ST7565S ETC-unknow, ST7565S Datasheet - Page 36

• Manufacturer Part Number: ST7565S
• Description: 65 X 132 Dot Matrix Lcd Controller/driver
• Manufacturer: ETC-unknow

ST7565S
(B) When an External Resistance is Used (The V
The liquid crystal power supply voltage V
without using the V
terminal = “L”) by adding resistors Ra’ and Rb’ between V
and V
done, the use of the electronic volume function makes it
possible to adjust the brightness of the liquid crystal display
Setup example: When selecting Ta = 25°C and V
ST7565S the temperature gradient = –0.05%/°C.
When the central value of the electron volume register is
(D5, D4, D3, D2, D1, D0) = (1, 0, 0, 0, 0, 0), then é = 31 and
V
Moreover, when the value of the current running through
Ra’ and Rb’ is set to 5 uA,
Consequently, by equations B-2 and B-3,
Ver 0.3c
ÀÊé
REG
é
È
R
= –2.1V so, according to equation B-1,
Ð
Ð
, and between V
»
»
V
Variable Range
Notch width
Ä
Ä
5
¾
¾
é
Ø ø
ôÿ
øü³åôº
Ø ø
ôÿ
øü³åõº
åõº
åôº
åõº
åôº
È
î
Ð
Ð
5
é
»
»
voltage regulator internal resistors (IRS
¼
¼
Ä
Ä
¾
¾
R
Øé
and V
åõº
åôº
åõº
åôº
»
»
Ð
Ä À
Ä À
¼
¼
5
»
Min
–8.6 (63 levels)
, respectively. When this is
Ä À
ÄÉÅ
ÄÉÅ
é
ÆÄ
»
é
ÄÉÅ
Ä À
é
Øé
¼
¼
5
¼
ÄÉÅ
é
»ÀÅÁļ
can also be set
é
åØÚ
é
é
¼
Øé
5
åØÚ
= –7 V for
»ùü ø÷³ ÿôúø³ ø³ÿ ¾øÿøö
üö³ ÿ ø¼
5
é
ð
Voltage Regulator Internal Resistors Are Not Used) (1)
åØÚ
DD
Typ
–7.0 (central value)
Figure 11
Table 14
52
36/73
by controlling the liquid crystal power supply voltage V
through commands.
In the range where | V
calculated using equation B-1 based on the external
resistances Ra’ and Rb’.
At this time, the V
width, based on the electron volume function, is as
given in Table 14.
åõº
åôº
åõº Ð ÄÃÉÃþè
åôº Ð ÆÇÃþè
Ð
ÆÁÄÅ
–5.3 (0 level)
Max
5
voltage variable range and notch
5
| < | V
OUT
|, the V
é
Units
[V]
[mV]
é
××
È
5
voltage can be
2002/07/22
5