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SN6A514
LCD Controller with Voice/Dual Tone Melody
„ INTRODUCTION
SN6A514 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 1024k*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 SN6A514 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
1 February 1, 2001

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SN6A514
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
Seg 1- Seg 56 for LCD driver
Optional to be Seg57-60 or P53-P50
Seg57-60: Seg57-Seg60 for LCD driver.
P53-P50: Bit3-bit0 for output port 5.
Optional to be Seg61-64 or P43-P40
SEG61-64: Seg61-Seg64 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).
2 February 1, 2001

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SN6A514
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
-
Max.
5.1
1.0
Standby current 2 ISBY2 - 20 50
Operating
current
IOPR
Input current of IIH
,P2,P3
Drive current IOD
of P2,P3,P4,P5
large Sink current IOS1
of P2,P3,P4,P5
Small Sink
current of
IOS2
P2,P3,P4,P5
D/A output
current
IVO
Buzzer drive
current
IBZD
Buzzer sink
current
IBZS
Oscillation
R
resistor
Oscillation Freq. FOSC
-
-
-1.5
2.0
-
2.0
-
-
350
3.0
-2
3
0.4
3.0
-15
15
1.0
1.0
500
10.0
-
-
-
4.0
-
-
Unit Condition
V
uA VDD=3V,both system
clk and 32768 Hz clk
are off
uA VDD=3V, system clk is
off, 32768 Hz clk is
on for LCD display
and timer.
uA VDD=3V, no load
uA VDD=3V,VIN=3V
mA VDD=3V,VO=2.6V
mA VDD=3V,VO=0.4V
uA VDD=3V,VO=0.4V
mA VDD=3V,VO=0.7V
mA VDD=3V,VO=1.5V
mA VDD=3V,VO=1.5V
MHZ VDD=3V
MHZ VDD=3V
3 February 1, 2001

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„ BONDING PAD
SN6A514
LCD Controller with Voice/Dual Tone Melody
SN6A514
Note: The substrate MUST be connected to Vss in PCB layout.
4 February 1, 2001

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SN6A514
LCD Controller with Voice/Dual Tone Melody
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5 February 1, 2001