Rev. 1.00

2

May 07, 2012

HT62104

Pin Assignment

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

C1

C2

K1

K2

K3

K4

K5

VS S

VD D

DO UT

LE D

VD D1

VSS1

K8

K7

K6

HT 62104

16 DI P- A/ NS OP -A

Pin Description

Pin Name

Type

Description

VDD/VDD1

—

Logic circuit positive power supply.

VSS

—

Logic circuit negative power supply, ground.

VSS1

—

IR-LED negative power supply

C1, C2

I

Custom code inputs.

K1~K8

I

Remote control key inputs. Internally connected to pull-high resistors.

DOUT

O

Serial data output. NMOS open-drain structure.

LED

O

Transmission indicator. PMOS open-drain structure.

Approximate Internal Connections

C1,C2

K1 ~ K8

LED

VSS

VDD

VSS1

DOUT

VSS

VDD

R

R

VDD

VSS

VDD