8

LTC1483

© LINEAR TECHNOLOGY CORPORATION 1994

LT/GP 1094 10K • PRINTED IN THE USA

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7487

APPLICATIO S I FOR ATIO

Shutdown Mode

Both the receiver output (RO) and the driver outputs (A, B)

can be placed in three-state mode by bringing RE high and

DE low respectively. In addition, the LTC1483 will enter

shutdown mode when RE is high and DE is low.

In shutdown the LTC1483 typically draws only 1

µA of

supply current. In order to guarantee that the part goes

into shutdown, RE must be high and DE must be low for

at least 600ns simultaneously. If this time duration is less

than 50ns the part will not enter shutdown mode. Toggling

either RE or DE will wake the LTC1483 back up within

3.5

µs.

If the slow slew rate driver was active immediately prior to

shutdown, the supply current will not drop to 1

µA until the

driver outputs have reached a steady state; this can take as

long as 2.6

µs under worst case conditions. If the driver

was disabled prior to shutdown the supply current will

drop to 1

µA immediately.

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LTC485

5V Low Power RS485 Interface Transceiver

Low Power

LTC1480

3.3V Ultra-Low Power RS485 Transceiver

World’s First 3V Powered 485 Transceiver with Low Power Consumption

LTC1481

5V Ultra-Low Power RS485 Transceiver with Shutdown

Lowest Power

LTC1485

5V Differential Bus Transceiver

Highest Speed

LTC1487

5V Ultra-Low Power RS485 with Low EMI Shutdown

High Input Impendance/Low EMI/Lowest Power

and High Input Impendance

Dimension in inches (millimeters) unless otherwise noted.

N Package

8-Lead Plastic DIP

N8 0695

0.005

(0.127)

MIN

0.100

± 0.010

(2.540

± 0.254)

0.065

(1.651)

TYP

0.045 – 0.065

(1.143 – 1.651)

0.130

± 0.005

(3.302

± 0.127)

0.015

(0.380)

MIN

0.018

± 0.003

(0.457

± 0.076)

0.125

(3.175)

MIN

12

3

4

87

6

5

0.255

± 0.015*

(6.477

± 0.381)

0.400*

(10.160)

MAX

0.009 – 0.015

(0.229 – 0.381)

0.300 – 0.325

(7.620 – 8.255)

0.325

+0.025

–0.015

+0.635

–0.381

8.255

()

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)

1

2

3

4

0.150 – 0.157**

(3.810 – 3.988)

8

7

6

5

0.189 – 0.197*

(4.801 – 5.004)

0.228 – 0.244

(5.791 – 6.197)

0.016 – 0.050

0.406 – 1.270

0.010 – 0.020

(0.254 – 0.508)

× 45°

0

°– 8° TYP

0.008 – 0.010

(0.203 – 0.254)

SO8 0695

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

*

**

S Package

8-Lead Plastic SOIC