DM2423 SANYO | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 9

Technical content

[Ordering number : EN%4413 D242 SANYO 24 Characters x 2 Lines Liquid Crystal Dot Matrix Display Module Preliminary Overview General Specifications The DM2423 is an LCD dot matrix display module that 1. Drive method: 1/16 duty, 1/5 bias (1/4 bias for the consists of an LCD panel and controller/driver circuits. STN version) It is capable of displaying two lines of 24 characters. 2. Display size: 24 characters x 2 lines The DM2423 module incorporates the control circuits, 3. Character structure: 5 x 8 dots “ data RAM, and character generator ROM required for 4. Display data RAM: 80 characters (80 x 8 bits) display. The DM2423 provides both 8-bit and 4-bit_ 5. Character generator ROM: 192 characters parallel interfaces, and allows the controlling (See table 1.) microprocessor 10 read and write data directly. 6. Character generator RAM: 8 characters (64 x 8 bits) 7. Instruction function: See table 2. 8. Circuit structure: See the block diagram. Mechanical Characteristics [Paani intr [isocwxas0 Hao Thirtesive dm | [118.0 (W) 380190 H:LED Wren di | [avewneaca =i Sasiwrseey Sd | | characterse | S200) xee5 tH) mm [Dorsze | osotmxossty rr | [Wien ————* etecver about eo TED abeuiso——SCSCSC~C~S~i Module Dimensions (unit: mm) 5012 ’ 61. 75 a - z $6.2 gx, or ee i Ba i Saal 1.6 eh ort ys 4 or lSe 1 SREP EERERRUEETERERBAREER Hers — tHE ail VCCCECOCCCCE CeCe 3 2 () ——,_) " 2.54 8 sess] a B21, shel = 4) BESpp Ber Fay) veo K(-) BEBES GEEES sae LED TYPE SANYO Electric Co., Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bldg, 1-10, 1 Chome, Ucno, Taito-ku, TOKYO, 110 JAPAN 71093TS No. 4413-19

Module Option Catalog Numbers 1234 DM2423—OA00 (Gs: first line) Liquid Crystal Characteristics (4: second line) Polarizers | | LCD ype oma ge | Supply specification [| TNiype | LEO mode | STN ype ° ™N 0 10 +50°C Single voltage supply | 6 o'clock S | Postive | Reflective type T Yellow 1 ™N 0 to +50°C Single voltage supply | 12 o'clock A | Positive } Transtlective type 1 Yellow

7 STN 0 to 450°C Single voltage supply | — B | Positive } Transmissive type Yellow

6 [-7777""" Refective type { Grey saps . . 4 Transtlective type } Grey (OO: third and fourth lines) Backlighting J Transmissive type Grey [| Backlighting U3 | LED illumination (ultra-green) L7_| LED iltumination (pure-green) Absolute Maximum Ratings at Ta = 25°C OT Logic supply voltage Voo - Vss 0.310 47.0 . TED supa volage BTV +s Electro-Optical Characteristics at Ta = 25°C, Vpp - Vgg = 5.0 40.25 V (unless otherwise specified) Parameter [min Typ max put igh evel voage [Vig 2 Toptlow eve! vaiage A [Ouparrighievelvolage ‘| Vow | ~a=02ma_ Sd fd? | Vd Outputlow evel volage [Wo [Toet2m Te [Susp eunert Sf 80 me | (1) TN type (Optical characteristics listed are for the reflective type, 6 o’clock viewing angle version as an example.) Parameter Condition Unit | renee | sm | cree ee | LGD dive volage Voo-Vo] @=20. [ Taso [ f 4e5 [Tv TT (reterence valves) on teor [Tanase [ae [as [ae Pv [ tazsore fof ars PT Response time Rise time e=20, | Tasoe [| 300 600s Figures 1 and2| on 180" [Tanase [| 10 [200 ms Fall time 4 G=20, | Tacoe [| aso 700 ms o= 100" [Tanase [7 [so 300 ms [Conwastraio TK enzo peter Ps Figures 2 anda Viewing angle range [ ez-e1 | ose: kota [20 [ao [| earees | (2) STN type (Optical characteristics listed are for the yellow mode reflective type as an example.) Parameter bol Condition [Rating Poe feel ee ee LCD drive voltage Voo-Vo| @=0° [Taso [Tar (erence values) [Tasso [a0 | «| ae] _v |_| [tassoc [| «a | dv | Response tne a [te=-oc |__| s00 | 600 | ms_|Figures rand Tan 2c [Of 100 200s | Fall ime eno | Tasoc PT 350 700 ns [Genvastvare Rn 0 res a No. 4413-29

