Pin Assignment

Block Diagram

Pad Coordinates

Unit:

Pad

No.

XY

Pad

No.

XY

1

–887.00

702.20

9

903.50

365.80

2

–887.00

524.50

10

886.90

568.00

3

–1007.00 –804.00

11

886.90

743.00

4

–231.30 –754.00

12

626.90

754.00

5

59.80

–754.00

13

76.80

754.00

6

523.50

–754.00

14

–253.70

754.00

7

831.30

–754.00

15

–627.20

754.00

8

1006.90 –804.00

Chip size: 2290

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

Pin Description

Pin No.

Pin Name

I/O

Internal

Connection

Description

1

OSC1

I

—

Oscillator input pin

2

FLAG1

O

NMOS

Open Drain

3HzB/6HzB flash output, busy output, end-pulse or

voice output indication (by mask option). Open

drain, active low output

3

VSS

I

—

Negative power supply (GND)

4

FLAG2

O

NMOS

Open Drain

3Hz/6Hz flash output or busy output (by mask

option). Open drain, active low output

HT813D0

2

5th May ’98