AT27C256R-70RU Atmel, AT27C256R-70RU Datasheet - Page 7

• 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

14. Programming Waveforms
Notes:
15. DC Programming Characteristics
T
0014M–EPROM–12/07
Symbol
I
V
V
V
V
I
I
V
A
LI
CC2
PP2
IL
IH
OL
OH
ID
= 25 ± 5°C, V
1. The Input Timing Reference is 0.8V for V
2. t
3. When programming the AT27C256R a 0.1 µF capacitor is required across V
transients.
OE
Parameter
Input Load Current
Input Low Level
Input High Level
Output Low Volt
Output High Volt
V
V
A9 Product Identification Voltage
and t
CC
PP
CC
Current
Supply Current (Program and Verify)
DFP
= 6.5 ± 0.25V, V
are characteristics of the device but must be accommodated by the programmer.
PP
= 13.0 ± 0.25V
(1)
IL
and 2.0V for V
Test Conditions
V
I
I
CE = V
OL
OH
IN
= 2.1 mA
= -400 µA
= V
IL
IL
IH
,V
.
IH
PP
and ground to suppress spurious voltage
11.5
Min
-0.6
2.0
2.4
Limits
V
AT27C256R
Max
CC
12.5
±10
0.8
0.4
25
25
+ 1
Units
mA
mA
µA
V
V
V
V
V
7