SM1350 series

NIPPON PRECISION CIRCUITS—5

DC Characteristics

1.Supply voltage ratings shown are with oscillator running and all functions operating normally.

2.Clock frequency and duty cycle are ratings for the clock input on pin XT.

3.Output current when 20 k

Ω volume control resistor is connected to VOL, and all D/A converter bits ON, measured using the circuit of the next page.

P arameter

Symbol

Condition

Rating

Unit

min

typ

m a x

–

–

2.4

V

5.5

–

–

V

Standby current consumption

No melody output

–

–

1.0

µA

Operating current consumption

BUSYN, CT, TO, SP, SPN,

MSB, MSBN all open

–

–

3.5

mA

XT external capacitance

–30–

pF

XTN external capacitance

–30–

pF

3.8

4.0

4.2

MHz

40

50

60

%

S0 to S3, MODE, LH, STOP, STN, ICN

HIGH-level input voltage

–

V

S0 to S3, MODE, LH, STOP, STN, ICN

LOW-level input voltage

V

S0 to S3, MODE, LH, STOP, STN, ICN

HIGH-level input current

–10

20

µA

S0 to S3, MODE, LH, STOP, STN, ICN

LOW-level input current

–10

20

µA

BUSYN, CT, TO HIGH-level output

current

2.0

–

–

mA

BUSYN, CT,TO LOW-level output current

2.0

–

–

mA

MSB, MSBN HIGH-level output current

3.0

–

–

mA

MSB, MSBN LOW-level output current

3.0

–

–

mA

–

–

4.0

mA

P arameter

Symbol

Condition

Rating

Unit

min

typ

m a x

–

–

2.4

V

5.5

–

–

V

Standby current consumption

No melody output

–

–

1.0

µA

Operating current consumption

BUSYN, CT, TO, SP, SPN,

MSB, MSBN all open

–

–

9.5

mA

XT external capacitance

–30–

pF

XTN external capacitance

–30–

pF

3.8

4.0

4.2

MHz

40

50

60

%

S0 to S3, MODE, LH, STOP, STN, ICN

HIGH-level input voltage

–

V

S0 to S3, MODE, LH, STOP, STN, ICN

LOW-level input voltage

V

S0 to S3, MODE, LH, STOP, STN, ICN

HIGH-level input current

–30

50

µA