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SN6A512
LCD Controller with Voice/Dual Tone Melody
INTRODUCTION
SN6A512 is a series of single chip voice/dual tone melody synthesizer IC with 16*64/8*64 LCD direct drive capability which contains two 4-bit I/O ports, two optional 4-bit output ports and a tiny controller. By programming through the tiny controller, user's application including LCD display, section combination, trigger modes, output status, voice/melody playing and other logic functions and then be easily implemented.
FEATURES
Single power supply 2.4V - 5.1V Built in a tiny controller Two 4-bit I/O ports, two optional 4-bit output ports are provided 256*4 bits RAM for programming usage are provided 256*4 bits RAM for LCD display usage are provided Maximum 512k*10 program ROM is provided Readable ROM code data Built in direct 16*64/8*64 LCD driver LCD 1/4 bias, 1/5 bias; 1/8 duty, 1/16 duty Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-40kHz is provided Built in a dual tone melody generator Speech/Dual tone melody mixer is provided which SN6A512 series can play speech and dual tone melody simultaneously Fixed current D/A output is provided to drive external connected transistor for sound output PWM output is provided to drive external connected piezo buzzer
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February 1, 2001
SN6A512
LCD Controller with Voice/Dual Tone Melody
PIN ASSIGNMENT
Symbol SEG1 ~ SEG56 SEG57/P53 ~ SEG60/P50 I/O O O Function Description Segment1~ 56 for LCD driver Optional to be Segment57 ~ 60 or P53-P50 Seg57-60: segment57 ~ 60 for LCD driver. P53-P50: bit3-bit0 for output port 5. SEG61/P43 ~ SEG64/P40 O Optional to be segment61 ~ 64 or P43-P40 SEG61-64: segment61 ~ 64 for LCD driver. P43-P40: Bit3-bit0 for output port 4. COM1-COM16 GND P33-P30 P23-P20 BU1,BU2 VO RST OSC TEST XIN,XOUT VDD VLCDR VLC1-VLC4 WSUB I I O I I/O I/O O O I I I Com1-Com16 for LCD driver. Negative power supply. Bit 3 to bit 0 of IO port 3. Bit 3 to bit 0 of IO port 2. Buzzer driver outputs. D/A current output. Reset pin with internal pull low. Oscillation component connection pin. For testing only. 32768 Hz Crystal connection pins. Positive power supply. LCD voltage adjusting pin. LCD voltage bias connection pins. Well substrate of chip. Connected to the
highest voltage of chip (VDD or VLCDR).
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February 1, 2001
SN6A512
LCD Controller with Voice/Dual Tone Melody
ABSOLUTELY MAXIMUM RATING
Items Supply Voltage Input Voltage Operating Temperature Storage Temperature TSTG -55.0 125.0
o
Symbol VDD-V VIN TOP
Min -0.3 VSS-0.3 -20.0
Max 6.0 VDD+0.3 70.0
Unit. V V
o
C
C
ELECTRICAL CHARACTERISTIC
Item Sym. Min. Operating VDD 2.4 Voltage Standby current 1 ISBY1 Standby current 2 ISBY2 Typ. 3.0 20 Max. 5.1 1.0 50 Unit Condition V uA uA VDD=3V,both system clk and 32768 Hz clk are off VDD=3V, system clk is off, 32768 Hz clk is on for LCD display and timer. VDD=3V, no load VDD=3V,VIN=3V VDD=3V,VO=2.6V VDD=3V,VO=0.4V VDD=3V,VO=0.4V VDD=3V,VO=0.7V VDD=3V,VO=1.5V VDD=3V,VO=1.5V
Operating current Input current of ,P2,P3 Drive current of P2,P3,P4,P5 large Sink current of P2,P3,P4,P5 Small Sink current of P2,P3,P4,P5 D/A output current Buzzer drive current Buzzer sink current Oscillation resistor Oscillation Freq.
IOPR IIH IOD IOS1 IOS2 IVO IBZD IBZS R FOSC
-1.5 2.0 2.0
350 3.0 -2 3 0.4 3.0 -15 15
500 10.0 4.0
uA uA mA mA uA mA mA mA
-
1.0 1.0
-
MHZ VDD=3V MHZ VDD=3V
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February 1, 2001
SN6A512
LCD Controller with Voice/Dual Tone Melody
BONDING PAD
SN6A512
Note: The substrate MUST be connected to Vss in PCB layout.
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February 1, 2001
SN6A512
LCD Controller with Voice/Dual Tone Melody
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February 1, 2001

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