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XR16L2751CM-F PDF预览

XR16L2751CM-F

更新时间: 2024-09-17 21:14:31
品牌 Logo 应用领域
艾科嘉 - EXAR 通信时钟数据传输外围集成电路
页数 文件大小 规格书
50页 525K
描述
Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREEN, TQFP-48

XR16L2751CM-F 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred零件包装代码:QFP
包装说明:TFQFP, TQFP48,.35SQ针数:48
Reach Compliance Code:compliantHTS代码:8542.31.00.01
风险等级:4.3地址总线宽度:4
边界扫描:NO最大时钟频率:50 MHz
通信协议:ASYNC, BIT数据编码/解码方法:NRZ
最大数据传输速率:0.78125 MBps外部数据总线宽度:8
JESD-30 代码:S-PQFP-G48JESD-609代码:e3
长度:7 mm低功率模式:YES
湿度敏感等级:3串行 I/O 数:2
端子数量:48最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:TFQFP封装等效代码:TQFP48,.35SQ
封装形状:SQUARE封装形式:FLATPACK, THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260电源:2.5/5 V
认证状态:Not Qualified座面最大高度:1.2 mm
子类别:Serial IO/Communication Controllers最大供电电压:5.5 V
最小供电电压:2.25 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:40
宽度:7 mmuPs/uCs/外围集成电路类型:SERIAL IO/COMMUNICATION CONTROLLER, SERIAL
Base Number Matches:1

XR16L2751CM-F 数据手册

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XR16L2751  
2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE  
APRIL 2010  
REV. 1.2.3  
FEATURES  
GENERAL DESCRIPTION  
2.25 to 5.5 Volt Operation  
5 Volt Tolerant Inputs  
Functionally Compatible to ST16C2550 and  
XR16C2850 with 4 additional inputs  
1
The XR16L2751 (2751) is a low voltage dual  
universal asynchronous receiver and transmitter  
(UART) with 5 Volt tolerant inputs. The device  
includes  
2
additional capabilities over the  
XR16L2750: Intel and Motorola data bus selection  
and a “PowerSave” mode to further reduce sleep  
current to a minimum during sleep mode. The 2751’s  
register set is compatible to the ST16C2550 and  
XR16C2850 but with added functions. It supports the  
Exar’s enhanced features of 64 bytes of TX and RX  
FIFOs, programmable FIFO trigger level, FIFO level  
counters, automatic hardware and software flow  
control, automatic RS-485 half duplex direction  
control, and a complete modem interface. Onboard  
registers provide the user with operational status and  
data error tags. An internal loopback capability allows  
onboard diagnostics. Independent programmable  
baud rate generator is provided in each UART  
channel to support data rates up to 6.25 Mbps.  
Intel or Motorola Data Bus Interface Select  
Two Independent UARTs  
Up to 6.25 Mbps at 5 Volt, 4 Mbps at 3.3 Volt,  
and 3 Mbps at 2.5 Volt with 8X sampling rate  
64 bytes of Transmit and Receive FIFOs  
Transmit and Receive FIFO Level Counters  
Programmable TX and RX FIFO Trigger Levels  
Automatic Hardware (RTS/CTS) Flow Control  
Selectable RTS Flow Control Hysteresis.  
Automatic Software (Xoff/Xon) Flow Control  
Automatic RS-485 2-wire Half-duplex Direction  
Control to the Transceiver via RTS#  
Full Modem Interface  
NOTE: 1 Covered by U.S. Patent #5,649,122 and #5,949,787  
Infrared Receive and Transmit Encoder/  
decoder  
APPLICATIONS  
PowerSave Feature reduces sleep current to 15  
Portable and Battery Operated Appliances  
Wireless Access Servers  
Ethernet Network Routers  
Cellular Data Devices  
Telecommunication Network Routers  
Factory Automation and Process Controls  
µA at 3.3 Volt  
Device Identification  
Crystal or external clock input  
Industrial and Commercial Temperature ranges  
48 TQFP Package (7 x 7 x 1.0 mm)  
FIGURE 1. XR16L2751 BLOCK DIAGRAM  
*5 Volt Tolerant Inputs  
(Except XTAL1)  
2.25 to 5.5 Volt VCC  
GND  
PwrSave  
A2:A0  
D7:D0  
UART Channel A  
IOR# (VCC)  
TXA, RXA, DTRA#,  
DSRA#, RTSA#,  
DTSA#, CDA#, RIA#,  
OP2A#  
IOW# (R/W#)  
64 Byte TX FIFO  
UART  
CSA# (CS#)  
CSB# (A3)  
Regs  
IR  
ENDEC  
TX & RX  
BRG  
INTA (IRQ#)  
INTB (logic 0)  
64 Byte RX FIFO  
TXB, RXB, DTRB#,  
DSRB#, RTSB#,  
CTSB#, CDB#, RIB#,  
OP2B#  
TXRDYA#  
TXRDYB#  
RXRDYA#  
RXRDYB#  
Intel or  
Motorola  
Data Bus  
Interface  
UART Channel B  
(same as Channel A)  
XTAL1  
XTAL2  
Reset (Reset#)  
16/68#  
Crystal Osc/Buffer  
CLKSEL  
HDCNTL#  
2751BLK  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com  

XR16L2751CM-F 替代型号

型号 品牌 替代类型 描述 数据表
XR16L2751CMTR-F EXAR

完全替代

Serial I/O Controller, 2 Channel(s), 0.78125MBps, CMOS, PQFP48, TQFP-48

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