Displays, And1743fst-led intelligent character display – Purdy AND1743FST-LED User Manual
Page 3

Displays
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
Tel: 408-523-8200 • Fax: 408-733-1287 • [email protected] •
www.purdyelectronics.com
03/13/11
3
Interface Pin Assignment
Pin No. Pin Out
Level
Function Description
Pin No Pin Out Level
Function Description
1
FGND
–
For Ground
11
DB0
H/L
Data Bit 0
2
VSS
0V
Power Supply Ground
12
DB1
H/L
Data Bit 1
3
VDD
5V
Power Supply Voltage
13
DB2
H/L
Data Bit 2
4
VO
–
Contrast Adjustment Voltage
14
DB3
H/L
Data Bit 3
5
/WR
L
Data Write
15
DB4
H/L
Data Bit 4
6
/RD
L
Data Read
16
DB5
H/L
Data Bit 5
7
/CE
L
Enable Signal
17
DB6
H/L
Data Bit 6
8
C/D
H/L
Wr = “l”, C/D = “H”: Command Write; WR = “L”, C/D = “L:”:
Data Write; RD = “L”, C/D = “H”: Status Read; RD = “L”,
C/D = “L”: Data Read
18
DB7
H/L
Data Bit 7
9
NC
–
No Connection
19
FS
H/L
H: 6*8/L: 8*8 Select of font
10
/RST
L
Reset Signal
20
NC
H/L
No Connection
Block Diagram
AND1743FST-LED
Intelligent Character Display
Power Supply