AT27C2048-55JI_07 View Datasheet(PDF) - Atmel Corporation
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AT27C2048-55JI_07 Datasheet PDF : 14 Pages
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16. AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Symbol Parameter
Test Conditions(1)
Limits
Min
Max
Units
tAS
tOES
tDS
tAH
tDH
tDFP
tVPS
tVCS
tPW
tOE
tPRT
Notes:
Address Setup Time
2
µs
OE Setup Time
Data Setup Time
Address Hold Time
2
Input Rise and Fall Times
(10% to 90%) 20 ns
2
0
Data Hold Time
Input Pulse Levels
2
OE High to Output Float Delay(2)
0.45V to 2.4V
0
µs
µs
µs
µs
130
ns
VPP Setup Time
Input Timing Reference Level
2
µs
VCC Setup Time
0.8V to 2.0V
2
µs
PGM Program Pulse Width(3)
47.5
52.5
µs
Output Timing Reference Level
Data Valid from OE
0.8V to 2.0V
150
ns
VPP Pulse Rise Time During
Programming
50
ns
1. VCC must be applied simultaneously or before VPP and removed simultaneously or after 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 50 µsec ± 5%.
17. Atmel’s 27C2048 Intergrated Product Identification Code
Codes
Manufacturer
Device Type
Pins
A0 O15-O8 O7
O6
O5
O4
O3
O2
O1
O0
0
0
0
0
0
1
1
1
1
0
1
0
1
1
1
1
0
1
1
1
Hex Data
001E
00F7
8 AT27C2048
0632F–EPROM–12/07
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