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Speech Controller. SN68340 Datasheet |
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SN68340
Speech Controller
INTRODUCTION
SN68340 is a 340 seconds single chip voice synthesizer IC which contains I/O
pins and a tiny controller. By programming through the tiny controller, user’s
applications including section combination, trigger modes, output status, and
other logic functions can then be easily implemented.
FEATURES
Single power supply 2.4V - 5.1V
Built in a tiny controller
340 seconds voice capacity are provided
Two 4-bit I/O ports and two 4-bit output ports are provided
256*4 bits RAM are provided
Maximum 16k program ROM is provided
Readable ROM code data
Built in a high quality speech synthesizer
Adaptive playing speed from 2.5k-20kHz is provided
Built in a dual tone melody generator
Speech/Dual tone melody mixer is provided
Fixed current D/A output is provided to drive external connected transistor
for sound output
Low Voltage Reset
1 December 20, 2000
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SN68340
Speech Controller
PIN ASSIGNMENT
Symbol
P20
P21
P22
P23
P30
P31
P32
P33
P40
P41
P42
P43
P50
P51
P52
P53
VDD
OSC
TEST
RESET
GND
VO
I/O Function Description
I/O Bit0 of I/O port 2
I/O Bit1 of I/O port 2
I/O Bit2 of I/O port 2
I/O Bit3 of I/O port 2
I/O Bit0 of I/O port 3
I/O Bit1 of I/O port 3
I/O Bit2 of I/O port 3
I/O Bit3 of I/O port 3
O Bit0 of output port 4
O Bit1 of output port 4
O Bit2 of output port 4
O Bit3 of output port 4
O Bit0 of output port 5
O Bit1 of output port 5
O Bit2 of output port 5
O Bit3 of output port 5
I Positive power supply
I Oscillation component connection pin
I For testing only
I Reset pin
I Negative power supply
O D/A current output
2 December 20, 2000
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SN68340
Speech Controller
ABSOLUTE MAXIMUM RATING
Items
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
TOP
TSTG
Min
-0.3
VSS-0.3
-20.0
-55.0
Max
6.0
VDD+0.3
70.0
125.0
Unit.
V
V
oC
oC
ELECTRICAL CHARACTERISTICS
Item
Operating Voltage
Standby Current
Operating Current
Input Current of P1
Drive Current of P2,P3
Sink Current of P2,P3
D/A Output Current
Oscillation Freq.
Sym. Min. Typ. Max. Unit Condition
VDD 2.4 3.0 5.1 V
ISBY
-
- 2.0 uA VDD=3V, no load
IOPR
-
- 250 uA VDD=3V, no load
Ii - 3 - uA VDD=3V
IOD 1.5 2
- mA VDD=3V,VO=2.4V
IOS 2.0 3
- mA VDD=3V,VO=0.4V
IVO 2.0 3.0 4.0 mA VDD=3V,VO=0.7V
FOSC
-
1.0
- MHz VDD=3V
3 December 20, 2000
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