AT49F040-12TC datasheet(5/10 Pages) ATMEL

Part #	AT49F040-12TC

Description	4 Megabit 512K x 8 5-volt Only CMOS Flash Memory

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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AC Read Characteristics

AT49F040-90

AT49F040-12

AT49F040-15

Symbol

Parameter

Min

Max

Min

Max

Min

Max

Units

tACC

Address to Output Delay

90

120

150

ns

tCE (1)

CE to Output Delay

90

120

150

ns

tOE (2)

OE to Output Delay

0

40

0

50

0

70

ns

tDF (3, 4)

CE or OE to Output Float

0

25

0

30

0

40

ns

tOH

Output Hold from OE, CE or

Address, whichever occurred

first

00

0

ns

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.

AC Read Waveforms

(1, 2, 3, 4)

tR, tF < 5 ns

Input Test Waveforms and Measurement Level

Output Test Load

Pin Capacitance

(f = 1 MHz, T = 25°C)

(1)

Typ

Max

Units

Conditions

CIN

46

pF

VIN = 0V

COUT

812

pF

VOUT = 0V

Note:

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

AT49F040

4-213

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AT49F040-12TC Datasheet(PDF) 5 Page - ATMEL Corporation

AT49F040-12TC Datasheet(HTML) 5 Page - ATMEL Corporation

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