Block Diagram

Pin Assignment

Pad Assignment

Pad Coordinates

Unit: mm

Pad No.

X

Y

1

-571.75

-578.00

2

175.75

-545.50

3

592.25

-545.50

* The IC substrate should be connected to VDD in the PCB layout artwork.

Absolute Maximum Ratings

Supply Voltage.............................+0.3V to -26V

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

Power Consumption.............................. 250mW

Operating Temperature ..................0°Cto70°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.

HT74XX

2

January 26, 2000

VOUT

VIN

ref

GND

VOUT

GND VIN

HT74XX

TO-92

GND VIN

VOUT

SOT-89

Front View

Bottom View

1

2

3

(0 , 0 )