upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 291

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

X1 Oscillator Characteristics (T
Notes 1.
Caution When using the X1 oscillator, wire as follows in the area enclosed by the broken lines in the above
Remark For the resonator selection and oscillator constant, users are required to either evaluate the oscillation
Ceramic
resonator
Crystal
resonator
External
clock
Resonator Recommended Circuit
2.
figures to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the 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.
themselves or apply to the resonator manufacturer for evaluation.
Use this product in a voltage range of 2.26 to 5.5 V because the detection voltage (V
clear (POC) circuit is 2.26 V (MAX.).
Indicates only oscillator characteristics. Refer to AC Characteristics for instruction execution time.
V
V
SS
SS
C1
C1
CHAPTER 19 ELECTRICAL SPECIFICATIONS (TARGET VALUES) ((T2) product)
X1
X1
X1
C2
C2
X2
X2
A
Oscillation
frequency (f
Oscillation
frequency (f
X1 input
frequency (f
X1 input high-
/low-level width
(t
= −40 to +125°C, V
XH
, t
Parameter
XL
)
X
X
X
)
)
)
User’s Manual U16994EJ3V0UD
Note 2
Note 2
Note 2
2.7 V ≤ V
2.0 V ≤ V
2.7 V ≤ V
2.0 V ≤ V
DD
= 2.0 to 5.5 V
DD
DD
DD
DD
≤ 5.5 V
< 2.7 V
≤ 5.5 V
< 2.7 V
Conditions
Note 1
, V
SS
= 0 V)
(T2) product T
0.057
MIN.
0.09
1
1
1
1
POC
TYP.
A
SS
) of the power-on-
=
.
−
40 to
MAX.
8.0
8.0
8.0
5.0
0.5
0.5
+
125
MHz
MHz
MHz
Unit
µ
°C
291
s