參數(shù)資料
型號： MAX3212
廠商： Maxim Integrated Products, Inc.
英文描述： +2.7V H106to +3.6V-Powered, G106E1043-Driver/5-Receiver, True RS-232 F105Transceiver(2.7~3.6V，自動關(guān)閉方式，235kbps，RS-232收發(fā)器)
中文描述： +2.7V至+3.6V供電、1µA電源電流、3驅(qū)動器/5接收器、真RS-232收發(fā)器
文件頁數(shù)： 1/12頁
文件大?。?/td> 122K
代理商： MAX3212
_______________General Desc ription
The MAX3212 uses Maxim’s new proprietary Auto-
Shutdown mode to reduce supply current to 1μA. The
MAX3212, with 3 RS-232 drivers and 5 RS-232 receivers,
is intended for 2.7V to 3.6V-powered EIA/TIA-232E and
V.28/V.24 serial interface. True RS-232 levels are main-
tained across the operating range. A guaranteed data
rate of 235kbps provides compatibility with popular soft-
ware for communicating with personal computers.
Supply current is reduced to 1μA with Maxim’s new
AutoShutdown feature. When the MAX3212 does not
sense a valid signal level on the receiver inputs, the on-
board power supply and drivers shut down. This occurs
if the RS-232 cable is disconnected or if the transmit-
ters of the connected peripheral are turned off. The sys-
tem turns on again when a valid level is applied to any
RS-232 receiver input. As a result, the system saves
power without changes to the existing software.
A second power-management feature is incorporated to
permit automatic shutdown when the RS-232 connection
is valid but inactive. In this case, a transition detector
facilitates shutdown when the receivers are presented
with stationary RS-232 levels for long periods.
Three-state drivers are provided on receiver outputs so
that multiple receivers, generally of different interface
standards, can be wire-ORed at the UART. The
MAX3212 is available in 28-pin SO and SSOP packages.
________________________Applic ations
Notebook and Palmtop Computers
Peripherals
Instruments
Battery-Powered Equipment
______________Ordering Information
____________________________Features
BETTER THAN BIPOLAR!
o
1μA Supply Current Using AutoShutdown
o
Operates from Single +2.7V to +3.6V Supply
o
28-Pin SSOP or Wide SO Packages
o
Meets All EIA/TIA-232E & EIA/TIA-562 Specifications
o
Mouse Driveability–Guaranteed
o
Low-Cost, Surface-Mount External Components
o
235kbps Guaranteed Data Rate–
LapLink Compatible
o
+5V Logic Compatible
o
Complementary Receiver Output Always Active
o
Flow-Through Pinout
__________Typic al Operating Circ uit
M
+2.7V to +3.6V-Powered, 1μA S upply Current,
3-Driver/5-Rec eiver, True RS -232 Transc eiver
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
PART
MAX3212CWI
MAX3212CAI
MAX3212EWI
MAX3212EAI
0°C to +70°C
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
28 Wide SO
28 SSOP
28 Wide SO
28 SSOP
-40°C to +85°C
Pin Configuration appears at end of data sheet.
*Patent pending
R1
R1IN
R2
R2IN
R3
R3IN
R4
R4IN
R5
R5IN
R5
EN
4
GND
28
T3
T2
T1
T3OUT
T2OUT
T1OUT
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
R5OUTB
T3IN
T2IN
T1IN
V
CC
26
25
5
6
+3.0V
0.33μF
0.68μF 1N6050
1N6050
15μH
0.33μF
V+
LN
LP
V-
FORCEON
TRAN
INVALID
FORCEOFF
5k
5k
5k
5k
5k
MAX3212
3
27
1
2
16
13
14
15
8
9
10
11
12
7
19
18
17
24
23
22
21
20
+3.0V
+3.0V
AUTOSHUTDOWN OPERATION
FORCEOFF = HIGH, FORCEON = LOW
RS-232 Present
Yes
No
Status
On
Shut Down
19-0312; Rev 0; 9/94
相關(guān)PDF資料
PDF描述
MAX3212EAI 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
MAX3212* +2.7V to +3.6V Powered.1&#181.A Supply Current.3-Driver/5-Receiver.True RS-232 Transceiver
MAX3218CAP 1レA Supply Current, 1.8V to 4.25V-Powered RS-232 Transceiver with AutoShutdown⑩
MAX3218 1.8V to 4.25V-Powered RS-232 Transceiver with AutoShutdown(1.8~4.25V,自動關(guān)閉方式，120kbps，RS-232收發(fā)器)
MAX3218CPP 1レA Supply Current, 1.8V to 4.25V-Powered RS-232 Transceiver with AutoShutdown⑩
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3212CAI 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3212CAI+ 功能描述:RS-232接口集成電路 2.7-3.6V 1uA 3-Drvr 5-Receiver Tsvr RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3212CAI+T 功能描述:RS-232接口集成電路 2.7-3.6V 1uA 3-Drvr 5-Receiver Tsvr RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3212CAI-T 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
MAX3212CWI 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
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