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MSM9844 Datasheet(PDF) 5 Page - OKI electronic componets

Part No. MSM9844
Description  VOICE SYNTHESIS LSI with on-chip FIFO Memory
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Maker  OKI [OKI electronic componets]
Homepage  http://www.oki.com
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MSM9844 Datasheet(HTML) 5 Page - OKI electronic componets

 
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Page5
¡ Semiconductor
MSM9844
When DMA Transfer selected, the signal to start writing external memory
data to the MSM9844 is entered to this pin.
When DMA Transfer is not use, keep the pin "H".
16-bit serial data output pin when the external DAC is in use.
Synchronizing clock signal for 16-bit serial data input/output when the
external DAC is in use.
Pins wired to the oscillator, When the external clock is used, input the
clock signal to the XT pin and keep the /XT pin open.
Input/Output the sampling frequency in use. The signal is used as the
synchronizing signal when the external DAC is in use.
"L" level input to this pin turns the LSI to the initial status.
Pins for testing the LSI. Keep these pins "L".
The left channel output from the built-in LPF. Analog waveform output can
be directly connected to an amplifirer to drive a speaker.
The right channel output from the built-in LPF. Analog waveform output can
be directly connected to an amplifirer to drive a speaker.
Digital power supply pin. Insert a 0.1µF or larger bypass capacitor
between this pin and the DGND pin.
Digital GND pin.
Analog power supply pin. Insert a 0.1µF or larger bypass capacitor
between this pin and the AGND pin.
Analog GND pin.
Pin No.
Symbol
I / O
Description
I
O
I / O
I
O
I / O
I
I
O
O
IOW
SIOCK
DASD
XT
XT
VCK
RESET
TEST0,1
TEST2,3
AOUTL
AOUTR
DVDD
AVDD
AGND
DGND
52
43
44
54
55
46
33
47,48
45,26
28
29
31
30
22
21,49


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