590

120 Broadway • Menands, New York 12204

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marktech

optoelectronics

TOSHIBA Bi-CMOS Integrated

Circuit Silicon Monolithic

For up-to-date product info visit our web site at www.marktechopto.com

All specifications subject to change.

TB62709N/F

TB62709N/F

TB62709N/F

TB62709N/F

TB62709N/F

Operation

Serial data is input on the DATA-IN terminal beginning with the most significant bit (MSB). Data

is clocked through the 16 bit shift register on the rising edge of the clock. A Low to High transi-

latch.

Expansion beyond four digits is possible through the use of a cascade connection from the

DATA-OUT terminal. The data-out lags data-in by one bit through the data-out terminal.

Each 16 bit word typically includes 8 address bits and 8 data bits. The first four data bits,

beginning with D15 (MSB) ~ D12 select the Action mode (see figure 1). These global com-

mands determine the overall function the device is to perform and includes Blank, Normal

Operation, Load Register, All On and Stand-by. Data bits D11~D8 select the particular register to

be loaded (see figure 2) should the load register function be selected. Data bits D7~D0 (LSB)

define the specific commands required to program the display and define the brightness setting

(duty cycle).

Figure 1. Action Mode

“x” indicates that data is required in this field to execute the function. “-” indicates that data in

this field is not required and not recognized.

Data Input

Data is input on the SERIAL-IN terminal. Each 16 bit serial word includes an address (D15 ~ D8)

and data (D7 ~ D0). A low to high transition load command on the LOAD terminal loads the data

REGISTER DATA

INITIAL

STATE

FUNCTION

D15

D14

D13

D12

D11~D8

D7~D4

D3~D0

Hex Code

Blank

(OUTn & Digit 0~3 All Off)

0

0

0

0

—

—

—

0 - - - H

⇐

Normal Operation

0

0

0

1

—

—

—

1 - - - H

Load Register

(Duty, Decode, Digit & Data)

0

0

1

0

X

X

X

2 xxx H

All On (OUTn ALL On)

0

0

1

1

—

—

—

3 - - - H

Stand-By

0

1

0

0

—

—

—

4 - - - H