English
Language : 

W28V400B Datasheet, PDF (29/48 Pages) Winbond – 4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY
W28V400B/T
AC Characteristics - Read-only Operations(1)
VDD = 2.7V to 3.6V, TA = 0° C to +70° C
PARAMETER
Read Cycle Time
Address to Output Delay
#CE to Output Delay (Note 2)
#RESET High to Output Delay
#OE to Output Delay (Note 2)
#CE to Output in Low Z (Note 3)
#CE High to Output in High Z (Note 3)
#OE to Output in Low Z (Note 3)
#OE High to Output in High Z (Note 3)
Output Hold from Address −, #CE or #OE Change,
Whichever Occurs First (Note 3)
#BYTE to Output Delay (Note 3)
#BYTE Low to Output in High Z (Note 3)
#CE to #BYTE High or Low (Note 3, 6)
Notes: See 5.0V VDD Read-only Operations for notes 1 through 6.
SYM.
tAVAV
tAVQV
tELQV
tPHQV
tGLQV
tELQX
tEHQZ
tGLQX
tGHQZ
tOH
tFVQV
tFLQZ
tELFV
MIN.
120
0
0
0
MAX.
120
120
600
50
55
20
120
30
5
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
VDD = 3.3V ±0.3V, TA = 0 ° C to +70° C
PARAMETER
Read Cycle Time
Address to Output Delay
#CE to Output Delay (Note 2)
#RESET High to Output Delay
#OE to Output Delay (Note 2)
#CE to Output in Low Z (Note 3)
#CE High to Output in High Z (Note 3)
#OE to Output in Low Z (Note 3)
#OE High to Output in High Z (Note 3)
Output Hold from Address, #CE or #OE Change, Whichever
Occurs First (Note 3)
#BYTE to Output Delay (Note 3)
#BYTE Low to Output in High Z (Note 3)
#CE to #BYTE High or Low (Note 3, 6)
Note: See 5.0V VDD Read-only Operations for notes 1 through 6.
SYM.
tAVAV
tAVQV
tELQV
tPHQV
tGLQV
tELQX
tEHQZ
tGLQX
tGHQZ
tOH
tFVQV
tFLQZ
tELFV
MIN.
100
0
0
0
MAX.
100
100
600
50
55
20
100
30
5
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
- 29 -
Publication Release Date: April 11, 2003
Revision A4