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AT27C1024 Datasheet, PDF (4/9 Pages) ATMEL Corporation – 1-Megabit 64K x 16 OTP EPROM
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AT27C1024
DC and AC Operating Conditions for Read Operation
Operating
Temperature
(Case)
Com.
Ind.
-45
0°C - 70°C
-40°C - 85°C
-55
0°C - 70°C
-40°C - 85°C
AT27C1024
-70
-90
0°C - 70°C
0°C - 70°C
-40°C - 85°C -40°C - 85°C
-12
0°C - 70°C
-40°C - 85°C
-15
0°C - 70°C
-40°C - 85°C
VCC Power Supply
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
DC and Operating Characteristics for Read Operation
Symbol Parameter
Condition
Min
Max
Units
ILI
Input Load Current
VIN = 0V to VCC
±1
µA
ILO
IPP1(2)
Output Leakage Current
VPP(1)) Read/Standby Current
VOUT = 0V to VCC
VPP = VCC
±5
µA
10
µA
ISB
VCC(1) Standby Current
ISB1 (CMOS), CE = VCC ± 0.3V
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
100
µA
1
mA
ICC
VCC Active Current
f = 5 MHz, IOUT = 0 mA, CE = VIL
30
mA
VIL
Input Low Voltage
-0.6
0.8
V
VIH
Input High Voltage
2.0
VCC + 0.5
V
VOL
Output Low Voltage
IOL = 2.1 mA
0.4
V
VOH
Note:
Output High Voltage
IOH = -400 µA
2.4
V
1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.
2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and
IPP.
AC Characteristics for Read Operation
AT27C1024
-45
-55
-70
-90
-12
-15
Symbol Parameter
Condition Min Max Min Max Min Max Min Max Min Max Min Max Units
tACC(3)
tCE(2)
Address to
Output Delay
CE to Output
Delay
CE = OE
= VIL
OE = VIL
45
55
70
90
120
150 ns
45
55
70
90
120
150 ns
tOE(2)(3)
OE to Output
Delay
CE = VIL
20
25
25
30
35
50 ns
tDF(4)(5)
OE or CE High to Output Float,
whichever occurred first
20
25
25
30
30
40 ns
Output Hold from
tOH
Address, CE or OE,
whichever occurred first
7
7
7
0
0
0
ns
Notes: 2, 3, 4, 5. - see AC Waveforms for Read Operation.
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