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P87LPC768FD 데이터시트(PDF) 49 Page - NXP Semiconductors

부품명 P87LPC768FD
상세설명  Low power, low price, low pin count 20 pin microcontroller with 4 kB OTP 8-bit A/D,and Pulse Width Modulator
PDF  64 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P87LPC768FD 데이터시트(HTML) 49 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary data
87LPC768
Low power, low price, low pin count (20 pin) microcontroller
with 4 kB OTP 8-bit A/D, Pulse Width Modulator
2001 Aug 06
47
START
BIT
SU01180
80C51 INTERNAL BUS
WRITE TO SBUF
SBUF
ZERO DETECTOR
TxD
P1.0 ALT OUTPUT
FUNCTION
TX CONTROL
S
TX CLOCK
START
Q
CL
D
SERIAL PORT INTERRUPT
SHIFT
SEND
LOAD
SBUF
TI
INPUT SHIFT REGISTER
START
RI
LOAD SBUF
SHIFT
RX
CLOCK
1FFH
RX CONTROL
SBUF
READ
SBUF
RxD
P1.1 ALT
INPUT
FUNCTION
80C51 INTERNAL BUS
DATA
TB8
÷16
÷16
÷2
PHASE 2 CLOCK
(1/2 fOSC)
1-TO-0
TRANSITION
DETECTOR
BIT DETECTOR
STOP BIT GEN.
SMOD1 = 0
SMOD1
= 1
TRANSMIT
START
BIT
STOP BIT
TX CLOCK
WRITE TO SBUF
SEND
DATA
SHIFT
TxD
TI
D0
D1
D5
D2
D6
D3
D4
D7
RECEIVE
RX CLOCK
SHIFT
RI
BIT DETECTOR SAMPLE TIMES
STOP BIT
RxD
D0
D1
D5
D2
D6
D3
D4
D7
÷ 16 RESET
TB8
STOP BIT GEN.
RB8
Figure 34. Serial Port Mode 2



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