Rainbow-electronics AT89LS8252 Bedienungsanleitung PDF herunterladen (Seite 23)

AT89LS8252

4-159

Flash Programming and Verification Characteristics - Parallel Mode

= 0°C to 70°C, V

= 5.0V ± 10%

Symbol Parameter Min Max Units

Programming Enable Voltage 11.5 12.5 V

Programming Enable Current 1.0 mA

1/t

CLCL

Oscillator Frequency 3 12 MHz

AVGL

Address Setup to PROG Low 48t

CLCL

GHAX

Address Hold After PROG 48t

CLCL

DVGL

Data Setup to PROG Low 48t

CLCL

GHDX

Data Hold After PROG 48t

CLCL

EHSH

P2.7 (ENABLE) High to V

48t

CLCL

SHGL

Setup to PROG Low 10 µs

GLGH

PROG Width 1 110 µs

AVQV

Address to Data Valid 48t

CLCL

ELQV

ENABLE Low to Data Valid 48t

CLCL

EHQZ

Data Float After ENABLE 0 48t

CLCL

GHBL

PROG High to BUSY Low 1.0 µs

Byte Write Cycle Time 2.0 ms

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Features 1
Description 1
AT89LS8252 10

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