Datasheet > XR16M752

XR16M752

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	1192K
描述
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

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XR16M752 数据手册

XR16M752/XR68M752

HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

REV. 1.0.2

MAY 2007

FEATURES

GENERAL DESCRIPTION

• 1.62 to 3.6 Volt Operation

The XR16M752/XR68M752 (M752) is a high

performance dual universal asynchronous receiver

and transmitter (UART) with 64 byte TX and RX

FIFOs. The M752 operates from 1.62 to 3.63 volts. It

is pin-to-pin and software compatible to the

TL16C752B and SC16C752B, but with additional

features such as a programmable fractional baud rate

generator, automatic RS-485 half-duplex direction

control, infrared mode and 8X and 4X sampling rate.

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. Each channel is independently

programmable for data rates up to 16 Mbps at 3.3

Volt with a 4X sampling rate. The XR68M752 has an

additional 16/68# pin to select between the Intel and

Motorola bus interface. The M752 is available in the

48-pin TQFP and 32-pin QFN packages.

• Pin-to-pin and software compatible to TI’s

TL16C752B and Philips’ SC16C752B in the 48-

TQFP package

• Two independent UART channels

■ 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

■ Data sampling rates of 16X, 8X and 4X

■ Transmit and Receive FIFOs of 64 bytes

■ Programmable 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 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

APPLICATIONS

■ Full modem interface

• Portable Appliances

• Crystal oscillator (up to 24MHz) or external clock

(up to 64MHz) input

• Telecommunication Network Routers

• Ethernet Network Routers

• 48-TQFP and 32-QFN packages

• Cellular Data Devices

• Factory Automation and Process Controls

FIGURE 1. XR16M752 BLOCK DIAGRAM

1.62 to 3.63 Volt VCC

A2:A0

D7:D0

GND

IOR# (NC)

IOW# (R/W#)

UART Channel A

TXA, RXA, DTRA#,

64 Byte TX FIFO

CSA# (CS#)

CSB# (A3)

UART

Regs

DSRA#, RTSA#,

DTSA#, CDA#, RIA#,

OP2A#

TX & RX

ENDEC

8-bit Data

Bus

Interface

INTA (IRQ#)

INTB (NC)

BRG

64 Byte RX FIFO

TXRDYA#

TXRDYB#

RXRDYA#

RXRDYB#

TXB, RXB, DTRB#,

DSRB#, RTSB#,

CTSB#, CDB#, RIB#,

OP2B#

UART Channel B

(same as Channel A)

Reset/Reset#

16/68#

XTAL1

XTAL2

Crystal Osc/Buffer

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

12 3 4 5 6 7...51

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与XR16M752相关器件

型号	品牌	获取价格	描述	数据表
XR16M752_09	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M752IL32	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M752IL32-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 2MBps, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, GREEN, QFN-32
XR16M752IL32TR-F	EXAR	获取价格	IC UART FIFO 64B DUAL 32QFN
XR16M752IM48	EXAR	获取价格	HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M752IM48-F	EXAR	获取价格	Serial I/O Controller, 2 Channel(s), 2MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREEN, TQ
XR16M770	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
XR16M770IB25	EXAR	获取价格	1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
XR16M770IB25-0C-EB	EXAR	获取价格	EVAL BOARD FOR XR16M770-C 25BGA,
XR16M770IB25-F	EXAR	获取价格	Serial I/O Controller, CMOS, PBGA25

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