Datasheet > XR16V2752

XR16V2752

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
51页	1102K
描述
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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XR16V2752 数据手册

PRELIMINARY

XR16V2752

HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

JUNE 2006

REV. P1.0.0

FEATURES

GENERAL DESCRIPTION

• 2.25 to 3.6 Volt Operation

The XR16V2752 (V2752) is a high performance dual

universal asynchronous receiver and transmitter

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

operates from 2.25 to 3.6 volts with 5 Volt tolerant

inputs and is pin-to-pin compatible to Exar’s

ST16C2552, XR16L2552 and XR16L2752. The

V2752 register set is identical to the XR16L2752 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

• 5 Volt Tolerant Inputs

• 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 at 3.3 V, and

6.25 Mbps at 2.5 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

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 V2752 is available in 44-pin PLCC and 32-

pin QFN packages.

■ 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

• Device Identification and Revision

• Crystal oscillator or external clock input

• Portable Appliances

• Telecommunication Network Routers

• Ethernet Network Routers

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

• Cellular Data Devices

(up to 64MHz) input

• Factory Automation and Process Controls

• 44-PLCC and 32-QFN packages

FIGURE 1. XR16V2752 BLOCK DIAGRAM

2.25 V to 3.6 V VCC

*5 Volt Tolerant Inputs

(Except External Clock Input)

A2:A0

D7:D0

IOR#

GND

UART Channel A

IOW#

CS#

CHSEL

TXA (or TXIRA)

64 Byte TX FIFO

UART

Regs

ENDEC

TX & RX

INTA

INTB

BRG

64 Byte RX FIFO

RXA (or RXIRA)

8-bit Data

TXRDYA#

Bus

TXRDYB#

Interface

TXB (or TXIRB)

RXB (or RXIRB)

UART Channel B

(same as Channel A)

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

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与XR16V2752相关器件

型号	品牌	获取价格	描述	数据表
XR16V2752_07	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2752IJ	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V2752IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16V554	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554_07	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554D	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554DIV	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
XR16V554DIV-0A-EB	EXAR	获取价格	EVAL BOARD FOR XR16V554D 64LQFP
XR16V554DIVTR-F	EXAR	获取价格	IC UART FIFO 16B QUAD 64LQFP
XR16V554IJ	EXAR	获取价格	2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO

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