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STC89C53RC Datasheet(PDF) 113 Page - STCmicro Technology Co,.Ltd

Part # STC89C53RC
Description  Enhanced 80C51 Central Processing Unit ,6T or 12T per machine cycle
PDF  165 Pages
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Manufacturer  STC [STCmicro Technology Co,.Ltd]
Direct Link  http://www.stcmicro.com/
Logo STC - STCmicro Technology Co,.Ltd

STC89C53RC Datasheet(HTML) 113 Page - STCmicro Technology Co,.Ltd

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STC MCU INTERNAL BUS
SBUF
ZERO DETECTOR
TX CONTROL
SHIFT
SEND
START
TX CLOCK
TI
D S Q
CL
RX CONTROL SHIFT
RECEIVE
START
RX CLOCK
RI
INPUT SHIFT REG
.
SBUF
STC MCU INTERNAL BUS
WRITE
TO
SBUF
SHIFT
RXD/P3.0
OUTPUT FUNCTION
11111110
SHIFT
CLOCK
TXD/P3.1
OUTPUT FUNCTION
SHIFT
RXD/P3.0
INPUT FUNCTION
LOAD
SBUF
READ
SBUF
SERIAL
PORT
INTERRUPT
REN
RI
WRITE TO SBUF
SEND
SHIFT
D1
D0
D2
D3
D4
D5
D6
D7
RXD(DATA OUT)
TXD(SHIFT CLOCK)
TI
WRITE TO SCON(CLEAR RI)
RI
RECEIVE
SHIFT
TXD(SHIFT CLOCK)
RXD(DATA IN)
D0
D1
D2
D3
D4
D5
D6
D7
TRANSMIT
RECEIVE
Serial Port Mode 0
SYSclk/12
113



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