SM1350 View Datasheet(PDF) - Nippon Precision Circuits
Part Name
Description
MFG CO.
'SM1350' PDF : 21 Pages View PDF
Level hold melody output (LH = HIGH)
STN
SM1350 series
S0 to S3
#N
Melody
Output
#N
#N
Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics
Figure 7. Level hold mode (binary select) with “Select change retrigger [No]” mask option
If the “Select change retrigger [Yes]” mask option is leading note when any of the S0 to S3 inputs changes
selected, a new melody starts playing from the state.
STN
S0 to S3
#N
#M
Melody
Output
#N
#M
Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics
Figure 8. Level hold mode (binary select) with “Select change retrigger [Yes]” mask option
Serial select mode (MODE = HIGH)
In serial select mode, the next melody is selected by
cycling through the melodies in the order #N →
#N+1 … #N−1 → #N when the STN input goes
LOW. The number of melodies in the cycle is set by
master-slice option. Note that when melody output is
stopped using the STOP input, the melody-select
counter increments.
One-shot melody output (LH = LOW)
STN
Melody
Output
#N
#N+1
#N+2
Note: Refer to the "TIMING DIAGRAMS" section to confirm melody timing specifics
Figure 9. One-shot mode (serial select)
NIPPON PRECISION CIRCUITS—11
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