Datasheet > 驱动程序和接口 > 线路驱动器或接收器> MAX3218*

MAX3218*

更新时间： 2024-11-23 23:46:07

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
12页	125K
描述
1µ.A.1.8V to 4.25V RS-232 Transceiver with AutoShutdown™.

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中文翻译

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数据手册

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MAX3218* 数据手册

19-0380; Rev 0; 3/95

1 µA S u p p ly Cu rre n t , 1 .8 V t o 4 .2 5 V-P o w e re d

RS -2 3 2 Tra n s c e ive r w it h Au t o S h u t d o w n ™

MAX3218*

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

BETTER THAN BIPOLAR!

The MAX3218 RS-232 transceiver is intended for bat-

tery-powered EIA/TIA-232E and V.28/V.24 communica-

tions interfaces that need two drivers and two receivers

with minimum power consumption from a single low-

voltage supply. It provides a wide +1.8V to +4.25V

operating voltage range while maintaining true RS-232

and EIA/TIA-562 voltage levels. The MAX3218 runs

from two alkaline, NiCd, or NiMH cells without any form

of voltage regulator. A guaranteed 120kbps data rate

provides compatibility with popular software for com-

municating with personal computers.

♦ 1µA Supply Current Using AutoShutdown™

♦ Operates Directly from Two Alkaline,

NiCd or NiMH Cells

♦ +1.8V to +4.25V Single-Supply Voltage Range

♦ 120kbps Data Rate Guaranteed

♦ Low-Cost Surface-Mount Components

♦ Meets EIA/TIA-232E Specifications

♦ Three-State Receiver Outputs

♦ Flow-Through Pinout

Supply current is reduced to 1µA with Maxim’s new

AutoShutdown™ feature. When the MAX3218 does not

sense a valid signal level on the receiver inputs, the on-

b oa rd p owe r-s up p ly a nd d rive rs s hut d own. This

occurs if the RS-232 cable is disconnected or if the

transmitters of the connected peripheral are turned off.

The system turns on again when a valid level is applied

to either RS-232 receiver input. As a result, the system

saves power without changes to the existing software.

Additionally, the MAX3218 can be forced into or out of

shutdown, under logic control.

♦ On-Board DC-DC Converters

♦ 20-Pin SSOP and DIP Packages

______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

20 Plastic DIP

20 SSOP

MAX3218CPP

MAX3218CAP

MAX3218C/D

MAX3218EPP

MAX3218EAP

While shut down, all receivers can remain active or can

be disabled under logic control, permitting a system

incorporating the CMOS MAX3218 to monitor external

devices while in low-power shutdown. Three-state dri-

vers are provided on both receiver outputs so that multi-

ple receivers, generally of different interface standards,

can be on the same bus. The MAX3218 is available in

20-pin DIP and SSOP packages.

Dice^†

20 Plastic DIP

20 SSOP

† Contact factory for dice specifications.

__________________P in Co n fig u ra t io n

________________________Ap p lic a t io n s

Battery-Powered Equipment

Subnotebook Computers

PDAs

TOP VIEW

GND

V+

INVALID

Hand-Held Equipment

Peripherals

C1+

FORCEON

FORCEOFF

GND

C1-

Cellular Phones

MAX3218

GND

V-

T1IN

T2IN

T1OUT

T2OUT

R1IN

R2IN

R1OUT

R2OUT

* Patent Pending

™ AutoShutdown is a trademark of Maxim Integrated Products.

DIP/SSOP

________________________________________________________________ Maxim Integrated Products

Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .

12 3 4 5 6 7...12

中文翻译

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与MAX3218*相关器件

型号	品牌	获取价格	描述	数据表
MAX3218_V01	MAXIM	获取价格	1Î¼A Supply Current, 1.8V to 4.25V-Powered RS
MAX3218C/D	MAXIM	获取价格	1レA Supply Current, 1.8V to 4.25V-Powered RS-
MAX3218CAP	MAXIM	获取价格	1レA Supply Current, 1.8V to 4.25V-Powered RS-
MAX3218CAP+	MAXIM	获取价格	Line Transceiver, 1 Func, 2 Driver, 2 Rcvr, CMOS, PDSO20, SSOP-20
MAX3218CPP	MAXIM	获取价格	1レA Supply Current, 1.8V to 4.25V-Powered RS-
MAX3218CPP+	MAXIM	获取价格	1Î¼A Supply Current, 1.8V to 4.25V-Powered RS
MAX3218CWP	MAXIM	获取价格	Line Transceiver, 1 Func, 2 Driver, 2 Rcvr, CMOS, PDSO20, 0.300 INCH, SO-20
MAX3218CWP	ROCHESTER	获取价格	LINE TRANSCEIVER, PDSO20, 0.300 INCH, SO-20
MAX3218CWP+	MAXIM	获取价格	Line Transceiver, 1 Func, 2 Driver, 2 Rcvr, CMOS, PDSO20, 0.300 INCH, SO-20
MAX3218CWP+T	MAXIM	获取价格	Line Transceiver, 1 Func, 2 Driver, 2 Rcvr, CMOS, PDSO20, 0.300 INCH, SO-20

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