參數(shù)資料
型號: XR88C681P/40-F
廠商: Exar Corporation
文件頁數(shù): 19/101頁
文件大?。?/td> 0K
描述: IC UART CMOS DUAL 40PDIP
標(biāo)準(zhǔn)包裝: 9
特點(diǎn): *
通道數(shù): 2,DUART
FIFO's: 1 字節(jié),3 字節(jié)
電源電壓: 4.75 V ~ 5.25 V
帶并行端口:
帶CMOS:
安裝類型: 通孔
封裝/外殼: 40-DIP(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 40-PDIP
包裝: 管件
其它名稱: 1016-1640
XR88C681P/40-F-ND
XR88C681
24
Rev. 2.11
C.6.1.1 8051 Microcontroller
The 8051 family of microcontrollers is manufactured by Intel and comes with a variety of amenities. Some of these
amenities include:
D
On chip serial port
D
Four 8 bit I/O port (P0 - P3)
D
Two 16 bit timers
D
4k bytes of ROM
D
128 bytes of RAM
Figure 3 presents a block diagram of the 8051 microcontroller, and Figure 4 presents the pin out of this device.
Interrupt
Control
Other
Registers
128 bytes
RAM
(8032/8052)
128 bytes
RAM
ROM
0K - 8031/8032
4K - 8051
8K - 8052
Timer 2
(8032/8052)
Timer 1
Timer 0
CPU
Bus Control
I/O Ports
Serial Port
-RXD
-TXD
P 0
P1
P2
P3
Serial Port
Timer 0
Timer 1
Timer 2 (8032/8052)
-INT0
-INT1
Oscillator
-T2EX
-T2
-T1
-T0
-EA
RST
ALE
-PSEN
Figure 3. Block Diagram of the 8051 Microcontroller
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