CF1155 series Melody LSIs OVERVIEW The CF1155 series are CMOS melody LSIs that, together with a battery and piezoelectric buzzer, operate in one of 3 melody modes determined by input level or bonding options. They also feature an oscillator stop function in non-play mode and a variable pull-down resistance function that responds to input levels in order to reduce power consumption, reduce cost, and extend battery life, making them ideal in a wide range of applications including greeting cards and toys. FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Requires few external components 1.2 to 3.6V wide operating voltage range Low power consumption 3 melody modes (bonding option) Oscillator stop function in non-play mode Power saving pull-down resistor built-in RC oscillator circuit Power-ON initialization function 2 VSS pad connections Wide pitch dynamic range (G3 to D7) Chip form ORDERING INFORMATION Device Package CF1155××× Chip form SEIKO NPC CORPORATION —1 CF1155 series PAD LAYOUT and COORDINATES (Unit: µm) Number VDD OUT 3 2 4 T2 5 T1 6 HA1155 TC (0,0) (1230,1230) OUT 1 11 7 8 9 VSS TO OSH VSS 10 LH Chip size: 1.23 × 1.23mm Chip thickness: 300 ± 30µm T1, T2, TC, and TO bonding is not required. Pad Pad dimensions (Unit: µm) X Y 1 OUT 930 1075 2 OUT 529 1075 3 VDD 155 1075 4 TC 155 887 5 T2 155 608 6 T1 155 420 7 VSS 223 155 8 TO 486 155 9 OSH 750 155 10 LH 1041 155 11 VSS 1075 420 PAD DESCRIPTION Name Function OSH, LH Melody mode control inputs. Built-in pull-down resistors mean LOW-level signals are obtained when inputs are open circuit. The resistance of the pull-down resistor varies with the applied voltage, as described in the Electrical Characteristics. OUT, OUT Piezoelectric speaker driver outputs. Both pins are LOW in non-play mode. OUT is LOW and OUT is HIGH during output for a musical rest note. Both pins are HIGH during the gap between musical notes. VDD Supply. The rear surface of the chip is VDD level. VSS Ground T1, T2, TC TO Test inputs. Pull-down resistor built-in. Test output. The oscillator frequency (typ. 50kHz) is output for monitoring purposes. SEIKO NPC CORPORATION —2 CF1155 series SPECIFICATIONS Absolute Maximum Ratings Parameter Symbol Rating Unit VDD − VSS −0.3 to 5.0 V Input voltage range VIN VSS − 0.2 to VDD + 0.2 V Operating temperature range Topr −20 to 80 °C Storage temperature range Tstg −65 to 150 °C Supply voltage range Condition Electrical Characteristics Ta = 25°C, VSS = 0V, VDD = 1.5V Rating Parameter Symbol Condition Unit min typ max 1.2 1.5 3.6 V Operating voltage VDD Current consumption1 IDD1 Non-play mode – 0.01 0.3 µA Current consumption2 IDD2 Melody modes: OUT, OUT open – 25 50 µA LH, OSH LOW-level input voltage VIL – – VSS + 0.2 V LH, OSH HIGH-level input voltage VIH VDD – 0.2 – – V LH, OSH LOW-level input current IIL VIL = 0.4V 0.7 1.5 3.0 µA LH, OSH HIGH-level input current IIH VIH = 1.5V 0.7 1.5 3.0 µA OUT, OUT LOW-level output current IOL VOL = 0.75V 2.0 – – mA OUT, OUT HIGH-level output current IOH VOH = 0.75V 2.0 – – mA TO oscillator frequency fOSC 35 50 65 kHz TO frequency stability (relative to voltage) ∆f/f1 VDD = 1.2 to 2.0V – 1 – %/0.1V ∆f/f2 VDD > 2.0V – 2 – %/1V TO oscillator start voltage VDOB – – 1.2 V TO oscillator stop voltage VDOS – – 1.2 V 1. Measurement circuit A VDD 1.5V VSS 2. Measurement circuit A 1.5V VDD LH VSS SEIKO NPC CORPORATION —3 CF1155 series FUNCTIONAL DESCRIPTION Melody Modes The CF1155 series melody mode is determined by the bonding options and levels on the mode control inputs OSH and LH. When either OSH or LH or both go HIGH (VDD), the corresponding melody mode is selected as shown in the following table. OSH LH Melody mode HIGH HIGH Level hold 1 LOW HIGH Level hold 2 HIGH LOW One-shot LOW LOW Non-play Level hold 1 When both OSH and LH go HIGH, melody play starts and continues while both are held HIGH. When both inputs go open circuit or LOW, melody play stops, even if during mid melody. Note that both OSH and LH inputs should be switched simultaneously using a single switch. If there is timing difference between the two inputs, then LH has priority. OSH LH OUT 1 TUNE REPEAT REPEAT Oscillator Pull-down resistance 135kΩ (2-pin parallel resistance) 500kΩ 135kΩ SEIKO NPC CORPORATION —4 CF1155 series Level hold 2 When LH goes HIGH, a single melody play starts. Melody play continues until the single melody ends or LH goes open circuit or LOW, whichever occurs first. LH OUT 1 TUNE Oscillator Pull-down