W49V002FA Datasheet, PDF (16/32 Pages) Winbond – 256K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE

W49V002FA
Programmer Interface Mode AC Characteristics, continued
AC Characteristics
Read Cycle Timing Parameters
(VDD = 3.3V ± 5%, VGND = 0V, TA = 0 to 70° C)
PARAMETER
SYMBOL
Read Cycle Time
Row/Column Address Set Up Time
Row/Column Address Hold Time
Address Access Time
Output Enable Access Time
#OE Low to Active Output
#OE High to High-Z Output
Output Hold from Address Change
TRC
TAS
TAH
TAA
TOE
TOLZ
TOHZ
TOH
W49V002FA
MIN.
MAX.
300
-
50
-
50
-
-
200
-
100
0
-
-
50
0
-
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
Write Cycle Timing Parameters
PARAMETER
SYMBOL MIN. TYP. MAX.
Reset Time
TRST
1
-
-
Address Setup Time
TAS
50
-
-
Address Hold Time
TAH
50
-
-
R/#C to Write Enable High Time
TCWH
50
-
-
#WE Pulse Width
TWP
100
-
-
#WE High Width
TWPH
100
-
-
Data Setup Time
TDS
50
-
-
Data Hold Time
TDH
50
-
-
#OE Hold Time
TOEH
0
-
-
Byte programming Time
TBP
-
50
100
Erase Cycle Time
TEC
-
0.15
0.2
Note: All AC timing signals observe the following guidelines for determining setup and hold times:
(a) High level signal's reference level is input high and (b) low level signal's reference level is input low.
Ref. to the AC testing condition.
UNIT
µS
nS
nS
nS
nS
nS
nS
nS
nS
µS
S
Data Polling and Toggle Bit Timing Parameters
PARAMETER
SYMBOL
#OE to Data Polling Output Delay
#OE to Toggle Bit Output Delay
TOEP
TOET
W49V002FA
MIN.
MAX.
-
40
-
40
UNIT
nS
nS
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