TB62709F Ver la hoja de datos (PDF) - Marktech Optoelectronics
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TB62709F Datasheet PDF : 24 Pages
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TOSHIBA Bi-CMOS Integrated
Circuit Silicon Monolithic
TB62709N/F
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
into the appropriate registers following the 16th clock pulse.
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-
tion on the LOAD input following the 16th (LSB) bit latches the 16 bit word into the 16 bit D-type
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
FUNCTION
REGISTER DATA
INITIAL
STATE
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)
Stand-By
0
0
1
1
—
0
1
0
0
—
—
—
3 --- H
—
—
4 --- H
“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.
marktech
optoelectronics
120 Broadway • Menands, New York 12204
Toll Free: (800) 98-4LEDS • Fax: (518) 432-7454
For up-to-date product info visit our web site at www.marktechopto.com
590
All specifications subject to change.
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