OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

AT27LV256A-90TU

P1-P3P4-P6P7-P9P10-P12P13-P15
4
0547G–EPROM–12/07
AT27LV256A
Notes: 1. X can be V
IL
or V
IH
.
2. Read, output disable, and standby modes require, 3.0V ≤ V
CC
≤ 3.6V, or 4.5V ≤ V
CC
≤ 5.5V.
3. Refer to Programming Characteristics. Programming modes require V
CC
= 6.5V.
4. V
H
= 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All Ai inputs are held low (V
IL
), except A9 which is set to V
H
and A0 which is toggled
low (V
IL
) to select the Manufacturer’s Identification byte and high (V
IH
) to select the Device Code byte.
6. Operating Modes
Mode/Pin CE OE Ai V
PP
V
CC
Outputs
Read
(2)
V
IL
V
IL
Ai V
CC
V
CC
D
OUT
Output Disable
(2)
V
IL
V
IH
X
(1)
V
CC
V
CC
High Z
Standby
(2)
V
IH
X
(1)
X
(1)
V
CC
V
CC
High Z
Rapid Program
(3)
V
IL
V
IH
Ai V
PP
V
CC
D
IN
PGM Verify
(3)
X
(1)
V
IL
Ai V
PP
V
CC
D
OUT
Optional PGM Verify
(3)
V
IL
V
IL
Ai V
CC
V
CC
D
OUT
PGM Inhibit
(3)
V
IH
V
IH
X
(1)
V
PP
V
CC
High Z
Product Identification
(3)(5)
V
IL
V
IL
A9 = V
H
(4)
A0 = V
IH
or V
IL
A1 - A14 = V
IL
V
CC
V
CC
Identification Code
7. DC and AC Operating Conditions for Read Operation
AT27LV256A
-55 -90
Industrial Operating Temperature (Case) -40°C - 85°C -40°C - 85°C
V
CC
Power Supply
3.0V to 3.6V 3.0V to 3.6V
5V ± 10% 5V ± 10%
5
0547G–EPROM–12/07
AT27LV256A
Notes: 1. V
CC
must be applied simultaneously with or before V
PP
, and removed simultaneously with or after V
PP
.
2. V
PP
may be connected directly to V
CC
, except during programming. The supply current would then be the sum of I
CC
and I
PP
.
8. DC and Operating Characteristics for Read Operation
Symbol Parameter Condition Min Max Units
V
CC
= 3.0V to 3.6V
I
LI
Input Load Current V
IN
= 0V to V
CC
±1µA
I
LO
Output Leakage Current V
OUT
= 0V to V
CC
±5µA
I
PP1
(2)
V
PP
(1)
Read/Standby Current V
PP
= V
CC
10 µA
I
SB
V
CC
(1)
Standby Current
I
SB1
(CMOS), CE = V
CC ±
0.3V 20 µA
I
SB2
(TTL), CE = 2.0 to V
CC
+ 0.5V 100 µA
I
CC
V
CC
Active Current f = 5 MHz, I
OUT
= 0 mA, CE = V
IL
8mA
V
IL
Input Low Voltage -0.6 0.8 V
V
IH
Input High Voltage 2.0 V
CC
+ 0.5 V
V
OL
Output Low Voltage I
OL
= 2.0 mA 0.4 V
V
OH
Output High Voltage I
OH
= -2.0 mA 2.4 V
V
CC
= 4.5V to 5.5V
I
LI
Input Load Current V
IN
= 0V to V
CC
±1µA
I
LO
Output Leakage Current V
OUT
= 0V to V
CC
±5µA
I
PP1
(2)
V
PP
(1)
Read/Standby Current V
PP
= V
CC
10 µA
I
SB
V
CC
(1)
Standby Current
I
SB1
(CMOS), CE = V
CC
± 0.3V 100 µA
I
SB2
(TTL), CE = 2.0 to V
CC
+ 0.5V 1 mA
I
CC
V
CC
Active Current f = 5 MHz, I
OUT
= 0 mA, CE = V
IL
20 mA
V
IL
Input Low Voltage -0.6 0.8 V
V
IH
Input High Voltage 2.0 V
CC
+ 0.5 V
V
OL
Output Low Voltage I
OL
= 2.1 mA 0.4 V
V
OH
Output High Voltage I
OH
= -400 µA 2.4 V
6
0547G–EPROM–12/07
AT27LV256A
10. AC Waveforms for Read Operation
(1)
Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE
may be delayed up to t
CE
- t
OE
after the falling edge of CE without impact on t
CE
.
3. OE may be delayed up to t
ACC
- t
OE
after the address is valid without impact on t
ACC
.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
9. AC Characteristics for Read Operation
V
CC
= 3.0V to 3.6V and 4.5V to 5.5V
Symbol Parameter Condition
AT27LV256A
Units
-55 -90
Max Min Min Max
t
ACC
(3)
Address to Output Delay CE = OE = V
IL
55 90 ns
t
CE
(2)
CE to Output Delay OE = V
IL
55 90 ns
t
OE
(2)(3)
OE to Output Delay CE = V
IL
35 50 ns
t
DF
(4)(5)
OE or CE High to Output Float,
Whichever Occurred First
30 40 ns
t
OH
Output Hold from Address, CE or OE,
Whichever Occurred First
00ns
P1-P3P4-P6P7-P9P10-P12P13-P15

AT27LV256A-90TU

Mfr. #:
Buy AT27LV256A-90TU
Manufacturer:
Description:
IC EPROM 256K PARALLEL 28TSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet