参数资料
| 型号： | XR68M752IL32TR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 1/54页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 64B DUAL 32QFN |
| 标准包装： | 3,000 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 64 字节 |
| 规程： | RS232，RS422，RS485 |
| 电源电压： | 1.62 V ~ 3.63 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： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 带卷 (TR) |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16M752/XR68M752
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
JUNE 2009
REV. 1.1.1
GENERAL DESCRIPTION
The XR16M752/XR68M7521 (M752) is a high
performance dual universal asynchronous receiver
and transmitter (UART) with 64 byte TX and RX
FIFOs. The M752 operates from 1.62 to 3.63 volts. It
is pin-to-pin and software compatible to the
TL16C752B and SC16C752B, but with additional
features such as a programmable fractional baud rate
generator, automatic RS-485 half-duplex direction
control, infrared mode and 8X and 4X sampling rate.
The standard features include 16 selectable TX and
RX FIFO trigger levels, automatic hardware (RTS/
CTS) and software (Xon/Xoff) 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. Each channel is independently
programmable for data rates up to 16 Mbps at 3.3V
with a 4X sampling rate. The XR68M752 has an
additional 16/68# pin to select between the Intel and
Motorola bus interface. The M752 is available in the
48-pin TQFP, 32-pin QFN and 49-pin STBGA
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 3.6 Volt Operation
Pin-to-pin and software compatible to TI’s
TL16C752B and Philips’ SC16C752B in the 48-
TQFP package
Two independent UART channels
■ 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 1.8 V
■ Fractional Baud Rate Generator
■ Data sampling rates of 16X, 8X and 4X
■ Transmit and Receive FIFOs of 64 bytes
■ Programmable TX and RX FIFO Trigger Levels
■ Automatic Hardware (RTS/CTS) Flow Control
■ Automatic Software (Xon/Xoff) Flow Control
■ Halt and Resume Transmission Control
■ Automatic
RS-485
Half-duplex
Direction
Control Output via RTS#
■ Wireless Infrared (IrDA 1.0) Encoder/Decoder
■ Automatic sleep mode
■ Full modem interface
Crystal oscillator (up to 24MHz) or external clock
(up to 64MHz) input
48-TQFP, 32-QFN and 49-STBGA packages
FIGURE 1. XR16M752 BLOCK DIAGRAM
XTAL1
XTAL2
Crystal Osc/Buffer
TXA, RXA, DTRA#,
DSRA#, RTSA#,
DTSA#, CDA#, RIA#,
OP2A#
8-bit Data
Bus
Interface
UART Channel A
64 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# (CS#)
CSB# (A3)
INTA (IRQ#)
INTB (NC)
IOW# (R/W#)
IOR# (NC)
Reset/Reset#
TXRDYA#
TXRDYB#
RXRDYA#
RXRDYB#
64 Byte RX FIFO
16/68#
相关PDF资料 |
PDF描述 |
|---|---|
| ATMEGA168-15AT | MCU AVR 16K FLASH 15MHZ 32-TQFP |
| ST16C450CQ48TR-F | IC UART SINGLE 48TQFP |
| ST16C450IJ44TR-F | IC UART SINGLE 44PLCC |
| XR16M770IL24-F | IC UART FIFO 64B 24QFN |
| XR16M680IL32-F | IC UART FIFO 32B 32QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR68M752IM-0B-EB | 功能描述:界面开发工具 Support XR68M752 48L TQFP, PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR68M752IM48 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR68M752IM48-F | 功能描述:UART 接口集成电路 UART 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 |
| XR68M752IM48TR-F | 制造商:Exar Corporation 功能描述:XR68M752 Series 16 Mbps High Performance DUART With 64-Byte FIFO - TQFP-48 |
| XR7090AA-BC-0001 | 制造商:CREE 制造商全称:Cree, Inc 功能描述:XLamp㈢ XR LED Binning and Labeling |
发布紧急采购，3分钟左右您将得到回复。