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HT38A5 Dataheets PDF



Part Number HT38A5
Manufacturers Holtek Semiconductor
Logo Holtek Semiconductor
Description 12 Melody Music Generator
Datasheet HT38A5 DatasheetHT38A5 Datasheet (PDF)

www.DataSheet4U.com HT38A5 12 Melody Music Generator Features · Operating voltage: 2.4V~5.0V · Operating frequency: 8MHz · Two operating mode MCU control mode key control · Rang detect · Hook · Mono output · High D/A converter resolution: 16 bits · Polyphonic up to 8 notes · 16-pin DIP, 20-pin SOP package mode · Low voltage detect · Volume control · Hold key General Description The HT38A5 is a CMOS VLSI designed for musical instruments, especially 12 melody songs. The HT38A5 is built-in with .

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www.DataSheet4U.com HT38A5 12 Melody Music Generator Features · Operating voltage: 2.4V~5.0V · Operating frequency: 8MHz · Two operating mode MCU control mode key control · Rang detect · Hook · Mono output · High D/A converter resolution: 16 bits · Polyphonic up to 8 notes · 16-pin DIP, 20-pin SOP package mode · Low voltage detect · Volume control · Hold key General Description The HT38A5 is a CMOS VLSI designed for musical instruments, especially 12 melody songs. The HT38A5 is built-in with a controller and an WTS (Wave Table Synthesizer). The HT38A5 has applications in areas such as phone ringtones, high function toys, musical boxes, doorbells etc. Block Diagram 3 2 K ´ 1 6 - b it R O M 8 - B it M C U 2 0 8 ´ 8 R A M M u ltip lie r /P h a s e G e n e ra l 1 6 - B it D A C P A 0 ~ P A 7 O S C 1 O S C 2 R E S V D V S V D V S S D D A S A A U D Pin Assignment P A 4 1 2 3 4 5 6 7 8 9 1 0 P A 5 P A 4 1 2 3 4 5 6 7 8 P A 5 P A 6 P A 7 V S S V D D V D D A T E S T 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 P A 3 P A 2 P A 1 P A 0 O S C 2 O S C 1 R E S A U D P A 6 P A 7 V S S V S S A V D D N C V D D A T E S T 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 P A 3 P A 2 P A 1 P A 0 N C O S C 2 O S C 1 N C R E S A U D H T 3 8 A 5 1 6 D IP -A H T 3 8 A 5 2 0 S O P -A Rev. 1.00 1 November 2, 2006 www.DataSheet4U.com HT38A5 Pad Assignment P A 5 P A 6 1 2 1 7 P A 4 1 6 P A 3 1 5 P A 2 1 4 1 3 1 2 P A 1 P A 0 P A 7 (0 , 0 ) 1 1 O S C 2 V S S 3 4 V S S A V D D V D D A 5 6 7 8 1 0 9 O S C 1 R E S T E S T A U D Chip size: 2110 ´ 2530 (mm)2 * The IC substrate should be connected to VSS in the PCB layout artwork. Pad Coordinates Pad No. 1 2 3 4 5 6 7 8 9 X -903.425 -903.425 -882.900 -882.900 -831.950 -831.950 -177.390 -65.590 900.650 Y 1096.250 985.650 -650.050 -776.910 -886.910 -1025.350 -1045.600 -1045.600 -1107.950 Pad No. 10 11 12 13 14 15 16 17 X 900.650 900.650 901.625 901.625 697.050 586.450 -588.250 -698.850 Y Unit: mm -994.626 -316.774 1006.000 1116.600 1114.025 1114.025 1114.025 1114.025 Rev. 1.00 2 November 2, 2006 www.DataSheet4U.com HT38A5 Pad Description Pad Name PA0~PA7 VSSA VSS VDD VDDA TEST AUD RES OSC1 OSC2 I/O I/O ¾ ¾ ¾ ¾ ¾ O I I O Internal Connection Pull-High or None ¾ ¾ ¾ ¾ ¾ ¾ ¾ Mode select and control pia. Negative power supply of DAC, ground Negative power supply, ground Positive power supply DAC power supply No connection (open) Audio output for driving a external transistor or for driving HT82V733 Reset input, active low OSC1 and OSC2 are connected to an RC network or a crystal (by mask option) for the internal system clock. In the case of RC operation, OSC2 is the output terminal for 1/8 system clock. The system clock may come from the crystal, the two pins cannot be floating. Function ¾ Absolute Maximum Ratings Supply Voltage ......................... VSS-0.3V to VSS+5.5V Input Voltage ............................ VSS-0.3V to VDD+0.3V Storage Temperature .......................... -50°C to 125°C Operating Temperature ......................... -25°C to 70°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C. Characteristics Symbol VDD IDD ISTB IOL IOH RPH VIH1 VIL1 VIH2 VIL2 Parameter Operating Voltage Operating Current Standby Current (WDT Disabled) I/O Ports Sink Current I/O Ports Source Current Pull-High Resistance of I/O Ports Input High Voltage for I/O Ports Input Low Voltage for I/O Ports Input High Voltage (RES) Input Low Voltage (RES) Test Conditions VDD ¾ 5V 5V 5V 5V 5V 5V 5V 5V 5V Conditions ¾ No load fOSC=8MHz No load System HALT VOL=0.5V VOH=4.5V VIL=0V ¾ ¾ ¾ ¾ Min. 2.4 ¾ ¾ 9.7 -5.2 11 3.5 0 ¾ ¾ Typ. 3 8 1 16.2 -8.7 22 ¾ ¾ 4 2.5 Max. 5 16 ¾ ¾ ¾ 44 5 1.5 ¾ ¾ Ta=25°C Unit V mA mA mA mA kW V V V V Rev. 1.00 3 November 2, 2006 www.DataSheet4U.com HT38A5 A.C. Characteristics Symbol MCU interface fOSC fSYS tWDT tRES System Frequency System Clock Watchdog Time-Out Period (RC) External Reset Low Pulse Width 5V 5V ¾ ¾ 8MHz crystal ¾ Without WDT prescaler ¾ ¾ 4 9 1 8 ¾ 17 ¾ ¾ 8 35 ¾ MHz MHz ms ms Parameter Test Conditions VDD Conditions Min. Typ. Max. Ta=25°C Unit Function Description Mode selection Low voltage detect Key Control Mode This key chooses and plays one of the 12 stored musical melodies. When the key is pressed the next melody in the list will be selected and played. When the HOLD key is pressed the telephone hold function will be activated and when an incoming ring signal is detected the music will be played. Controls the music volume in 8 discrete steps. Each time the key is pressed the volume will reduce one step at a time until the lowest volume is reached. When the lowest volume is reached, the next key press will return the volume to its maximum level. If this ke.


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