resistance 270kΩ 1MΩ 270kΩ 1MΩ 270kΩ One-shot When OSH goes HIGH, a single melody play starts. Melody play continues until the melody ends, even if OSH goes open circuit or LOW mid melody. However, if the OSH input goes HIGH again during melody play, the melody play restarts from the beginning. OSH From the begining OUT 1 TUNE 1 TUNE Oscillator Pull-down resistance 270kΩ 270kΩ 270kΩ 270kΩ 1MΩ 1MΩ 270kΩ 1MΩ 1MΩ SEIKO NPC CORPORATION —5 CF1155 series Power-save Function As shown in the preceding timing diagrams, the oscillator stops during non-play mode and the pull-down resistance value changes in response to both HIGH-level and LOW-level inputs (power-save pull-down resistor) to reduce power consumption and extend battery life. Non-play oscillator stop function When melody play ends, regardless of the state of either LH or OSH, the internal oscillator stops and is placed in a standby state. In this state, the current consumption, including input pin pull-down resistor current (IIH max), does not exceed 3.3µA. Power-save pull-down resistor The resistance of the OSH and LH input pull-down resistor changes in response to the input voltage. The pulldown resistance is 1MΩ when the input is HIGH, and the pull-down resistance is 270kΩ when the input is LOW. Furthermore, if a light-dependent resistor (CdS) cell is employed as a switch (the pull-down resistance is maximum when the CdS resistance is minimum (light) and the pull-down resistance is minimum when the CdS resistance is maximum (dark)), the combined resistance can be increased, decreasing current consumption. SEIKO NPC CORPORATION —6 CF1155 series TYPICAL APPLICATION The circuits below represent the standard connections for CF1155 series devices. Piezoelectric buzzer VDD OUT VSS OSH OUT LH Piezoelectric buzzer Light VDD VSS OUT VSS OSH Circuit 1 OUT LH VSS Circuit 3 Piezoelectric buzzer VDD OUT VSS OSH OUT LH VSS Circuit 2 Note 1: There are 2 VSS pads, and either pad can be used. Note 2: Circuit 1 is for one-shot mode, circuit 2 for level hold 1/2 modes, and circuit 3 for CdS connection. The bonding options for the above circuits is shown in the following table. OSH LH Yes Yes Level hold 1 Yes Level hold 2 Yes Melody mode One-shot SEIKO NPC CORPORATION —7 CF1155 series SONG LIST For products intended solely for sale within Japan, please contact our company about copyright permission. For products intended for sale outside of Japan, it is the responsibility of the customer to obtain permission to use a melody by following all relevant copyright rules and regulations for the countries concerned. Device CF1155 Song Title Happy Birthday to you Version AAB Jingle Bells CF1155 CF1155 Santa Claus is comin to town Composer Hill Mildred Junius Welch/Hill Patty Smith 15.09 Pierpont James AAC 28.88 Coots J Fred We wish you a merry Christmas – We wish you a merry Christmas – It came upon the midnight clear Time [s] AAD Sears Edwin H/Willis Richard Storrs Joy to the world 51.21 Haendel Georg Friedrich CF1155 Silent Night AAE Gruber Franz Xaver 27.94 CF1155 Yesterday AAF Lennon John Winston/MC Cartney Paul James 66.21 CF1155 My favorite things AAG Rodgers Richard 48.49 CF1155 You are my sunshine AAH Davis Jimmie H/Mitchell Charles 22.07 CF1155 It’s a small world AAJ Sherman Richard M/Sherman Robert B 22.07 CF1155 Jingle Bells AAK Pierpont James 33.62 CF1155 Over the rainbow AAL Arlen Harold 67.0 Jingle Bells Pierpont James CF1155 Mon Beau Sapin AAS CF1155 White Christmas AAT Berlin Irving 55.25 CF1155 For Elisa AAV Beethoven Van Ludwig 28.27 CF1155 Hymn AL AMOUR AAW Monnot Margueritte Angele 36.21 CF1155 Where do I begin love story ABA Lai Francis Albert 43.46 Rudolph the red nosed reindeer Marks John D London Bridge CF1155 Old Macdonald had a farm CF1155 CF1155 32.07 – – ABB – Wedding March ABC Mendelssohn Bartholdy felix J L 13.81 Winnie the pooh ABD Sherman Richard M/Sherman Robert B 41.38 Twinkle Twinkle Little Star 25.04 – Note. The copyrights of music described in this list have been the public domain or being managed by JASRAC in Japan. SEIKO NPC CORPORATION —8 CF1155 series Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such use from SEIKO NPC CORPORATION (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. SEIKO NPC CORPORATION 1-9-9, Hatchobori, Chuo-ku, Tokyo 104-0032, Japan Telephone: +81-3-5541-6501 Facsimile: +81-3-5541-6510 http://www.npc.co.jp/ Email: [email protected] ND13010-E-00 2013.03 SEIKO NPC CORPORATION —9