Datasheet > 驱动程序和接口 > 线路驱动器或接收器> TRS3222IDWR

TRS3222IDWR

更新时间： 2025-08-31 11:51:11

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
17页	411K
描述
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH Â±15-kV ESD PROTECTION

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TRS3222IDWR 数据手册

TRS3222

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH ±15-kV ESD PROTECTION

www.ti.com

SLLS815–JULY 2007

FEATURES

DB, DW, OR PW PACKAGE

•

RS-232 Bus-Pin ESD Protection Exceeds

(TOP VIEW)

±15 kV Using Human-Body Model (HBM)

C1+

20 PWRDOWN

•

Meets or Exceeds the Requirements of

TIA/EIA-232-F and ITU v.28 Standards

V+

C1−

C2+

C2−

GND

DOUT1

RIN1

ROUT1

•

Operates With 3-V to 5.5-V V_CCSupply

Operates up to 250 kbit/s

Two Drivers and Two Receivers

Low Standby Current . . . 1 μA Typical

External Capacitors . . . 4 × 0.1 μF

Accepts 5-V Logic Input With 3.3-V Supply

V−

DOUT2

RIN2

ROUT2

DIN1

DIN2

Alternative High-Speed Pin-Compatible Device

(1 Mbit/s)

NC − No internal connection

–

TRSF3222

APPLICATIONS

•

Battery-Powered Systems

PDAs

Notebooks

Laptops

Palmtop PCs

Hand-Held Equipment

DESCRIPTION/ORDERING INFORMATION

The TRS3222 consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD

protection pin to pin (serial-port connection pins, including GND). 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. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/μs driver

output slew rate.

The TRS3222 can be placed in the power-down mode by setting PWRDOWN low, which draws only 1 μA from

the power supply. When the device is powered down, the receivers remain active while the drivers are placed in

the high-impedance state. Also, during power down, the onboard charge pump is disabled; V+ is lowered to V_CC

and V– is raised toward GND. Receiver outputs also can be placed in the high-impedance state by setting

EN high.

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...17

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