8-Bit Microcontroller with OTP ROM Specification Sheet

EM78P447N
8-Bit Microcontroller with OTP ROM
Product Specification (V1.1) 03.30.2005
• 45
(This specification is subject to change without further notice)
ERC OSC Frequency vs Temp.(Cext=100pF, Rext=5.1K)
0.98
0.985
0.99
0.995
1
1.005
-40-200 20406080
Temperature(
℃
)
Fosc/Fosc(25
℃
)
Fig. 26 Typical RC OSC Frequency vs. Temperature
（ R and C are ideal component ）
Four conditions exist with the operating current ICC1 to ICC4. these conditions are as
follows：
ICC1：VDD=3V, Fosc=32 kHz, 2clock, WDT disable.
ICC2：VDD=3V, Fosc=32 kHz, 2clock, WDT enable.
ICC3：VDD=5V, Fosc=4 MHz, 2clock, WDT enable.
ICC4：VDD=5V, Fosc=10 MHz, 2clock, WDT enable.
Typical ICC1 and ICC2 vs. Temperature
9
12
15
18
21
-40-200 20406080
Temperature (℃)
Current (uA)
Fig. 27 Typical Operating Current
（ ICC1 and ICC2 ） vs. Temperature
3V
5V
Typ ICC2
Typ ICC1