參數(shù)資料
型號： XR16C850CM-F
廠商： Exar Corporation
文件頁數(shù)： 1/56頁
文件大?。?/td> 0K
描述： IC UART FIFO 128B 48TQFP
標(biāo)準(zhǔn)包裝： 250
特點(diǎn)： *
通道數(shù)： 1，UART
FIFO's： 128 字節(jié)
規(guī)程： RS485
電源電壓： 2.97 V ~ 5.5 V
帶自動流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動位檢測功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 48-TQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（7x7）
包裝： 托盤
其它名稱： 1016-1658
XR16C850CM-F-ND
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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參數(shù)描述
XR16C850CMTR-F 功能描述:UART 接口集成電路 UART w/128 Bytes FIFO & IrDA 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
XR16C850CP 制造商:EXAR 制造商全稱:EXAR 功能描述:UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
XR16C850CQ 制造商:EXAR 制造商全稱:EXAR 功能描述:UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
XR16C850IJ 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART WITH 128-BYTE FIFO
XR16C850IJ-F 功能描述:UART 接口集成電路 UARTW/128BYTE FIFO 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
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