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IMP16C554 PDF预览

IMP16C554

更新时间: 2022-11-27 00:24:59
品牌 Logo 应用领域
IMP 先进先出芯片
页数 文件大小 规格书
20页 493K
描述
Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs

IMP16C554 数据手册

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IMP16C554  
Data Communications  
Quad Universal Asynchronous  
Receiver/Transmitter (UART)  
with FIFO's  
Description  
The IMP16C554 is a universal asynchronous receiver and  
transmitter with 16 byte transmit and receive FIFO. A  
Key Features  
programmable baud rate generator is provided to select  
transmit and receive clock rates from 50Hz to 1.5MHz.  
The IMP16C554 is an improved version of the IMP16C550  
16 byte receive FIFO with error flags  
UART with higher operating speed and lower access time. ꢀ  
The IMP16C554 on board status registers provides the  
Modem control signal (CTS*, RTS*, DSR*, DTR*,  
RI* ,CD*)  
error conditions, type and status of the transfer operation ꢀ  
being performed. Included is complete MODEM control ꢀ  
capability, and a processor interrupt system that may be ꢀ  
software tailored to the user’s requirements. The ꢀ  
Programmable character lengths(5,6,7,8)  
Even, odd, or no parity bit generation and detection  
Status report register  
Independent transmit and receive control  
TLL compatible inputs. outputs  
IMP16C554 provides internal loop-back capability for on  
board diagnostic testing.  
Software compatible with Ei8250, 1Ei16C550  
460.8kHz transmit/receive operation with 7.372  
MHz crystal or external clock source  
The IMP16C554 is fabricated in an advanced 1.2u CMOS  
process to achieve low drain power and high speed  
requirements.  
Pin Configuration  
DSRD•  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
DSRA•  
CTSA•  
DTRA•  
VCC  
RTSA•  
INTA  
CSA•  
TXA  
IOW•  
TXB  
CSB•  
INTB  
RTSB•  
GND  
DTRB  
CTSD•  
1
2
3
4
5
6
7
8
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
DSRD•  
CTSD•  
DTRD•  
GND  
RTSD•  
INTD  
CSD•  
TXD  
IOR•  
TXC  
CSC•  
INTC  
RTSC•  
VCC  
DTRC•  
CTSC•  
DSRC•  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
DSRA•  
CTSA•  
DTRA•  
VCC  
RTSA•  
INTA  
CSA•  
TXA  
IOW•  
TXB  
CSB•  
INTB  
RTSB•  
GND  
DTRB  
CTSD•  
DSRB•  
CTSD•  
DTRD•  
GND  
RTSD•  
INTD  
CSD•  
TXD  
IOR•  
TXC  
CSC•  
INTC  
RTSC•  
VCC  
DTRC•  
CTSC•  
16C554  
IMP  
IMP 16C554  
9
10  
11  
12  
13  
14  
15  
16  
68-PIN PLCC  
64-PIN QFP  
1
408-432-9100/www.impweb.com  
© 2002 IMP, Inc.  

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