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ABC

TRS3318E

2.5-V 460-kbps RS-232 TRANSCEIVER

WITH

±15-kV ESD PROTECTION

SLLS805 – APRIL 2007

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube of 70

TRS3318ECDB

SSOP – DB

RV318EC

Reel of 2000

TRS3318ECDBR

0

°C to 70°C

Tube of 70

TRS3318ECPW

TSSOP – PW

RV318EC

Reel of 2000

TRS3318ECPWR

Tube of 70

TRS3318EIDB

SSOP – DB

RV318EI

Reel of 2000

TRS3318EIDBR

–40

°C to 85°C

Tube of 70

TRS3318EIPW

TSSOP – PW

RV318EI

Reel of 2000

TRS3318EIPWR

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

(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.

DETAILED DESCRIPTION

Flexible control options for power management are featured when the serial port and driver inputs are inactive.

The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high. During this mode

of operation, if the device does not sense valid signal transitions on all receiver and driver inputs for

approximately 30 s, the built-in charge pump and drivers are powered down, reducing the supply current to

1

µA. By disconnecting the serial port or placing the peripheral drivers off, 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 (typical number). INVALID is low (invalid data) if all receiver input voltage are between –0.3 V and

0.3 V for more than 30

µs (typical number).

2

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