PT6314 Datasheet, PDF (16/49 Pages) Texas Instruments – 3 Amp Adjustable Positive Step-down Integrated Switching Regulators

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Dot Character VFD Controller/Driver IC
PT6314
N=“1” 2-LINE DISPLAY, LESS THAN 40 CHARACTERS
In cases when the number of display characters is less than 40 x 2 lines, the two lines are displayed
from the head. The line end address and the second line start address are not consecutive. For
example, if only one PT6314 is being used, 24 characters x 2 lines are displayed. When the display
shift operation is performed, the DDRAM address shifts.
Display Position
Digit
DDRAM Address
(hexadecimal)
1
2
3
4
5
6
…… 23 24
00 01 02 03 04 05 …… 16 17
40 41 42 43 44 45 …… 56 57
For Shift-Left
01 02 03 04 05 06 …… 17 18
41 42 43 44 45 46 …… 57 58
For Shift-Right
27 00 01 02 03 04 …… 15 16
67 40 41 42 43 44 …… 55 56
N=“1”:2-LINE DISPLAY, 40 CHARACTERS
PT6314 can be extended using one of the 16 output extension drivers as GRID. Under this condition, a
40-character x 2 lines display may be constructed.
Display Position
Digit
DDRAM Address
(hexadecimal)
1 2 3 4 …… 23 24 25 …… 39 40
00 01 02 03 …… 16 17 18 …… 26 27
40 41 42 43 …… 56 57 58 …… 66 67
Digit
For Shift-Left
1 2 3 4 …… 23 24 25 …… 39 40
01 02 03 04 …… 17 18 19 …… 27 00
41 42 43 44 …… 57 58 59 …… 67 40
Digit
For Shift-Right
1 2 3 4 …… 23 24 25 …… 39 40
27 00 01 02 …… 15 16 17 …… 25 26
67 40 41 42 …… 55 56 57 …… 65 66
PT6314 Display
Extension Driver
Display
PT6314 V1.3
- 16 -
March, 2006