Purdy AND1781FST-LED Manual do Utilizador descarregar pdf (Página 2)

Displays

Purdy Electronics Corporation • 755 North Pastoria Avenue • Sunnyvale, CA 94085-2918

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

11/07/12

Optical Speciﬁcations

Item Symbol Condition Min. Typ. Max. Degree

Viewing Angle Range (V) θ Cr ≥ 2 30 — 60 degree

(H) ψ -45 — 45 degree

Contrast Ratio CR — 5 —

Response Time T rise — 200 300 ms

T fall — 200 300 ms

AND1781FST-LED

Intelligent Character Display

Electrical Characteristics

Item Symbol Condition Min. Typ. Max. Unit

Supply Voltage for Logic VDD-VSS – 4.75 5.0 5.25 V

Supply Voltage for LCD VDD-V0

Ta = -20ºC — — 13.9 V

Ta = 25ºC 12.1 12.5 12.9 V

Ta = +70ºC 10.1 — — V

Input High Voltage VIH — VDD-2.2 — VDD V

Input Low Voltage VIL — 0 — 0.8 V

Output High Voltage VOH — VDD-0.3 — VDD V

Output Low Voltage VOL — 0 — 0.3 V

Supply Current IDD VDD=5V 12 16 20 mA

Interface Pin Assignment

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

1 FG Frame Ground (Connected to bezel) — 11 DB0 Data Bus Line H/L

2 VSS Ground — 12 DB1 Data Bus Line H/L

3 VDD Power Supply — 13 DB2 Data Bus Line H/L

4 V0 Power Supply for LCD Driver — 14 DB3 Data Bus Line H/L

5 WR Data write. Write data into T6963 when

WR=L

L 15 DB4 Data Bus Line H/L

6 RD Data read. Read data from T6963 when

RD=L

L 16 DB5 Data Bus Line H/L

7 CE L: Chip Enable L 17 DB6 Data Bus Line H/L

8 C/D 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

H/L 18 DB7 Data Bus Line H/L

9 Vee Negative Voltage — 19 FS

H:Pins for selection of font; H: 6*8,

L: 8*8

H/L

10 RESET H: Normal; L: Initialize T6963 H/L 20 N/C No connection —

1 2 3 4 5

Displays 1

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