Datasheet > ST16C1451IJ28

ST16C1451IJ28

更新时间： 2024-02-26 21:01:27

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
32页	335K
描述
2.97V TO 5.5V UART

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数据手册

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ST16C1451IJ28 数据手册

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ST16C1450/51

2.97V TO 5.5V UART

REV. 4.2.0

OCTOBER 2003

FEATURES

GENERAL DESCRIPTION

• Pin and functionally compatible to SSI 73M1550/

The ST16C1450, ST16C1451 series (here on

denoted as the 145X) is a universal asynchronous

receiver and transmitter (UART). The 145X is foot

print compatible to the SSI 73M1550 and SSI

73M2550 UART with one byte FIFO and higher

operating speed and lower access time. The 145X

provides enhanced UART functions with a modem

control interface, independent programmable baud

rate generators with clock rates to 1.5 Mbps. Onboard

status registers provide the user with error indications

and operational status. System interrupts and modem

control features may be tailored by external software

to meet specific user requirements. An internal loop-

back capability allows onboard diagnostics. The 145X

is available in a 28-pin PLCC/plastic-DIP, 48-pin

TQFP packages. The Baud rate generator can be

configured for either crystal or external clock input

with the exception of the 28 pin 1451 package. An

external clock must be provided for the 28 pin 1451

package. Each package type, with the exception of

the 28 pin 1450, provides a buffered reset output that

can be controlled through user software. The 145X is

fabricated in an advanced CMOS process to achieve

low drain power and high speed requirements. The

ST16C145X is not compatible with the industry

standard 16450 and will not work with the standard

serial port driver in MS Windows (see pages 15-16 for

details). For a MS Windows compatible UART, see

the ST16C450.

2550

• 1 byte Transmit FIFO (THR)

• 1 byte Receive FIFO with error tags (RHR)

• Four levels of prioritized interrupts

• Modem Control Signals (CTS#, RTS#, DSR#,

DTR#, RI#, CD#)

• Programmable character lengths (5, 6, 7, 8) with

even, odd or no parity

• Crystal or external clock input (except 28 pin

ST16C1451, external clock only)

• 1.5 Mbps Transmit/Receive operation (24 MHz)

with programmable clock control

• Power Down Mode (50 uA at 3.3 V, 200 uA at 5 V)

• Software controllable reset output

• 2.97 to 5.5 Volt operation

APPLICATIONS

• Battery Operated Electronics

• Internet Appliances

• Handheld Terminal

• Personal Digital Assistants

• Cellular Phones DataPort

FIGURE 1. BLOCK DIAGRAM

THR

A2:A0

D7:D0

IOR#

Transmitter

DTR#, RTS#

IOW#

CS#

UART

Configuration

Regs

Modem Control Signals

DSR#, CTS#,

CD#, RI#

Data Bus

Interface

Receiver

RHR

INT

Baud Rate Generator

Crystal Osc/Buffer

RESET

RST

XTAL1/CLK

XTAL2

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

12 3 4 5 6 7...32

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与ST16C1451IJ28相关器件

型号	品牌	获取价格	描述	数据表
ST16C1451IP28	EXAR	获取价格	2.97V TO 5.5V UART
ST16C1451IQ48	EXAR	获取价格	2.97V TO 5.5V UART
ST16C1550	EXAR	获取价格	2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1550_05	EXAR	获取价格	2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1550CJ28	EXAR	获取价格	2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1550CJ28-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.1875MBps, CMOS, PQCC28, GREEN, PLASTIC, LCC-28
ST16C1550CP28	EXAR	获取价格	2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1550CQ48	EXAR	获取价格	2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1550CQ48-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.1875MBps, CMOS, PQFP48, 7 X 7 MM, 1 MM HEIGHT, GREE
ST16C1550CQ48TR-F	EXAR	获取价格	Serial I/O Controller, 1 Channel(s), 0.1875MBps, CMOS, PQFP48, TQFP-48

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