TRS3253EMRSMEP

更新时间： 2024-11-20 13:14:55

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TRS3253EMRSMEP 数据手册

TRS3253E

www.ti.com .............................................................................................................................................. SLLS850A–JANUARY 2008–REVISED OCTOBER 2008

RS-232 TRANSCEIVER WITH SPLIT SUPPLY PIN FOR LOGIC SIDE

FEATURES

RSM PACKAGE

(TOP VIEW)

•

V_LPin for Compatibility With Mixed-Voltage

Systems Down to 1.8 V on Logic Side

•

Enhanced ESD Protection on RIN Inputs and

DOUT Outputs

–

±8 kV IEC 61000-4-2 Air-Gap Discharge

±8 kV IEC 61000-4-2 Contact Discharge

±15 kV Human-Body Model

32 31 30 29 28 27 26 25

C2+

C2–

V–

•

Low 300-µA Supply Current

Specified 1000-kbps Data Rate

Auto Powerdown Plus Feature

23 DOUT2

22 DOUT3

21 RIN1

DIN1 4

RIN2

DIN2

19 RIN3

18 RIN4

INVALID

DIN3

APPLICATIONS

RIN5

•

Hand-Held Equipment

PDAs

Cell Phones

Battery-Powered Equipment

Data Cables

9 10 11 1213 14 15 16

NC – No internal connection

DESCRIPTION/ORDERING INFORMATION

The TRS3253E is a three-driver and five-receiver RS-232 interface device, with split supply pins for mixed-signal

operations. All RS-232 inputs and outputs are protected to ±8 kV using the IEC 61000-4-2 Air-Gap Discharge

method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model.

The charge pump requires only four small 0.1-µF capacitors for operation from a 3.3-V supply. The TRS3253E is

capable of running at data rates up to 1000 kbps, while maintaining RS-232-compliant output levels.

The TRS3253E has a unique V_Lpin that allows operation in mixed-logic voltage systems. Both driver in (DIN)

and receiver out (ROUT) logic levels are pin programmable through the V_Lpin. This eliminates the need for

additional voltage level shifter while interfacing with low-voltage microcontroller or UARTs. The TRS3253E is

available in a space-saving QFN package (4 mm × 4 mm RSM).

Auto-powerdown plus can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown plus

enabled, the device activates automatically when a valid signal is applied to any receiver or driver input. INVALID

is high (valid data) if any 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 µs. INVALID is low (invalid data) if all receiver input voltages are between –0.3

V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

ORDERING INFORMATION

T_A

PACKAGE⁽¹⁾⁽²⁾

QFN – RSM

ORDERABLE PART NUMBER

TRS3253ERSMR

TOP-SIDE MARKING

–40°C to 85°C

RS53EI

(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com.

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.

PRODUCT PREVIEW information concerns products in the

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.

12 3 4 5 6 7...19

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与TRS3253EMRSMEP相关器件

型号	品牌	获取价格	描述	数据表
TRS3253EMRSMREP	TI	获取价格	RS-232 Transceiver With Split Supply Pin for Logic Side 32-VQFN -55 to 125
TRS3253ERSMR	TI	获取价格	RS-232 TRANSCEIVER WITH SPLIT SUPPLY PIN FOR LOGIC SIDE
TRS3254	ETC	获取价格	TRANSISTOR \| BJT \| NPN \| 325V V(BR)CEO \| 400MA I(C) \| TO-5
TRS3255	ETC	获取价格	TRANSISTOR \| BJT \| NPN \| 325V V(BR)CEO \| 400MA I(C) \| TO-37VAR
TRS-3280AG	OPTOWAY	获取价格	5V / 1550 nm / 155 Mbps RoHS Compliant Optical Single-Mode Transceiver
TRS-3280-CXX0G	OPTOWAY	获取价格	CWDM 5V / 155 Mbps RoHS Compliant Optical Single-Mode Transceiver
TRS-3280G	OPTOWAY	获取价格	5V / 1550 nm / 155 Mbps RoHS Compliant Optical Single-Mode Transceiver
TRS-33100AG	OPTOWAY	获取价格	3.3V / 1550 nm / 155 Mbps RoHS Compliant Optical Single-Mode Transceiver
TRS-33100-CXX0G	OPTOWAY	获取价格	CWDM 3.3V / 155 Mbps RoHS Compliant Optical Single-Mode Transceiver
TRS-33100F-C470	OPTOWAY	获取价格	Fiber Optic Device,

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