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IN44780 데이터시트 PDF




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부품번호 IN44780 기능
기능 DOT MATRIX LIQUID CRYSTAL DISPLAY CONTROLLER & DRIVER
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IN44780 데이터시트, 핀배열, 회로
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TECHNICAL DATA
DOT MATRIX LIQUID CRYSTAL DISPLAY
CONTROLLER & DRIVER
IN44780
FEATURES
Internal Memory
- Character Generator ROM: 8320 bits
- Character Generator RAM: 512 bit
- Display Data RAM: 80 x 8 bits for 80 digits
Internal automatic reset circuit at power ON
Internal oscillation circuit
Power Supply Voltage: +5V ± 10%
LCD Driving Voltage for display: 0 ~ -5V(V5)
Duty factor selection (sselected by programs)
1/8 duty: 5 x 7 dots format 1 line,
1/11 duty: 5 x 10 dots format 1 line
1/16 duty: 5 x 7 dots format 2 line
Bare chip available
Pin-to-Pin replacement for KS0066, HD44780,
SED1278
FUNCTION
Character type dot matrix LCD driver & controller
Internal driver: 16 common and 40 segment signal output
Display character format: 5 x 7 dots + cursor,
5 x 10 dots + cursor
Easy interface with a 4-bit or 8-bit MPU
Display character pattern:
5 x 7 dots format: 192 kinds, 5 x 10 dots format: 32 kinds
The special character pattern can be programmable by
Character Generator RAM directly
A customer character pattern can be programmable by mask
option
Wide range of instruction function:
Display clear, Cursor home, Display ON/OFF, Display shift
Cursor ON/OFF, Display character blink, Cursor shift
DESCRIPTION
DataSheet4U.com
The IZ44780 is a dot matrix liquid crystal display controller & driver LSI that displays alphanumerics,
characters and symbols.
It drives dot matrix LCD under microcomputer control. All functions needed for dot matrix LCD drive are internally
provided
on one chip.
DataShee
ODERING INFORMATION
Type
IZ44780 – 00
English
IZ44780 – 01
English
IZ44780 – XX
CGROM
Numberal
Numberal
Custom font (XX – ROM code)
Russian
Japanese
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Value
Power Supply Voltage
Driver Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
VDD
V1 ~ V5
VI
Ta
Tstg
- 0.3 ~ 7.0
VDD - 13.5 ~ VDD + 0.3
-0.3 ~VDD + 0.3
- 20 ~ + 75
- 55 ~ + 125
Notes: Must keep the relation of VDD V1 V2 V3 V4 V5
Unit
V
V
V
oC
oC
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IN44780 pdf, 반도체, 판매, 대치품
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IZ44780
Resistor circuit
OSC1
OSC2
Rf
Rf: 91k+ 2%
External clock circuit
OSC1
OSC2
Frequency input
open
et4U.com
*2). Input the voltage listed in table below to V1 ~ V5
Duty
1/8, 1/11
Bias 1/4
Power supply
V1 VDD – VLCD/4
V2 VDD – VLCD/2
V3 VDD – VLCD/2
V4 VDD – 3VLCD/4
V5 VDD – VLCD
*VLCD is the LCD driving voltage, refer to the initial set of the instruction code.
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AC CHARACTERISTICS (VDD = 5V, VSS = 0V, Ta = 25oC)
(1) Write mode (Writing data from MPU to IZ44780)
Characteristic
E Cycle Time
E Rise Time
E Fall Time
E Pulse Width (High, Low)
R/W and RS Set-up Time
R/W and RS Hold Time
Data Set-up Time
Data Hold Time
Symbol
tC
tR
tF
tW
tSU1
tH1
tSU2
tH2
Test pin
E
E
E
E
R/W, RS
R/W, RS
DB0 ~ DB7
DB0 ~ DB7
Min
500
220
40
10
60
10
1/16
1/5
VDD – VLCD/5
VDD – 2VLCD/5
VDD – 3VLCD/5
VDD – 4VLCD/5
VDD – VLCD
DataShee
Typ
Max
Unit
ns
25 ns
25 ns
ns
ns
ns
ns
ns
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IN44780 전자부품, 판매, 대치품
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IZ44780
et4U.com
TERMINAL DESCRIPTION
Pin
VDD
VSS
V1 – V5
SEG1–
SEG40
COM1–
COM16
OSC1
OSC2
CLK1
CLK2
M
D
INPUT/OUTPU
T
Power
Output
Name
Operating Voltage
Negative Supply
Voltage
Segment output
DESCRIPTION
For logical circuit (+5V ± 10%)
0V(GND)
Bias voltage level for LCD driving
Segment signal output for LCD driving
INTERFACE
Power
Supply
LCD
Output
Common output
Common signal output for LCD driving LCD
Input
Output
Output
Oscillator
Both pin connected to Rf resistor or
ceramic resonator for internal oscillator
circuit. In case of external frequency use
only, the frequency is input to OSC1
terminal.
Data latch clock
Clock output terminal for the serially
transferred data to be latched to the driver.
Data shift clock
Clock output terminal used when D
terminal data output shifts the inside of the
driver.
Alternated signal The alternating signal to convert LCD
for LCD driver
drive waveform to AC.
output
Display data DataShCeheat4raUc.tceropmattern data, which is
interface
corresponding to each common signal, is
supplied to driver serially.
High
Selection
Low Non selection
Resistor or
Ceramic
Resonator
HD44100,
KS0065,
IZ0065
DataShee
E Input
R/W
Enable
Read/Write
Start anable signal to read or write the data
R/W signal input is used to select the
read/write mode
High
Read mode
Low Write mode
MPU
RS
Register select
Register selection input
High Data register (for read
and write)
Low Instruction register (for
write), Busy flag,
address counter (for
read)
DB0
DB7
Input/Output
Data interface
Used for data transfer between the MPU
and IZ44780. These terminals are for data
bus with bidirectional three-state.
Initial 4 bit (DB0-DB3) are not used during
4 bit operation (DB7 can be used as a busy
flag)
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