Owner's manual

AT27C512R
7
Notes: 1. V
CC
must be applied simultaneously or before OE/V
PP
and removed simultaneously or after OE/V
PP
.
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven—
see timing diagram.
3. Program Pulse width tolerance is 100
µ
sec
±
5%.
AC Programming Characteristics
T
A
= 25
±
5°C, V
CC
= 6.5
±
0.25V, OE/V
PP
= 13.0
±
0.25V
Symbol Parameter Test Conditions
(1)
Limits
UnitsMin Max
t
AS
Address Setup Time
Input Rise and Fall Times
(10% to 90%) 20ns
Input Pulse Levels
0.45V to 2.4V
Input Timing Reference Level
0.8V to 2.0V
Output Timing Reference Level
0.8V to 2.0V
2
µ
s
t
OES
OE/V
PP
Setup Time 2
µ
s
t
OEH
OE/V
PP
Hold Time 2
µ
s
t
DS
Data Setup Time 2
µ
s
t
AH
Address Hold Time 0
µ
s
t
DH
Data Hold Time 2
µ
s
t
DFP
CE High to
Output Float Delay
(2)
0 130 ns
t
VCS
V
CC
Setup Time 2
µ
s
t
PW
CE Program Pulse Width
(3)
95 105
µ
s
t
DV
Data Valid from CE
(2)
1
µ
s
t
VR
OE/V
PP
Recovery Time 2
µ
s
t
PRT
OE/V
PP
Pulse Rise
Time During Programming
50 ns
Atmel’s 27C512R Integrated Product Identification Code
Codes
Pins
Hex
DataA0 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer 000011110 1E
Device Type 100001101 0D