Datasheet > ST162552

ST162552

更新时间： 2024-01-05 16:37:36

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
28页	119K
描述
DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs

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ST162552 数据手册

ST16C2552

STARTECH

Printed December 17, 1996

Company

DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs

DESCRIPTION

PLCC Package

The ST16C2552 is a dual asynchronous receiver and

transmitter with 16 byte transmit and receive FIFOs.

Independent programmable baud rate generators are

provided to select transmit and receive clock rates

from 50Hz to 1.5 MHz for each UART.

The on board status registers of the ST16C2552

provide the error conditions, type and status of the

transfer operation being performed. Complete MO-

DEM control capability and a processor interrupt

system that may be software tailored to the user’s

requirements are included. The ST16C2552 provides

internal loop-back capability for on board diagnostic

testing.

RXA

38 TXA

37 DTRA*

36 RTSA*

A0 10

XTAL1 11

GND 12

XTAL2 13

A1 14

MFA*

34 INTA

ST16C2552CJ44

33 VCC

32 TXRDYB*

A2 15

RIB*

CHSEL 16

INTB 17

30 CDB*

Signalling for DMA transfers is done through two pins

per channel ( TXRDY*, RXRDY* ). The RXRDY*

function is multiplexed on one pin with the OP2* and

BAUDOUT functions. CPU can select these functions

through the Alternate Function Register.

29 DSRB*

The ST16C2552 is fabricated in an advanced 0.6m

CMOS process to achieve low power and high speed

requirements.

FEATURES

· Pin to pin and functional compatible to National

NS16C552

· 16 byte transmit FIFO

N.C.

RXA

· 16 byte receive FIFO with error flags

· Modem control signals (CTS*, RTS*, DSR*, DTR*,

RI*, CD*)

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

· Even, odd, ornoparitybitgenerationanddetection

· Status report register

TXA

DTRA*

RTSA*

MFA*

INTA

XTAL1

GND

XTAL2

ST16C2552CQ48

VCC

· TTL compatible inputs, outputs

TXRDYB*

RIB*

· Independent transmit and receive control

· Software compatible with INS8250, NS16C550

· 460.8 kHz transmit/receive operation with 7.372

MHz crystal or external clock source

CDB*

DSRB*

N.C.

CHSEL

INTB

ORDERING INFORMATION

Partnumber

Package

PLCC

Operating temperature

0° C to + 70° C

-40° C to + 85° C

ST16C2552CJ44

ST16C2552IJ44

Rev. 2.0

3-135

12 3 4 5 6 7...28

中文翻译

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