GU256X64F-9372

RoHS 2002/95/EC VACUUM FLUORESCENT DISPLAY MODULE SPECIFICATION MODEL： GU256X64F-9372 SPECIFICATION NO. : DS-1470-0001-00 DATA OF ISSUE : January 26, 2009 REVESION : PUBLISHED BY NORITAKE ITRON CORP. / Japan This specification is subject to change without prior notice. This product complies with RoHS Directive 2002/95/EC GU256X64F-9372 1/15 1.General Description 1.1 Scope This specification covers the operating requirements of vacuum fluorescent graphic display module GU256X64F-9372. Applied reliability spec: Applied production spec: TT-99-3102 TT-98-3413 1.2 Construction The module consists of a 256x64 dot graphic CIG-VFD, refresh RAM, character generator, DC/DC converter, display controller, and all necessary control logic. The module can simultaneously display graphic patterns and /or characters in a screen of the VFD. 2. Absolute Maximum Ratings Parameter Symbol Min. Typ. Max. Unit Power Supply Voltage VCC 0 - +5.5 VDC Logic Supply Voltage VIN 0 - Vcc+0.3 VDC Parameter Symbol Min. Typ. Max. Unit Power Supply Voltage VCC 4.75 5.0 5.25 VDC 3. Electrical ratings 4. Electrical Characteristics Measuring Conditions : TA (Ambient temperature) = 25degrees, VCC =5.0VDC Parameter Logic Input Voltage Logic Output Voltage Power Supply Current Symbol Min. Typ. Max. Unit Condition Note "H" VIH 0.7Vcc － Vcc VDC - - "L" VIL － － 0.8 VDC - - "H" VOH 4.2 － － VDC IOH=－40μA "L" VOL － － 0.5 VDC IOL=1.6mA ICC1 － 1.2 1.6 A - (1) ICC2 － 0.9 1.2 A - (2) Note (1),(2) ICC1 shows the cuurent when all dots in the screen are on and ICC2 at all dots off. At power on in rush, more than 2times current of above table should be expected. Provide the quick rise type power supply ( 64dots 03FFH 037FH 02FFH 027FH 01FFH 017FH 00FFH 007FH 03AAH 032AH 02AAH 022AH 01AAH 012AH 00AAH 002AH 03A9H 0329H 02A9H 0229H 01A9H 0129H 00A9H 0029H 0381H 0301H 0281H 0201H 0181H 0101H 0081H 0001H 0380H 0300H 0280H 0200H 0180H 0100H 0080H 0000H 64dots 07FFH 07FEH 07FDH 07FCH 07FBH 07FAH 07F9H 07F8H 07F7H 07F6H 07F5H 07F4H 07F3H 07F2H 07F1H 07F0H 0017H 0016H 0015H 0014H 0013H 0012H 0011H 0010H 000FH 000EH 000DH 000CH 000BH 000AH 0009H 0008H 0007H 0006H 0005H 0004H 0003H 0002H 0001H 0000H D0 D1 D2 D3 D4 D5 D6 D7 GU256X64F-9372 10/15 10.Blanking Display will be turned off without changing any other register setting or modes, when BL is “0” level. There are no change in the RAM during blanking, previous display will be recovered by BL=”1”. 11.Address Map 11.1 Graphic Display < Above map shows in the case of 0000H of start address. > 11.2 Character Display 256dots GU256X64F-9372 11/15 12.Test Mode Test Mode is set by keeping TEST low for more than 100mS at power on or initialize. During Test Mode, all dots are on automatically, and no any data are acceptable. 13.Interfacing CS 0 0 WR 0→1 0→1 RD 1 1 C/D 1 0 BL ― ― Function Command write(Host system→ Module) Data Setting (Disp. data, Address) (Host system → Module) 0 1 0 1 ― ……………………………… 0 1 0 0 ― Display data read(Host system ← Module) 0 Display Blanking ― ― ― ― Since data execution time of the module is 2us (Max.), there are no BUSY or READY output. Therefore more than 2us time period is required between module access. [An example of interfacing] D0~D7 Data Bus Address A0～A12 HOST SYSTEM CPU Z80etc Decoder D0~D7 CS C/D A0 WR WR RD RD Port BL Port FRP Vcc GND Vcc MODULE GU256X64 GND Vcc GROUND CAUTION : Because of adoption of C-MOS input logic in the module, shorter than 30cm cable length between a host system and the module is kindly suggested for free from permanent damages caused by noise. GU256X64F-9372 12/15 14.Timing Chart 14.1Write Operation CS Min. 0nS WR Min. 100ns Min. 100ns DATA Min. Min. 0ns Min. 20ns Min. 100ns 50ns C /D CS WR Min. 2μs 14.2 Read Operation CS RD Min. 0ns Min. 130ns Min. 10ns Max. 50ns DATA C/D Min. Min. 130ns 50ns CS RD Min. 0ns Min. 2μs 14.3 Output Timing of FRP FRP Typ.81μs Typ.10.4ms GU256X64F-9372 13/15 15.Pin Assignment 15.1 Signal Connector 25PIN 1PIN 26PIN 2PIN Pin No. Description Pin No. Description 1 3 5 7 9 11 13 15 17 D7 D6 D5 D4 D3 D2 D1 D0 WR 2 4 6 8 10 12 14 16 18 GND GND GND GND GND GND GND GND GND 19 C/D 20 GND 21 RD 22 GND 23 CS FRP 24 GND 26 BL 25 15.2 Power Connector 3PIN Pin No. 1 2 3 2PIN 1PIN Description +5V(VCC) TEST GND CAUTION !: Supplying of VCC (+5V) is available from the connector 1 or connector 2 since VCC and GND lines are tied in the module respectively, however, in the case of supplying the VCC from the connector 1 only, the post header of connector 2 is exposed. Careful handling around the connector 2 is required. GU256X64F-9372 14/15 16. Outline Dimension GU256X64F-9372 15/15 Notice for the Cautious Handling VFD Modules Handling and Usage Precautions: Please carefully follow the appropriate product application notes for proper usage, safety handling, and operation standards for maximum performance. [VFD tubes are made of glass] • Because the edges of the VFD glass-envelop are not smooth, it is necessary to handle carefully to avoid injuries to your hands • Please avoid breaking the VFD glass-envelop to prevent injury from sharp glass particles. • The tip of the exhaust pipe is fragile so avoid shock from impact. • It is recommended to allow sufficient open space surrounding the exhaust pipe to avoid possible damage. • Please design the PCB for the VFD-module within 0.3 mm warping tolerance to avoid any forces that may damage the display due to PCB distortion causing a breakdown of the electrical circuit leading to VFD failure. [High voltage] • Avoid touching conductive electrical parts, because the VFD-module uses high voltage exceeding 30～100 volts. • Even when electric power is turned off, it may take more than one minute for the electrical current to discharge. [Cable connection] • Do not unplug the power and/or data cables of VFD-modules during operating condition because unrecoverable damage may result. • Sending input signals to the VFD-module during a power off condition sometimes causes I/O port damage. • It is recommended to use a 30 cm or shorter signal cable to prevent functional failures. [Electrostatic charge] • VFD-modules need electrostatic free packaging and protection from electrostatic charges during handling and usage. [Structure] • During operation, VFD and VFD-modules generate heat. Please consider sufficient heat radiation dissipation using heat sink solutions. • We prefer to use UL grade materials or components in conjunction with VFD-modules. • Wrap and twist motion causes stress and may break VFDs & VFD modules. Please adhere to allowances within 0.3mm at the point of attachment. [Power] • Apply regulated power to the VFD-module within specified voltages to protect from failures. • Because some VFD-modules may consume in rush current equal to twice the typical current at power-on timing, we recommend using a sufficient power capability and quick starting of the power regulator. • VFD-module needs a specified voltage at the point of connection. Please use an adequate power cable to avoid a decrease in voltage. We also recommend inserting a power fuse for extra protection. [Operating consideration] • Illuminating phosphor will decrease in brightness during extended operation. If a fixed pattern illuminates for an extended period,( several hours), the phosphor efficiency will decrease compared to the non operating phosphor causing a non uniform brightness among pixels. Please consider programming the display patterns to use all phosphor segments evenly. Scrolling may be a consideration for a period of time to refresh the phosphor condition and improve even illumination to the pixels. • We recommend using a signal cable 30cm or less to avoid some possible disturbances to the signal. [Storage and operating environment] • Please use VFD-modules under the recommended specified environmental conditions. Salty, sulfur and dusty environments may damage the VFD-module even during storage. [Discard] • Some VFDs contain a small amount of cadmium in the phosphor and lead in the solder. When discarding VFDs or VFD-modules, please adhere to governmental related laws or regulations. [Others] • Although the VFD-module is designed to be protected from electrical noise, please plan your circuitry to exclude as much noise as possible. • Do not reconstruct or repair the VFD-module without our authorization. We cannot assure the quality or reliability of unauthorized reconstructed VFD-modules. Notice: ･We do not authorize the use of any patents that may be inherent in these specifications. ･Neither whole nor partial copying of these specifications are permitted without our approval. If necessary, please ask for assistance from our sales consultant. ･This product is not designed for military, aerospace, medical or other life-critical applications. If you choose to use this product for these applications, please ask us for prior consultation or we cannot take responsibility for problems that may occur.