Approximate Internal Connections

Absolute Maximum Ratings

Operating Temperature...........................

-25°Cto75°C

Storage Temperature ............................

-50°Cto125°C

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum 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 exposure to extreme conditions may affect device reliabil-

ity.

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

-35

V

Oscillation Frequency

5V

W

350

500

650

kHz

Output Pull-low Resistor

5V

Driver output

50

100

150

k

W

Operating Current

5V

No load, VFD display off

¾¾

5mA

Driver Leakage Current

5V

-35V, VFD driver

off

¾¾

-10

mA

LED Sink Current

5V

20

¾¾

mA

LED Source Current

5V

LED0~LED3

-1

¾¾

mA

Segment/Key Source Current

5V

-2V

S0/K0~S5/K5, S6~S10

-3

¾¾

mA

Segment/Grid Source Current

5V

-2V

G0~G5, S11/G10~S15/G6

-15

¾¾

mA

DO Sink Current

5V

4

¾¾

mA

²H² Input Voltage

¾¾

¾

V

²L² Input Voltage

¾¾

0

¾

V

High-level Output Voltage

5V

-1mA

¾

V

Low-level Output Voltage

5V

0

¾

1V

Low-level Output Voltage

5V

0

¾

0.4

V

HT16512

Rev. 1.40

3

May 3, 2005

N M O S O U T

P M O S O U T

C M O S O U T