DLO4135 Ver la hoja de datos (PDF) - Infineon Technologies
Número de pieza
componentes Descripción
Fabricante
DLO4135
Infineon Technologies
DLO4135 Datasheet PDF : 4 Pages
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Top View — DLO4135/DLG4137
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
Pin Functions — DLO4135/DLG4137
Pin Function
Pin Function
1
LT Lamp
2
WR Write
3
BL1 Brightness
4
BL0 Brightness
5
No Pin
6
No Pin
7
CE Chip Enable
8
GND
9
D0 Data LSB
10 D1 Data
11 D2 Data
12 D3 Data
13 D4 Data
14 D5 Data
15 D6 Data MSB
16 +VCC
Top View — DLO7135/DLG7137
1
14
2
13
3
12
4
11
5
10
6
9
7
8
Pin Functions — DLO7135/DLG7137
Pin Function
Pin Function
1
VCC
2
LT Lamp Test
3
CE Chip Enable
4
WR Write
5
BL1 Brightness
6
BL0 Brightness
7
GND
8
D0 Data Input LSB
9
D1 Data
10 D2 Data
11 D3 Data
12 D4 Data
13 D5 Data
14 D6 Data Input MSB
Lamp Test
When the lamp test (LT) is activated, all dots on the display
are illuminated at 1â„7 brightness. The lamp test function is
independent of write (WR) and the settings of the blanking
inputs (BL0, BL1).
This convenient test gives a visual indication that all dots are
functioning properly. Lamp test also may be used as a cursor
function or pointer which does not destroy previously dis-
played characters.
Dimming and Blanking the Display
Brightness Level
BL1
BL0
Blank
1â„7 Brightness
1â„2 Brightness
0
0
0
1
1
0
Full Brightness
1
1
Loading Data
Loading data into the display is straightforward. Chip enable
(CE) should be present and stable during a write pulse (WR).
Parallel data information should be stable for the minimum
time (TW) and held for TDH after write has gone high. No syn-
chronization is necessary and each character will continue to
be displayed until it is replaced with another. Multiple dis-
plays may be stacked together with only an additional
decoder IC for chip enable decoding.
Note : Either BL0 or BL1 should be held high for display to light up.
Data Loading Example
Data Input
CE WR BL0 BL1 LT
D6 D5 D4 D3 D2 D1 D0
H X H X H X X X X X X X NC
X X L L H X X X X X X X Blank
X X X X L X X X X X X X Lamp Test
L L H H HHL L L L L HA
L L H H HHHHL L HL r
L L H H HL HHL L HH3
L L H H HL HL HL HH+
X=don’t care, NC=no change
2–10
DLO4135/7135/DLG4137/7137
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