AM28F020-70JI Datasheet

  • AM28F020-70JI

  • 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash M...

  • 278.62KB

  • AMD

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SWITCHING TEST WAVEFORMS
2.4 V
2.0 V
Test Points
0.8 V
0.45 V
Input
Output
0.8 V
0V
Input
Output
2.0 V
1.5 V
Test Points
1.5 V
3V
AC Testing (all speed options except -70): Inputs are driven at
2.4 V for a logic 鈥?鈥?and 0.45 V for a logic 鈥?鈥? Input pulse rise
and fall times are
鈮?/div>
10 ns.
AC Testing for -70 devices: Inputs are driven at 3.0 V for a
logic 鈥?鈥?and 0 V for a logic 鈥?鈥? Input pulse rise and fall times
are
鈮?/div>
10 ns.
14727F-15
SWITCHING CHARACTERISTICS over operating range unless otherwise specified
AC Characteristics鈥擱ead-Only Operations
Parameter
Symbols
JEDEC
t
AVAV
t
ELQV
t
AVQV
t
GLQV
t
ELQX
t
EHQZ
t
GLQX
t
GHQZ
t
AXQX
t
WHGL
t
VCS
Standard Parameter Description
t
RC
t
CE
t
ACC
t
OE
t
LZ
t
DF
t
OLZ
t
DF
t
OH
Read Cycle Time (Note 2)
Chip Enable AccessTime
Address Access Time
Output Enable Access Time
Chip Enable to Output in Low Z (Note 2)
Chip Disable to Output in High Z (Note 1)
Output Enable to Output in Low Z (Note 2)
Output Disable to Output in High Z (Note 2)
Output Hold from first of Address, CE#, or
OE# Change (Note 2)
Write Recovery Time before Read
V
CC
Setup Time to Valid Read (Note 2)
Min
Max
Max
Max
Min
Max
Min
Max
Min
Min
Min
-70
70
70
70
35
0
20
0
20
0
6
50
Am28F020 Speed Options
-90
90
90
90
35
0
20
0
20
0
6
50
-120
120
120
120
50
0
30
0
30
0
6
50
-150
150
150
150
55
0
35
0
35
0
6
50
-200
200
200
200
55
0
35
0
35
0
6
50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
碌s
碌s
Notes:
1. Guaranteed by design; not tested.
2. Not 100% tested.
26
Am28F020

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