UPD78P014 datasheet(46/62 Pages) NEC

46 / 62 page

µPD78P014

Program Operation

AC Characteristics (Ta = 25

± 5 °C, VDD = 6.0 ± 0.25 V, VPP = 12.5 ± 0.3 V, VSS = 0 V)

Note Corresponding

µPD27C256A symbol.

MIN.

TYP.

MAX.

Unit

µs

130

1ms

0.95

1.0

1.05

2.85

78.75

µs

Parameter

Address setup time (to CE

↓)

↓ delay time from data

Input data setup time (to CE

↓)

Address hold time (from CE

↑)

Input data hold time

(from CE

↑)

Output data hold time

(from OE

↑)

VPP setup time (to CE

↓)

VDDP setup time (to CE

↓)

Initial program pulse width

Additional program pulse width

Data output time from OE

↓

Symbol

tSAC

tDDOO

tSIDC

tHCA

tHCID

tHOOD

tSVPC

tSVDC

tWL1

tWL2

tDOOD

Note Corresponding

µPD27C256A symbol.

PROM Mode Setting

AC Characteristics (Ta = 25

± 5 °C, VSS = 0 V)

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

PROM mode setup time

tSMA

µs

Read Operation

AC Characteristics (Ta = 25

± 5 °C, VDD = 5.0 ± 0.5 V, VPP = VDD, VSS = 0 V)

Symbol

SymbolNote

tDAOD

tACC

tDCOD

tCE

tDOOD

tOE

tHCOD

tDF

tHAOD

tOH

Parameter

Data output time from address

Data output time from CE

↓

Data output time from OE

↓

Data hold time (from OE

↑)

Data hold time (from address)

MIN.

TYP.

MAX.

Unit

200

060

0ns

SymbolNote

tAS

tOES

tDS

tAH

tDH

tDF

tVPS

tVDS

tPW

tOPW

tOE

Test Conditions

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