Purdy AND491GST3-3V-W-LED Manual do Utilizador descarregar pdf (Página 3)

Displays

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085

Tel: 408-523-8200 • Fax: 408-733-1287 • [email protected] • www.purdyelectronics.com

04/24/12

Interface Pin Assignment

Pin No. Pin Out Level Function Description Pin No Pin Out Level Function Description

1 VSS 0V Power Supply Ground 9 DB2 H/L Data Bit 2

2 VDD 3.3V Power Supply Voltage 10 DB3 H/L Data Bit 3

3 V0 — Contrast Adjustment 11 DB4 H/L Data Bit 4

4 RS H/L Register Select 12 DB5 H/L Data Bit 5

5 R/W H/L Read/ Write 13 DB6 H/L Data Bit 6

6 E H, H —>L Enable Signal 14 DB7 H/L Data Bit 7

7 DB0 H/L Data Bit 0 15 A 3.5V LED Power Supply (+)

8 DB1 H/L Data Bit 1 16 K 0V LED Power Supply (-)

Block Diagram

AND491GST3-3V-W-LED

Intelligent Character Display

Power Supply

1 2 3 4

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Purdy AND491GST3-3V-W-LED Manual do Utilizador Página 3