参数资料
| 型号： | XR20M1280IL40-F |
| 厂商： | Exar Corporation |
| 文件页数： | 34/63页 |
| 文件大小： | 0K |
| 描述： | IC UART I2C/SPI 128 BYTE 40QFN |
| 产品培训模块： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 标准包装： | 490 |
| 通道数： | 1，UART |
| FIFO's： | 128 字节 |
| 规程： | RS485 |
| 电源电压： | 1.62 V ~ 3.63 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 |
| 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： | 1016-1385 |
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XR20M1280
4
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
REV. 1.0.0
PIN DESCRIPTIONS
Pin Description
NAME
QFN-24
PIN#
QFN-32
PIN#
QFN-40
PIN#
TYPE
DESCRIPTION
I2C (SPI) INTERFACE
I2C/SPI#
24
1
I
I2C-bus or SPI interface select. I2C-bus interface is selected if this
pin is HIGH. SPI interface is selected if this pin is LOW
SDA
(GND)
2
4
I/O
I2C-bus data input/output (open-drain). If SPI configuration is
selected, then this pin should be tied LOW.
SCL
3
5
I
I2C-bus or SPI serial input clock.
When the I2C-bus interface is selected, the serial clock idles HIGH.
When the SPI interface is selected, the serial clock idles LOW.
IRQ#
4
6
OD
Interrupt output (open-drain, active LOW).
A0
(CS#)
6
8
I
I2C-bus device address select A0 or SPI chip select. If I2C-bus con-
figuration is selected, this pin along with the A1 pin allows user to
change the device’s base address. If SPI configuration is selected,
this pin is the SPI chip select pin (Schmitt-trigger, active LOW).
A1
(SI)
5
7
I
I2C-bus device address select A1 or SPI data input pin. If I2C-bus
configuration is selected, this pin along with A0 pin allows user to
change the device’s base address. If SPI configuration is selected,
this pin is the SPI data input pin.
SO
(NC)
1
3
O
SPI data output pin. If I2C-bus configuration is selected, this pin
must be left unconnected.
RESET#
7
9
10
I
Reset (active LOW) - A longer than 40 ns LOW pulse on this pin will
reset the internal registers and all outputs. The UART transmitter
output will be idle and the receiver input will be ignored.
MODEM I/O and GPIOs
TX
13
28
36
O
UART Transmit Data or infrared encoder data. Standard transmit
and receive interface is enabled when MCR[6] = 0. In this mode, the
TX signal will be a logic 1 during reset or idle (no data). Infrared
IrDA transmit and receive interface is enabled when MCR[6] = 1. In
the Infrared mode, the inactive state (no data) for the Infrared
encoder/decoder interface is a logic 0. If it is not used, leave it
unconnected.
RX
14
29
37
I
UART Receive Data or infrared receive data. Normal receive data
input must idle at logic 1 condition. The infrared receiver idles at
logic 0. This input should be connected to VCC when not used.
RTS#
15
27
35
O
UART Request-to-Send (active low) or general purpose output. This
output must be asserted prior to using auto RTS flow control, see
EFR[6], MCR[1] and IER[6].
CTS#
12
26
34
I
UART Clear-to-Send (active low) or general purpose input. It can
be used for auto CTS flow control, see EFR[7], MSR[4] and IER[7].
This input should be connected to VCC when not used.
GPIO0/DTR#
20
25
33
I/O
General purpose I/O or UART Data-Terminal-Ready (active low).
GPIO1/DSR#
19
24
32
I/O
General purpose I/O or UART Data-Set-Ready (active low).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR20M1280IL40TR-F | 功能描述:UART 接口集成电路 1Ch 12C/SPI UART w/ Lvl Shftrs & 16GPIOs 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 |
| XR20M1280L24-0A-EB | 功能描述:UART 接口集成电路 EVAL F/M1280 QFN24 I2C 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 |
| XR20M1280L24-0B-EB | 功能描述:UART 接口集成电路 EVAL F/ M1280 QFN24 SPI 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 |
| XR20M1280L32-0A-EB | 功能描述:UART 接口集成电路 EVAL F/M1280 QFN32 I2C 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 |
| XR20M1280L32-0B-EB | 功能描述:UART 接口集成电路 EVAL F/M1280 QFN32 SPI 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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