LMS485E datasheet(3/13 Pages) NSC

3 / 13 page

Pin Descriptions

Pin # I/O

Name

Function

Receiver Output: If A > B by 200 mV, RO will be high; If A < B by 200 mV, RO will be low. RO

will be high also if the inputs (A and B) are open (non-terminated).

RE*

Receiver Output Enable: RO is enabled when RE* is low; RO is in TRI-STATEwhen RE* is high

Driver Output Enable: The driver outputs (A and B) are enabled when DE is high; they are in

TRI-STATETRI-STATE® when DE is low. Pins A and B also function as the receiver input pins

(see below)

Driver Input: A low on DI forces A low and B high while a high on DI forces A high and B low

when the driver is enabled

GND

Ground

I/O

Non-inverting Driver Output and Receiver Input pin. Driver output levels conform to RS-485

signaling levels

I/O

Inverting Driver Output and Receiver Input pin. Driver Output levels conform to RS-485 signaling

levels

8NA

Power Supply: 4.75V

≤ V

≤ 5.25V

Ordering Information

Package

Part Number

Package Marking

Transport Media

NSC Drawing

8-Pin SOIC

LMS485ECM

95 Units/Rail

M08A

LMS485ECMX

2.5k Units Tape and Reel

LMS485EIM

95 Units/Rail

LMS485EIMX

2.5k Units Tape and Reel

8-Pin DIP

LMS485ECNA

40 Units/Rail

N08E

LMS485EINA

40 Units/Rail

LMS485E Datasheet(PDF) 3 Page - National Semiconductor (TI)

LMS485E Datasheet(HTML) 3 Page - National Semiconductor (TI)

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