UL318

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R125-087.a



PARAMETER

SYMBOL

VALUES

UNIT

Supply Voltage to Ground

7

V

Logic Input Voltage

V

Junction Temperature

+150

°C

Operating Ambient Temperature

-40 ~ +85

°C

Storage Temperature

-65 to +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Logic Supply Voltage

4.5

5.0

5.5

V

High Level Input Voltage

High Level Guaranteed

Digital Pins

V

Low Level Input Voltage

Low Level Guaranteed

Digital Pins

0

V

Hysteresis Voltage (DIN, CLK, STB pins)

0.35

V

Low Level Output Voltage

0.4

V

Segment Drive LED Source Current

-20

-30

-50

mA

GRID Drive LED Sink Current

VO=0.3V

80

120

mA

Segment Drive Current Matching

3

%



PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Quiescent Power Supply Current

1

mA

Operating Power Supply Current

(display ON)

All Segments ON, All Digits

Scanned, Intensity Set to Full,

Internal Oscillator, No Display

Load Connected

5

mA



TIMING CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Clock Pulse Width

400

ns

Strobe Pulse Width

1

μs

Data Setup Time

100

ns

Data Hold Time

CLK Rising Edge to STB Rising

Edge

100

ns

Clock-Strobe Time

1

μs