ST7541 Datasheet, PDF (30/78 Pages) Sitronix Technology Co., Ltd. – 4 Gray Scale Dot Matrix LCD Controller/Driver

ST7541
Follower voltage reference circuit (External Vout & Internal Regulator)
External
VDD
VOUT
INTR
External
VSS
VOUT
INTR
VSS
VSS
V0
C2
V1
C2
V2
C2
V3
C2
V4
Rb
V0
VR
VSS
Ra
VSS
V0
C2
V1
C2
V2
C2
V3
C2
V4
Left is using internal Resister
Right is using External Resister
C1= 1u F ~ 4.7u F , C2 = 0.1u F ~ 1u F (suggestion value: C1=1uF , C2=0.1uF)
Ver 1.9
30/78
2007/9/3