XR20M1170IG24TR-F datasheet, PDF

Datasheet> All Categories > The embedded processor and controller> Microcontrollers and processors> XR20M1170IG24TR-F

XR20M1170IG24TR-F: DescriptionI2C Bus Controller, CMOS, PDSO24,; CategoryThe embedded processor and controller Microcontrollers and processors; File Size491KB，56 Pages; ManufacturerExar; Environmental Compliance

Download Datasheet Parametric Compare View All

XR20M1170IG24TR-F Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	XR20M1170IG24TR-F	-	-	View	Buy Now

XR20M1170IG24TR-F Overview

I2C Bus Controller, CMOS, PDSO24,

XR20M1170IG24TR-F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Exar
package instruction	TSSOP, TSSOP24,.25
Reach Compliance Code	compli
JESD-30 code	R-PDSO-G24
JESD-609 code	e3
Humidity sensitivity level	1
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP24,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	1.8/3.3 V
Certification status	Not Qualified
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.635 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
uPs/uCs/peripheral integrated circuit type	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS

Preview

Download Datasheet

View All

XR20M1170

I2C/SPI UART WITH 64-BYTE FIFO

JULY 2012

REV. 1.1.0

GENERAL DESCRIPTION

The XR20M1170

(M1170) is a high performance

universal asynchronous receiver and transmitter

(UART) with 64 byte TX and RX FIFOs and a

selectable I

C/SPI slave interface. The M1170

operates from 1.62 to 3.63 volts. The enhanced

features in the M1170 include a programmable

fractional baud rate generator, an 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 M1170 is available in

the 24-pin QFN, 16-pin QFN, 24-pin TSSOP and 16-

pin TSSOP packages.

OTE

1 Covered by U.S. Patent #5,649,122

FEATURES

•

1.62 to 3.6 Volt Operation

•

Selectable I

C/SPI Interface

•

SPI clock frequency up to

■

18 MHz at 3.3 V

16 MHz at 2.5 V

8 MHz at 1.8 V

Data rate of up to

16 Mbps at 3.3 V

Data rate of up to

12.5 Mbps at 2.5 V

Data rate of up to

8 Mbps at 1.8 V

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

Control Output via RTS#

Direction

•

Full-featured UART

■

APPLICATIONS

•

Portable Appliances

•

Battery-Operated Devices

•

Cellular Data Devices

•

Factory Automation and Process Controls

■

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

•

24-QFN,

packages

IGURE

1. XR20M1170 B

LOCK

IAGRAM

16-QFN,

24-TSSOP,

16-TSSOP

VCC

1.62V – 3.63V

64 Byte

TX FIFO

UART

Regs

64 Byte

RX FIFO

RTS#

CTS#

IRQ#

SDA

SCL

A0/CS#

A1/SI

I2C/SPI#

C/SPI

Interface

GPIOs

BRG

Crystal Osc/Buffer

GPIO[7:0]

XTAL1

XTAL2

Exar

Corporation 48720 Kato Road, Fremont CA, 94538

•

(510) 668-7000

•

FAX (510) 668-7017

•

www.exar.com

XR20M1170

REV. 1.1.0

I2C/SPI UART WITH 64-BYTE FIFO

1.0 PRODUCT DESCRIPTION

The XR20M1170 (M1170) integrates a selectable I

C/SPI bus interface with an enhanced Universal

Asynchronous Receiver and Transmitter (UART). The configuration registers set is 16550 UART compatible

for control, status and data transfer. Additionally, the M1170 has 64-bytes of transmit and receive FIFOs,

automatic RTS/CTS hardware flow control, automatic Xon/Xoff and special character software flow control,

programmable transmit and receive FIFO trigger levels, infrared encoder and decoder (IrDA 1.0 and 1.1),

programmable fractional baud rate generator with a prescaler of divide by 1 or 4, and data rate up to 16 Mbps

with 4X sampling clock rate. The XR20M1170 is a 1.62V to 3.63V device. The M1170 is fabricated with an

advanced CMOS process.

Enhanced Features

The M1170 UART provides a solution that supports 64 bytes of transmit and receive FIFO memory, instead of

16 bytes in the industry standard 16C550. The M1170 is designed to work with low supply voltage and high

performance data communication systems, that require fast data processing time. Increased performance is

realized in the M1170 by the larger transmit and receive FIFOs, FIFO trigger level control and automatic flow

control mechanism. This allows the external processor to handle more networking tasks within a given time.

