Pin Assignment

Block Diagram

Pad Coordinates

Unit:

Pad

No.

XY

Pad

No.

XY

1

–885.05

522.30

8

1008.85 –710.50

2

–885.05

344.50

9

905.45

660.50

3

–1005.05

–710.50

10

628.05

660.50

4

–229.95

–660.50

11

296.45

660.50

5

62.35

–660.50

12

–333.95

660.50

6

526.75

–660.50

13

–665.55

660.50

7

833.85

–660.50

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 code 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 code

option). Open drain, active low output

5, 12, 13

NC

—

—

No connection

HT819D0

2

6th May ’98