AT49F040B Ver la hoja de datos (PDF) - Atmel Corporation

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Fabricante

AT49F040B

4-megabit (512K x 8) 5-volt Only Flash Memory

Atmel Corporation 

11. AC Read Characteristics

Symbol

tACC

tCE(1)

tOE(2)

tDF(3)(4)

tOH

Parameter

Address to Output Delay

CE to Output Delay

OE to Output Delay

CE or OE to Output Float

Output Hold from OE, CE or

Address, whichever occurred first

12. AC Read Waveforms (1)(2)(3)(4)

AT49F040B-55

Min

Max

55

55

0

15

0

25

0

Units

ns

ns

ns

ns

ns

ADDRESS

ADDRESS VALID

CE

tCE

OE

tOE

t DF

tACC

tOH

OUTPUT

HIGH Z

OUTPUT

VALID

Notes:

1. CE may be delayed up to tACC - tCE after the address transition without impact on tACC.

2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change

without impact on tACC.

3. tDF is specified from OE or CE whichever occurs first (CL = 5 pF).

4. This parameter is characterized and is not 100% tested.

10 AT49F040B

3606A–FLASH–12/05

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