AT27C256R70PC Atmel, AT27C256R70PC Datasheet - Page 4

• Manufacturer Part Number: AT27C256R70PC
• Manufacturer: Atmel

Specifications of AT27C256R70PC

• Density: 256Kb
• Organization: 32Kx8
• Interface Type: Parallel
• Bus Type: Parallel
• In System Programmable: External
• Access Time (max): 70ns
• Package Type: PDIP
• Reprogramming Technique: OTP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 20mA
• Pin Count: 28
• Mounting: Through Hole
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

DC and AC Operating Conditions for Read Operation
DC and Operating Characteristics for Read Operation
Notes:
.
AC Characteristics for Read Operation
Note:
4
Symbol
I
I
I
I
I
V
V
V
V
Symbol
t
t
t
t
t
Operating
Temp. (Case)
V
LI
LO
PP1
SB
CC
ACC
CE
OE
DF
OH
IL
IH
OL
OH
CC
(2)
(4)(5)
(2)(3)
(2)
(3)
Supply
1. V
2. V
2, 3, 4, 5. - see AC Waveforms for Read Operation.
CC
PP
Parameter
Input Load Current
Output Leakage Current
V
V
V
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
OE or CE High to Output
Float, whichever occurred first
Output Hold from Address, CE or OE,
whichever occurred first
PP
CC
CC
may be connected directly to V
must be applied simultaneously with or before V
(1)
(1)
Active Current
Read/Standby Current
Standby Current
Com.
Ind.
Auto.
AT27C256R
-40 C - 85 C
0 C - 70 C
5V
-45
10%
Condition
OE = V
CE = V
CE = OE = V
Condition
V
V
V
I
I
f = 5 MHz, I
I
I
IL
IL
SB1
SB2
OL
OH
OUT
IN
PP
CC
= 2.1 mA
= -400 µA
= 0V to V
-40 C - 85 C
, except during programming. The supply current would then be the sum of I
= V
(CMOS), CE = V
(TTL), CE = 2.0 to V
0 C - 70 C
= 0V to V
5V
IL
CC
-55
Min
10%
OUT
7
CC
-45
CC
= 0 mA, E = V
Max
45
45
20
20
PP
CC
, and removed simultaneously with or after V
-40 C - 125 C
-40 C - 85 C
Min
0 C - 70 C
CC
5V
0.3V
7
+ 0.5V
-55
-70
IL
10%
Max
55
55
25
20
Com., Ind.
Auto.
Com., Ind.
Auto.
AT27C256R
Min
7
-70
-40 C - 125 C
-40 C - 85 C
AT27C256R
Max
0 C - 70 C
5V
70
70
30
25
-90
10%
Min
0
-90
Min
-0.6
2.0
2.4
Max
90
90
30
25
-40 C - 125 C
-40 C - 85 C
Min
0 C - 70 C
5V
0
-12
-12
V
10%
Max
CC
PP
Max
120
120
35
30
100
0.8
0.4
10
20
..
10
1
+ 0.5
1
5
5
Min
0
-15
-40 C - 125 C
-40 C - 85 C
0 C - 70 C
Max
5V
150
150
40
35
CC
-15
Units
mA
mA
µA
µA
µA
µA
µA
µA
10%
V
V
V
V
and I
Units
ns
ns
ns
ns
ns
PP
.