DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers

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POWER-CYCLE TIMING CHARACTERISTICS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Crystal Startup Time (Note 18)

8

ms

Power-On Reset Delay (Note 19)

65,536

Note 18: Startup time for a crystal varies with load capacitance and manufacturer. The time shown is for an 11.0592MHz crystal manufactured

by Fox Electronics.

Note 19: Reset delay is a synchronous counter of crystal oscillations after crystal startup. Counting begins when the level on the XTAL1 pin

FLASH MEMORY PROGRAMMING CHARACTERISTICS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Data Retention

100

years

Write/Erase Endurance

10,000

cycles

Program/Time

40

ms

Erase Time

4

ms