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MAX3318E

2.5-V 460-kbps RS-232 TRANSCEIVER

WITH

±15-kV ESD PROTECTION

SLLS741 – JUNE 2006

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube of 70

MAX3318ECDB

SSOP – DB

MP318EC

Reel of 2000

MAX3318ECDBR

–0

°C to 70°C

Tube of 70

MAX3318ECPW

TSSOP – PW

MP318EC

Reel of 2000

MAX3318ECPWR

Tube of 70

MAX3318EIDB

SSOP – DB

MP318EI

Reel of 2000

MAX3318EIDBR

–40

°C to 85°C

Tube of 70

MAX3318EIPW

TSSOP – PW

MP318EI

Reel of 2000

MAX3318EIPWR

(1)

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

www.ti.com/sc/package.

DETAILED DESCRIPTION

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

The auto-power-down 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-power-down plus can be

disabled when FORCEON and FORCEOFF are high. With auto-power-down 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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