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XR16L2752IJ PDF预览

XR16L2752IJ

更新时间: 2024-09-16 21:54:51
品牌 Logo 应用领域
艾科嘉 - EXAR 先进先出芯片
页数 文件大小 规格书
49页 622K
描述
2.25V TO 5.5V DUART WITH 64-BYTE FIFO

XR16L2752IJ 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:LCC包装说明:QCCJ, LDCC44,.7SQ
针数:44Reach Compliance Code:compliant
HTS代码:8542.31.00.01风险等级:5.86
其他特性:OPERATES AT 2.5V SUPPLY @ 24 MHZ地址总线宽度:3
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-PQCC-J44JESD-609代码:e0
长度:16.585 mm低功率模式:YES
串行 I/O 数:2端子数量:44
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装等效代码:LDCC44,.7SQ封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):240
电源:2.5/5 V认证状态:Not Qualified
座面最大高度:4.57 mm子类别:Serial IO/Communication Controllers
最大供电电压:5.5 V最小供电电压:4.5 V
标称供电电压:5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:16.585 mm
uPs/uCs/外围集成电路类型:SERIAL IO/COMMUNICATION CONTROLLER, SERIAL

XR16L2752IJ 数据手册

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xr  
XR16L2752  
2.25V TO 5.5V DUART WITH 64-BYTE FIFO  
AUGUST 2004  
REV. 1.2.0  
FEATURES  
GENERAL DESCRIPTION  
2.25 to 5.5 Volt Operation  
5 Volt Tolerant Inputs  
The XR16L27521 (2752) is a low voltage dual  
universal asynchronous receiver and transmitter  
(UART) with 5 Volt tolerant inputs. The device  
operates from 2.25 to 5.5 Volt supply range and is  
pin-to-pin compatible to Exar’s ST16C2552 and  
XR16C2852. The 2752 register set is compatible to  
the ST16C2552 and the XR16C2852 enhanced  
features. It supports the Exar’s enhanced features of  
64 bytes of TX and RX FIFOs, programmable FIFO  
trigger level and FIFO level counters, automatic  
hardware (RTS/CTS) and software flow control,  
automatic RS-485 half duplex direction control output  
and a complete modem interface. Onboard registers  
provide the user with operational status and data  
error flags. An internal loopback capability allows  
system diagnostics. Independent programmable  
baud rate generators are provided in each channel to  
select data rates up to 6.25 Mbps at 5 Volt and 8X  
sampling. The 2752 is available in the 44-pin PLCC  
package.  
Pin-to-pin compatible to Exar’s ST16C2552 and  
XR16C2852  
Larger FIFO version of PC16C552  
Two independent UART channels  
Reg set compatible to 16C2552 and 16C2852  
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  
Transmit and Receive FIFOs of 64 bytes  
Programmable TX and RX FIFO Trigger Levels  
Transmit and Receive FIFO Level Counters  
Automatic Hardware (RTS/CTS) Flow Control  
Selectable Auto RTS Flow Control Hysteresis  
Automatic Software (Xon/Xoff) Flow Control  
Automatic RS-485 Half-duplex Direction  
Control Output via RTS#  
Wireless Infrared (IrDA 1.0) Encoder/Decoder  
Automatic sleep mode  
NOTE: 1 Covered by U.S. Patent #5,649,122 and #5,949,787  
APPLICATIONS  
Full modem interface  
Alternate Function Register  
Portable Appliances  
Device Identification and Revision  
Crystal oscillator or external clock input  
Industrial and commercial temperature ranges  
44-PLCC package  
Telecommunication Network Routers  
Ethernet Network Routers  
Cellular Data Devices  
Factory Automation and Process Controls  
FIGURE 1. XR16L2752 BLOCK DIAGRAM  
2.25 V to 5.5 V VCC  
GND  
*5 Volt Tolerant Inputs  
(Except External Clock Input)  
A2:A0  
D7:D0  
IOR#  
IOW#  
CS#  
UART Channel A  
TXA (or TXIRA)  
64 Byte TX FIFO  
UART  
Regs  
CHSEL  
IR  
ENDEC  
TX & RX  
INTA  
INTB  
BRG  
64 Byte RX FIFO  
RXA (or RXIRA)  
8-bit Data  
TXRDYA#  
Bus  
TXRDYB#  
TXB (or TXIRB)  
RXB (or RXIRB)  
UART Channel B  
(same as Channel A)  
Interface  
MFA#  
(OP2A#,  
BAUDOUTA#, or  
RXRDYA#)  
XTAL1  
XTAL2  
CTS#A/B, RI#A/B,  
CD#A/B, DSR#A/B  
Crystal Osc/Buffer  
MFB#  
(OP2B#,  
BAUDOUTB#, or  
RXRDYB#)  
Modem Control Logic  
Reset  
DTR#A/B, RTS#A/B  
2752BLK  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com  

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