AT27C020-90PX Atmel, AT27C020-90PX Datasheet - Page 4

• Manufacturer Part Number: AT27C020-90PX
• Manufacturer: Atmel

Specifications of AT27C020-90PX

• Organization: 256Kx8
• Interface Type: Parallel
• In System Programmable: External
• Access Time (max): 90ns
• 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: 25mA
• Pin Count: 32
• Mounting: Through Hole
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

6. Operating Modes
Notes:
7. DC and AC Operating Conditions for Read Operation
8. DC and Operating Characteristics for Read Operation
Notes:
4
Mode/Pin
Read
Output Disable
Standby
Rapid Program
PGM Verify
PGM Inhibit
Product Identification
Operating Temperature (Case)
V
Symbol
I
I
I
I
I
V
V
V
V
LI
LO
PP
SB
CC
OL
OH
CC
IL
IH
(2)
Power Supply
1. X can be V
2. Refer to Programming Characteristics.
3. V
4. Two identifier bytes may be selected. All Ai inputs are held low (V
1. V
2. V
AT27C020
low (V
H
CC
PP
Parameter
Input Load Current
Output Leakage Current
V
V
V
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
= 12.0 ± 0.5V.
(2)
PP
CC
CC
may be connected directly to V
must be applied simultaneously or before V
(1)
IL
(1)
Active Current
) to select the Manufacturer’s Identification byte and high (V
Read/Standby Current
Standby Current
(4)
IL
or V
IH
.
CE
V
V
V
V
V
V
X
IH
IH
IL
IL
IL
IL
Condition
V
V
V
I
I
f = 5 MHz, I
I
I
SB1
SB2
OL
OH
CC
IN
OUT
PP
= 2.1 mA
= 0V to V
= -400 µA
except during programming. The supply current would then be the sum of I
= V
(CMOS), CE = V
(TTL), CE = 2.0 to V
= 0V to V
OE
V
V
V
V
V
X
X
CC
Ind.
Auto.
IH
IH
IL
IL
IL
OUT
CC
PP
CC
= 0 mA, CE = V
, and removed simultaneously or after V
(Com., Ind.)
PGM
X
V
V
(Com., Ind.)
X
X
X
X
(1)
IL
IH
CC
± 0.3V
CC
+ 0.5V
A0 = V
A1 - A17 = V
IL
IL
A9 = V
) except A9, which is set to V
IH
) to select the Device Code byte.
Ai
Ai
Ai
Ai
X
X
X
IH
-40° C - 85° C
or V
H
5V ± 10%
(3)
-55
IL
IL
Min
-0.6
2.0
2.4
V
V
V
V
X
X
X
X
AT27C020
PP
PP
PP
PP
PP
.
H
V
and A0, which is toggled
CC
±1.0
±5.0
Max
±10
100
Identification Code
1.0
0.8
0.4
25
+ 0.5
-40° C - 125° C
-40° C - 85° C
5V ± 10%
Outputs
0570G–EPROM–12/07
High-Z
High-Z
High-Z
D
D
-90
D
OUT
OUT
IN
CC
Units
mA
mA
µA
µA
µA
µA
V
V
V
V
and I
PP
.