Preliminary W24257C
- 4 -
AC Characteristics, continued
(VDD = 5V ±10%, VSS = 0V, TA = 0 to 70° C)
Read Cycle
PARAMETER SYM. W24257C-70 W24257C-10 UNIT
MIN. MAX. MIN. MAX.
Read Cycle Time TRC 70 -100 -nS
Address Access Time TAA -70 -100 nS
Chip Select Access Time TACS -70 -100 nS
Output Enable to Output Valid TAOE -35 -50 nS
Chip Selection to Output in Low Z TCLZ*10 -10 -nS
Output Enable to Output in Low Z TOLZ*5-5-nS
Chip Deselection to Output in High Z TCHZ*-30 -35 nS
Output Disable to Output in High Z TOHZ*-30 -35 nS
Output Hold from Address Change TOH 10 -10 -nS
∗ These parameters are sampled but not 100% tested
Write Cycle
PARAMETER SYM. W24257C-70 W24257C-10 UNIT
MIN. MAX. MIN. MAX.
Write Cycle Time TWC 70 -100 -nS
Chip Selection to End of Write TCW 60 -80 -nS
Address Valid to End of Write TAW 60 -80 -nS
Address Setup Time TAS 0-0-nS
Write Pulse Width TWP 45 -60 -nS
Write Recovery Time
,
TWR 0-0-nS
Data Valid to End of Write TDW 30 -40 -nS
Data Hold from End of Write TDH 0-0-nS
Write to Output in High Z TWHZ*-30 -30 nS
Output Disable to Output in High Z TOHZ*-30 -30 nS
Output Active from End of Write TOW 0-0-nS
∗ These parameters are sampled but not 100% tested