APPLICATION NOTE AN-E-2224 VACUUM FLUORESCENT DISPLAY MODULE CHARACTER DISPLAY MODULE M202MD07HB INSTRUCTION MANUAL GENERAL DESCRIPTION Futaba Vacuum Fluorescent Display Module M202MD07HB, with Futaba VFD 202MD-07GR display, produces 20 digits on 2 rows. Each character is displayed in 5×7 dot matrix. Consisting of a VFD, one chip controller, driver IC, the module can be connected directly to the system bus, thus simplifying interfacing. The bright and aesthetically pleasing VFD makes the module desirable for application in office equipment’s, computer terminals, measuring equipment, etc. ! Important Safety Notice Please read this note carefully before using the product. Warning • The module should be disconnected from the power supply before handling. • The power supply should be switched off before connecting or disconnecting the power or interface cables. • The module contains electronic components that generate high voltages which may cause an electrical shock when touched. • Do not touch the electronic components of the module with any metal objects. • The VFD used on the module is made of glass and should be handled with care. When handling the VFD, it is recommended that cotton gloves be used. • The module is equipped with a circuit protection fuse. • Under no circumstances should the module be modified or repaired. Any unauthorized modifications or repairs will invalidate the product warranty. • The module should be abolished as the factory waste. AN-E-2224 [Important Safety Notice] 1. FEATURES 1-1. One chip controller is equipped on the module and it realizes intelligent terminal. The module can be connected to the bus directly. 1-2. Two hundred and twenty-for character fonts consisting of alphabets, numeral and other symbols can be displayed. 1-3. By using dimming function, luminance can be controlled into six levels. 1-4. Since a DC/DC converter is included, only 5Vdc power source is required to operate the module. 1-5. High quality and reliability, also long life can be achieved with FUTABA VFD. 1-6. Compact, light weight and thin design by using SMART (Surface Mount And Reflow Technology) provides excellent built-in capability. 1-7. Either parallel or serial input interface can be selected. In case of serial input, it is possible to choose 1200, 2400, 2400, 7812.5, 9600, 15625, 31250 and 62500 bps. AN-E-2224 [1/15] 2. GENERAL SPECIFICATIONS 2-1. DIMENSIONS, WEIGHT (Refer FIGURE-1) Item Specification (L) 190±0.5 (W) 64±0.5 (T) 25 Max. 210 Outer Dimension Weight Table-1 Unit mm g 2-2. SPECIFICATIONS OF THE DISPLAY PANEL (Refer FIGURE-4) Table-2 Item Display Area Number of Digits Specification 146.1×29.0 20 digits (5×7)×2 rows 10.5×5.5 15.5×7.4 Green (λp=505nm) Digits Size (H×M) Digits Pitch (H×M) Color of Illumination Unit mm − mm mm − 2-3. ENVIRONMENT CONDITIONS Table-3 Item Operating Temperature Storage Temperature Operating Humidity Storage Humidity Vibration (10 to 55 Hz) Shock Symbol Topr Tstg Hopr Hostg Min. -20 -20 20 20 − − − − Max. +70 +70 85 90 4 40 Unit °C °C % % G G Note) Avoid operations and or storage in moist environmental conditions. 2-4. ABSOLUTE MAXIMUM RATINGS Table-4 Item Supply Voltage Input Signal Voltage Symbol Vcc VIS Min. -0.3 -0.3 AN-E-2224 [2/15] Max. 6.5 Vcc+0.3 Unit Vdc V 2-5. RECOMMENDED OPERATING CONDITIONS Table-5 Item Supply Voltage H-Level Input Voltage L-Level Input Voltage Symbol Vcc VIH VIL Condition − Vcc=5Vdc Vcc=5Vdc Min. 4.5 3.5 0 Typ. 5.0 − − Max. 5.5 5.0 1.5 Unit Vdc V V 2-6. ELECTRICAL CHARACTERISTICS Table-6 Item Supply Current Power Consumption Symbol Icc Condition Min. − Vcc=5Vdc All Dos on Luminance L H-Level Input Current IIH L-Level Input Current IIL H-Level Output Voltage VOH L-Level Output Voltage VOL Vcc=5.5Vdc VIH=5.5V Vcc=5.5Vdc VIL=0V Vcc=4.5Vdc IOH=-0.5mA Vcc=5.5Vdc IOL=0.5mA AN-E-2224 [3/15] − − 350 (102) Typ. 1.0 5.0 700 (204) Max. 1.5 − Unit A W cd/m2 (fL) − − 1 µA -0.22 -0.11 -0.05 mA 3.6 − − V − − 0.9 V − M202MD07HB OUTER DIMENSIONS FIGURE-1 AN-E-2224 [11/15] D0 ∼ AN-E-2224 [12/15] SEL TEST BUSY RST SEL TEST BUSY RESET GND Vcc(+5V) WR WR Hvcc GCLK GD BLKO CONVERTER DC/DC CONTROLLER SD SEG1 ∼ SEG36 D0 ∼ D7 XT XT RXD D7 X1 GRID DRIVER FILAMENT (VFD) GRID DRIVER (40bits) GRID 1-40 20digits×2rows 5×7dots+Triangle mark 202-MD-07G M202MD07HB CIRCUIT BLOCK DIAGRAM FIGURE-2 M202MD07HB DISPLAY CHARACTER CODE FIGURE-3 D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 2 3 4 5 6 7 8 9 A B C D E F DP SP 0 0 0 0 0 0 0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 1 0 0 4 0 1 0 1 5 0 1 1 0 6 0 1 1 1 7 1 0 0 0 8 BS TON 1 0 0 1 9 HT TOF 1 0 1 0 A 1 0 1 1 B 1 1 0 0 C 1 1 0 1 D 1 1 1 0 E 1 1 1 1 F DIM DC TFF CLR ALD RST SP SP : SPACE AN-E-2224 [13/15] M202MD07HB DISPLAY PATTERN DETAIL FIGURE-4 29.0 7 .4 5 .0 1 4 6 .1 3.0 0 .3 0 .8 6 5 .5 0.35 1.2 10.5 AN-E-2224 [14/15]