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HC4021系列
 

字符液晶模块

  HC4021系列
 

1.40*2字符液晶

2.并口通讯,3.3v/5V供电可选

3.黄绿模式和蓝模式可选

   

型号 规格 模块大小 显示尺寸 字符大小 电压 接口 控制器 背光 工作温度 PDF
HC4021系列 40*2 182.0*33.5 154.4*16.5 3.20*5.55 3.3/5v 串并口可选 KS0066U or equivalent LED -20-+70度
+ 产品资料

PIN CONNECTIONS

Pin

Symbol

Level

Function

1

VSS

0V

GND

2

VDD

+5.0V

Power Supply for logic

3

VO

--

Operating voltage for lcd

4

RS

H/L

“H” Data, “L”Instruction code

5

R/W

H/L

“H”Read,“L”Write

6

E

H-L

Enable signal

7

DB0

H/L

Data bus line

8

DB1

H/L

9

DB2

H/L

10

DB3

H/L

11

DB4

H/L

12

DB5

H/L

13

DB6

H/L

14

DB7

H/L

15

LEDA

+5.0V

Power Supply for LED backlight

16

LEDK

0V

NOTES:
1. Built-in controller(SPLC780D1 or Equivalent)
2. LED can be driven by pin15,pin16 or A and K

  MECHANICAL DATA
Item

Nominal Dimensions

Unit

Module Size(W x H x T)

182.0 x 33.5 x 13.6

mm

Viewing Area(W x H)

154.4 x 16.5

mm

Character Size(W x H)

3.20 x 5.55

mm

Dot Size(W x H)

0.60 x 0.65

mm

ABSOLUTE MAXIMUM RATINGS
Item

Symbol

Min.

Max.

Unit

Supply Voltage(Logic)

VDD-VSS

-0.3

7.0

V

Supply Voltage(LCD)

VDD-V0

-0.3

13.0

V

Input Voltage

VI

-0.3

VDD+0.3

V

Operating Temp.

TOPR

-20

70

oC

Storage Temp.

TSTG

-30

80

oC

ELECTRICAL CHARACTERISTICS(VDD=5.0V, Ta=25 oC)
Item

Symbol

Min.

Typ.

Max.

Unit

Input High Voltage

VIH

2.2

--

VDD

V

Input Low Voltage

VIL

-0.3

--

0.6

V

Output High Voltage

VOH

2.4

--

VDD

V

Output Low Voltage

VOL

0

--

0.4

V

Supply Current

IDD

--

6.0

--

mA

LCD Drining Voltage

VDD-V0

--

4.6

--

V

LED BACKLIGHT SPECIFICATIONS(Ta=25 oC)
Item

Forward Voltage

Forward Current

YELLOW-GREEN

4.2V

220mA

WHITE

3.1V

30mA