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| 型号： | XR16L570IL24 |
| 厂商： | Exar Corporation |
| 文件页数： | 1/47页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 16B 24QFN |
| 产品变化通告： | Leaded UART, V&I Obsolescence 11/Apr/2011 |
| 标准包装： | 490 |
| 特点： | * |
| 通道数： | 1，UART |
| FIFO's： | 16 字节 |
| 规程： | RS232，RS422 |
| 电源电压： | 1.62 V ~ 5.5 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： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 托盘 |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16L570
SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
MAY 2007
REV. 1.0.1
GENERAL DESCRIPTION
The XR16L570 (L570) is a 1.62 to 5.5 volt Universal
Asynchronous Receiver and Transmitter (UART) with 5 volt
tolerant inputs and a reduced pin count. It is software
compatible
to
industry
standard
16C450,
16C550,
ST16C580,
ST16C650A,
XR16C850
and
XR16L580
UARTs. It has 16 bytes of TX and RX FIFOs and is capable
of operating with a serial data rate of up to 4 Mbps at 5V, 3
Mbps at 3.3V,1 Mbps at 2.5V and 750 Kbps at 1.8V. The
internal registers are compatible to the 16C550 register set
plus enhanced registers for additional features to support
today’s high bandwidth data communication needs. The
enhanced features include
automatic hardware and
software flow control to prevent data loss, selectable RX
and TX trigger levels for more efficient interrupt service,
wireless infrared (IrDA) encoder/decoder for wireless
applications and a unique Power-Save mode to increase
battery operating time. The device comes in 32-QFN and
24-QFN packages in industrial temperature range.
APPLICATIONS
Handheld Terminals and Tablets
Handheld Computers
Wireless Portable Point-of-Sale Terminals
Cellular Phones DataPort
GPS Devices
Personal Digital Assistants Modules
Battery Operated Instruments
FEATURES
Smallest Full Featured UART
1.62V to 5.5V Supply Voltage
5V Tolerant Inputs (except XTAL1/CLK)
’0 ns’ Address Hold Time (T
AH and TADH)
Software Compatible to industry standard 16C450,
16C550,
ST16C580,
ST16C650A,
XR16C850
and
XR16L580
16-byte Transmit FIFO
16-byte Receive FIFO with Errors Flags
Selectable RX and TX FIFO Trigger Levels
Automatic Hardware (RTS/CTS) Flow Control
Automatic Software (Xon/Xoff) Flow Control
Up to 4 Mbps data rate at 5.0V Operation
Up to 3 Mbps data rate at 3.3V Operation
Up to 1 Mbps data rate at 2.5V Operation
Up to 750 Kbps data rate at 1.8V Operation
Infrared (IrDA) Encoder/Decoder
Complete Modem Interface
Power-Save Mode to conserve battery power
Sleep Mode with Wake-up Interrupt
Very small packages: 24-QFN (4x4x0.9mm) and 32-QFN
(5x5x0.9mm)
Industrial Temperature Grade(-40 to +85oC)
FIGURE 1. BLOCK DIAGRAM
VCC
XTAL1 (CLK)
Clock Buffer
TX
RX
RTS#
CTS#
DTR#
DSR#
CD#
RI#
Data Bus
Interface
UART
16 Byte RX FIFO
BRG
IR
ENDEC
TX & RX
UART
Regs
*5 V Tolerant Inputs
(Except for CLK)
A2:A0
PwrSave
16 Byte TX FIFO
RESET
D7:D0
IOW#
CS#
INT
IOR#
GND
(1.62 to 5.5 V)
XTAL2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16L570IL24-0B-EB | 功能描述:UART 接口集成电路 Supports L570 24 pin QFN, PCI Interface 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 |
| XR16L570IL24-F | 功能描述:UART 接口集成电路 UART w/ POWER SAVE 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 |
| XR16L570IL24TR-F | 功能描述:UART 接口集成电路 UART w/ POWER SAVE 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 |
| XR16L570IL32 | 制造商:EXAR 制造商全称:EXAR 功能描述:SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE |
| XR16L570IL32-0A-EB | 功能描述:UART 接口集成电路 Supports L570 32 pin QFN, ISA Interface 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 |
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