Datasheet > XR16M2752

XR16M2752

更新时间： 2024-11-22 04:23:31

品牌	Logo	应用领域
艾科嘉 - EXAR		先进先出芯片
页数	文件大小	规格书
52页	1108K
描述
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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XR16M2752 数据手册

XR16M2752

HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

JUNE 2007

REV. P1.0.0

FEATURES

GENERAL DESCRIPTION

• 1.62 to 3.6 Volt Operation

The XR16M2752 (M2752) is a high performance

dual universal asynchronous receiver and transmitter

(UART) with 64 byte TX and RX FIFOs. The device

operates from 1.62 to 3.6 volts and is pin-to-pin

compatible to Exar’s ST16C2552, XR16L2552,

XR16L2752 and XR16V2752. The M2752 register set

is identical to the XR16V2752 and is compatible to

the ST16C2552 and the XR16C2852 enhanced

features. It supports the Exar’s enhanced features of

programmable FIFO trigger level and FIFO level

counters, automatic hardware (RTS/CTS) and

software flow control, automatic RS-485 half duplex

direction control output and a complete modem

interface. Onboard registers provide the user with

operational status and data error flags. An internal

loopback capability allows system diagnostics.

Independent programmable baud rate generators are

provided in each channel to select data rates up to 8

Mbps at 3.3 Volt and 8X sampling clock. The M2752

is available in 44-pin PLCC and 32-pin QFN

packages.

• Pin-to-pin compatible to Exar’s XR16L2752

• Two independent UART channels

■ Register set compatible to XR16L2752

■ Data rate of up to 8 Mbps at 3.3 V, 6.25 Mbps

at 2.5 V and 4 Mbps at 1.8 V with 8X sampling

rate

■ Fractional Baud Rate Generator

■ Transmit and Receive FIFOs of 64 bytes

■ Programmable TX and RX FIFO Trigger Levels

■ Transmit and Receive FIFO Level Counters

■ Automatic Hardware (RTS/CTS) Flow Control

■ Selectable Auto RTS Flow Control Hysteresis

■ Automatic Software (Xon/Xoff) Flow Control

■ Automatic RS-485 Half-duplex Direction

Control Output via RTS#

■ Wireless Infrared (IrDA 1.0) Encoder/Decoder

■ Automatic sleep mode

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

■ Full modem interface

APPLICATIONS

• Alternate Function Register

• Portable Appliances

• Device Identification and Revision

• Crystal oscillator or external clock input

• Telecommunication Network Routers

• Ethernet Network Routers

• Crystal oscillator (up to 32MHz) or external clock

(up to 64MHz) input

• Cellular Data Devices

• 44-PLCC and 32-QFN packages

• Factory Automation and Process Controls

FIGURE 1. XR16M2752 BLOCK DIAGRAM

1.62 V to 3.6 V VCC

GND

A2:A0

D7:D0

IOR#

UART Channel A

IOW#

CS#

CHSEL

TXA (or TXIRA)

64 Byte TX FIFO

UART

Regs

TX & RX

ENDEC

INTA

INTB

BRG

64 Byte RX FIFO

RXA (or RXIRA)

8-bit Data

TXRDYA#

Bus

TXRDYB#

TXB (or TXIRB)

RXB (or RXIRB)

UART Channel B

(same as Channel A)

Interface

MFA#

(OP2A#,

BAUDOUTA#, or

RXRDYA#)

XTAL1

XTAL2

Crystal Osc/Buffer

MFB#

(OP2B#,

BAUDOUTB#, or

RXRDYB#)

CTS#A/B, RI#A/B,

CD#A/B, DSR#A/B

Modem Control Logic

Reset

DTR#A/B, RTS#A/B

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...52

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与XR16M2752相关器件

型号	品牌	获取价格	描述	数据表
XR16M2752_07	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IJ44	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IJ44-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 1MBps, CMOS, PQCC44, GREEN, PLASTIC, LCC-44
XR16M2752IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IL32-F	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M554	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554D	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554DIV64	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
XR16M554DIV64-F	EXAR	获取价格	Serial I/O Controller, CMOS, PQFP64,
XR16M554IJ68	EXAR	获取价格	1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO

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