UPD78F4218AGF-3BA Renesas Electronics America, UPD78F4218AGF-3BA Datasheet - Page 27

• Manufacturer Part Number: UPD78F4218AGF-3BA
• Manufacturer: Renesas Electronics America

Specifications of UPD78F4218AGF-3BA

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Main System Clock Oscillator Characteristics (T
Ceramic
resonator
or crystal
resonator
External
clock
Resonator
Cautions 1. When using the main system clock oscillator, wire as follows in the area enclosed by the
2. When the main system clock is stopped and the system is operated by the subsystem clock,
Recommended Circuit
µ
PD74HCU04
broken lines in the above figures to avoid an adverse effect from wiring capacitance.
• • • • Keep the wiring length as short as possible.
• • • • Do not cross the wiring with other signal lines.
• • • • Do not route the wiring near a signal line through which a high fluctuating current flows.
• • • • Always make the ground point of the oscillator capacitor the same potential as V
• • • • Do not ground the capacitor to a ground pattern through which a high current flows.
• • • • Do not fetch signals from the oscillator.
the subsystem clock should be switched back to the main system clock after the oscillation
stabilization time is secured by the program.
X2
X2
X1 V
X1
SS
Oscillation
frequency
(f
X1 input
frequency
(f
X1 input high-/low-level
width (t
X1 input rising/falling
time (t
Parameter
X
X
)
)
µ µ µ µ PD78F4216A, 78F4218A, 78F4216AY, 78F4218AY
XR
WXH
, t
XF
, t
Data Sheet U14125EJ3V0DS
)
WXL
ENMP = 0
ENMP = 1
ENMP = 0
ENMP = 1
)
A
= − − − − 40 to +85° ° ° ° C)
Conditions
4.5 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
1.9 V ≤ V
4.5 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
1.9 V ≤ V
4.5 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
1.9 V ≤ V
4.5 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
1.9 V ≤ V
4.5 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
1.9 V ≤ V
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
≤ 5.5 V
< 4.5 V
< 2.7 V
< 2.0 V
≤ 5.5 V
< 4.5 V
< 2.7 V
< 2.0 V
≤ 5.5 V
< 4.5 V
< 2.7 V
< 2.0 V
≤ 5.5 V
< 4.5 V
< 2.7 V
< 2.0 V
≤ 5.5 V
< 4.5 V
< 2.7 V
< 2.0 V
MIN.
15
4
4
4
4
2
2
2
2
4
4
4
4
2
2
2
2
0
0
0
0
TYP.
3.125
MAX.
3.125
12.5
6.25
12.5
6.25
12.5
6.25
12.5
6.25
250
25
25
10
20
30
4
2
4
2
5
SS
.
MHz
MHz
MHz
MHz
Unit
ns
ns
27