@LED Backlight Characteristics (Note: Measured at the LED backlight element.) Absolute Maximum Ratings [Parana Stet [canton [Raine 0) [Reverse reckaownvarage «| Va tacase [TV [Powerdespamos P| Tanto | roo Sc Electro-Optical Characteristics Luminescence wavelength [Wee tne [we | mart — | wp) — [wm | we | mm 1 — ‘| Note: The maximum brightness values are reference values. LED Backlight Wiring Diagram ne ‘Cathode (-) weeeeeee Consists of 27 units of 2 chips in series, tor a total of 54 chips. ween eeee Anode (+) Characteristics Figure (representative sample) Note: L3 type log -Ta Relative brightness, |, i PT tty tt ty Ss 70 y a es ee Ne 4 § 50 IN N E 1.0 4 ee ee ieee or loIN_ LL) 6¢ Deere :™ N a] i] TU eT 2 al — IA} | 2 LA 2 200) 2 is. | ei 710 208008070 01, 7100 7 Ambient temperature, Ta °C Forward current, Ip-mA. a No. 4413-4/9

Display Position and DD.RAM Addresses Left side (Display position) Right side 1 2 100014 2300 24 First line 00H O1H.vncsnneninO9H OAH snusnssnnnn 6H 17H Second line 40H 41H ieee @GH 4AH vcncemnnnnmnS8H 87H Note: The return home instruction resets the cursor to tocation OOH Supply Circuit Examples +5V R-BIAS = Voo 7542 STN ype Vo . R-BIAS = va 3 6kQ af Vss ov Note: When the Vis set to 5 kor TN versions or 4 k@ for STN versions, the LCD drive voltage can be varied over a range of from 3t05V. Block Diagram DM2423 Yoo. ——> Ves ——> com vo ——= {ow | LoD panel CoM 16 Controlleridriver RS ——— Ie1 RW ——> e —- SEG) : 40X2 bBo SEG 40 i D.M . i CLH,CL2 Driver IC 2x2 087 (option) pee eee ee ee eee ee ee eee ee een eee ‘ LED backtight : IC 1: HD44780 or LC7985NA-8733 IC 2: LC7930N x 2 No. 4413-5/9

[Pino Symbot PFancton pos Vas ov (GN) A a Register select pin 0: instruction register (write) Busy flag and address counter (read) 1: Data register (read/write) RW Readiwrite pin 0: Write; MPU > LCD module 4: Read: LCD module + MPU a 0 710 10 DBO 0 OBS Data bus (tristate bidirectional pins) Used as the lower 4 bit pins when an B-bit interlace is used. Unused when a é-bit intertace is used.

111014 DB¢ to DB7 Data bus (Tristate bidirectional pins)

Used as the upper 4 bit pins when an 8-bit interface is used. Used as the 4 data bits when a 4-bit interface is used 87 is also be used as the busy flag. Option pin (LED A: For use as the anode side (+) power supply pin) Option pin (LED K: For use as the cathode side (-) power supply pin.) Note: This module is designed so that it can be used with 4-bit and 8-bit microprocessors. In 4-bit mode data is wansferred in two 4-bit cycles, and in 6-bit mode data is transterred in one 8:bit cycle. Supply conditions when the built-in reset circuit is used. Parameter = unit ce a ca [Swopyrseime ge fo Sonal ofime [oe [os If the above conditions are not met the internal reset circuit may not function correctly. Therefore, instruction reset should be used in such cases. 1 4.5V o.2v Vee 0.2v ov Note: The vaiue tore specifies the minimum troo time the power supply is off when the power is shut off or the power is repeatedly turned on and of 0.1 mss toc $10 ms : torr 21ms No. 4413-7/9

