ST7565
Ta = 25 °C and booster off ,regulator, follower on , VOUT=-13V , VSS=-3V,VRS=-2.6V
-14
-13
-12
-11
-10
-9
-8
-7
V5
-6
UNIT:V -5
-4
-3
-2
-1
0
00H
18H
30H
111
110
101
100
011
010
001
000
V5 voltage regulator
internal resistor ratio set
D2,D1,D0
3FH
Electronic volume
registered
D5 ~ D0
Figure 10 : (2) For ST7565-0B with External Input VRS
The V5 voltage as a function of the V5 voltage regulator internal resistor ratio register and the electronic volume register.
Setup example: When selecting Ta = 25°C and V5 = –7V for an ST7565-0A on which Temperature gradient = –0.15%/°C.
Using Figure 9 and the equation A-1, the following setup is enabled.
At this time, the variable range and the notch width of the V5 voltage is, as shown Table 13, as dependent on the electronic
volume.
Table 12
Contents
Register
D5 D4 D3 D2 D1 D0
For V5 voltage regulator
———0 1 0
Electronic Volume
1 0 010 1
V5
Variable Range
Notch width
Min
–8.4 (63 levels)
Table 13
Typ
–6.8 (central value)
51
Max
–5.1 (0 level)
Units
[V]
[mV]
Ver 1.0a
24/56
2002/06/24