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ST16C550_05 PDF预览

ST16C550_05

更新时间: 2024-02-20 06:36:14
品牌 Logo 应用领域
艾科嘉 - EXAR 先进先出芯片
页数 文件大小 规格书
35页 241K
描述
UART WITH 16-BYTE FIFO’s

ST16C550_05 数据手册

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ST16C550  
UART WITH 16-BYTE FIFO’s  
April 2005  
GENERAL DESCRIPTION  
PLCC Package  
The ST16C550 (550) is a universal asynchronous re-  
ceiverandtransmitterwith16bytetransmitandreceive  
FIFO. It operates at 2.97 to 5.5 volts. A programmable  
baud rate generator can select transmit and receive  
clock rates from 50 bps to 1.5 Mbps.  
7
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
D5  
D6  
RESET  
-OP1  
-DTR  
-RTS  
-OP2  
N.C.  
INT  
TheST16C550isanimprovedversionofthe NS16C550  
UART with higher operating speed and lower access  
time.TheST16C550onboardstatusregisters provides  
the error conditions, type and status of the transfer  
operation being performed. Included is complete MO-  
DEM control capability, and a processor interrupt  
system that may be software tailored to the user’s  
requirements. The ST16C550 provides internal loop-  
back capability for on board diagnostic testing.  
TheST16C550isavailablein40pinPDIP,44pinPLCC,  
and 48 pin TQFP packages. It is fabricated in an  
advanced CMOS process to achieve low drain power  
and high speed requirements.  
8
9
D7  
10  
11  
12  
13  
14  
15  
16  
17  
RCLK  
RX  
N.C.  
ST16C550CJ44  
TX  
CS0  
-RXRDY  
A0  
CS1  
-CS2  
-BAUDOUT  
A1  
A2  
FEATURES  
PintopinandfunctionallycompatibletotheIndustry  
Standard16C550  
2.97 to 5.5 volt operation  
24MHz clock operation at 5V  
16MHz clock operation at 3.3V  
16 byte transmit FIFO  
Standardmodeminterface  
CompatiblewithST16C450  
Low operating current ( 1.2mA typ.)  
16 byte receive FIFO with error flags  
Fullduplexoperation  
Transmitandreceivecontrol  
FourselectablereceiveFIFOinterrupttriggerlevels  
ORDERING INFORMATION  
Part number  
Package  
Operating temperature  
Device Status  
ST16C550CP40  
ST16C550CJ44  
ST16C550CQ48  
ST16C550IP40  
ST16C550IJ44  
ST16C550IQ48  
40-Lead PDIP  
44-Lead PLCC 0° C to + 70° C  
48-Lead TQFP 0° C to + 70° C  
40-Lead PDIP  
44-Lead PLCC -40° C to + 85° C  
48-Lead TQFP -40° C to + 85° C  
0° C to + 70° C  
Active. See the ST16C550CQ48 for new designs.  
Active  
Active  
Active. See the ST16C550IQ48 for new designs.  
Active  
Active  
-40° C to + 85° C  
Rev.5.01  
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017  

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