FM25V20 Ver la hoja de datos (PDF) - Ramtron International Corporation

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FM25V20

2Mb Serial 3V F-RAM Memory

Ramtron International Corporation 

S

C

tHS

HOLD

Q

Power Cycle Timing

VDD

S

VDD min.

tVR

tPU

tHS

tHH

FM25V20 – 2Mb SPI F-RAM

tHH

tHZ

tLZ

tVF

tPD

Power Cycle & Sleep Timing (TA = -40 C to + 85 C, VDD = 2.0V to 3.6V, unless otherwise specified)

Symbol Parameter

Min Max Units Notes

tVR

VDD Rise Time

tVF

VDD Fall Time

tPU

Power Up (VDD min) to First Access (/S low)

tPD

Last Access (/S high) to Power Down (VDD min)

tREC

Recovery Time from Sleep Mode

50

-

s/V

1

100

-

s/V

1

1

-

ms

0

-

s

2

-

450

s

Notes

1. Slope measured at any point on VDD waveform.

2. Guaranteed by design.

Rev. 3.0

August 2012

Page 13 of 17

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