SA8803

sames

7/10

6.

Test feature

If the TEST pin is pulled low, the status of all 24 LED's are output at pin DOUT in

3 groups of 8 status bits each, with a start bit and a stop bit added. The data rate

of this status word is equal to the input data rate (i.e. CLK) devided by 8.

The three data word that are serially output at DOUT each contain 11-bit. This

means that bit 10 is not used in each case. The words therefore contain a start bit,

8 LED status bits (1 for off, 0 for on). 1 unused bit, and a stop bit. The three groups

are output consecutively in the following order: first LED's 1 to 8, then 9 to 16, and

then 17 to 24.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V

DD

-0.30 V to +5.50 V

Supply Voltage, V

EE

0.30 V to -5.50 V

Input or Output Voltage

-0.30 V to (V

DC Forward Bias Current, Input or Output

± 10 mA

Storage Temperature (Plastic)

-40 to 125°C

Operating Temperature

0° - 70°

Note 1:

Referenced to GND. Stresses above those listed under "Absolute Maximum

Ratings" may cause permanent damage to the device. This is a stress rating only and

functional operation of the device at these or any other conditions above those indicated

in the operation sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may effect the device reliability.

ELECTRICAL CHARACTERISTICS

DC Electrical Characteristics Across Temperature Range (Note 1)

Symbol

Parameter

Condition

Min

Typ

Max Unit

TTL INTERFACE

V

IL

Low Level

0.8

V

Input Voltage

V

IH

High Level

2.0

V

Input Voltage

V

OL

Low Level

I

0.1

0.4

V

Ouput Voltage

V

OH

High Level

I

2.4

4.5

V

Output Voltage