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AT49F2048 Datasheet(PDF) 6 Page - ATMEL Corporation

Part No. AT49F2048
Description  2-Megabit 128K x 16 5-volt Only CMOS Flash Memory
Download  11 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT49F2048 Datasheet(HTML) 6 Page - ATMEL Corporation

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AT49F2048
6
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
COUT
812
pF
VOUT = 0V
Output Test Load
Input Test Waveforms and Measurement Level
tR, tF < 5 ns
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 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 Characteristics
Symbol
Parameter
AT49F2048-70
AT49F2048-90
AT49F2048-12
Units
Min
Max
Min
Max
Min
Max
tACC
Address to Output Delay
70
90
120
ns
tCE
(1)
CE to Output Delay
70
90
120
ns
tOE
(2)
OE to Output Delay
35
0
40
0
50
ns
tDF
(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
000
ns
ADDRESS
OUTPUT
HIGH Z
OUTPUT
OE
CE
tACC
tOE
tDF
tOH
tCE
VALID
ADDRESS VALID


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