W26020A Datasheet, PDF (4/10 Pages) Winbond – 128K X 16 High Speed CMOS Static RAM

W26020A
AC Test Loads and Waveform
5V
OUTPUT
R1 480 ohm
30 pF
Including
Jig and
Scope
R2
255 ohm
R1 480 ohm
5V
OUTPUT
5 pF
Including
Jig and
Scope
R2
255 ohm
( For TCLZ, TBLZ, TOLZ, TCHZ, TBHZ, TOHZ, ^TWHZ, ^TOW ⁾
3.0V
90%
90%
0V
10%
3 nS
10%
3 nS
Read Cycle
(VDD = 5V ±10%, VSS = 0V, TA = 0 to 70° C)
PARAMETER
SYM.
Read Cycle Time
TRC
Address Access Time
TAA
Chip Select Access Time
TACS
Output Enable to Output Valid
TAOE
UB , LB Access Time
TBA
Output Hold from Address Change
TOH
Chip Select to Output in Low Z
TCLZ*
Chip Deselect to Output in High Z
TCHZ*
Output Enable to Output in Low Z
TOLZ*
Output Disable to Output in High Z
UB , LB Select to Output in Low Z
TOHZ*
TBLZ*
UB , LB Deselect to Output in High Z ^TBHZ*
∗ These parameters are sampled but not 100% tested.
W26020A-20
MIN.
MAX.
20
-
−
20
−
20
−
10
−
10
4
−
3
−
−
10
0
−
−
10
0
−
−
10
W26020A-25
MIN.
MAX.
25
-
−
25
−
25
−
12
−
12
5
−
5
−
−
12
0
−
−
12
0
−
−
12
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
-4-