AND671WGST-LED PURDY | Alldatasheet

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Technical content

Features

  • STN Positive Gray
  • Transfl ective Rear Polarizer
  • White LED Backlight
  • 12 O’clock Viewing Direction
  • Wide Temperature Range, 3.3V, Single Supply Voltage
  • Silver Frame
  • ROHS Compliant Electrical Absolute Maximum Ratings Item Symbol Min. Typ. Max. Unit Power Supply for Logic VDD - VSS -0.3 – 7.0 V Power Supply for LCD VDD - VSS -0.3 – 10.0 V Input VOltage VI -0.3 – VDD V LED Power Dissipation PAD – – 90 mW LED Forward Current IAF – – 24 mA LED Reverse Voltage VR – – 5 V Product specifi cations contained herein may be changed without prior notice. It is therefore advisable to contact Purdy Electronics before proceeding with the design of equipment incorporating this product. Mechanical Characteristics Item Standard Value Unit Viewing Area 65.0 (W) x 16.0 (H) mm Dot Size 0.56 (W) x 0.66 (H) mm Dot Pitch 0.60 (W) x 0.70 (H) mm Display Format 16 characters (W) x 2 lines (H) – Duty Ratio 1/16 Duty – Controller ST7066U or equivalent –

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408-523-8200 • Fax: 408-733-1287 • sales@purdyelectronics.com • www.purdyelectronics.com 6/20/112 Optical Specifi cations (Ta = 25 ºC) Item Symbol Remarks Min. Specifi cations Typ. Max. Units Viewing Angle Φ f (12 o’clock) When CR ≥ 1.4 – 20 – degΦ b (6 o’clock) – 40 – Φ l (9 o’clock) – 30 – Φ r (3 o’clock) – 30 – Rise Time Tr VDD-VO = 3.3 V Ta = 25ºC – 200 – mS Fall Time Tf – 250 – Frame Frequency Frm – 64 – Hz Contrast Cr – 3.0 – – Brightness of Backlight L IF = 20 mA 120 180 – cd/m2 Peak Emission Wavelength λ P x = 0.29 y = 0.30 x = 0.31 y = 0.32 x = 0.33 y = 0.34 nm Environmental Absolute Maximum Ratings Item Wide Temperature Operating Storage Min. Max. Min. Max. Ambient Temperature -20 ºC +70 ºC -30 ºC +80ºC Humidity (without condensation) Note 4, 5 Note 4,6 Note 4: Background color changes slightly depending on ambient temperature. This phenomenon is reversible. Note 5: Ta ≤ 70ºC: 75 RH max; Ta > 70ºC: absolute humidity must be lower than the humidity of 75% RH at 70ºC. Note 6: Ta at -30ºC will be <48 hrs, at 80ºC will be < 120 hrs when humidity is higher than 75%. AND671WGST-LED Intelligent Character Display

Electrical Characteristics

Item Symbol Condition Min. Typ. Max. Unit Power Supply for Logic VDD - VSS – 2.7 3.3 4.5 V Input Voltage VIL L Level 0 –- 0.6 V VIH H Level 2.2 — VDD V LCM Recommend LCD Module Driving Voltage VDD-VO Ta = 0ºC — — — V Ta=25ºC 2.7 3.3 4.5 Ta=50ºC — — — Power Supply Current for LCM IDD VDD = 3.3V, VDD-V0=3.3V — 2.0 3.0 mA LED Forward Voltage VF iF = 20 mA — 3.4 3.6 V LED Frward Current IF — — 20 — mA LED Reverse Voltage IR VR=5V — — 0.2 mA

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408-523-8200 • Fax: 408-733-1287 • sales@purdyelectronics.com • www.purdyelectronics.com 6/20/113 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 (-)

Intelligent Character Display Power Supply

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408-523-8200 • Fax: 408-733-1287 • sales@purdyelectronics.com • www.purdyelectronics.com 6/20/114 Mechanical Dimensions AND671WGST-LED Intelligent Character Display

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408-523-8200 • Fax: 408-733-1287 • sales@purdyelectronics.com • www.purdyelectronics.com 6/20/115 Timing Characteristics (Ta = 25 ºC, VCC = 2.7V) Symbol Characteristics Test Condition Specifi cations Units Min. Typ. Max. Internal Clock Operation fOSCfOSCf OSC Frequency R = 75KΩ 190 270 350 KHz External Clock Operation fEX External Frequency – 125 270 410 KHz Duty Cycle – 45 50 55 % TR, TF Rise/Fall Time – – – 0.2 μs Write Mode (Writing data from MPU to ST7066U) TC Enable Cycle Time Pin E 1200 – – ns TPW Enable Plus Time Pin E 460 – – ns TR, TF Enable Rise/Fall Time Pin E – – 25 ns TASTAST Address Setup Time Pins RS, RW, E 0 – – ns TAHTAHT Address Hold Time Pins RS, RW, E 10 – – ns TDSW Data Setup Time Pins: DB0 - DB7 80 – – ns TH Data Hold Time Pins: DB0 - DB7 10 – – ns Read Mode (Reading Data from ST7066U to MPU) TC Enable Cycle Time Pin E 1200 – – ns TPW Enable Pulse Width Pin E 480 – – ns TR, TF Enable Rise/Fall Time Pin E – – 25 ns TASTAST Address Setup Time Pins: RS, RW, E 0 – – ns TAHTAHT Address Hold Time Pins: RS, RW, E 10 – – ns TDOR Data Setup Time Pins: DB0 - DB& – – 320 ns TH Data Hold Time Pins: DB0 - DB7 10 – – ns

Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408-523-8200 • Fax: 408-733-1287 • sales@purdyelectronics.com • www.purdyelectronics.com 6/20/116 Read/Write Timing Chart