UPD78P083GB-3BS-MTX-A Datasheet, PDF (30/58 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78P083
Capacitance (TA = 25°C, VDD = VSS = 0 V)
Parameter
Input capacitance
I/O capacitance
Symbol
CIN
CIO
Test Conditions
f = 1 MHz, Unmeasured pins returned to 0 V.
f = 1 MHz,
P01-P03, P10-P17, P30-P37,
Unmeasured pins
P50-P57, P70-P72, P100,
returned to 0 V.
P101
MIN.
TYP.
MAX. Unit
15
pF
15
pF
Remark Unless otherwise specified, dual-function pin characteristics are the same as port pin characteristics.
Main System Clock Oscillator Characteristics (TA = –40 to +85°C, VDD = 1.8 to 5.5 V)
Resonator
Ceramic
resonator
Recommended
Circuit
VPP X2 X1
C2 C1
Crystal
resonator
VPP X2 X1
C2 C1
External clock
X2
X1
µ PD74HCU04
Parameter
Test Conditions
Oscillation frequency
(fX) ^{Note 1}
Oscillation stabilization
time ^{Note 2}
Oscillation frequency
(fX) ^{Note 1}
Oscillation stabilization
time ^{Note 2}
X1 input frequency
(fX) ^{Note 1}
X1 input high- and
low-level widths (tXH, tXL)
VDD = Oscillation voltage
range
After VDD came to MIN.
of oscillation voltage range
VDD = 4.5 to 5.5 V
MIN. TYP.
1.0
1.0
1.0
85
MAX.
5.0
4
5.0
10
30
5.0
500
Unit
MHz
ms
MHz
ms
MHz
ns
Notes 1. Only the oscillator characteristics are shown. For the instruction execution time, refer to AC Characteristics.
2. Time required for oscillation to stabilize after a reset or the STOP mode has been released.
Caution When using the oscillation circuit of the main system clock, wire the portion enclosed in broken lines
in the figures as follows to avoid adverse influences on the wiring capacitance:
• Keep the wiring length as short as possible.
• Do not cross the wiring over other signal lines.
• Do not route the wiring in the vicinity of lines through which a high fluctuating current flows.
• Always keep the ground point of the capacitor of the oscillation circuit at the same potential as VSS.
• Do not connect the power source pattern through which a high current flows.
• Do not extract signals from the oscillation circuit.
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