SM5K3 datasheet(5/28 Pages) SHARP

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SM5K3/SM5K4/SM5K5

RECOMMENDED OPERATING CONDITIONS

(SM5K3/5K5)

PARAMETER

SYMBOL

CONDITIONS

RATING

UNIT

Supply voltage

VDD

2.2 to 5.5

Instruction cycle

TSYS

VDD = 2.2 to 5.5 V

2 to 61

µs

VDD = 5.0 V ± 10%

1 to 61

Main clock frequency

(OSCIN-OSCOUT)

fOSC

VDD = 2.2 to 5.5 V

1 M to 32.768 k

VDD = 5.0 V ± 10%

2 M to 32.768 k

(SM5K4)

NOTES :

• The typical oscillation frequency shall be determined in

consideration of operating condition and fluctuation

frequency.

• Mount Rf, RD, C1, C2, Oscillator (SM5K3/5K5)/Rf (SM5K4)

as close as possible to the oscillator pins of the LSI, in

order to reduce an influence from floating capacitance.

• Since the value of resistor Rf, RD, C1, C2, Oscillator

(SM5K3/5K5)/Rf (SM5K4) varies depending on circuit

pattern and others, the final Rf, RD, C1, C2, Oscillator

(SM5K3/5K5)/Rf (SM5K4) value shall be determined on the

actual unit.

• Don't connect any line to OSCIN and OSCOUT except

oscillator circuit.

• Don't put any signal line across the oscillator circuit line.

• On the multilayer circuit, do not let the oscillator circuit

wiring cross other circuit.

• Minimize the wiring capacitance of GND and VDD .

OSCILLATION CIRCUIT

PARAMETER

SYMBOL

CONDITIONS

RATING

UNIT

Supply voltage

VDD

2.7 to 5.5

Instruction cycle

TSYS

VDD = 2.7 to 5.5 V

2 to 5

µs

VDD = 5.0 V ± 10%

1 to 5

Main clock frequency

∗

(OSCIN-OSCOUT)

fOSC

VDD = 2.7 to 5.5 V

1 M to 400 k

VDD = 5.0 V ± 10%

2 M to 400 k

∗ Degree of fluctuation frequency : ± 20%

OSCOUT

OSCIN

Rf = 33 k

Ω

(fosc = 1.67 MHz, TYP.)

• SM5K3/5K5

∗ Reference only : Circuit configuration varies according to

oscillator used.

• SM5K4

OSCOUT

OSCIN

Oscillator

SM5K3 数据表(PDF) 5 Page - Sharp Corporation

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