MB89143 View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB89143

8-bit Proprietary Microcontroller

Fujitsu 

MB89143A/144A

X0A and X1A Timings and Conditions

PWHL

tCR

tLXCYL

X0A

0.8 VCC

0.2 VCC

0.8 VCC

0.2 VCC

PWLL

tCF

0.2 VCC

Subclock Conditions

When a crystal

or

ceramic resonator is used

When an external clock is used

X0A

X1A

RF

RD

X0A

X1A

Open

C0

C1

Note: The subclock oscillator feedback resistor is connected externally in dual-clock products.

(4) Instruction Cycle

Parameter

Symbol

Value (typical)

Instruction cycle time tinst

4/FCH, 8/FCH, 16/FCH, 32/FCH

2/FCL

Unit

µs

µs

Remarks

(4/FCH) tinst = 0.5 µs when operating at FCH =

8 MHz

tinst = 61.036 µs when operating at FCL =

32.768 kHz

Note: When operating at 8 MHz, the cycle varies with the set execution time.

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