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MAX339ETE+T

更新时间: 2024-11-14 13:10:31
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MAX339ETE+T 数据手册

 浏览型号MAX339ETE+T的Datasheet PDF文件第2页浏览型号MAX339ETE+T的Datasheet PDF文件第3页浏览型号MAX339ETE+T的Datasheet PDF文件第4页浏览型号MAX339ETE+T的Datasheet PDF文件第5页浏览型号MAX339ETE+T的Datasheet PDF文件第6页浏览型号MAX339ETE+T的Datasheet PDF文件第7页 
19-1845; Rev 1; 9/01  
2.5V, ±±5ꢀV EꢁDꢂ-rotected Rꢁꢂ232  
Transceivers for -DAs and Cell -hones  
General Description  
Features  
The MAX3388E/MAX3389E are 2.5V-powered EIA/TIA-  
232 and V.28/V.24 communications interfaces with low  
power requirements, high data-rate capabilities, and  
enhanced electrostatic discharge (ESD) protection. The  
MAX3388E/MAX3389E have two receivers and three  
transmitters. All RS-232 inputs and outputs are protected  
to ±±5ꢀV using the IEꢁ ±111-4-2 Air-ꢂap Discharge  
method, ±8ꢀV using the IEꢁ ±111-4-2 ꢁontact Discharge  
method, and ±±5ꢀV using the ꢃuman ꢄodꢅ Model.  
V Pin for Compatibility with Mixed-Voltage  
L
Systems  
Additional I/O for Hot-Sync Applications  
±±15V ꢀSꢁ Protection on ꢂx Inpꢃtsꢄ ꢅx Oꢃtpꢃtsꢄ  
LINꢄ and SWIN  
Low 300µA Sꢃpply Cꢃrrent  
Gꢃaranteed 4605bps ꢁata ꢂate  
±µA Low-Power Shꢃtdown  
In addition to the traditional RS-232 I/O, these devices have  
dedicated logic-level I/O pins for additional device-to-  
device handshaꢀing. During shutdown the logic-level I/O  
pins are active for the MAX3389E. An internal 62switch is  
provided to switch power to external circuitrꢅ or modules.  
Integrated Switch for Powering ꢂemote Circꢃitry  
Flow-ꢅhroꢃgh Pinoꢃt  
L  
Active ꢁꢃring Shꢃtdown (MAX3389ꢀ)  
OUꢅ  
A proprietarꢅ low-dropout transmitter output stage  
enables RS-232 compatible performance from a +2.35V  
to +3.1V supplꢅ with a dual charge pump. The charge  
pump requires onlꢅ four small 1.±µF capacitors for oper-  
ation from a +2.5V supplꢅ. The MAX3388E/MAX3389E  
are capable of running at data rates up to 461ꢀbps while  
maintaining RS-232-compatible output levels.  
Applications  
Subnotebooꢀ/Palmtop ꢁomputers  
PDAs and PDA ꢁradles  
ꢁell Phone Data ꢁables  
ꢄatterꢅ-Powered Equipment  
ꢃand-ꢃeld Equipment  
Peripherals  
The MAX3388E/MAX3389E have a unique V pin that  
L
allows interoperation in mixed-logic voltage sꢅstems.  
ꢄoth input and output logic levels are pin programma-  
ble through the V pin. The MAX3388E/MAX3389E are  
L
Ordering Information  
available in a space-saving TSSOP pacꢀage.  
PAꢂꢅ  
ꢅꢀMP. ꢂANGꢀ  
1°ꢁ to +71°ꢁ  
-41°ꢁ to +85°ꢁ  
1°ꢁ to +71°ꢁ  
-41°ꢁ to +85°ꢁ  
PIN-PACKAGꢀ  
24 TSSOP  
Typical Operating Circuit  
MAX3388ꢀꢁUꢂ  
MAX3388EEUꢂ  
MAX3389ꢀꢁUꢂ  
MAX3389EEUꢂ  
24 TSSOP  
+2.5V  
24  
23  
14  
24 TSSOP  
C
BYPASS  
SHDN  
V
V
L
CC  
2
6
1
3
4
5
C1+  
24 TSSOP  
V+  
V-  
C1  
0.1µF  
C3  
0.1µF  
C1-  
C2+  
MAX3388E  
MAX3389E  
-in Configuration  
C2  
0.1µF  
C4  
0.1µF  
C2-  
7
T1OUT  
T1IN  
TOP VIEW  
21  
20  
19  
C1+  
V+  
1
2
3
4
5
6
7
8
9
24 SHDN  
T2IN  
T3IN  
T2OUT  
T3OUT  
8
9
23  
V
CC  
RS-232  
I/O  
C1-  
C2+  
C2-  
V-  
22 GND  
21 T1OUT  
20 T2OUT  
19 T3OUT  
18 R1IN  
17 R2IN  
16 LIN  
V
V
L
L
13 R1OUT  
R1IN  
5kΩ  
R2IN  
18  
17  
MAX3388E  
MAX3389E  
12 R2OUT  
10 LOUT  
T1IN  
T2IN  
T3IN  
5kΩ  
LIN  
16  
15  
30kΩ  
SHDN  
LOUT 10  
15 SWIN  
11  
SWOUT 11  
R2OUT 12  
14  
V
L
SWIN  
SWOUT  
GND  
22  
=
15kV ESD PROTECTION  
13 R1OUT  
ꢁovered bꢅ U.S Patent numbers 4,636,931; 4,679,±34;  
4,777,577; 4,797,899; 4,819,±52; 4,897,774; 4,999,76±.  
ꢅSSOP  
________________________________________________________________ Maxim Integrated Products  
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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