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參數(shù)資料
| 型號： | TB62709NG |
| 廠商： | Toshiba Corporation |
| 英文描述： | 7−SEGMENT DRIVERS WITH BUILT−IN DECODERS (COMMON ANODE CAPABILITY, MAXIMUM 4−DIGIT CONTROL) |
| 文件頁數(shù)： | 6/29頁 |
| 文件大小： | 576K |
| 代理商： | TB62709NG |
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TB62709NG/FG
2006-06-14
6
z
Operating modes (Table 1.)
These ICs support the following five operating modes :
1. Blank
: Forcibly turns OFF the constant
current output both for data and for digit setting. This
mode is not affected by the values in bits D
11
to D
0
.
2. Normal Operate : Used for display operations after the settings of the digits are complete. Note that setting
this mode without making any other settings will cause display of the numeral 0.
3. Load Register
: Used for the detail settings of the Duty Control Register, for setting Decode / No Decode,
for inputting display data, and for setting the number of digits to drive. D
11
to D
0
of the
shift register are used for the detail settings of the digits currently being driven (Table 2).
4. All On
: Forcibly turns ON the data
side constant
current output. This mode is not affected by
D
11
to D
0
.
The initial setting is four digits. When the digits must be changed,
use Load Register mode to set the number of digits to drive.
5. Standby
: Used to set Standby state (in which internal data are not cleared) and to clear data
(initialization). The settings in D
3
to D
0
of the shift register determine the choice between
standby state or initialization.
Table 1 Operating mode settings
REGISTER DATA
D
12
D
11
~D
8
D
15
D
14
D
13
D
7
~D
4
D
3
~D
0
HEX CODE
INITIAL
SETTING
BLANK (OUT
n &
DIG
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
2XXXH
ALL ON (OUTn ALL
ON)
0
0
1
1
―
―
―
3
H
STAND
BY
0
1
0
0
―
―
X
4
XH
X = Input H or L. "
" = Are not affected by the truth table.
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