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| 型号： | MAX3221EIPWRG4 |
| 厂商： | Texas Instruments |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC RS232 3V-5.5V DRVR 16-TSSOP |
| 标准包装： | 2,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
www.ti.com
FEATURES
APPLICATIONS
DB OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
EN
C1+
V+
C1
C2+
C2
V
RIN
FORCEOFF
VCC
GND
DOUT
FORCEON
DIN
INVALID
ROUT
DESCRIPTION/ORDERING INFORMATION
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH 15-kV IEC ESD PROTECTION
SLLS686A – OCTOBER 2005 – REVISED MAY 2006
Battery-Powered, Hand-Held, and Portable
ESD Protection for RS-232 Pins
Equipment
–
±15 kV Human-Body Model (HBM)
PDAs and Palmtop PCs
–
±8 kV (IEC 61000-4-2, Contact Discharge)
Notebooks, Subnotebooks, and Laptops
–
±15 kV (IEC 61000-4-2, Air-Gap Discharge)
Digital Cameras
Meets or Exceeds the Requirements of
Mobile Phones and Wireless Devices
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V VCC Supply
Operates up to 250 kbit/s
One Driver and One Receiver
Low Standby Current . . . 1
A Typ
External Capacitors . . . 4
× 0.1 F
Accepts 5-V Logic Input With 3.3-V Supply
Alternative High-Speed Pin-Compatible
Device (1 Mbit/s)
– SN75C3221E and SN65C3221E
Auto-Powerdown Feature Automatically
Disables Drivers for Power Savings
The MAX3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The
RS-232 pins provide IEC G1000-4-2 ESD Protection. The device meets the requirements of TIA/EIA-232-F and
provides the electrical interface between an asynchronous communication controller and the serial-port
connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V
supply. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/
s driver output
slew rate.
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled.
If FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is
reduced to 1
A. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown
condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With
auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver
input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high
(valid data) if the receiver input voltage is greater than 2.7 V or less than –2.7 V, or has been between –0.3 V
and 0.3 V for less than 30
s. INVALID is low (invalid data) if the receiver input voltage is between –0.3 V and
0.3 V for more than 30
s. Refer to Figure 5 for receiver input levels.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2005–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3221EUE | 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: |
| MAX3221EUE+ | 功能描述:RS-232接口集成电路 1uA 3-5.5V Tcvr w/AutoShutdown 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: |
| MAX3221EUE+T | 功能描述:RS-232接口集成电路 1uA 3-5.5V Tcvr w/AutoShutdown 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: |
| MAX3221EUE-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: |
| MAX3221IDB | 功能描述:RS-232接口集成电路 3-5.5V Single-Ch Line Drvr/Rcvr 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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