XR20M1172 I²C/SPI UART with 64-Byte FIFO
The XR20M1172¹ (M1172) is a high performance two channel universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs and a selectable I²C/SPI slave interface. The M1172 operates from 1.62 to 3.63 volts. It is software compatible to the SC16CIS762/752, but with additional features such as a programmable fractional baud rate generator, and 8X and 4X sampling rate that allows for a maximum baud rate of 16 Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. The M1172 is available in the 32-pin QFN, 28-pin TSSOP and 20-pin TSSOP packages. The 32-pin QFN package has the EN485# and ENIR# pins to allow the UART to power-up in the Auto RS485 mode or the Infrared mode.
技术特性
- 1.62 to 3.6 Volt Operation
- Selectable I²C/SPI Interface
- Full-featured UART
- Data rate of up to 16 Mbps at 3.3V
- Data rate of up to 12.5 Mbps at 2.5V
- Data rate of up to 8 Mbps at 1.8V
- Fractional Baud Rate Generator
- Transmit and Receive FIFOs of 64 bytes
- 16 Selectable TX and RX FIFO Trigger Levels
- Automatic Hardware (RTS/CTS) Flow Control
- Automatic Software (Xon/Xoff) Flow Control
- Halt and Resume Transmission Control
- Automatic RS-485 Half-duplex Direction Control Output via RTS#
- Wireless Infrared (IrDA 1.0 and 1.1) Encoder/Decoder
- Automatic sleep mode (< 15 uA at 3.3V)
- General Purpose I/Os
- Full modem interface
- Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input
- 28-QFN, 24-QFN, 16-QFN, 24-TSSOP, 16-TSSOP packages
- Pb-Free, RoHS Compliant Versions Offered
应用领域 APPLICATION
- Portable Appliances
- Battery-Operated Devices
- Cellular Data Devices
- Factory Automation and Process Controls
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技术指标
| 中央处理器接口 |
I2C/SPI |
| 频道 |
1 |
| 数据传输速率@5/3.3/2.5V |
na/16/12.5 |
| Max Data Rate @ 5/3.3/2.5/1.8V (Mbps) |
na/16/12.5/8 |
| 发送器/接收器FIFO(Bytes) |
64/64 |
| 发送器/接收器FIFOCtrs |
Yes |
| 发送器/接收器FIFOINT Trig |
Yes |
| 自动RTS/CTS |
Yes |
| IrDa供应 |
Yes |
| 5VTol输入 |
No |
| 电压供应 |
1.62-3.63 |
| 封装 |
TSSOP-16, TSSOP-24, QFN-16, QFN-24, QFN-28 |
功能框图 Functional Block Diagram
订购信息 Ordering Information
| 器件型号 |
有害物质限制 |
最低温度 |
最高温度 |
状态 |
立刻购买 |
申请样片 |
| XR20M1172G16-0A-EB |
|
|
|
Active |
|
|
| XR20M1172G16-0B-EB |
|
|
|
Active |
|
|
| XR20M1172G24-0A-EB |
|
|
|
Active |
|
|
| XR20M1172G24-0B-EB |
|
|
|
Active |
|
|
| XR20M1172IG16-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IG24-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IG24TR-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IL16-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IL16TR-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IL24-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172IL24TR-F |
|
-40 |
85 |
Active |
|
|
| XR20M1172L16-0A-EB |
|
|
|
Active |
|
|
| XR20M1172L16-0B-EB |
|
|
|
Active |
|
|
| XR20M1172L24-0A-EB |
|
|
|
Active |
|
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| XR20M1172L24-0B-EB |
|
|
|
Active |
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