 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
XR20M1280IL24TR-F Datasheet(PDF) 4 Page - Exar Corporation |
|
||||||||||||||||||||||||||||||
XR20M1280IL24TR-F Datasheet(HTML) 4 Page - Exar Corporation |
|
|
4 / 63 page  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 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 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 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 6 OD Interrupt output (open-drain, active LOW). A0 (CS#) 6 8 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 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 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). |
Similar Part No. - XR20M1280IL24TR-F |
|
Similar Description - XR20M1280IL24TR-F |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
