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SN6A512B
LCD Controller with Voice/Dual Tone Melody
INTRODUCTION
SN6A512B 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-40kHzwww.DataSheet4U.com is provided
Built in a dual tone melody generator
Speech/Dual tone melody mixer is provided which SN6A512B 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
Ver 1.1
1 February 15, 2006

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SN6A512B
LCD Controller with Voice/Dual Tone Melody
PIN ASSIGNMENT
Symbol
I/O
SEG1 ~ SEG56 O
SEG57/P53 ~
SEG60/P50
O
SEG61/P43 ~
SEG64/P40
O
COM1-COM16
GND
P33-P30
P23-P20
BU1,BU2
VO
RST
OSC
TEST
XIN,XOUT
VDD
VLCDR
VLC1-VLC4
WSUB
O
I
I/O
I/O
O
O
I
I
I
I
I
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.
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 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).
Ver 1.1
2 February 15, 2006

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SN6A512B
LCD Controller with Voice/Dual Tone Melody
ABSOLUTELY MAXIMUM RATING
Items
Symbol Min
Supply Voltage
Input Voltage
Operating
Temperature
VDD-V
VIN
TOP
-0.3
VSS-0.3
-20.0
Storage Temperature TSTG
-55.0
Max
6.0
VDD+0.3
70.0
125.0
Unit.
V
V
oC
oC
ELECTRICAL CHARACTERISTIC
Item
Sym. Min.
Operating
Voltage
VDD 2.4
Standby current 1 ISBY1 -
Typ.
3.0
2.5
Max.
5.1
3.5
Operating
current
IOPR
Input current
of ,P2,P3
IIH
Drive current IOD
of P2,P3,P4,P5
large Sink current IOS1
of P2,P3,P4,P5
Input Pull Low R
Resistor
D/A output current IVO
Buzzer drive IBZD
current
Buzzer sink
current
IBZS
Oscillation
R
resistor
Oscillation Freq. FOSC
-
-
2
3
-
-
-
-
450
3.0 10.0
--
--
1-
3.0 -
15
15
330 -
1.0 -
Unit Condition
V
uA VDD=3V,both system
clk and 32768 Hz clk
are off
uA VDD=3V, no load
uA VDD=3V,VIN=3V
mA VDD=3V,VO=2.6V
mA VDD=3V,VO=0.4V
MΩ VDD=3V
mA VDD=3V,VO=0.7V
mA VDD=3V,VO=1.5V
mA VDD=3V,VO=1.5V
KΩ VDD=3V
MHZ VDD=3V
Ver 1.1
3 February 15, 2006

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BONDING PAD
SN6A512B
LCD Controller with Voice/Dual Tone Melody
SN6A512B
Note: The substrate MUST be connected to Vss in PCB layout.
Ver 1.1
4 February 15, 2006

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SN6A512B
LCD Controller with Voice/Dual Tone Melody
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The reader should not assume that this publication is error-free or that it will be
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the products discussed in this document in other countries. Information is subject to
change without notice. Please contact SONiX or its local representative for
information on offerings available. Integrated circuits sold by SONiX are covered by
the warranty and patent indemnification provisions stipulated in the terms of sale only.
The application circuits illustrated in this document are for reference purposes only.
SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right
to halt production or alter the specifications and prices, and discontinue marketing the
Products listed at any time without notice. Accordingly, the reader is cautioned to
verify that the data sheets and other information in this publication are current before
placing orders.
Products described herein are intended for use in normal commercial applications.
Applications involving unusual environmental or reliability requirements, e.g. military
equipment or medical life support equipment, are specifically not recommended
without additional processing by SONIX for such application.
Ver 1.1
5 February 15, 2006