SM1350ADJM View Datasheet(PDF) - Nippon Precision Circuits
Part Name
Description
Manufacturer
SM1350ADJM Datasheet PDF : 16 Pages
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PIN DESCRIPTION
SM1350ADJM
No. Pin Name I/O State*1
Description
1
VDD
-
-
Supply pin
2
S0
3
4
S1
S2
I
SU
Binary select mode : Phrase select pins.
Serial select mode : S0 and S1 control melody output.
5
S3
6
MODE
I
Melody select mode control. Binary mode when LOW, and serial
SU
mode when HIGH.
Melody output mode control. One-shot when LOW, and level hold
7
LH
I
SU
when HIGH.
8
STOP
I
One-shot melody mode : Melody output stop control.
U
Level hold melody mode : invalid input.
9
STN
I
U Melody start control
10
BUSYN
O
C
Busy output signal. LOW when a melody is output.
11
CT
O
C
OPEN (LOW output)
12
ICN
I
U Initialization clear input
13
VSS
-
-
Ground pin
14
VOL
I
-
Volume adjusts control. Volume adjusted using an external resistor.
15
SPN
O
P
VOL current output
16
SP
O
P
10-bit D/A converter output
It is not necessary to use it usually. It should connect VDD or OPEN.
17 EBUSYIN I
U When this terminal is made LOW, BUSYN compulsorily becomes
LOW. A pop sound might be emitted.
18
ENDN
O
C
Pulse signal when melody output ends
19
T1N
I
20
T2N
I
21
T3N
I
U
Test signal inputs
U
This terminal cannot be used. It should connect VDD or OPEN.
U
22
TO
O
C
Test signal output. 62.5kHz output when not in test mode.
23
XTN
O
-
Oscillator output
24
XT
I
-
Oscillator input
*1. U : pull-up resistor connection
SU : pull-up resistor connection only when melody output starts
(Function for current consumption decrease when driving with battery. Only when the terminal is read, the pull-up
resistor is connected.)
P : p-channel open drain
C : complementary output
SEIKO NPC CORPORATION - 3
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