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PDF IS22C040 Data sheet ( Hoja de datos )
| Número de pieza | IS22C040 | |
| Descripción | 32 to 40 SEC INSTANT VOICE ROM | |
| Fabricantes | ISSI | |
| Logotipo |  |
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IS22C040
IS22C040
32 to 40 SEC INSTANT VOICE ROM
ISISSSII®®
OCTOBER 1998
FEATURES
GENERAL DESCRIPTION
• Voice length at
IS22C040 is a high-quality voice synthesizer with a capacity
– 8 KHz sampling is 32 seconds
of 32 to 40 seconds. A proprietary ADPCM algorithm is
– 6 KHz sampling is 40 seconds
• Silence compression to save memory
• Eight trigger pins, S1 to S8 for 32 sections
• SBT pin play-all or sequential play-all
used. The audio message is stored in a 1024-Kbit on-chip
EPROM.
The IS22C040 eliminates the need of complicated circuitry
in voice playback (Figure 1) but still achieves high voice
quality. Sounds such as human speech, animal sounds,
• 15 ms debounce time suitable for CDS
• IRP interrupt pin stops playback at once
• STP stop pulse generated at end of playback
musical sounds, and even special sound effects can be
synthesized. Devices can be cascaded to achieve longer
voice duration (Figure 3). Two devices can be configured
in parallel (Figure 4) in order to achieve signal mixing
• BUSY signal for CPU control
• Two LEDs flash at 3 Hz interval
• 3.0V to 6V single power supply operation
• Low standby current (<5 µA at 3V)
without an external mixer allowing speeches to be mixed
with background music synthesis from two different chips.
The instant programming nature of the IS22C040 allows a
very short production turnaround time. There are no NRE
charges that are usually required with conventional voice
• Auto-power down
ROMs. Users now can apply a voice synthesis function as
• Built-in oscillator, D/A converter, EPROM
an additional feature to their products even when production
volume is relatively small. It is also ideal for trial or
• ADPCM data compression
engineering prototyping. As a result, the initial investment
www.DataSheet4U.com• Optional pop noise elimination function
is minimal and the risk in the product development phase
• COUT pin drives speaker with a transistor
is reduced.
• Development tools support
• VOUT1 and VOUT2 drives buzzer directly
The IS22C040 provides a wide voltage operating range
from 3.0V to 6.0V. A pair of PWM output pins, VOUT1 and
VOUT2 provide direct drive to a buzzer (Figure 2). Voice
• Sampling rate determined by external resistor
quality from a buzzer is comparable to speaker output and
• Holdable and unholdable triggering option
power consumption is much lower.
• Industrial temperature available
A current output pin, COUT, enables the device to drive a
speaker with a low cost NPN transistor. No complex
filtering or amplifier circuit is needed. An automatic ramp
up/down function eliminates the undesired noise at the
end of playback.
Up to 32 sections are accessible through S1 to S8. The
SBT trigger pin can be programmed to playback all 32
sections or sequentially from section 1 to 32. An interrupt
pin (IRP) and stop pulse (STP) or BUSY signals provide
handshaking with microprocessors or other IS22C040
devices. All trigger pins give 15 ms debounce time and is
ideal for CDS applications as in Figure 6. Two LED drivers
are available, flashing on and off at approximately 3Hz
intervals (Figure 5). The internal voltage compensation
oscillator requires only one external resistor. Different
sampling frequencies are determined by the external
oscillator resistor value.
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which
may appear in this publication. © Copyright 1998, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc.
VP009-1C
10/01/98
DataSheet4 U .com
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IS22C040
ISSI®
BONDING DIAGRAM
BONDING PARAMETERS
Pin Name
1 S8
2 LED1
6
7
8
9
10
11
12
13
14
Y 15
X
(0,0)
5
4
3
2
1
20
19
18
17
16
Note: Substrate must be connected to GND
Pad size = 100 µm x 100 µm
3 VOUT1
4 VOUT2
5 GND
6 STP
7 LED2
8 COUT
9 OSC
10 S5
11 S6
12 VPP
13 S1
14 S2
15 VCC
16 S3
www.DataSheet417U.coSm4
18 SBT
19 IRP
20 S7
X
3451.9
3451.9
3451.9
3451.9
3368.10
137.18
100.4
100.4
100.4
100.4
100.4
100.4
100.4
100.4
187.05
3372.5
3451.9
3451.9
3451.9
3451.94
Y
1599.7
1861.0
2147.6
2444.5
2803.35
2795.93
2486.3
2245.0
1790.0
1469.5
1230.0
989.6
662.3
422.7
113.78
141.8
581.5
836.0
1090.6
1345.13
DC CHARACTERISTICS
Symbol
VCC
ISB
IOP
VIH
VIL
IOH
IOL
ICO
ISTPH
TSTPL
ILED
∆F/F
Parameter Description
Operating Voltage
Standby Current
Operating Current
Input HIGH Voltage
Input LOW Voltage
VOUT LOW O/P Current
VOUT HIGH O/P Current
COUT O/P Current
STP LOW O/P Current
STP HIGH O/P Current
Output Current LED
Frequency Stability
Integrated Silicon Solution, Inc.
VP009-1C
10/01/98
DataSheet4 U .com
Condition
VCC = 3.0V, I/O Open
Vcc = 3.0V, I/O Open
Vcc = 3.0V
Vcc = 3.0V
Vcc = 3.0V, VOUT = 0V
Vcc = 3.0V, VOUT = 3.0V
Vcc = 3.0V, VCOUT = 0.7V
Vcc = 3.0V, VSTP = 0V
Vcc = 3.0V, VSTP = 3.0V
Vcc = 3.0V – 6.0V
FOSC(3V) – FOSC(3.5V)
FOSC (3V)
Min.
3.0
—
—
2.5
–0.3
—
—
—
—
—
6
—
Typ.
4.5
1
—
3.0
0
–12
12
–2
–5
5
8
—
Max.
6.0
5
100
3.5
0.3
—
—
—
—
—
10
5
Unit
V
µA
µA
V
V
mA
mA
mA
mA
mA
mA
%
5
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IS22C040
ORDERING INFORMATION
Commerical Range: 0°C to +70°C
Order Part No.
IS22C040X
IS22C040P
Package
Unpackaged
20-Pin 300-mil Plastic DIP
Industrial Range: –40°C to +85°C
Order Part No.
IS22C040XI
IS22C040PI
Package
Unpackaged
20-Pin 300-mil Plastic DIP
ISSI®
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Integrated Silicon Solution, Inc.
VP009-1C
10/01/98
DataSheet4 U .com
ISSI ®
Integrated Silicon Solution, Inc.
2231 Lawson Lane
Santa Clara, CA 95054
Fax: (408) 588-0806
Toll Free: 1-800-379-4774
Email: [email protected]
http://www.issi.com
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| PDF Descargar | [ Datasheet IS22C040.PDF ] | |
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