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ST16C580_05

Description
UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder
CategoryTopical application    Wireless rf/communication   
File Size219KB,39 Pages
ManufacturerExar [Exar Corporation]
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ST16C580_05 Overview

UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder

ST16C580
UART WITH 16-BYTE FIFO’s AND
INFRARED (IrDA) ENCODER/DECODER
August 2005
GENERAL DESCRIPTION
The ST16C580
1
is a universal asynchronous receiver and transmitter (UART) and is pin compatible with the ST16C550
UART. The 580 is an enhanced UART with 16 byte FIFO’s, automatic hardware/software flow control, and data rates
up to 1.5Mbps. Onboard status registers provide the user with error indications and operational status. Modem
interface control is included and can be optionally configured to operate with the Infrared (IrDA) encoder/decoder. The
system interrupts may be tailored to meet user requirements. An internal loop-back capability allows onboard
diagnostics. The 580 is available in the 48 pin TQFP package. It is fabricated in an advanced CMOS process to achieve
low drain power and high speed requirements.
48 Pin TQFP Package
-DSR
-CTS
38
VCC
N.C.
FEATURES
Pin to pin and functionally compatible to the Industry
Standard 16550
2.97 to 5.5 volt operation
1.5 Mbps transmit/receive operation (24MHz)
16 byte transmit FIFO
16 byte receive FIFO with error flags
Automatic hardware/software flow control
Programmable Xon/Xoff characters
Independent transmit and receive control
Software selectable Baud Rate Generator pre-
scaleable clock rates of 1X or 4X
Four selectable transmit/receive FIFO interrupt trig-
ger levels
Standard modem interface or Infrared IrDA encode/
decoder interface
Sleep mode ( 200µA stand-by )
Low operating current ( 1.2mA typ.)
N.C.
D5
D6
D7
RCLK
N.C.
RX
TX
CS0
CS1
-CS2
-BAUDOUT
1
2
3
4
5
6
7
8
9
10
11
12
48
47
46
45
44
43
42
41
40
39
37
N.C.
-CD
-RI
D4
D3
D2
D1
D0
36
35
34
33
32
N.C.
RESET
-OP1
-DTR
-RTS
-OP2
INT
-RXRDY
A0
A1
A2
N.C.
XR16C580CQ48
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
-TXRDY
N.C.
GND
N.C.
XTAL1
ORDERING INFORMATION
Part number
Package
Operating temp
Device Status
ST16C580CQ48
ST16C580IQ48
48-Lead TQFP
48-Lead TQFP
0° C to + 70° C
-40° C to + 85° C
Active
Active
*Note 1 Covered by U.S. Patent #5,649,122.
Rev. 1.22
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
XTAL2
-DDIS
-IOW
IOW
-IOR
IOR
-AS
24

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Description UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder UART with 16-Byte FIFOs and Infrared (IrDA) Encoder/Decoder

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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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