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Publicado: 7 de marzo de 2013
Application Notes
Intelligent Alphanumeric Application Notes Intelligent Alphanumeric Displays
Interface Specifications
Specifications for AND Intelligent Alphanumeric displays are given in this section. The LCD controller used is the HD44780 or equivalent. • • • • • • • • • • AND671GST/GST-LED AND471GST/GST-LED AND481GST/GST-LED AND491GST/GST-LED AND501GST/GST-LED AND731GST/GST-LEDAND771GST/GST-LED AND721GST/GST-LED AND591GST/GST-LED AND791GST/GST-LED 16 characters x 1 line 16 characters x 2 lines 16 characters x 2 lines 16 characters x 2 lines 20 characters x 2 lines 16 characters x 4 lines 24 characters x 2 lines 20 characters x 4 lines 40 characters x 2 lines 40 characters x 4 lines Terminal Characteristics Input Terminal E Input Terminals RS, R/W
Terminal Characteristics I/OTerminals DB0 to DB7
Connector Pin Assignments (except for AND791GST) Pin No. Signal Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15* 16* GND VDD VO RS R/W E DBO DB1 DB2 DB3 DB4 DB5 DB6 DB7 LED LED LED Anode (For LED option) LED Cathode (For LED option) Data Bus DB0-DB7 is for 8 bit operation Ground +5 Power Supply LCD Drive Voltage “H” Data Input “L” Command Input Read/Write Enable When input isat the intermediate level with CMOS, excessive current flows through the input circuit to the power supply. To avoid this, input level must be fixed at high or low.
* See specific mechanical drawing for details.
2
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086 Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com
12/17/99
www.purdyelectronics.com Intelligent Alphanumeric Application Notes
Character Position and Character Address
For each device, the relationship between character position and character address is straightforward. A hexadecimal code for each character position in each device is given in the following charts. Character positions are numbered from left to right beginning in the top left corner as you view the devicefrom the front. AND671
Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 00 01 02 03 04 05 06 07 40 41 42 43 44 45 46 47
AND491, 481, 471
Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Character Position 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F DD RAM (Hex) Add. 40 41 42 43 44 45 46 4748 49 4A 4B 4C 4D 4E 4F
AND501
Character Position DD RAM (Hex) Add. Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53
AND731
Character Position 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 Character Position 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 DD RAM (Hex) Add. 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F Character Position 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DD RAM (Hex) Add. 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F Character Position 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
DD RAM (Hex) Add. 40 41 42 43 44 45 46 47 48 49 4A 4B4C 4D 4E 4F
DD RAM (Hex) Add. 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F
AND771
Character Position DD RAM (Hex) Add. Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 40 41 42 43 44 45 46 47 4849 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57
AND591
Character Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DD RAM (Hex) Add. 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0E 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 Character Position 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58...
Intelligent Alphanumeric Application Notes Intelligent Alphanumeric Displays
Interface Specifications
Specifications for AND Intelligent Alphanumeric displays are given in this section. The LCD controller used is the HD44780 or equivalent. • • • • • • • • • • AND671GST/GST-LED AND471GST/GST-LED AND481GST/GST-LED AND491GST/GST-LED AND501GST/GST-LED AND731GST/GST-LEDAND771GST/GST-LED AND721GST/GST-LED AND591GST/GST-LED AND791GST/GST-LED 16 characters x 1 line 16 characters x 2 lines 16 characters x 2 lines 16 characters x 2 lines 20 characters x 2 lines 16 characters x 4 lines 24 characters x 2 lines 20 characters x 4 lines 40 characters x 2 lines 40 characters x 4 lines Terminal Characteristics Input Terminal E Input Terminals RS, R/W
Terminal Characteristics I/OTerminals DB0 to DB7
Connector Pin Assignments (except for AND791GST) Pin No. Signal Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15* 16* GND VDD VO RS R/W E DBO DB1 DB2 DB3 DB4 DB5 DB6 DB7 LED LED LED Anode (For LED option) LED Cathode (For LED option) Data Bus DB0-DB7 is for 8 bit operation Ground +5 Power Supply LCD Drive Voltage “H” Data Input “L” Command Input Read/Write Enable When input isat the intermediate level with CMOS, excessive current flows through the input circuit to the power supply. To avoid this, input level must be fixed at high or low.
* See specific mechanical drawing for details.
2
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086 Tel: 408.523.8200 • Fax: 408.733.1287 • email@purdyelectronics.com
12/17/99
www.purdyelectronics.com Intelligent Alphanumeric Application Notes
Character Position and Character Address
For each device, the relationship between character position and character address is straightforward. A hexadecimal code for each character position in each device is given in the following charts. Character positions are numbered from left to right beginning in the top left corner as you view the devicefrom the front. AND671
Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 00 01 02 03 04 05 06 07 40 41 42 43 44 45 46 47
AND491, 481, 471
Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Character Position 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F DD RAM (Hex) Add. 40 41 42 43 44 45 46 4748 49 4A 4B 4C 4D 4E 4F
AND501
Character Position DD RAM (Hex) Add. Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53
AND731
Character Position 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 Character Position 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 DD RAM (Hex) Add. 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F Character Position 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DD RAM (Hex) Add. 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F Character Position 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
DD RAM (Hex) Add. 40 41 42 43 44 45 46 47 48 49 4A 4B4C 4D 4E 4F
DD RAM (Hex) Add. 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F
AND771
Character Position DD RAM (Hex) Add. Character Position DD RAM (Hex) Add. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 40 41 42 43 44 45 46 47 4849 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57
AND591
Character Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DD RAM (Hex) Add. 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0E 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 Character Position 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58...
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