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P-87C52 View Datasheet(PDF) - Philips Electronics

Part NameDescriptionManufacturer
P-87C52 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V/ low power/ high speed 30/33 MHz Philips
Philips Electronics Philips
P-87C52 Datasheet PDF : 57 Pages
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Philips Semiconductors
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
Preliminary data
80C3xX2; 80C5xX2;
87C5xX2
80C51 Internal Bus
Write
to
SBUF
DS Q
CL
SBUF
Zero Detector
RxD
P3.0 Alt
Output
Function
S6
REN
RI
Serial
Port
Interrupt
Start
TX Clock
TX Control
T1
Shift
Send
RX Clock
Start
R1
Receive
RX Control
Shift
1111111 0
LSB
MSB
Input Shift Register
Shift
Load
SBUF
Shift
Clock
RxD
P3.0 Alt
Input
Function
TxD
P3.1 Alt
Output
Function
LSB
SBUF
MSB
Read
SBUF
80C51 Internal Bus
S4 . . S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1 . . . . S6 S1
ALE
Send
Shift
Write to SBUF
S6P2
RxD (Data Out)
TxD (Shift Clock)
TI
D0
D1
D2
D3
S3P1
S6P1
D4
D5
D6
D7
Write to SCON (Clear RI)
RI
Receive
Shift
RxD (Data In)
TxD (Shift Clock)
D0
D1
D2
D3
D4
D5
D6
D7
S5P2
Figure 14. Serial Port Mode 0
Transmit
Receive
SU00539
2001 Sep 24
24
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