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参数资料
型号： XR16C850CJ-F
厂商： Exar Corporation
文件页数： 1/56页
文件大小： 0K
描述： IC UART FIFO 128B 44PLCC
标准包装： 27
特点： *
通道数： 1，UART
FIFO's： 128 字节
规程： RS485
电源电压： 2.97 V ~ 5.5 V
带自动流量控制功能： 是
带IrDA 编码器/解码器： 是
带故障启动位检测功能： 是
带调制解调器控制功能： 是
带CMOS： 是
安装类型： 表面贴装
封装/外壳： 44-LCC（J 形引线）
供应商设备封装： 44-PLCC（16.59x16.59）
包装： 管件
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
xr
XR16C850
2.97V TO 5.5V UART WITH 128-BYTE FIFO
AUGUST 2005
REV. 2.3.1
GENERAL DESCRIPTION
The XR16C8501 (850) is a Universal Asynchronous
Receiver and Transmitter (UART). This device
supports Intel and PC mode data bus interface and is
software compatible to industry standard 16C450,
16C550, ST16C580 and ST16C650A UARTs.
The 850 has 128 bytes of TX and RX FIFOs and is
capable of operating up to a serial data rate of 2
Mbps. The internal registers include the 16C550
register set plus Exar’s enhanced registers for
additional
features
to
support
today’s
highly
demanding
data
communication
needs.
The
enhanced features include automatic hardware and
software flow control, selectable TX and RX trigger
levels, and wireless infrared (IrDA) encoder/decoder.
The XR16C850 is available in the 44 pin PLCC and
48 pin TQFP packages. They both provide the
standard Intel Bus mode and PC ISA bus (PC) mode.
The Intel Bus mode is compatible with the ST16C450
and ST16C550 while the PC mode allows connection
to the PC ISA bus.
NOTE: 1 Covered by U.S. patent #5,649,122 and #5,949,787.
FEATURES
Added feature in devices with top mark date code of
"F2 YYWW" and newer:
■ 5 volt tolerant inputs
■ 0 ns address hold time (TAH)
2.97 to 5.5 volt operation
Pin to pin compatible to ST16C550, ST16C580,
ST16C650A and TL16C750
128-byte Transmit and Receive FIFOs
Transmit/Receive FIFO Counters
Programmable TX/RX FIFO Trigger Levels
Automatic Hardware/Software Flow Control
Auto RS-485 half duplex direction support
Programmable Xon/Xoff characters
Infrared (IrDA) TX and RX Encoder/Decoder
Sleep Mode (100 uA stand-by)
APPLICATIONS
Battery Operated Electronics
Internet Appliances
Handheld Terminal
Personal Digital Assistants
Cellular Phones DataPort
Wireless Infrared Data Communications Systems
FIGURE 1. BLOCK DIAGRAM
X T AL 1/CL K
XT A L 2
C rystal O sc/B u ffer
DTR#, RT S#
DSR#, C T S #,
CD #, RI#
In tel o r
PC D ata
Bus
In terface
128 B yte T X F IF O
Baud Rate G enerato r
In frared
E n coder
T ran sm itter
UAR T
Configuratio n
Regs
IO R
IO R #
128 B yte R X F IF O
In frared
Decoder
R eceiver
M odem C ontro l S ignals
TX
RX
CTS Flow
Contro l
RTS Flow
Contro l
BR G
P rescaler
CS1
CS0
DD IS#
IN T
TX RD Y #
RX R D Y #
A2:A 0
D7:D 0
IO W
CS2#
PC M O D E #
S1
S2
S3
IR Q A
IR Q B
IR Q C
IO W #
R ESET
PC
M ode:
CO M 1 to
4
D ecode Logic
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相关代理商/技术参数
参数描述
XR16C850CJTR-F 制造商:Exar Corporation 功能描述:UART 1-CH 128Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:XR16C850CJTR-F
XR16C850CM 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16C850CM-0A-EVB 功能描述:UART 接口集成电路 Supports C850 48 ld TQFP, ISA Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR16C850CM-F 功能描述:UART 接口集成电路 UARTW/128BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR16C850CMTR-F 功能描述:UART 接口集成电路 UART w/128 Bytes FIFO & IrDA RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
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