MB89538APFM View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB89538APFM

F2MC-8L MB89530A Series / 8-bit Original Microcontroller CMOS

Fujitsu 

MB89530A Series

4. AC Characteristics

(1) Reset Timing

Parameter

RST “L” pulse width

Symbol Condition

tZLZH



(VCC = 5.0 V, AVss = Vss = 0 V, TA = −40 °C to +85 °C)

Value

Min

Max

Unit

Remarks

48 tHCYL



ns

Notes: • tHCYL is the main clock oscillator period.

• If the reset pulse applied to the external reset pin (RST) does not meet the specifications, it may

cause malfunctions. Use caution so that the reset pulse less than the specifications will not be fed to the

external reset pin (RST).

tZLZH

RST

0.2 VCC

0.2 VCC

(2) Power-on Reset

Parameter

Power on time

Power shutoff time

Symbol Condition

tR



tOFF



(AVss = Vss = 0 V, TA = −40 °C to +85 °C)

Value

Unit

Remarks

Min

Max

0.5

50

ms

1



ms

For repeated

operation

Note : Be sure that the power supply will come on within the selected oscillator stabilization period. Also, when

varying the supply voltage during operation, it is recommended that the supply voltage be increased gradually.

tR

2.2 V

VCC

0.2 V

0.2 V

tOFF

0.2 V

40

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