参数资料
型号: XR20V2170IL40-F
厂商: Exar Corporation
文件页数: 39/49页
文件大小: 0K
描述: IC UART/TXRX I2C/SPI RS232 40QFN
标准包装: 490
特点: *
通道数: 1,UART
FIFO's: 64 字节
规程: RS232
电源电压: 2.97 V ~ 3.63 V
带自动流量控制功能:
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: 40-VFQFN 裸露焊盘
供应商设备封装: 40-QFN 裸露焊盘(6x6)
包装: 托盘
其它名称: 1016-1478
XR20V2170IL40-F-ND
AC ELECTRICAL CHARACTERISTICS - SPI-BUS TIMING SPECIFICATIONS
Unless otherwise noted: TA=-40o to +85oC, Vcc=2.97 - 3.63V
SYMBOL
PARAMETER
LIMITS
± 10%
MIN
MAX
UNIT
CONDITIONS
fSCL
SPI clock frequency
18
MHz
TTR
CS# HIGH to SO three-state time
100
ns
CL = 70 pF
TCSS
CS# to SCL setup time
100
ns
TCSH
CS# to SCL hold time
20
ns
TDO
SCL fall to SO valid time
15
ns
CL = 70 pF
TDS
SI to SCL setup time
15
ns
TDH
SI to SCL hold time
10
ns
TCP
SCL period time
55
ns
TCH + TCL
TCH
SCL HIGH time
27
ns
TCL
SCL LOW time
27
ns
TCSW
CS# HIGH pulse width
200
ns
TD9
SPI output data valid
200
ns
TD10
SPI modem output data valid
200
ns
TD11
SPI transmit interrupt clear
200
ns
TD12
SPI modem input interrupt clear
200
ns
TD13
SPI input pin interrupt clear
200
ns
TD14
SPI receive interrupt clear
200
ns
FIGURE 23. SPI-BUS TIMING
T CSH
T CS S
T DS
T DH
T CL
T CH
CS #
SC L K
SI
SO
...
T CSH
T CS W
T DO
T TR
XR20V2170
44
I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
REV. 1.0.1
3.3V
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