msm9802 Oki Semiconductor, msm9802 Datasheet - Page 6

• Manufacturer Part Number: msm9802
• Description: Voice Synthesis Ic With Built-in Mask Rom
• Manufacturer: Oki Semiconductor

PIN DESCRIPTIONS
OKI Semiconductor
DIP
14
10
11
12
13
15
4
6
5
8
9
7
SOP
Pin
17
20
18
23
24
22
7
1
2
3
5
8
SSOP
21
25
23
29
30
28
10
8
1
2
3
6
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 upon power-on.
This pin has an internal pull-up resistor.
Outputs “L” level while voice is being played back.
At power-on, this pin is at “H” level.
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 MSM9802/03/05 is used in stand-alone
mode.
Volume setting pin. If this pin is set to GND level, the maximum
current is forced in. If this pin is set to V
current is forced in. A pull-down resistor of approx. 10Ω is
internally connected to this pin during operation.
Voice output pin.
The voice signals are output as current changes. In standby
state, this pin drives a current of 0 mA and becomes GND level.
Ground pin.
Power supply pin. Insert a bypass capacitor of 0.1 µF or more
between V
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 fall of RND. Set to “H” level when the random playback
function is not used. This pin has internal pull-up resistor.
DD
and GND pins.
Description
MSM9802/03/05-xxx
DD
FEDL9802-03-05-05
level, the minimum
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