Pin Description

Pin Name

I/O

Internal

Connection

Description

A0~A11

I

TRANSMISSION

GATE

Input pins for address A0~A11 setting

They can be externally set to VDD, VSS, or left open.

AD10~AD17

I

TRANSMISSION

GATE

Input pins for address/data (AD10~AD17) setting

They can be externally set to VDD, VSS, or left open.

D12~D15

I

CMOS IN

Pull-low

Input pins for data (D12~D15) setting and transmission enable (active high)

They an be externally set to VDD or left open (see Note).

DOUT

O

CMOS OUT

Encoder data serial transmission output

LED

O

NMOS OUT

LED transmission enable indicator

TE

I

CMOS IN

Pull-low

Transmission enable, active high (see Note).

OSC1

I

OSCILLATOR

Oscillator input pin

OSC2

O

OSCILLATOR

Oscillator output pin

VSS

¾¾

Negative power supply, ground

VDD

¾¾

Positive power supply

Note:

D12~D15 are data input and transmission enable pins of the HT6207.

TE is the transmission enable pin of the HT600/HT680.

Approximate Internal Connections

Absolute Maximum Ratings

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

-50°Cto125°C

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

-20°Cto75°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.

HT600/HT680/HT6207

Rev. 1.10

3

January 24, 2003

T R A N S M I S S I O N

G A T E

C M O S I N

P u l l - l o w

C M O S O U T

O S C I L L A T O R

O S C 1

O S C 2

E N

N M O S O U T