M1105 NPC | Alldatasheet
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UPR < M1105/6/7/8 NIPPON PRECISION CRCUTS IN. Melody IC ——_... 00 Melody tc . ™@ OVERVIEW The M1105 series is Melody C-MOS LSI for playing musical tune by connecting only Battery and Piezo Buzzer as external components. 3 kinds of remarkable playing modes can be select- able by bonding option with extremely low current consumption after playing by the oscillation stop function and by the shifting function of pull-down resistance value depending on input level. The M1105 series is suitable for low cost and long life of battery module such as Melody Greeting Cards, Toys, and etc. ™ FEATURES * No external parts + The Shifting function of pull-down resistance + Wide range operation voltage (1.2 ~ 3.6V) value + Low power consumption * CR oscillation on chip * 3 kinds of playing modes selectable by * Power on Initialize function bonding option * 2 positions of Vss pads on chip * The oscillation stop function after playing * Wide compass (G3-D7) ™@ STANDARD CIRCUITS 3 types of circuits are available as standard circuits, *1 — The M1105 series has 2 (a) Few exer (2) Pemhuan (3) Pe Bazar positions of Vss pads. 0 i tO, Please select one pad according Foor DBR on BR oor to your PCB design. i. eee nee *2— (1) for ONE-SHOT, LEVEL. a. HOLD | and LEVEL wow} L — ¢ row HOLD 2 application, TJ ay ous a | (2) for LEVEL HOLD 1 and LEVEL HOLD 2 applica- tion, (3) for Cds application. 2 pads of OSH and LH should be selected by the playing mode. ™@ ELECTRICAL CHARACTERISTICS BONDING PAD PLAYING MODE Ter25°C, Vss#0V, Voo™1.5V ‘OSH $$ peratin tot ae ag ve | fia fis [ae] v Pie [eo TAR Jones fn “O] | onesior Current, JOSH, LH-OPEN ™@ ABSOLUTE MAXIMUM RATINGS [tw __[rsew Jun, [or [rs [30 | , a ST renee [in [ruvfosu{or [rs [2a] " Supply voltage | Voo—Vss|-031070 —|_v_ tor_frcamfour[20[ [| Input voltage | Vaw Vss-0210 Vop +02| V Cure Curt Speen O0T feof -_|™ =20;0 480 € OF [ee | __(as | [ee em [Strasetemp. [Tere _[-sswvns | “| ie pine | voce TT ayy m PINOUT 2+ ee =| av oa 2 veo [D Do ™@ COORDINATES are [oa {Unit um) * No connection to pads 4, nol ra] x Ty [wolrao[ x |v Sands ‘four as [vo [7 | vs [ora | 9 2[our] aot [re | 6 [we | ei0 | 50 [ Chip size 1.80 1.79 mm ] 3 {veo | 150 | 1640 | 9 [OSH] 1076 | 150 onepo gol | “mpthicknes 400236 um ne 0" oe foun [ve | ory te Toon tne s[wo | 176 | 190 [11] ves | 1650] 150 NIPPON PRECISION CIRCUITS 521
m@ PLAYING MODE The 1105 series has two input pads, OSH and LH, to select the playing mode and starts the play. 3 kinds of playing modes, LEVEL HOLD 1, LEVEL HOLD 2 and ONE-SHOT can be selectable by connecting VDD to OSH and/or LH accordingly. © LEVEL HOLD 1 ose The melody starts and plays repeatedly while both OSH and A es LH are connected to VDD. In this mode, the play stops our __f Le halfway by Teleasin 2 LH from ¢LIUNE_, | REPEAT _, |REPEAT VDD during the play. Ce es ae * OSH and LH must be connected vaca sooxn 135K to VDD at the same time by the Palco gg pg same switch. {Total resistance value of OSH and LH) © LEVEL HOLD 2 The melody starts and plays once a rs Sen i a during LH is connected to VDD. or POT In this mode, the play stops half- Ne way by releasing LH from VDD Cs rs ee or rr even if during the play. Puttdown 270K ima 270K IMD 270KQ resiatance OTS © ONE-SHOT The melody starts and plays once om PL LLL completely when the OSH connected to VDD, regardless of our stone LI [true] J J gre a the input trigger pulse length. osctlation ee en 2 eee In case trigger pulse is input on bari OSH again during the play, the Pottdown 270K A 27OKN wn peowe | we melody restarts from the first ost phrase and plays. POWER SAVE FUNCTION The M1105 series has the Oscillation stop function after the play and the Shifting function of resistance value depending on input level ("H" level or "L" level) as shown above Time Chart. These 2 functions save idle power consumption and realize long-life of battery. Teturn to the stand-by condition regardless of input level of OSH and LH. In this mode, the current consumption is less than 3.3 LA (Max.). © The Shifting function of below (depending on input level, "H" or "L" level); In case of Cds switch, the value of pull-down resis- tance is shifted about 1 MQ/I pin when the value of Cds resistance is decreased. On the contrary, the value of pull-down resistance is about 270 KQ/1 pin when the value of Cds resistance is increased. These functions make total resistance value large and save current flow on LSI and Cds.