AT27C256R-15PU Atmel, AT27C256R-15PU Datasheet - Page 7

• Manufacturer Part Number: AT27C256R-15PU
• Manufacturer: Atmel

Specifications of AT27C256R-15PU

• Organization: 32Kx8
• Interface Type: Parallel
• In System Programmable: External
• Access Time (max): 150ns
• 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: Compliant

AC Programming Characteristics
T
Notes:
Atmel’s 27C256R Integrated Product Identification Code
Symbol
t
t
t
t
t
t
t
t
t
t
t
A
Codes
Manufacturer
Device Type
AS
OES
DS
AH
DH
DFP
VPS
VCS
PW
OE
PRT
= 25
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 driven—
3. Program Pulse width tolerance is 100
5°C, V
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
During Programming
PP
CC
PP
must be applied simultaneously or before V
CC
Setup Time
Pulse Rise Time
Setup Time
= 6.5
0.25V, V
A0
(2)
0
1
(2)
PP
(3)
= 13.0
O7
0
1
0.25V
sec
Input Rise and Fall Times
Input Pulse Levels
Input Timing Reference Level
Output Timing Reference Level
O6
0
0
5%.
PP
Test Conditions
and removed simultaneously or after V
O5
0
0
(10% to 90%) 20ns
Pins
O4
0.45V to 2.4V
1
0
0.8V to 2.0V
0.8V to 2.0V
(1)
O3
1
1
O2
Min
95
50
1
1
2
2
2
0
2
0
2
2
Limits
PP
..
O1
1
0
Max
130
105
150
O0
0
0
Units
ns
ns
ns
s
s
s
s
s
s
s
s
Data
Hex
8C
1E
7