AT27LV512A-12 데이터 시트보기 (PDF) - Atmel Corporation
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AT27LV512A-12 Datasheet PDF : 12 Pages
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AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V
Limits
Symbol Parameter
Test Conditions(1)
Min
Max
Units
tAS
Address Setup Time
2
µs
tOES
OE/VPP Setup Time
2
µs
tOEH
OE/VPP Hold Time
Input Rise and Fall Times:
2
µs
tDS
Data Setup Time
(10% to 90%) 20 ns
2
µs
tAH
Address Hold Time
Input Pulse Levels:
0
µs
tDH
Data Hold Time
0.45V to 2.4V
2
µs
tDFP
CE High to Output Float Delay(2)
0
Input Timing Reference Level:
tVCS
VCC Setup Time
0.8V to 2.0V
2
130
ns
µs
tPW
CE Program Pulse Width(3)
95
105
µs
tDV
Data Valid from CE(2)
tVR
OE/VPP Recovery Time
Output Timing Reference Level:
0.8V to 2.0V
2
1
µs
µs
tPRT
OE/VPP Pulse Rise Time During
Programming
50
ns
Notes: 1. VCC must be applied simultaneously or before OE/VPP and removed simultaneously or after OE/VPP.
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven—
see timing diagram.
3. Program Pulse width tolerance is 100 µsec ± 5%.
Atmel’s 27LV512A Integrated Product Identification Code(1)
Codes
Pins
Hex
A0
O7
O6
O5
O4
O3
O2
O1
O0
Data
Manufacturer
0
0
0
0
1
1
1
1
0
1E
Device Type
1
0
0
0
0
0
1
0
1
0D
Note: 1. The AT27LV512A has the same Product Identification Code as the AT27C512R. Both are programming compatible.
8
AT27LV512A
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