參數(shù)資料
型號: XR16M2650IL32-F
廠商: Exar Corporation
文件頁數(shù): 1/47頁
文件大小: 0K
描述: IC UART FIFO 32B DUAL 32QFN
標準包裝: 490
特點: *
通道數(shù): 2,DUART
FIFO's: 32 字節(jié)
規(guī)程: RS232,RS422
電源電壓: 1.62 V ~ 3.63 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調制解調器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應商設備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 托盤
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16M2650
HIGH PERFORMANCE LOW VOLTAGE DUART WITH 32-BYTE FIFO
MAY 2007
REV. 1.0.2
GENERAL DESCRIPTION
The XR16M26501 (M2650) is a high performance
dual universal asynchronous receiver and transmitter
(UART) with 32 bytes TX and RX FIFOs. The device
operates from 1.62 to 3.63 volts and is pin-to-pin and
software compatible to the ST16C2550, XR16V2550
and XR16V2650. It supports Exar’s enhanced
features of selectable FIFO trigger level, automatic
hardware (RTS/CTS) and software flow control, and a
complete modem interface. Onboard registers
provide the user with operational status and data
error flags. An internal loopback capability allows
system diagnostics. Independent programmable
baud rate generators are provided in each channel to
select data rates up to 16 Mbps at 3.3 Volt with 4X
sampling clock. The M2650 is available in 48-pin
TQFP and 32-pin QFN packages.
NOTE: 1 Covered by U.S. Patent #5,649,122
APPLICATIONS
Portable Appliances
Telecommunication Network Routers
Ethernet Network Routers
Cellular Data Devices
Factory Automation and Process Controls
FEATURES
1.62 to 3.63 Volt Operation
Pin-to-pin and software compatible to ST16C2550
in the 48-TQFP package
Pin-to-pin and software compatible to XR16L2550,
XR16V2550 and XR16V2650
Two independent UART channels
Register set is 16550 compatible
Data rate of up to 16 Mbps at 3.3 V
Data rate of up to 12.5 Mbps at 2.5 V
Data rate of up to 8 Mbps at 1.8V
Fractional Baud Rate Generator
Transmit and Receive FIFOs of 32 bytes
Selectable TX and RX FIFO Trigger Levels
Automatic Hardware (RTS/CTS) Flow Control
Automatic Software (Xon/Xoff) Flow Control
Wireless Infrared (IrDA 1.0) Encoder/Decoder
Automatic sleep mode
Full modem interface
Device Identification and Revision
Crystal oscillator (up to 24MHz) or external clock
(up to 64MHz) input
48-TQFP and 32-QFN packages
FIGURE 1. XR16M2650 BLOCK DIAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA, RXA, DTRA#,
DSRA#, RTSA#,
CTSA#, CDA#, RIA#,
OP2A#
8-bit Data
Bus
Interface
UART Channel A
32 Byte TX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
1.62 to 3.63 Volt VCC
GND
TXB, RXB, DTRB#,
DSRB#, RTSB#,
CTSB#, CDB#, RIB#,
OP2B#
UART Channel B
(same as Channel A)
A2:A0
D7:D0
CSA#
CSB#
INTA
INTB
IOW#
IOR#
Reset
TXRDYA#
TXRDYB#
RXRDYA#
RXRDYB#
32 Byte RX FIFO
相關PDF資料
PDF描述
1-1776244-9 TERM BLOCK RCPT 19POS VERT 5MM
1-1776244-8 TERM BLOCK RCPT 18POS VERT 5MM
1-1776244-7 TERM BLOCK RCPT 17POS VERT 5MM
1-1776244-6 TERM BLOCK RCPT 16POS VERT 5MM
1-1776244-5 TERM BLOCK RCPT 15POS VERT 5MM
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