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AT27BV1024 Datasheet(PDF) 5 Page - ATMEL Corporation

Part No. AT27BV1024
Description  1 Megabit 64K x 16 Unregulated Battery-Voltage High Speed OTP CMOS EPROM
Download  9 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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AT27BV1024 Datasheet(HTML) 5 Page - ATMEL Corporation

   
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AC Characteristics for Read Operation (VCC = 2.7V to 3.6V and 4.5V to 5.5V)
AT27BV1024
-90
-12
-15
Symbol
Parameter
Condition
Min
Max
Min
Max
Min
Max
Units
tACC (3)
Address to
Output Delay
CE = OE
= VIL
90
120
150
ns
tCE (2)
CE to Output Delay
OE = VIL
90
120
150
ns
tOE (2, 3)
OE to Output Delay
CE = VIL
30
35
50
ns
tDF (4, 5)
OE or CE High to Output Float,
whichever occurred first
30
30
40
ns
tOH
Output Hold from Address, CE or OE,
whichever occurred first
0
0
0
ns
Notes: 2, 3, 4, 5. - see AC Waveforms for Read Operation.
= Preliminary Information
AC Waveforms for Read Operation
(1)
Notes: 1. Timing measurement references are 0.8V and 2.0V.
Input AC drive levels are 0.45V and 2.4V, unless oth-
erwise specified.
2. OE may be delayed up to tCE - tOE after the falling
edge of CE without impact on tCE.
3. OE may be delayed up to tACC - tOE after the address
is valid without impact on tACC.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer
driven.
6. When reading a 27BV1024, a 0.1
µF capacitor is required
across VCC and ground to supress spurious voltage tran-
sients.
AT27BV1024
3-37


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