UPD75518 NEC, UPD75518 Datasheet - Page 163

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

CHARACTERISTICS OF THE MAIN SYSTEM CLOCK OSCILLATOR (T
CHARACTERISTICS OF THE SUBSYSTEM CLOCK OSCILLATOR (T
CAPACITANCE (T
Input capacitance
Output capacitance
I/O capacitance
Resonator
Crystal
resonator
External
clock
Resonator
Ceramic
resonator
Crystal
resonator
External
clock
Notes 1. The oscillator frequency and input frequency indicate only the oscillator characteristics. See the
Notes 1. The oscillator frequency and input frequency indicate only the oscillator characteristics. See the
Parameter
2. The oscillation settling time means the time required for the oscillation to settle after V
2. The oscillation settling time means the time required for the oscillation to settle after V
item of AC characteristics for the instruction execution time.
applied or after the STOP mode is released.
item of AC characteristics for the instruction execution time.
applied or after the STOP mode is released.
C3
C1
C1
Recommended
constant
Recommended
constant
XT1
XT1
X1
X1
X1
a
= 25 C, V
PD74HCU04
Open
Symbol
X2
XT2
XT2
X2
X2
C
C
C
R
I
O
IO
C4
C2
C2
DD
= 0 V)
Oscillator
frequency
(f
Oscillator
frequency
(f
Oscillation
settling time
Note 2
XT1 input
frequency
(f
XT1 input
high/low
level width
(t
Oscillation
settling time
Note 2
Oscillator
frequency
(f
Oscillation
settling time
Note 2
X1 input
frequency
(f
X1 input
high/low
level width
(t
Parameter
X
X
X
XH
XT
XT
XTH
Parameter
Min.
)
)
)
)
, t
)
Note 1
Note 1
Note 1
, t
Note 1
Note 1
XL
XTL
)
)
Typ.
Min.
Min.
32
32
1.0
1.0
1.0
81
5
Max.
15
15
15
32.768
Typ.
Typ.
4.19
1.0
Unit
pF
pF
pF
a
= -40 to +85 C, V
Max.
a
Max.
100
500
6.2
6.2
6.2
35
10
15
10
30
= -40 to +85 C, V
2
4
f = 1 MHz
0 V for pins other than pins to be
measured
MHz
MHz
MHz
Unit
Unit
kHz
kHz
ms
ms
ms
ns
s
s
s
Conditions
DD
V
V
voltage range
After V
Min. of the oscilla-
tion voltage range
V
DD
= 2.7 to 6.0 V)
DD
DD
DD
PD75518(A)
= 4.5 to 6.0 V
= oscillation
= 4.5 to 6.0 V
= 2.7 to 6.0 V)
Conditions
Conditions
DD
reaches
DD
DD
163
is
is