msm98p05 Oki Semiconductor, msm98p05 Datasheet - Page 4

• Manufacturer Part Number: msm98p05
• Description: Voice Synthesis Ic With Built-in 2-mbit Otp Rom
• Manufacturer: Oki Semiconductor

¡ Semiconductor
PIN DESCRIPTIONS
DIP
15
10
11
12
13
14
16
5
7
6
9
8
Pin
SOP
17
20
18
23
24
22
7
1
2
3
5
8
OSC3/TEST
CPU/STD
Symbol
RESET
XT/CR
BUSY
AOUT
OSC1
OSC2
GND
RND
V
V
REF
DD
Type
—
—
O
O
O
O
I
I
I
I
I
I
The IC enters the standby state if this pin is set to "L" level. At this time,
oscillation stops and AOUT drives a current of 0mA and becomes GND level,
then the IC returns to the initial state. Apply a "L" pulse during power-on.
This pin has an internal pull-up resistor.
Outputs "L" level while voice is being played back.
In "H" level when power is turned ON.
XT/RC switching pin. Set to "H" level if ceramic oscillation is used. Set to "L"
level if RC oscillation is used.
Microcontroller interface/stand-alone mode switching pin. Set to "L" level if
the IC is used in stand-alone mode.
Volume setting pin. If this pin is set to GND level, the maximum amplitude is
delivered. If this pin is set to V
This pin is internally connected to a pull-down resistor of approx. 10 kW
during IC operation.
Voice output pin.
The voice signals are output as current changes. A logic "L" is output from
this pin in standby state.
Ground pin.
Power supply pin. Insert a bypass capacitor of 0.1 mF or more between V
and GND pins.
Ceramic oscillator connection pin when ceramic oscillation is selected.
RC connection pin when RC oscillation is selected.
Input from this pin if external clock is used.
Ceramic oscillator connection pin when ceramic oscillation is selected.
RC connection pin when RC oscillation is selected.
Leave this pin open if external clock is used.
Outputs "L" level in standby state.
Leave this pin open when ceramic oscillation is used.
RC connection pin when RC oscillation is selected.
Outputs "H" level in standby state when RC oscillation is selected.
Random playback starts if RND pin is set to "L" level.
Fetches addresses from random address generation circuit in the IC at the
falling edge of RND. Set to "H" level when the random playback function is
not used. This pin has internal pull-up resistor.
DD
Description
level, the minimum amplitude is delivered.
MSM98P05
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DD