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AT49F008 Datasheet(PDF) 6 Page - ATMEL Corporation

Part No. AT49F008
Description  8-Megabit 1M x 8 5-volt Only Flash Memory
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT49F008 Datasheet(HTML) 6 Page - ATMEL Corporation

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AT49F008
6
AC Read Waveforms
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
AT49F008-90
AT49F008-12
AT49F008-15
Units
Min
Max
Min
Max
Min
Max
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
tRO
RESET to Output Delay
800
800
800
ns
ADDRESS
OUTPUT
HIGH Z
OUTPUT
RESET
OE
CE
tACC
tOE
tDF
tOH
tCE
VALID
ADDRESS VALID
tRO
Input Test Waveforms and Measurement level
tR, tF < 5 ns
AC
MEASUREMENT
LEVEL
AC
DRIVING
LEVELS
0.0V
3.0V
1.5V
Output Test Load
OUTPUT
PIN
5.0V
100 pF
1.8K
1.3K
Note:
1. This parameter is characterized and is not 100% tested.
Pin Capacitance
(f = 1 MHz, T = 25 C)
Typ
Max
Units
Conditions
CIN
46
pF
VIN = 0V
COUT
812
pF
VOUT = 0V


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