MB89490 View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB89490

8-bit Proprietary Microcontroller

Fujitsu 

MB89490 Series

Operating

voltage (V)

3.6

3.5

3.0

2.7

Analog accuracy

assurance range :

Vcc = AVcc = 2.7V~3.6V

1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 12.5

4.0 2.0 1.33 1.0 0.8 0.66 0.57 0.50 0.44 0.4 0.36 0.33 0.32

Main clock

operating Freq. (MHz)

Min execution

time (inst. cycle)

(µs)

Figure 2 Operating Voltage vs. Main Clock Operating Frequency (MB89PV490)

Figure 1 and 2 indicate the operating frequency of the external oscillator at an instruction cycle of 4/FCH.

Since the operating voltage range is dependent on the instruction cycle, see minimum execution time if the operating

speed is switched using a gear.

26

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