Datasheet > EI16C554

EI16C554

更新时间： 2022-11-25 09:30:02

品牌	Logo	应用领域
IMP		/
页数	文件大小	规格书
1页	32K
描述
QUAD UART

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EI16C554 数据手册

Ei16C554

QUAD UART

Semiconductor, Inc.

FEATURES

DESCRIPTION

The Ei16C554 is Universal Asynchronous Receiver

and Transmitter with 16 byte transmit and receive

FIFO. A programmable baud rate generator is provided

to select transmit and receive clock rates from 50 Hz to

1.5MHz.

•

5V Operation

Pin to pin and functional compatible to

16C454

•

16 byte transmit FIFO

The Ei16C554 is an improved version of the Ei16C550

UART with higher operating speed and lower access

time. The Ei16C554 on board status registers provides

the error conditions, type and status of the transfer

operation being performed. Included is complete

MODEM control capability, and a processor interrupt

system that may be software tailored to the user?s

requirements. The Ei16C554 provides internal loop-

back capability for on board diagnostic testing.

16 byte receive FIFO with error flags

Modem control signals ( CTSÔ, RTSÔ,

DSRÔ, DTRÔ, RIÔ, CDÔ)

•

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

Even, odd, or no parity bit generation and

detection

•

Status report register

The Ei16C554 is fabricated in an advanced CMOS

process to achieve low drain power and high speed

requirements.

Independent transmit and receive control

TTL compatible inputs, outputs

Software compatible with 8250 and

Ei16C550

•

460.8 kHz transmit/receive operation with

7.372 MHz crystal or external clock source

Part Numbers May Be Marked With "IMP" or "Ei."

PIN CONFIGURATION

DSRD*

CTSD*

DTRD*

GND

RTSD*

INTD

CSD*

TXD

IOR*

TXC

CSC*

INTC

RTSC*

VCC

DTRC*

CTSC*

DSRA*

CTSA*

DTRA*

VCC

RTSA*

INTA

CSA*

TXA

IOW*

TXB

CSB*

INTB

RTSB*

GND

DTRB

CTSD*

DSRDÔ

CTSDÔ

DTRDÔ

GND

RTSDÔ

INTD

CSDÔ

TXD

IORÔ

TXC

CSCÔ

INTC

RTSCÔ

VCC

DTRCÔ

CTSCÔ

DSRCÔ

DSRAÔ

CTSAÔ

DTRAÔ

VCC

RTSAÔ

INTA

CSAÔ

TXA

IOWÔ

TXB

CSBÔ

INTB

RTSBÔ

GND

DTRB

CTSDÔ

DSRBÔ

Ei16C554

68-PIN PLCC

64-PIN TQFP

For additional information, contact IMP, Inc. at 408.432.9100 or visit www.impweb.com

IMP, Inc. acquired Epic products on January 26, 2001. (see press release at http://www.impweb.com/PRESS/PR012601.htm)

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