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參數(shù)資料
型號(hào)： XR16V2651IL-0B-EB
廠商： Exar Corporation
文件頁(yè)數(shù)： 1/51頁(yè)
文件大小： 0K
描述： EVAL BOARD FOR V2651 32QFN
標(biāo)準(zhǔn)包裝： 1
系列： *
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16V2651
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
MAY 2007
REV. 1.0.2
GENERAL DESCRIPTION
The XR16V26511 (V2651) is a high performance dual
universal asynchronous receiver and transmitter
(UART) with 32 byte TX and RX FIFOs. The device
operates from 2.25 to 3.6 volts with 5 Volt tolerant
inputs and is pin-to-pin and software compatible to
Exar’s XR16V2551 and XR16L2551. The device
includes
2
additional
capabilities
over
the
XR16V2650: Intel and Motorola data bus selection
and a “PowerSave” mode to further reduce sleep
current to a minimum during sleep mode. It supports
the Exar’s enhanced features of selectable FIFO
trigger level, automatic hardware (RTS/CTS) and
software flow control, and a complete modem
interface. An internal loopback capability allows
system diagnostics. Independent programmable
fractional baud rate generators are provided in each
channel to select data rates up to 16 Mbps at 3.3 Volt
and 4X sampling clock. The V2651 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
2.25 to 3.6 Volt Operation
5 Volt Tolerant Inputs
Pin-to-pin compatible to Exar’s XR16L2751 in the
48-TQFP package
Two independent UART channels
■ Register set identical to 16V2650
■ Data rate of up to 16 Mbps at 3.3 V, and 12.5
Mbps at 2.5 V with 4X sampling rate
■ 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 with wake-up interrupt
■ Full modem interface
PowerSave Feature reduces sleep current to 15 A
Device Identification and Revision
Crystal oscillator (up to 32MHz) or external clock
(up to 64MHz) input
48-TQFP and 32-QFN packages
FIGURE 1. XR16V2651 BLOCK DIAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA, RXA, DTRA#,
DSRA#, RTSA#,
DTSA#, CDA#, RIA#,
OP2A#
Intel or
Motorola
Data Bus
Interface
UART Channel A
32 Byte TX FIFO
32 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
2.25 to 3.6V VCC
GND
*5 Volt Tolerant Inputs
TXB, RXB, DTRB#,
DSRB#, RTSB#,
CTSB#, CDB#, RIB#,
OP2B#
UART Channel B
(same as Channel A)
A2:A0
D7:D0
CSA# (CS#)
16/68#
CSB# (A3)
INTA (IRQ#)
INTB (logic 0)
PwrSave
IOW# (R/W#)
IOR# (VCC)
Reset (Reset#)
CLKSEL
TXRDYA#
TXRDYB#
RXRDYA#
RXRDYB#
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16V2651IL32 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE
XR16V2651IL-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
XR16V2651ILTR-F 制造商:Exar Corporation 功能描述:UART 2-CH 32Byte FIFO 2.5V/3.3V 32-Pin QFN EP T/R 制造商:Exar Corporation 功能描述:XR16V2651ILTR-F
XR16V2651IM 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16V2651IM-0B-EB 功能描述:UART 接口集成電路 Supports V2651 48 ld TQFP, 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
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