240*64 Mono Dot Matrix LCD Display, 240x64 Liquid Crystal Display, Mono LCD, ST7920

Item

Symbol

Min.

Typ.

Max

Unit

Supply Voltage For Logic

VDD-VSS

-0.3

-

5.5

V

Supply Voltage For LCD Drive

VDD-VO

0

-

7

V

Input Voltage

VI

-0.3

-

VDD

mA

Item

Symbol

Condition

Min.

Typ.

Max

Unit

Supply Voltage For Logic

VDD-VSS

-

4.5

5.0

5.5

V

Supply Voltage For LCD Drive

VDD-VO

VDD=5V, Ta=25℃

5.6

6.0

6.5

V

Supply Current

IDD

VDD=5V

-

16.0

25.0

mA

Input Voltage

“High” Level

VIH

-

2.2

-

VDD

V

“Low” Level

VIL

-

-

-

0.6

V

Output Voltage

“High” Level

VOH

-

2.4

-

-

V

“Low” Level

VOL

-

-

-

0.4

V

Pin No.

Symbol

LEVEL

Function

1

VSS

0V

Power Supply Ground

2

VDD

5V

Power Supply Voltage

3

VO

-

Contrast Adj

4

RS

H/L

Register Selection

5

R/W

H/L

Read/Write

6

E1

H，HèL

Enable Signal IC1

7

E2

H，HèL

Enable Signal IC2

8

DB0

H/L

Data Bus Line

9

DB1

H/L

Data Bus Line

10

DB2

H/L

Data Bus Line

11

DB3

H/L

Data Bus Line

12

DB4

H/L

Data Bus Line

13

DB5

H/L

Data Bus Line

14

DB6

H/L

Data Bus Line

15

DB7

H/L

Data Bus Line

16

A

4.2V

LED Power(+)

17

K

0V

LED Power(-)

18

NC

-

No Connection

19

NC

-

No Connection

20

NC

-

No Connection