Approximate internal connections

Absolute Maximum Ratings

Supply Voltage..............................-0.3V to 5.5V

Operating Temperature ..............-25°Cto75°C

Storage Temperature.................-50°Cto125°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-

mum Ratings² may cause substantial damage to the device. Functional operation of this device

at other conditions beyond those listed in the specification is not implied and prolonged expo-

sure to extreme conditions may affect device reliability.

D.C. Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

Min.

Typ. Max. Unit

Conditions

Logic Supply Voltage

¾¾

4.5

5

5.5

V

VFD Supply Voltage

¾¾

0

¾

Oscillation Frequency

350

500

650

kHz

Output Pull-low Resistor

5V Driver output

50

100

150

kW

Operating Current

5V No load,

VFD display off

¾¾

5mA

Driver Leakage Current

VFD driver off

¾¾

-10

mA

LED Sink Current

LED0~LED3

20

¾¾

mA

LED Source Current

LED0~LED3

-1

¾¾

mA

Segment/Key Source Current

5V

S0/K0~S5/K5,

S6~S10

-3

¾¾

mA

HT16512

4

December 24, 1999

NM O S O UT

PM O S O U T

CM O S O UT