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Rainbow Electronics AT89LS8252 User Manual

Page 23

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AT89LS8252

4-159

Flash Programming and Verification Characteristics - Parallel Mode

T

A

= 0°C to 70°C, V

CC

= 5.0V

±

10%

Symbol

Parameter

Min

Max

Units

V

PP

Programming Enable Voltage

11.5

12.5

V

I

PP

Programming Enable Current

1.0

mA

1/t

CLCL

Oscillator Frequency

3

12

MHz

t

AVGL

Address Setup to PROG Low

48t

CLCL

t

GHAX

Address Hold After PROG

48t

CLCL

t

DVGL

Data Setup to PROG Low

48t

CLCL

t

GHDX

Data Hold After PROG

48t

CLCL

t

EHSH

P2.7 (ENABLE) High to V

PP

48t

CLCL

t

SHGL

V

PP

Setup to PROG Low

10

µ

s

t

GLGH

PROG Width

1

110

µ

s

t

AVQV

Address to Data Valid

48t

CLCL

t

ELQV

ENABLE Low to Data Valid

48t

CLCL

t

EHQZ

Data Float After ENABLE

0

48t

CLCL

t

GHBL

PROG High to BUSY Low

1.0

µ

s

t

WC

Byte Write Cycle Time

2.0

ms