PT6520 Datasheet, PDF (7/27 Pages) Texas Instruments – 8-A 5-V/3.3-V Input Adjustable ISR with Short-Circuit protection

LCD Driver IC
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PT6520
PIN DESCRIPTION
Pin Name
DB0 ~ DB7
A0
RES
OSC1
E/RD
RW/WR
OSC2
FR
SEG0 ~ SEG60
COM0 ~ COM15
COM31 ~COM16
M/S
VDD
VSS
V1, V2, V3, V4, V5
Function
Data input
Selection display data or instructions.
High: Display data. Low: Instruction.
Reset the system and selects the interface type for a 68 port/80 port
MPU.
High: 68 port MPU interface.
Low: 80 port MPU interface.
(edge trigger)
Oscillation input pin
Read/Write Enable signal when a 68 port MPU is connected.
(Active-Low read enable signal when an 80 port MPU is connected)
Read/Write select signal when a 68 port MPU is connected.
High: read select. Low: write select.
(Active-Low write enable input when an 80 port MPU is connected.
Rising edge sensing)
Oscillation output pin
LCD Frame (AC-conversion) signal input/output
Segment output for driving the LCD
Common output for driving the LCD
Common output for driving the LCD
Master/Slave select signal
5V power supply
0V power supply (GND level)
Power supplies for driving the LCD, VDD>V1>V2>V3>V4>V5
Note:
1. This is an example of PT6520 family pin assignment. The modified pin names are
given below.
Product Name
74
Pin/Pad Number
75
96 ~ 100, 1~ 11
93
94
95
PT6520
OSC1 OSC2 COM0 ~ COM15 M/S
V4
V1
PT6520 V1.6
-7-
February, 2006