AT49F008AT-90TC datasheet(9/17 Pages) ATMEL

Part #	AT49F008AT-90TC

Description	8-megabit (1M x 8/512K x 16) Flash Memory

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Manufacturer	ATMEL [ATMEL Corporation]

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AT49F008A(T)/8192A(T)

9

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

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 t

CE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change

without impact on t

ACC.

3.

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

4.

This parameter is characterized and is not 100% tested.

AC Read Characteristics

Symbol

Parameter

AT49F008A(T)/8192A(T)-70

AT49F008A(T)/8192A(T)-90

AT49F008A(T)/8192A(T)-120

Units

Min

Max

Min

Max

Min

Max

t

ACC

Address to

Output Delay

70

90

120

ns

t

CE

(1)

CE to Output Delay

70

90

120

ns

tOE

(2)

OE to Output Delay

0

30

0

40

0

50

ns

t

DF

(3)(4)

CE or OE to Output Float

0

25

0

25

0

30

ns

tOH

Output Hold from OE,

CE or Address,

whichever occurred first

00

0

ns

t

RO

RESET to Output Delay

800

ns

OE

RESET

CE

t

CE

t

OE

t

RO

t

ACC

t

DF

t

OH

ADDRESS

HIGH Z

OUTPUT

ADDRESS VALID

VALID

Input Test Waveforms and Measurement Level

t

R, tF < 5 ns

3.0V

0.0V

Output Test Load

5.0V

Note:

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

Pin Capacitance

f = 1 MHz, T = 25

°C(1)

Typ

Max

Units

Conditions

CIN

46

pF

VIN = 0V

C

OUT

812

pF

V

OUT = 0V

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