AT27LV020A
8
Notes: 1. V
CC
must be applied simultaneously or before V
PP
and removed simultaneously or after 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 µsec=±=5%.
Note: 1. The AT27LV020A has the same Product Identification Code as the AT27C020. Both are programming compatible.
AC Programming Characteristics
T
A
= 25 ± 5°C, V
CC
= 6.5 ± 0.25V, 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%) 20 ns
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
2µs
t
CES
CE Setup Time 2 µs
t
OES
OE Setup Time 2 µs
t
DS
Data Setup Time 2 µs
t
AH
Address Hold Time 0 µs
t
DH
Data Hold Time 2 µs
t
DFP
OE High to Output Float Delay
(3)
0 130 ns
t
VPS
V
PP
Setup Time 2 µs
t
VCS
V
CC
Setup Time 2 µs
t
PW
PGM Program Pulse Width
(2)
95 105 µs
t
OE
Data Valid from OE 150 ns
t
PRT
V
PP
Pulse Rise Time During
Programming
50 ns
Atmel’s 27LV020A Integrated Product Identification Code
(1)
Codes
Pins
Hex
DataA0 O7 O6 O5 O4 O3 O2 O1 O0
Manufacturer 0 00011110 1E
Device Type 1 10000110 86
