Instruction Manual

Preliminary W24L257
- 4 -
AC Characteristics, continued
(V
DD = 3.0V to 3.6 V; VSS = 0V; TA (
°
C) = 0 to 70 for LL, -20 to 85 for LE)
Read Cycle
PARAMETER SYMBOL W24L257-70LL/LE UNIT
MIN. MAX.
Read Cycle Time T
RC
70 - nS
Address Access Time T
AA
- 70 nS
Chip Select Access Time T
ACS
- 70 nS
Output Enable to Output Valid T
AOE
- 35 nS
Chip Selection to Output in Low Z T
CLZ
* 10 - nS
Output Enable to Output in Low Z T
OLZ
* 5 - nS
Chip Deselection to Output in High Z T
CHZ
* - 30 nS
Output Disable to Output in High Z T
OHZ
* - 30 nS
Output Hold from Address Change T
OH
10 - nS
∗
These parameters are sampled but not 100% tested
Write Cycle
PARAMETER SYMBOL W24L257-70LL/LE UNIT
MIN. MAX.
Write Cycle Time T
WC
70 - nS
Chip Selection to End of Write T
CW
55 - nS
Address Valid to End of Write T
AW
55 - nS
Address Setup Time T
AS
0 - nS
Write Pulse Width T
WP
40 - nS
Write Recovery Time
CS
,
WE
T
WR
0 - nS
Data Valid to End of Write T
DW
35 - nS
Data Hold from End of Write T
DH
0 - nS
Write to Output in High Z T
WHZ
* - 25 nS
Output Disable to Output in High Z T
OHZ
* - 25 nS
Output Active from End of Write T
OW
5 - nS
∗
These parameters are sampled but not 100% tested