
SCI I/O Registers
Technical Data

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