SM5K3 Datasheet, PDF (5/28 Pages) Sharp Electrionic Components – 4-Bit Single-Chip Microcomputers(Controllers With 10-Bit A/D Converter)

SM5K3/SM5K4/SM5K5
RECOMMENDED OPERATING CONDITIONS
(SM5K3/5K5)
PARAMETER
SYMBOL
CONDITIONS
Supply voltage
VDD
Instruction cycle
VDD = 2.2 to 5.5 V
TSYS
VDD = 5.0 V ± 10%
Main clock frequency
(OSCIN-OSCOUT)
VDD = 2.2 to 5.5 V
fOSC
VDD = 5.0 V ± 10%
(SM5K4)
PARAMETER
Supply voltage
SYMBOL
VDD
Instruction cycle
TSYS
Main clock frequency ∗
fOSC
(OSCIN-OSCOUT)
∗ _{Degree of fluctuation frequency :} ± 20%
OSCILLATION CIRCUIT
CONDITIONS
VDD = 2.7 to 5.5 V
VDD = 5.0 V ± 10%
VDD = 2.7 to 5.5 V
VDD = 5.0 V ± 10%
• SM5K3/5K5
OSCIN
OSCOUT
Rf
• SM5K4
OSCIN
RATING
2.2 to 5.5
2 to 61
1 to 61
1 M to 32.768 k
2 M to 32.768 k
RATING
2.7 to 5.5
2 to 5
1 to 5
1 M to 400 k
2 M to 400 k
OSCOUT
UNIT
V
µs
Hz
UNIT
V
µs
Hz
RD
C1
Oscillator
C2
Rf
Rf = 33 kΩ
(fosc = 1.67 MHz, TYP.)
∗ Reference only : Circuit configuration varies according to
oscillator used.
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 .
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