MC141800A Datasheet, PDF (25/34 Pages) Motorola, Inc – LCD Segment / Common Driver with Controller

IIC Serial mode operation with minimum external components
DV_DD AV_DD
V_CC
0.1µF
0.1µF
CMOS
MPU/MCU
SCL
SDA
V_DD
DVSS DVDD
R
R
CLK
D0/SDA
RES
V_DD
D7/IIC/SPI
AVDD
AVSS VLL2 VLL3
MC141800A
VLL4 VLL5 VLL6
VCC
D1/A1
D2/A2
COM0 to
COM64
SEG0 to
SEG127
EPROM
S/P _{OSC2 OSC1}
VF
VR C3P C3N C2P C2N ^{C1P C1N}
Ext Osc.
RAM
IIC Address
To LCD
Panel
Remark :
1. RES should be at a known state.
2. R/W, CE, D/C and D3-D6 can be open for IIC serial mode.
3. D1/A1 and D2/A2 should be at predefined state for device identification.
4. R is pull up resistance, R <
t_r
2 * C_bus
(R = 300 ohm for 1MHz, assume C_bus = 200pF)
5. AVDD and DVDD should be at the same level.
6. External high voltage and internal divider are used.
7. The component values stated above are for reference only. Adjustment is needed for dif-
ferent applications.
MOTOROLA
MC141800A
3–281