em6521 EM Microelectronic, em6521 Datasheet - Page 50

• Manufacturer Part Number: em6521
• Description: Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver
• Manufacturer: EM Microelectronic

Figure 37 LCD Multiplexing Waveform
Copyright © 2005, EM Microelectronic-Marin SA
COM1
COM2
COM3
COM4
SEG[1]
SEG[2]
SEG[3]
SEG[4]
SEG[5]
value =
hex 0
value =
hex 1
value =
hex 2
value =
hex 4
value =
hex 8
CkLcd
Frame
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
VL3
VL2
VL1
V
SS
SS
SS
SS
SS
SS
SS
SS
SS
R
value =
hex 0
value =
hex 1
value =
hex 2
value =
hex 4
value =
hex 8
50
SEG[2
SEG[4]
SEG[5]
SEG[1
SEG[3
COM1
COM4
COM3
COM1
COM2
COM1
COM2
COM3
COM4
-
-
-
-
-
]
]
]
VL3
VL2
VL1
V
-VL1
-VL2
-VL3
VL3
VL2
VL1
V
-VL1
-VL2
-VL3
VL3
VL2
VL1
V
-VL1
-VL2
-VL3
VL3
VL2
VL1
V
-VL1
-VL2
-VL3
VL3
VL2
VL1
V
-VL1
-VL2
-VL3
SS
SS
SS
SS
SS
SEG[1]
SEG[2]
SEG[3]
www.emmicroelectronic.com
EM6521
SEG[4]
SEG[5]