356
15.2
H8/3827R Series Electrical Characteristics
15.2.1
Power Supply Voltage and Operating Range
The power supply voltage and operating range are indicated by the shaded region in the figures.
1. Power supply voltage and oscillator frequency range
38.4
1.8
3.0
5.5
V
CC
(V)
f
W
(kHz)
• All operating modes
32.768
4.5
16.0
4.0
10.0
2.0
1.8
2.7
4.5
5.5
V
CC
(V)
V
CC
(V)
fosc (MHz)
fosc (MHz)
• Active (high-speed) mode
• Sleep (high-speed) mode
• Internal power supply step-down circuit not used
4.0
10.0
2.0
1.8
2.7
5.5
• Active (high-speed) mode
• Sleep (high-speed) mode
• Internal power supply step-down circuit used
Note: fosc is the oscillator frequency. When external
clocks are used, fosc=1MHz is the minimum.
Note: fosc is the oscillator frequency. When external
clocks are used, fosc=1MHz is the minimum.