參數資料
| 型號： | XR20M1280IL40-F |
| 廠商： | Exar Corporation |
| 文件頁數： | 1/63頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART I2C/SPI 128 BYTE 40QFN |
| 產品培訓模塊： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 標準包裝： | 490 |
| 通道數： | 1，UART |
| FIFO's： | 128 字節 |
| 規程： | RS485 |
| 電源電壓： | 1.62 V ~ 3.63 V |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調制解調器控制功能： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 40-QFN 裸露焊盤（6x6） |
| 包裝： | 托盤 |
| 其它名稱： | 1016-1385 |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
MAY 2011
REV. 1.0.0
GENERAL DESCRIPTION
The XR20M12801 (M1280) is a single-channel I2C/
SPI
Universal
Asynchronous
Receiver
and
Transmitter (UART) with integrated level shifters and
128 bytes of transmit and receive FIFOs.
For flexibility in a mixed voltage environment, the
M1280 has 4 VCC pins. There is a VCC pin for the
core, a VCC pin for the UART signals, a VCC pin for
the CPU interface signals and a VCC pin for the
GPIO signals. The VCC pins for the UART, GPIO
and I2C/SPI interface signals allow for the M1280 to
interface with devices operating at different voltage
levels eliminating the need for external voltage level
shifters. The VCC pin for the core voltage helps
lower the overall power consumption of applications
that use slower data rates.
The Auto RS-485 Half-Duplex Direction control
feature simplifies both the hardware and software for
half-duplex RS-485 applications. In addition, the
Multidrop mode with Auto Address detection and
Address
Byte
Control
features
increase
the
performance by simplifying the software routines.
The Independent TX/RX Baud Rate Generator
feature allows the transmitter and receiver to operate
at different baud rates. In addition, the Fractional
Baud Rate Generator feature provides flexibility for
crystal/clock frequencies for generating standard and
non-standard baud rates.
The M1280 has programmable transmit and receive
FIFO trigger levels, automatic hardware and software
flow control, and data rates of up to 24 Mbps. Power
consumption of the M1280 can be minimized by
enabling the sleep mode.
The M1280 has a 16550 compatible register set that
provide users with operating status and control,
receiver error indications, and modem serial interface
controls. An internal loopback capability allows
onboard diagnostics. The M1280 has a selectable
I2C/SPI bus interface.
NOTE: 1 Covered by U.S. Patent #5,649,122.
FEATURES
Integrated Level Shifters on CPU interface, UART
and GPIO signals
Selectable I2C/SPI bus interface
26MHz maximum SPI clock
24Mbps maximum UART data rate
Up to 16 GPIOs
128-Bytes TX and RX FIFOs
Programmable TX/RX trigger levels
TX/RX FIFO Level Counters
Independent TX/RX Baud Rate Generator
Fractional Baud Rate Generator
Auto RTS/CTS Hardware Flow Control
Auto XON/XOFF Software Flow Control
Auto RS-485 Half-Duplex Direction Control
Multidrop mode w/ Auto Address Detect (RX)
Multidrop mode w/ Address Byte Control (TX)
Sleep Mode with Automatic Wake-up
Infrared (IrDA 1.0 and 1.1) mode
1.62V to 3.63V supply operation
5V tolerant inputs
Crystal oscillator or external clock input
APPLICATIONS
Personal Digital Assistants (PDA)
Cellular Phones/Data Devices
Battery-Operated Devices
Global Positioning System (GPS)
Bluetooth
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| XR20M1280IL40TR-F | 功能描述:UART 接口集成電路 1Ch 12C/SPI UART w/ Lvl Shftrs & 16GPIOs RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR20M1280L24-0A-EB | 功能描述:UART 接口集成電路 EVAL F/M1280 QFN24 I2C INTERFACE RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR20M1280L24-0B-EB | 功能描述:UART 接口集成電路 EVAL F/ M1280 QFN24 SPI INTERFACE RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR20M1280L32-0A-EB | 功能描述:UART 接口集成電路 EVAL F/M1280 QFN32 I2C INTERFACE RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR20M1280L32-0B-EB | 功能描述:UART 接口集成電路 EVAL F/M1280 QFN32 SPI INTERFACE RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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