LC872H08A/06A/04A

No.A1540-22/28

UART (Full Duplex) Operating Conditions

at Ta = -40

°C to +85°C, VSS1 = VSS2 = 0V

Specification

Parameter

Symbol

Pin/Remarks

Conditions

VDD[V]

min

typ

max

unit

Transfer rate

UBR

UTX(P20)

URX(P21)

1.8 to 5.5

16/3

8192/3

tCYC

Data length:

7/8/9 bits (LSB first)

Stop bits:

1 bit (2-bit in continuous data transmission)

Parity bits:

None

Example of Continuous 8-bit Data Transmission Mode Processing (First Transmit Data=55H)

Example of Continuous 8-bit Data Reception Mode Processing (First Receive Data=55H)

Transmit data (LSB first)

Start of

transmission

End of

transmission

UBR

Start bit

Stop bit

Receive data (LSB first)

UBR

Start of

reception

End of

reception

Stop bit

Start bit