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參數資料
| 型號： | XR16M681IL32-0C-EB |
| 廠商： | Exar Corporation |
| 文件頁數： | 1/51頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR16M681-C 32QFN |
| 標準包裝： | 1 |
| 系列： | * |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16M681
1.62V TO 3.63V UART WITH 32-BYTE FIFO AND VLIO INTERFACE
AUGUST 2009
REV. 1.0.1
GENERAL DESCRIPTION
The XR16M6811 (M681) is an enhanced Universal
Asynchronous Receiver and Transmitter (UART) with
a VLIO bus interface and has 32 bytes of transmit
and receive FIFOs, programmable transmit and
receive FIFO trigger levels, automatic hardware and
software flow control, and data rates of up to 20 Mbps
at 3.3V, 16 Mbps at 2.5V and 10 Mbps at 1.8V with
4X data sampling rate.
The Auto RS-485 Half-Duplex Direction control
feature simplifies both the hardware and software for
half-duplex RS-485 applications. In addition, the
Multidrop mode with Auto Address detection
increases the performance by simplifying the
software routines.
The Independent TX/RX Baud Rate Generator
feature allows the transmitter and receiver to operate
at different baud rates. Power consumption of the
M681 can be minmized by enabling the sleep mode
and PowerSave mode.
The M681 has a 16550 compatible register set that
provide users with operating status and control,
receiver error indications, and modem serial interface
controls. An internal loopback capability allows
onboard diagnostics. The M681 is available in 24-pin
QFN, 32-pin QFN and 25-pin BGA packages.
NOTE: 1 Covered by U.S. Patent #5,649,122.
FEATURES
VLIO bus interface
Pin-to-pin compatible with SC16C850V and
SC16C850SV in 32-QFN package
20 Mbps maximum data rate
Programmable TX/RX FIFO Trigger Levels
TX/RX FIFO Level Counters
Independent TX/RX Baud Rate Generator
Fractional Baud Rate Generator
Auto RTS/CTS Hardware Flow Control
Auto XON/XOFF Software Flow Control
Auto RS-485 Half-Duplex Direction Control
Multidrop mode w/ Auto Address Detect
Sleep Mode with Automatic Wake-up
PowerSave mode
Infrared (IrDA 1.0 and 1.1) mode
1.62V to 3.63V supply operation
Crystal oscillator or external clock input
APPLICATIONS
Personal Digital Assistants (PDA)
Cellular Phones/Data Devices
Battery-Operated Devices
Global Positioning System (GPS)
Bluetooth
FIGURE 1. XR16M681 BLOCK DIAGRAM
VCC
XTAL1
XTAL2
Crystal Osc/Buffer
TX, RX,
RTS#, CTS#,
DTR#, DSR#,
VLIO Bus
Interface
32 Byte RX FIFO
RX
BRG
IR
ENDEC
TX &
RX
UART
Regs
LLA#
PwrSave
32 Byte TX FIFO
RI#, CD#
RESET#
AD7:AD0
IOW #
CS#
INT
IOR#
GND
(1.62 to 3.63 V)
TX
BRG
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相關代理商/技術參數 |
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| XR16M681IL32-F | 功能描述:UART 接口集成電路 1.62-3.63V; 32-Byte FIFO & VLIO; UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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 |
| XR16M698 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO |
| XR16M698IQ-0A-EVB | 功能描述:界面開發工具 Eval Board for XR16M698IQ-0A RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M698IQ-0B-EVB | 功能描述:界面開發工具 Eval Board for XR16M698IQ-0B RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M698IQ100 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO |
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