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STC89LE53RC 数据表(PDF) 5 Page - STCmicro Technology Co,.Ltd

部件名 STC89LE53RC
功能描述  Enhanced 80C51 Central Processing Unit ,6T or 12T per machine cycle
PDF  165 Pages
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制造商  STC [STCmicro Technology Co,.Ltd]
网页  http://www.stcmicro.com/
标志 STC - STCmicro Technology Co,.Ltd

STC89LE53RC 数据表(HTML) 5 Page - STCmicro Technology Co,.Ltd

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1.2 Block diagram
The CPU kernel of STC89xx series are fully compatible to the standard 8051 microcontroller, maintains all
instruction mnemonics and binary compatibility. STC89xx series can execute the fastest instructions per 6 clock
cycles or 12 clock cycles(as the same as the standard 80C51) . Improvement of individual programs depends on
the actual instructions used.
STC89xx Block Diagram
256 Byte
RAM
RAM ADDR
Register
FLASH
64K
Program
Counter
B Register
ACC
TMP2
TMP1
Stack
Poniter
ALU
PSW
Port 0,1,2,3,4
Latch
WDT
Control
Unit
XTAL2
XTAL1
RESET
AUX-RAM
1024 Byte
ISP/IAP
Address
Generator
Timer 0/1
UART
Port 0,1,2,3,4
Driver
P0, P1,P2,P3,P4
PSEN
Timer 2
ALE
EA
5



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