AT28C64-25SI datasheet(5/11 Pages) ATMEL

Part #	AT28C64-25SI

Description	64K (8K x 8) CMOS E2PROM

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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AT28C64-12

AT28C64-15

AT28C64-20

AT28C64-25

Symbol

Parameter

Min

Max

Min

Max

Min

Max

Min

Max

Units

tACC

Address to Output Delay

120

150

200

250

ns

tCE

(1)

CE to Output Delay

120

150

200

250

ns

tOE

(2)

OE to Output Delay

10

60

10

70

10

80

10

100

ns

tDF

(3, 4)

CE or OE High to Output

Float

045050

055

0

60

ns

tOH

Output Hold from OE, CE

or Address, whichever

occurred first

0

000

ns

AC Read Characteristics

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 < 20 ns

Input Test Waveforms and

Measurement Level

Output Test Load

Typ

Max

Units

Conditions

CIN

46

pF

VIN = 0V

COUT

812

pF

VOUT = 0V

Pin Capacitance (f = 1 MHz, T = 25°C)

(1)

Note:

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

AT28C64/X

2-197

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AT28C64-25SI Datasheet(PDF) 5 Page - ATMEL Corporation

AT28C64-25SI Datasheet(HTML) 5 Page - ATMEL Corporation

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