AT27C256R-12PI Atmel, AT27C256R-12PI Datasheet - Page 8

• Manufacturer Part Number: AT27C256R-12PI
• Description: IC OTP 256KBIT 120NS 28DIP
• Manufacturer: Atmel

Specifications of AT27C256R-12PI

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 256K (32K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Organization: 32Kx8
• Interface Type: Parallel
• In System Programmable: External
• Access Time (max): 120ns
• 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: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT27C256R12PI

16. AC Programming Characteristics
T
Notes:
17. Atmel’s AT27C256R Integrated Product Identification Code
8
A
Symbol
t
t
t
t
t
t
t
t
t
t
t
Codes
Manufacturer
Device Type
AS
OES
DS
AH
DH
DFP
VPS
VCS
PW
OE
PRT
= 25 ± 5°C, V
1. V
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer
3. Program Pulse width tolerance is 100 µsec ± 5%.
AT27C256R
driven – see timing diagram.
CC
Parameter
Address Setup Time
OE Setup Time
Data Setup Time
Address Hold Time
Data Hold Time
OE High to Output Float Delay
V
V
CE Program Pulse Width
Data Valid from OE
V
PP
CC
PP
must be applied simultaneously or before V
CC
Setup Time
Pulse Rise Time During Programming
Setup Time
= 6.5 ± 0.25V, V
A0
0
1
(2)
PP
(3)
= 13.0 ± 0.25V
O7
0
1
(2)
O6
0
0
Input Rise and Fall Times
Input Pulse Levels
Input Timing Reference Level
Output Timing Reference Level
PP
and removed simultaneously or after V
O5
0
0
Test Conditions
Pins
O4
(10% to 90%) 20 ns
1
0
0.45V to 2.4V
0.8V to 2.0V
0.8V to 2.0V
O3
(1)
1
1
O2
1
1
Min
PP
95
50
2
2
2
0
2
0
2
2
.
O1
Limits
1
0
Max
130
105
150
O0
0
0
0014M–EPROM–12/07
Units
Data
Hex
µs
µs
µs
µs
ns
µs
µs
µs
ns
ns
1E
8C
µs