tb62709ng Marktech Optoelectronics, tb62709ng Datasheet - Page 6

• Manufacturer Part Number: tb62709ng
• Description: 7?segment Drivers With Built?in Decoders
• Manufacturer: Marktech Optoelectronics

BLANK (OUT−n &
DIG−0~3 ALL−OFF)
NORMAL (OPERATION)
LOAD REGISTER (DUTY,
DECODE, DIGIT & DATA)
ALL ON (OUTn ALL−ON)
STAND−BY
1. Blank
2. Normal Operate : Used for display operations after the settings of the digits are complete. Note that setting
3. Load Register
4. All On
5. Standby
These ICs support the following five operating modes :
X = Input H or L. "−" = Are not affected by the truth table.
Operating modes (Table 1.)
: Forcibly turns OFF the constant−current output both for data and for digit setting. This
: Used for the detail settings of the Duty Control Register, for setting Decode / No Decode,
: Forcibly turns ON the data−side constant−current output. This mode is not affected by
: Used to set Standby state (in which internal data are not cleared) and to clear data
mode is not affected by the values in bits D
this mode without making any other settings will cause display of the numeral 0.
for inputting display data, and for setting the number of digits to drive. D
shift register are used for the detail settings of the digits currently being driven (Table 2).
D
The initial setting is four digits. When the digits must be changed,
use Load Register mode to set the number of digits to drive.
(initialization). The settings in D
standby state or initialization.
11
D
to D
0
0
0
0
0
15
0
Table 1 Operating mode settings
.
D
0
0
0
0
1
14
D
0
0
1
1
0
13
D
0
1
0
1
0
12
REGISTER DATA
6
3
to D
D
11
―
―
―
―
X
~D
0
of the shift register determine the choice between
8
11
to D
D
7
―
―
―
―
~D
X
0
4
.
D
3
―
―
―
X
X
~D
0
HEX CODE
2XXXH
0−−−H
1−−−H
3−−−H
4−−XH
TB62709NG/FG
11
2005-10-06
to D
SETTING
INITIAL
0
■
of the