参数资料
型号: XR16V2752IJ-F
厂商: Exar Corporation
文件页数: 13/51页
文件大小: 0K
描述: IC UART FIFO 64B DUAL 44PLCC
标准包装: 27
特点: *
通道数: 2,DUART
FIFO's: 64 字节
规程: RS232,RS485
电源电压: 2.25 V ~ 3.6 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 管件
XR16V2752
20
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
REV. 1.0.2
2.21
Internal Loopback
The V2752 UART provides an internal loopback capability for system diagnostic purposes. The internal
loopback mode is enabled by setting MCR register bit-4 to logic 1. All regular UART functions operate normally.
Figure 12 shows how the modem port signals are re-configured. Transmit data from the transmit shift register
output is internally routed to the receive shift register input allowing the system to receive the same data that it
was sending. The TX, RTS# and DTR# pins are held while the CTS#, DSR# CD# and RI# inputs are ignored.
Caution: the RX input pin must be held HIGH during loopback test else upon exiting the loopback test the
UART may detect and report a false “break” signal. Also, Auto RTS/CTS flow control is not supported during
internal loopback.
FIGURE 12. INTERNAL LOOP BACK IN CHANNEL A AND B
TXA/TXB
RXA/RXB
Modem
/
G
e
n
e
ral
Purpos
e
Control
Logic
Inte
rn
a
lD
a
ta
Bus
L
ines
and
Co
ntrol
Signa
ls
RTSA#/RTSB#
MCR bit-4=1
VCC
Transmit Shift Register
(THR/FIFO)
Receive Shift Register
(RHR/FIFO)
CTSA#/CTSB#
DTRA#/DTRB#
DSRA#/DSRB#
RIA#/RIB#
CDA#/CDB#
OP1#
OP2#
RTS#
CTS#
DTR#
DSR#
RI#
CD#
VCC
OP2A#/OP2B#
相关PDF资料
PDF描述
XR16V554IVTR-F IC UART FIFO 16B QUAD 64LQFP
XR16V564IJ-F IC UART FIFO 32B QUAD 68PLCC
XR16V598IQ100-F IC UART FIFO 16B OCTAL 100QFP
XR16V654DIV-F IC UART FIFO 64B QUAD 64LQFP
XR16V698IQ100-F IC UART FIFO 32B OCTAL 100QFP
相关代理商/技术参数
参数描述
XR16V2752IJTR-F 制造商:Exar Corporation 功能描述:UART 2-CH 64Byte FIFO 2.5V/3.3V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:XR16V2752IJTR-F
XR16V2752IL-0B-EB 功能描述:UART 接口集成电路 Supports V2752 32pin 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
XR16V2752IL32 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2752IL-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
XR16V2752ILTR-F 制造商:Exar Corporation 功能描述:UART 2-CH 64Byte FIFO 2.5V/3.3V 32-Pin QFN EP T/R 制造商:Exar Corporation 功能描述:XR16V2752ILTR-F