Read Cycle
Table 5. Read cycle timings(1)
AT68166FT-25
AT68166FT-20
AT68166FT-18
(preliminary)
Symbol
TAVAV
Parameter
min
max
-
min
max
min
max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Read cycle time
25
-
20
-
-
20
-
18
-
-
18
-
TAVQV
TAVQX
TELQV
TELQX
TEHQZ
TGLQV
TGLQX
TGHQZ
Address access time
Address valid to low Z
Chip-select access time
CS low to low Z(2)
25
-
5
-
5
-
5
-
25
-
20
-
18
-
5
-
5
-
5
-
CS high to high Z(2)
Output Enable access time
OE low to low Z(2)
OE high to high Z (2)
10
12
-
9
9
-
-
10
-
-
9
2
-
2
-
2
-
-
10
9
9
Notes: 1. Timings figures applicable for 8-bit, 16-bit and 32-bit mode.
2. Parameters guaranteed, not tested, with output loading 5 pF. (See “AC Test Loads Waveforms” on page 10.)
12
AT68166FT
7531H–AERO–04/09
ATMEL [ ATMEL ]
