upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 437

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Recommended Oscillator
(1) Main clock oscillator (T
Oscillation frequency
Oscillation stabilization time
Input frequency
(a) Connection of ceramic resonator or crystal resonator
Note The TYP value differs depending on the setting of the oscillation stabilization time select register (OSTS).
Caution Ensure that the duty of oscillation waveform is between 45% and 55%.
Remarks 1. Connect the oscillator as close as possible to the X1 and X2 pins.
(b) External clock input
Cautions
Parameter
Parameter
2. Do not route the wiring near broken lines.
3. For the resonator selection and oscillator constant, customers are required to either evaluate the
1. Connect the high-speed CMOS inverter as close as possible to the X1 pin.
2. Sufficiently evaluate the matching between the V850/SA1 and the high-speed CMOS inverter.
oscillation themselves or apply to the resonator manufacturer for evaluation.
A
= –40 to +85°C)
Symbol
Symbol
f
f
XX
XX
CHAPTER 17 ELECTRICAL SPECIFICATIONS
V
V
Upon reset release
Upon STOP mode release
V
V
External clock
DD
DD
DD
DD
User’s Manual U12768EJ4V1UD
= 2.7 to 3.6 V
= 3.0 to 3.6 V
= 2.7 to 3.6 V
= 3.0 to 3.6 V
X1
X1
High-speed CMOS inverter
Conditions
Conditions
Open
X2
X2
MIN.
MIN.
2
2
2
2
2
TYP.
Note
TYP.
19
/f
XX
MAX.
MAX.
17
20
17
20
MHz
MHz
MHz
MHz
Unit
Unit
s
s
437