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AT29C040A Datasheet(PDF) 5 Page - ATMEL Corporation

Part No. AT29C040A
Description  4-Megabit 512K x 8 5-volt Only 256-Byte Sector CMOS Flash Memory
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT29C040A Datasheet(HTML) 5 Page - ATMEL Corporation

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AC Read Characteristics
AT29C040A-10
AT29C040A-12
AT29C040A-15
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Units
tACC
Address to Output Delay
100
120
150
ns
tCE (1)
CE to Output Delay
100
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
025030040
ns
tOH
Output Hold from OE, CE or Address,
whichever occurred first
000
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.
AT29C040A
5


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