For example, the 16C550 with a 16 byte FIFO, unloads 16 bytes of receive data in 1.53 ms (This example uses

a character length of 11 bits, including start/stop bits at 115.2 Kbps). This means the external CPU will have to

service the receive FIFO at 1.53 ms intervals. However with the 64 byte FIFO in the M1170, the data buffer will

not require unloading/loading for 6.1 ms. This increases the service interval giving the external CPU additional

time for other applications and reducing the overall UART interrupt servicing time. In addition, the

programmable FIFO level trigger interrupt and automatic hardware/software flow control is uniquely provided

for maximum data throughput performance especially when operating in a multi-channel system. The

combination of the above greatly reduces the CPU’s bandwidth requirement, increases performance, and

reduces power consumption.

The M1170 supports a half-duplex output direction control signaling pin, RTS#, to enable and disable the

external RS-485 transceiver operation. It automatically switches the logic state of the output pin to the receive

state after the last stop-bit of the last character has been shifted out of the transmitter. After receiving, the logic

state of the output pin switches back to the transmit state when a data byte is loaded in the transmitter. The

auto RS-485 direction control pin is not activated after reset. To activate the direction control function, user has

to set EFCR bit-4 to “1”. This pin is HIGH for receive state and LOW for transmit state. The polarity of the

RTS# pin can be inverted via EFCR bit-5.

Data Rate

The M1170 is capable of operation up to 16 Mbps at 3.3V with 4X internal sampling clock rate, 8 Mbps at 3.3V

with 8X sampling clock rate, and 4 Mbps at 3.3V with 16X internal sampling clock rate. The device can operate

with an external 24 MHz crystal on pins XTAL1 and XTAL2, or external clock source of up to 64 MHz on XTAL1

pin. With a typical crystal of 14.7456 MHz and through a software option, the user can set the prescaler bit for

data rates of up to 3.68 Mbps.

The rich feature set of the M1170 is available through the internal registers. Automatic hardware/software flow

control, programmable transmit and receive FIFO trigger levels, programmable TX and RX baud rates, infrared

encoder/decoder interface, modem interface controls, and a sleep mode are all standard features.

Following a power on reset or an external reset, the M1170 is software compatible with previous generation of

UARTs, 16C450, 16C550 and 16C2550.

