參數(shù)資料
型號： XR16L2551IL
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： LOW VOLTAGE DUART WITH POWERSAVE
中文描述： 2 CHANNEL(S), 3.125M bps, SERIAL COMM CONTROLLER, QCC32
封裝： 5 X 5 MM, 0.90 MM HEIGHT, QFN-32
文件頁數(shù)： 1/48頁
文件大?。?/td> 287K
代理商： XR16L2551IL
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
á
XR16L2551
LOW VOLTAGE DUART WITH POWERSAVE
SEPTEMBER 2003
GENERAGENERAL DESCRIPTION
REV. 1.0.0
The XR16L2551 (L2551) is a low voltage dual
universal asynchronous receiver and transmitter
(UART) with 5 Volt tolerant inputs. The device
includes additional capability over the ST16C2550:
Intel and Motorola data bus interface selection,
hardware and software flow control, infrared encoder/
decoder, sleep mode and a PowerSave mode for
battery operation. The L2551’s enhanced register set
is compatible to the ST16C2550 and XR16L2550. It
supports the Exar’s enhanced features of 16 bytes of
TX and RX FIFOs and a complete modem interface.
Onboard registers provide the user with operational
status and data error tags. An internal loopback
capability allows onboard diagnostics. Independent
programmable baud rate generator is provided in
each channel to support data rates up to 3.125 Mbps.
N
OTE
:
1 Covered by U.S. Patent #5,649,122.
APPLICATIONS
Battery Operated Instruments
Data Port Adapters
Handheld Appliances
Radio Frequency Data Modems
Base Stations
USB Hubs
Industrial Automation Controls
FEATURES
2.25 to 5.5 Volt Operation
5 Volt Tolerant Inputs
Intel or Motorola Bus Interface Select (16/68#)
pin
Pin-to-pin compatible to XR16L2751CM
Two Independent UARTs
I
Up to 3.125 Mbps at 5V, 2 Mbps at 3.3V, and 1
Mbps at 2.5V with external clock input
I
Up to 1.5 Mbps at 5V, 1.25 Mbps at 3.3V and 1
Mbps at 2.5V with crystal clock input
I
16 bytes of Transmit and Receive FIFOs
I
Automatic RTS/CTS hardware flow control
I
Automatic Xon/Xoff software flow control
I
Wireless infrared encoder/decoder
I
Receive FIFO trigger levels select
I
Programmable character lengths (5, 6, 7 or 8)
with even, odd, forced or no parity
I
Full Modem Interface (CTS#, RTS#, DSR#,
DTR#, RI#, CD#) in the 48-TQFP package
Sleep Mode with PowerSave feature for battery
operation
Industrial Temperature range
Tiny 32-QFN, no lead package (5x5x0.9mm)
48-TQFP Package
F
IGURE
1. XR16L2551 B
LOCK
D
IAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA, RXA,
RTSA#, CTSA#,
( DTR#, DSR#
CD#, RIA#, OP2A# )
Intel or
Motorola
Data Bus
Interface
UART Channel A
16 Byte TX FIFO
16 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
2.25 to 5.5 Volt VCC
GND
*5 Volt Tolerant Inputs
2551BLK
UART Channel B
(same as Channel A)
A2:A0
D7:D0
CSA# (CS#)
CSB# (A3)
INTA (IRQ#)
INTB (logic 0)
16/68#
PwrSave
IOW# (R/W#)
IOR# (VCC)
Reset (Reset#)
TXRDYA#
TXRDYB#
RXRDYA#
RXRDYB#
TXB, RXB,
RTSB#, CTSB#,
( DTRB#, DSRB#
CDB#, RIB#, OP2B# )
相關(guān)PDF資料
PDF描述
XR16L2551IM LOW VOLTAGE DUART WITH POWERSAVE
XR16L2552IJ 2.25V TO 5.5V DUART WITH 16-BYTE FIFO
XR16L2552IM 2.25V TO 5.5V DUART WITH 16-BYTE FIFO
XR16L2552 2.25V TO 5.5V DUART WITH 16-BYTE FIFO
XR16L2750CJ 2.25V TO 5.5V DUART WITH 64-BYTE FIFO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L2551IL-0A-EB 功能描述:UART 接口集成電路 Supports L2551 32pin QFN, ISA Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2551IL-0B-EB 功能描述:UART 接口集成電路 Supports L2551 32pin QFN, PCI Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2551IL-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2551ILTR-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2551IM 制造商:EXAR 制造商全稱:EXAR 功能描述:LOW VOLTAGE DUART WITH POWERSAVE
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*