AT27C256R-70RU Atmel, AT27C256R-70RU Datasheet - Page 4

• Manufacturer Part Number: AT27C256R-70RU
• Description: IC OTP 256KBIT 70NS 28SOIC
• Manufacturer: Atmel

Specifications of AT27C256R-70RU

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (8.69mm width)
• Density: 256Kb
• Organization: 32Kx8
• Interface Type: Parallel
• Bus Type: Parallel
• In System Programmable: External
• Access Time (max): 70ns
• Package Type: SOIC
• 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: Surface Mount
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS 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
Optional PGM Verify
PGM Inhibit
Product Identification
Operating Temp. (Case)
V
Symbol
I
I
I
I
I
V
V
V
V
LI
LO
PP1
SB
CC
OL
OH
CC
IL
IH
(2)
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
AT27C256R
low (V
(2)
(2)
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 with or before V
(1)
IL
(1)
Active Current
) to select the Manufacturer’s Identification byte and high (V
Read/Standby Current
Standby Current
(2)
(4)
IL
or V
IH
.
CE
V
V
V
V
V
V
V
X
IH
IH
IL
IL
IL
IL
IL
(1)
Ind.
Auto.
Condition
V
V
V
I
I
f = 5 MHz, I
I
I
SB1
SB2
OL
OH
CC
IN
OUT
PP
, except during programming. The supply current would then be the sum of I
= 2.1 mA
= 0V to V
= -400 µA
= V
(CMOS), CE = V
(TTL), CE = 2.0 to V
= 0V to V
CC
OUT
OE
V
V
V
CC
V
V
V
V
X
IH
IH
IH
IL
IL
IL
IL
CC
(1)
= 0 mA, E = V
PP
, and removed simultaneously with or after V
CC
± 0.3V
CC
-40° C - 85° C
+ 0.5V
A0 = V
A1 - A14 = V
5V ± 10%
Ind.
Auto.
Auto.
IL
Ind.
A9 = V
IL
-45
), except A9 which is set to V
IH
X
Ai
Ai
Ai
Ai
Ai
) to select the Device Code byte.
X
X
IH
(1)
(1)
(1)
or V
H
(3)
IL
IL
AT27C256R
Min
-0.6
2.0
2.4
V
V
V
V
V
V
V
V
V
PP
CC
CC
CC
PP
PP
CC
PP
CC
H
V
and A0 which is toggled
-40° C - 125° C
CC
-40° C - 85° C
Max
PP
±10
100
0.8
0.4
±1
±5
±5
10
20
5V ± 10%
1
+ 0.5
..
Identification Code
-70
0014M–EPROM–12/07
Outputs
High Z
High Z
High Z
D
D
D
D
OUT
OUT
OUT
IN
Units
CC
mA
mA
µA
µA
µA
µA
µA
µA
V
V
V
V
and I
PP
.