Table 1 Character Code/Character Pattern Correspondence Chart Upper 4 bits| 0000] 0010) 0011 0101 0110/0111 J toro} 1014} 1700] 1105) 1140) 11t Lower 4 bits xox00.00 | Mi BP | eb: | Bo vewwocot "TT TE TREY gia UPDRS cy woow > PEM EDR Ble] PST Bi von |= TS ela FLEE || won) EEE TE CELE TE La | conor © SSE Les ual» [ALE 0 oon) EEF l(a pe poo el PR aa PPLE Sg ooo |e SEMIS A Le a SEE woveroor * ETS ETAT Peles (UPL gy noon) ETE ele ose! 7 =| wo Le] STE ETE LS Te cones Le TELL ie SES € cone f= la ACME lala) E || wore AT a Ee PH] | oon Ee TAo allel Sol Note: The CG RAM is a character generator RAM that stores character patterns that may be freely rewritten by the user. ee No. 4413-89

Table 2 Instruction Functions a Secunia Executon te [as [Rw [087 [08s [bas [ose] 085 [082] 0a [ 020] ° (when fose= 250 ka Display clear Clears the whole display and then returns 82 ps to 1.64 ms the cursor to the home position (location 0). Cursor home Returns the cursor to the home position 40 ps to 1.6 ms Also restores a shifted display. The contents of DD RAM are not changed. Entry mode set Sets the cursor advance position and 40 ps whether the display shifts. These operations are performed when data is read or written, Display onvoft c Sets the display onvoff state (0), the cursor contrat onvolf state (C), and the blinking state (B) of the character at the cursor position. Cursor/dispiay shift Se | RAL Performs cursor motion and display shift 404s without changing the contents of DD RAM. . Function set DL Sets the interface data length (DL), the 4048 number of display lines (N), and the character font (F). CG RAM address ACG Sets the CG RAM address. The next data 40 ps set transmitted will be CG RAM data. 00 RAM address 1 ADD Sets the DD RAM address. The next data set transmitted will be DD RAM ata. Busy flag/address BF AC Reads out the busy flag (BF), which THs readout indicates the internal operation in progress state, and the contents of the address tegister. CG RAMIDD RAM Write data Writes to DD RAM or CG RAM. 40 us data write CG RAM/DD RAM 1 Read data Reads data from DD RAM or CG RAM 40 us data read VO = 1: Increment (+1) DD RAM: Display data RAM The execution times VD =0: Decrement (~1) CG RAM: Character generator RAM will change if the S= 1: Display shift at the same time ACG: ACG RAMaddress internat oscillator SIC = 1: Display shitt ADD: Corresponds to a DD RAM frequency is SIC = 0: Cursor move address. changed. PUL = 1: Right shift AC: The address counter, whichis | Example: If an fogc PUL = 0: Left shift used for both DD and CG RAMs. | of 270 kHz is used, DL = 1: 8 bits, DL = 0:4 bits then a 40 ps time N=4: 2lines, N= 0:1 line from this chart will Fat: 5x10dols,F =0:5% 7 dots become 40 ys x BF = 1: Internal operation in progress 250/270 = 37 ps. BF =0: Instructions accepted Invalid (don't care) TNo products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power contro! systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. WM Anyone purchasing any products described or contained herein for an above-mentioned use shall ® Accept full responsibility and indemnify and defend SANYO ELECTRIC CO, LTD,, its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: @® Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO, LTD. its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. I Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant- eed for volume production, SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties, No. 4413-9/9