XR20M1170IG24TR-F Related Products

	XR20M1170IG24TR-F	XR20M1170IL28-F	XR20M1170IL16-F	XR20M1170IG24-F	XR20M1170IG16	XR20M1170IG24
Description	I2C Bus Controller, CMOS, PDSO24,	I2C Bus Controller, 8 Channel(s), 2MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, GREEN, QFN-28	I2C Bus Controller, 8 Channel(s), 2MBps, CMOS, 4 X 4 MM, 0.90 MM HEIGHT, 0.65 MM PITCH, GREEN, QFN-16	I2C Bus Controller, 8 Channel(s), 2MBps, CMOS, PDSO24, 4.40 MM, GREEN, TSSOP-24	I2C Bus Controller, 8 Channel(s), 2MBps, CMOS, PDSO16, 4.40 MM, TSSOP-16	I2C Bus Controller, 8 Channel(s), 2MBps, CMOS, PDSO24, 4.40 MM, TSSOP-24
Is it Rohs certified?	conform to	conform to	conform to	conform to	incompatible	incompatible
package instruction	TSSOP, TSSOP24,.25	VQCCN, LCC28,.2SQ,20	VQCCN, LCC16,.16SQ,25	TSSOP, TSSOP24,.25	TSSOP, TSSOP16,.25	TSSOP, TSSOP24,.25
Reach Compliance Code	compli	unknown	compliant	compliant	unknow	unknow
JESD-30 code	R-PDSO-G24	S-XQCC-N28	S-XQCC-N16	R-PDSO-G24	R-PDSO-G16	R-PDSO-G24
Number of terminals	24	28	16	24	16	24
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	VQCCN	VQCCN	TSSOP	TSSOP	TSSOP
Encapsulate equivalent code	TSSOP24,.25	LCC28,.2SQ,20	LCC16,.16SQ,25	TSSOP24,.25	TSSOP16,.25	TSSOP24,.25
Package shape	RECTANGULAR	SQUARE	SQUARE	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	CHIP CARRIER, VERY THIN PROFILE	CHIP CARRIER, VERY THIN PROFILE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260	260	225	225
power supply	1.8/3.3 V	1.8/3.3 V	1.8/3.3 V	1.8/3.3 V	1.8/3.3 V	1.8/3.3 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
surface mount	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	NO LEAD	NO LEAD	GULL WING	GULL WING	GULL WING
Terminal pitch	0.635 mm	0.5 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	DUAL	QUAD	QUAD	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	40	40	40	NOT SPECIFIED	NOT SPECIFIED
uPs/uCs/peripheral integrated circuit type	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS	SERIAL IO/COMMUNICATION CONTROLLER, I2C BUS
Maker	Exar	-	Exar	Exar	Exar	Exar
JESD-609 code	e3	e3	e3	e3	-	-
Humidity sensitivity level	1	-	3	1	1	1
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	MATTE TIN (SN)	Matte Tin (Sn)	-	-
Parts packaging code	-	QFN	QFN	TSSOP	TSSOP	TSSOP
Contacts	-	28	16	24	16	24
boundary scan	-	NO	NO	NO	NO	NO
maximum clock frequency	-	24 MHz	24 MHz	24 MHz	24 MHz	24 MHz
letter of agreement	-	I2C	I2C	I2C	I2C	I2C
Maximum data transfer rate	-	2 MBps	2 MBps	2 MBps	2 MBps	2 MBps
length	-	5 mm	4 mm	7.8 mm	5 mm	7.8 mm
low power mode	-	NO	NO	NO	NO	NO
Number of serial I/Os	-	8	8	8	8	8
Maximum seat height	-	1 mm	1 mm	1.2 mm	1.2 mm	1.2 mm
Maximum supply voltage	-	3.63 V	3.63 V	3.63 V	3.63 V	3.63 V
Minimum supply voltage	-	1.62 V	1.62 V	1.62 V	1.62 V	1.62 V
Nominal supply voltage	-	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
width	-	5 mm	4 mm	4.4 mm	4.4 mm	4.4 mm

Recommended Resources

MAX8630Y/ MAX8630Z driving white LED circuit diagram

Dual 12bit A-D converter chip AD10242 internal structure block diagram

Integrated circuit adjustable thermostat circuit diagram

Half-duplex circuit current loop multi-machine communication interface circuit

DT8 type 5A current mutual induction three-phase four-wire active energy meter wiring

820e computer motherboard circuit diagram_01

Enhanced performance 100-bit gate driver improves efficiency of advanced communications power modules: Abstract Communications applications use power modules based on half-bridge, full-bridge, or synchronous buck power topologies. These topologies use high-performance half-bridge drivers to achieve hig...; alan000345 TI Technology Forum

[liklon plays with GD32F350] VI. General timer TIMER1: GD32 has rich timer resources. The following uses only the basic functions of the timer. Let's try a general timer, timer1.Use timer1 to make a 1s trigger interrupt function. First look at the clock o...; liklon GD32 MCU

China's mobile TV trial broadcast in Henan this month has uncertain market prospects: Starting this month, mobile phone users in Henan Province who use China Mobile's communication network can watch TV on their mobile phones. Users can watch and listen to TV and radio programs from Hen...; JasonYoo RF/Wirelessly

The rapid entry of UWB centimeter-level positioning solutions has brought strong momentum to indoor positioning: With the combination of location-based services and mobile Internet, the emerging indoor positioning solutions have become ubiquitous. However, from the perspective of application requirements, only h...; fish001 RF/Wirelessly

[ST NUCLEO-H743ZI Review] (1) SPI DMA flashing TFT screen: [i=s]This post was last edited by supermiao123 on 2019-2-21 09:20[/i] Hello everyone, I am very happy to participate in this evaluation. Thank you ST and EEW for providing the evaluation opportunity. ...; supermiao123 stm32/stm8

Has anyone used the tlc5955 chip? (self-autification.jpg): Now I am using 32 to connect to TLC5955. SPI communication. According to the data sheet, there is a general register (769-bit shift register) in TLC5955 to communicate with the outside. Then I can rea...; osiris00 TI Technology Forum

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components