PS12001ARN-0 POWERTIP [Powertip Technology], PS12001ARN-0 Datasheet - Page 31

• Manufacturer Part Number: PS12001ARN-0
• Description: OUTLINE DIMENSION & BLOCK DIAGRAM
• Manufacturer: POWERTIP [Powertip Technology]

ST7066U
!" Pin Function
Note:
1. Vcc>=V1>=V2>=V3>=V4>=V5 must be maintained
2. Two clock options:
V2.0
OSC1, OSC2
DB4 to DB7
DB0 to DB3
V
COM1 to
V1 to V5
SEG1 to
Name
COM16
SEG40
CC
R/W
CL1
CL2
RS
, GND
M
D
E
Number
16
40
1
1
1
4
4
1
1
1
1
5
2
2
OSC1
R=91KΩ(Vcc=5V)
R=75KΩ(Vcc=3V)
I/O Interfaced with
I/O
I/O
O
O
O
O
O
O
R
I
I
I
-
-
Extension driver
Extension driver
Extension driver
Extension driver
OSC2
Power supply
Power supply
resistor clock
Oscillation
MPU
MPU
MPU
MPU
MPU
LCD
LCD
Clock
input
8/42
Select registers.
0: Instruction register (for write) Busy flag:
1: Data register (for write and read)
Select read or write.
0: Write
1: Read
Starts data read/write.
Four high order bi-directional tristate data bus
pins. Used for data transfer and receive
between the MPU and the ST7066U. DB7 can
be used as a busy flag.
Four low order bi-directional tristate data bus
pins. Used for data transfer and receive
between the MPU and the ST7066U.
These pins are not used during 4-bit operation.
Clock to latch serial data D sent to the
extension driver
Clock to shift serial data D
Switch signal for converting the liquid crystal
drive waveform to AC
Character pattern data corresponding to each
segment signal
Common signals that are not used are changed
to non-selection waveform. COM9 to COM16
are non-selection waveforms at 1/8 duty factor
and COM12 to COM16 are non-selection
waveforms at 1/11 duty factor.
Segment signals
Power supply for LCD drive
V
V
When crystal oscillation is performed, a resistor
must be connected externally. When the pin
input is an external clock, it must be input to OSC1.
CC
CC
address counter (for read)
: 2.7V to 5.5V, GND: 0V
- V5 = 10 V (Max)
OSC1
Function
OSC2
2001/03/01