49KB

HDM20216H-L
20 Character x 2 Lines, Large Character
Dimensional Drawing
Dimension tolerance: +/-0.3mm
Features
Character Format .......................................5x7 Dots with Cursor
Backlight....................................................................EL Optional
Options....TN/Gray STN/Yellow STN, 12 o’Clock/6 o’Clock View
Normal/Extended Temperature
Normal/Negative Displays
Block Diagram
D0 - D7
LCD
E
R/W
RS
VL
VDD
VSS
Physical Data
Module Size.....................................146.0W x 43.0H x 9.5T mm
Viewing Area Size.......................................123.0W x 23.0H mm
Weight...................................................................................50g
Absolute Maximum Ratings
PARAMETER
MIN
MAX
SUPPLY VOLTAGE FOR LCD
VDD -VO
-0.3
13.5
V
INPUT VOLTAGE
VIN
VSS
VDD
V
OPERATING TEMPERATURE
TOP
0
50
°C
STORAGE TEMPERATURE
TSTG
-20
70
°C
6.5
V
Electrical Characteristics (VDD=5.0±0.25V 25°C)
INPUT LOW VOLTAGE
VIH
or
60
EQUIVALENT
4
DRIVER X2
SYMBOL
LEVEL
FUNCTION
1
VSS
-
0V
2
VDD
-
5V
3
VL
-
-
4
RS
H/L
H: Data input
L: Instruction data input
5
R/W
H/L
H: Data read
L: Data write
6
E
H,H→L
Enable signal
7
D0
H/L
CONDITION
MIN
TYP
MAX
UNIT
8
D1
H/L
-
2.2
-
-
V
9
D2
H/L
V
10
D3
H/L
11
D4
H/L
12
D5
H/L
13
D6
H/L
14
D7
H/L
15
NC
No Connection
16
NC
No Connection
VIL
-
OUTPUT HIGH VOLTAGE
VOH
IOH=0.2mA
2.4
-
-
V
OUTPUT LOW VOLTAGE
VOL
IOL=1.2mA
-
-
0.4
V
POWER SUPPLY CURRENT
IDD
VDD=5.0V
-
-
2.0
mA
POWER SUPPLY FOR LCD
VDD -VL
TA=25°C
4.3
4.7
5.1
V
DRIVE METHOD
40
HD44780
PIN NO.
0
INPUT HIGH VOLTAGE
SEG
LCD PANEL
UNIT
VDD -VSS
SYM
16
Pin Connections
SYMBOL
SUPPLY VOLTAGE
PARAMETER
COM
CONTROLLER
-
1/16 Duty
-
.6
Page 63
Data bus
Power supply