SN69040
LCD Controller with Voice/Dual Tone Melody
INTRODUCTION
SN69040 is a single chip voice/dual tone melody synthesizer IC with 4*32 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
applications 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 - 5V
Built in a tiny controller
Two 4-bit I/O ports and two optional 4-bit output ports are provided
Built in 40K*10 ROM
256*4 bits RAM for programming usage are provided
32*4 bits RAM for LCD display usage are provided
Maximum 16k program ROM is provided
Readable ROM code data
Built in direct 4*32 LCD driver
LCD 1/3 bias, 1/4 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 SN69040 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
Version.1.01
1
September 26, 2002
SN69040
LCD Controller with Voice/Dual Tone Melody
PIN ASSIGNMENT
Symbol
SEG1-SEG24
SEG25/P53-SE
G28/P50
SEG29/P43-SE
G32/P40
COM1-COM4
GND
P33-P30
P23-P20
BU1,BU2
VO
RST
OSC
TEST
XIN,XOUT
V
DD
I
O
I
I/O
I/O
O
O
I
I
I
O
I/O
O
O
Function Description
segment 1~24 for LCD driver
Optional to be SEG25-SEG28 or P53-P50
SEG25-28: segment25~28 for LCD driver.
P53-P50: Bit3-bit0 for output port 5.
Optional to be SEG29~SEG32 or P43-P40
SEG29~32: segment29~32 for LCD driver.
P43~P40: Bit3-bit0 for output port 4.
Com1-Com4 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.
Version.1.01
2
September 26, 2002
SN69040
LCD Controller with Voice/Dual Tone Melody
ABSOLUTELY MAXIMUM RATING
Items
Supply Voltage
Input Voltage
Operating
Temperature
Storage Temperature
T
STG
-55.0
125.0
o
Symbol
V
DD
-V
V
IN
T
OP
Min
-0.3
V
SS
-0.3
-20.0
Max
6.0
V
DD
+0.3
70.0
Unit.
V
V
o
C
C
ELECTRICAL CHARACTERISTIC
Item
Sym. Min. Typ. Max. Unit
Condition
Operating Voltage V
DD
2.4 3.0 5.1
V
Standby current 1 I
SBY1
-
-
1.0
uA
V
DD
=3V,both system clk and
32768 Hz clk are off
Standby current 2 I
SBY2
-
20
50
uA
V
DD
=3V, system clk is off,
32768 Hz clk is on for LCD
display and timer.
Operating Current I
OPR
-
350 500
uA
V
DD
=3V, no load
Input current
I
IH
-
3.0 10.0
uA
V
DD
=3V,V
IN
=3V
of ,P2,P3
Drive current of
I
OD
-1.5
-2
-
mA
V
DD
=3V,V
O
=2.6V
P2,P3,P4,P5
large Sink current
I
OS1
2.0
3
-
mA
V
DD
=3V,V
O
=0.4V
of P2,P3,P4,P5
Small Sink current I
OS2
-
0.4
-
uA
V
DD
=3V,V
O
=0.4V
of P2,P3,P4,P5
D/A output current I
VO
2.0 3.0 4.0
mA
V
DD
=3V,V
O
=0.7V
Buzzer drive
I
BZD
-15
mA
V
DD
=3V,V
O
=1.5V
current
Buzzer sink current I
BZS
15
mA V
DD
=3V,V
O
=1.5V
Oscillation resistor
R
-
1.0
-
MHz V
DD
=3V
Oscillation Freq.
F
OSC
-
1.0
-
MHz V
DD
=3V
Version.1.01
3
September 26, 2002
SN69040
LCD Controller with Voice/Dual Tone Melody
BONDING PAD
SN69040
Note: The substrate MUST be connected to Vss in PCB layout.
Version.1.01
4
September 26, 2002
SN69040
LCD Controller with Voice/Dual Tone Melody
DISCLAIMER
The information appearing in SONiX web pages (“this publication”) is believed to be
accurate.
However, this publication could contain technical inaccuracies or typographical errors.
The reader should not assume that this publication is error-free or that it will be
suitable for any particular purpose. SONiX makes no warranty, express, statutory
implied or by description in this publication or other documents which are referenced
by or linked to this publication. In no event shall SONiX be liable for any special,
incidental, indirect or consequential damages of any kind, or any damages whatsoever,
including, without limitation, those resulting from loss of use, data or profits, whether or
not advised of the possibility of damage, and on any theory of liability, arising out of or
in connection with the use or performance of this publication or other documents which
are referenced by or linked to this publication.
This publication was developed for products offered in Taiwan. SONiX may not offer
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.
Version.1.01
5
September 26, 2002
stm32/stm8
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
