DS800-4 July ’07

©2007 RF Solutions Ltd, www.rfsolutions.co.uk

Page 7

Tel 01273 898000 Fax 01273 480661

Radio Encoder / Decoder IC’s

RF800

Technical Specifications:

Absolute Maximum Ratings

Note

: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

Item

Rating

Units

Supply voltage

4 to 5.5

V

Input voltage

-0.3 to VDD + 0.3

V

Output voltage

-0.3 to VDD+ 0.3

V

Max output current

25

mA

Storage temperature

-55 to +125

°C (Note)

Lead soldering temp

300

°C (Note)

ESD rating

4000

V

Max O/P current sunk by any I/O pin

25

mA

Max O/P current sourced by any I/O pin

25

mA

RF800 Decoder/ Encoder

Electrical Characteristics

Min

Typical

Max

Unit

Operating current(average)

Vdd = 5V

1.8

3.3

mA

Standby current

1.8

3.3

µA

High level Input voltage

.45 Vdd

Vdd

V

Low level input voltage

Vss

.2Vss

V

High level output voltage

Vdd-0.7

V

Low level output voltage

0.6

V

Output Pin Current rating

25

mA

LED sink current

5

25

mA

RF800E / 800D System Characteristics

Electrical Characteristics

Min

Typical

Max

Unit

Time from RF800E input operation to

RF800D Output asserted:

Element time of 100uSecs

Element time of 400uSecs

16.6

66.4

16.8

66.6

17

66.8

mS

Time from RF800E input released to

RF800D Output released:

Element time of 100uSecs

Element time of 400uSecs

16.6

66.4

16.8

66.6

17

66.8

mS

Decoder Momentary Output Time of

operation

350

mS

Note that in momentary mode, the output will be asserted for as long as the 204 buttons are pressed.