Atmel AT27BV040
Table 5-6.
DC programming characteristics
T A = 25 ± 5°C, V CC = 6.5 ± 0.25V, V PP = 13.0 ± 0.25V
Limits
Symbol
Parameter
Test conditions
Min
Max
Units
I LI
V IL
V IH
V OL
Input load current
Input low level
Input high level
Output low voltage
V IN = V IL , V IH
I OL = 2.1mA
-0.6
2.0
? 10
0.8
V CC + 0.7
0.4
μA
V
V
V
V OH
I CC2
Output high voltage
V CC supply current (program and verify)
I OH = -400μA
2.4
40
V
mA
I PP2
V ID
V PP supply current
A9 product identification voltage
CE = V IL
11.5
20
12.5
mA
V
Table 5-7.
AC programming characteristics
T A = 25 ± 5°C, V CC = 6.5 ± 0.25V, V PP = 13.0 ± 0.25V
Limits
Test conditions
Symbol
t AS
t OES
t DS
t AH
Parameter
Address setup time
OE setup time
Data setup time
Address hold time
(1)
Input rise and fall times:
(10% to 90%) 20 ns
Min
2
2
2
0
Max
Units
μs
μs
μs
μs
Data valid from OE
t DH
t DFP
t VPS
t VCS
t PW
t OE
Data hold time
OE high to output float delay
V PP setup time
V CC setup time
CE program pulse width (3)
(2)
(2)
Input pulse levels:
0.45V to 2.4V
Input timing reference level:
0.8V to 2.0V
Output timing reference level:
0.8V to 2.0V
2
0
2
2
95
130
105
150
μs
ns
μs
μs
μs
ns
t PRT
V PP pulse rise time during
programming
50
ns
Notes:
1. V CC must be applied simultaneously with or before V PP and removed simultaneously with or after V PP .
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 tim-
ing diagram.
3. Program pulse width tolerance is 100μsec ??? 5%.
Table 5-8.
The Atmel AT27BV040 integrated product identification code (1)
Pins
Hex
Codes
Manufacturer
Device type
A0
0
1
O7
0
0
O6
0
0
O5
0
0
O4
1
0
O3
1
1
O2
1
0
O1
1
1
O0
0
1
data
1E
0B
Note:
1. The Atmel AT27BV040 has the same product identification code as the Atmel AT27C040. Both are programming compatible.
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0346H–EPROM–4/11
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