sm1350 Nippon Precision Circuits Inc, (NPC), sm1350 Datasheet - Page 7

• Manufacturer Part Number: sm1350
• Description: High Tone Quality Melody Lsi
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

AC Characteristics
V
1.Oscillator start-up time = [time from when STN goes LOW to when TO goes HIGH] − 25.0 µs.
2.The time taken for fast damping to reduce the envelope to 0 level.
Initialization clear time
STN pulsewidth
Oscillator start-up time
Oscillator stop time
D/A converter rise delay time
D/A converter fall delay time
STN, STOP standby chattering time
STN, STOP oscillator chattering time
S0 to S3 melody select chattering time
MODE, LH read timing
S0 to S3 read timing
BUSYN fall delay time
BUSYN rise delay time
Melody start delay time
STOP pulsewidth
ENDN delay time
ENDN pulsewidth
DD
= 3 or 5V, T
Parameter
a
1
2
= 25°C, V
SS
= 0V
Symbol
t
t
t
STPW1
t
t
t
t
t
t
t
t
t
DAST
DAEN
t
t
t
BYST
BYEN
PYST
EDST
STW
t
EDW
XEN
CH1
CH2
CH3
t
ICW
XST
MR
SR
Pre-input option selected
Oscillator running
Pre-input option selected
A-class output option
A-class output option
SM1350 series
Condition
180.2
180.2
81.9
65.5
65.5
81.9
min
1.0
−
−
−
−
−
−
−
−
−
−
NIPPON PRECISION CIRCUITS INC.—7
Rating
81.9
81.9
15.9
31.9
16.4
16.0
typ
8.2
−
−
−
−
−
−
−
−
−
−
196.7
196.7
131.1
max
82.0
500
8.2
8.2
−
−
−
−
−
−
−
−
−
−
µsec
msec
µsec
msec
msec
msec
msec
msec
msec
µsec
µsec
msec
msec
msec
msec
msec
µsec
Unit