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| 型号： | MAX3212CAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC TXRX 3DRVR 5RX 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 3/5 |
| 规程： | RS232 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 1405 (CN2011-ZH PDF) |
_______________General Description
The MAX3212 uses Maxim’s new proprietary Auto-
Shutdown mode to reduce supply current to 1A. 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 1 A 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.
________________________Applications
Notebook and Palmtop Computers
Peripherals
Instruments
Battery-Powered Equipment
______________Ordering Information
____________________________Features
BETTER THAN BIPOLAR!
o
1A 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
MAX3212
*
+2.7V to +3.6V-Powered, 1A Supply Current,
3-Driver/5-Receiver, True RS-232 Transceiver
________________________________________________________________
Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
PART
MAX3212CWI
MAX3212CAI
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
28 Wide SO
28 SSOP
MAX3212EWI
MAX3212EAI
-40°C to +85°C
28 Wide SO
28 SSOP
Pin Configuration appears at end of data sheet.
* ng
__________Typical Operating Circuit
R1
R1IN
R2
R2IN
R3
R3IN
R4
R4IN
R5
R5IN
R5
EN
GND
T3
T2
T1
T3OUT
T2OUT
T1OUT
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
R5OUTB
T3IN
T2IN
T1IN
VCC
26
25
5
6
+3.0V
0.33F
0.68F 1N6050
1N6050
15H
0.33F
V+
LN
LP
V-
FORCEON
TRAN
INVALID
FORCEOFF
5k
MAX3212
327
1
2
16
13
14
15
8
9
10
11
12
7
19
18
17
24
23
22
21
20
28
4
+3.0V
AUTOSHUTDOWN OPERATION
FORCEOFF = HIGH, FORCEON = LOW
RS-232 Present
Yes
No
Status
On
Shut Down
19-0312; Rev 0; 9/94
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3212CAI+ | 功能描述:RS-232接口集成电路 2.7-3.6V 1uA 3-Drvr 5-Receiver Tsvr RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3212CAI+T | 功能描述:RS-232接口集成电路 2.7-3.6V 1uA 3-Drvr 5-Receiver Tsvr RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3212CAI-T | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3212CWI | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3212CWI+T | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
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