W28F641B Datasheet, PDF (20/31 Pages) Winbond – 64MBIT (4MBIT × 16) PAGE MODE DUAL WORK FLASH MEMORY

W28F641B/T
AC Characteristics - Read-only Operations(1)
V_DD = 2.7V to 3.6V, TA = -40°C to +85°C
PARAMETER
SYM.
MIN. MAX. UNIT
Read Cycle Time
t_AVAV
80
nS
Address to Output Delay
t_AVQV
80
nS
#CE to Output Delay (note 3)
t_ELQV
80
nS
Page Address Access Time
t_APA
35
nS
#OE to Output Delay (note 3)
t_GLQV
20
nS
#RESET High to Output Delay
t_PHQV
150
nS
#CE or #OE to Output in High Z, whichever Occurs First (note 2)
t_EHQZ, t_GHQZ,
20
nS
#CE to Output in Low Z (note 2)
t_ELQX
0
nS
#OE to Output in Low Z (note 2)
t_GLQX
0
nS
Output Hold from first Occurring Address, #CE or #OE Change
(note 2)
t_OH
0
nS
Address Setup to #CE, #OE, Going Low for Reading Status
Register (note 4,6)
t_AVEL, t_AVGL
10
nS
Address Hold from #CE, #OE, Going Low for Reading Status
Register (note 5,6)
t_ELAX, t_GLAX
30
nS
#CE, #OE Pulse Width High for Reading Status Register (note 6) t_EHEL, t_GHGL 30
nS
Notes:
1. See AC Input/Output Reference Waveform for timing measurements and maximum allowable input slew rate.
2. Sampled, not 100% tested.
3. #OE may be delayed up to t_ELQV to t_GLQV after the falling edge of #CE without impact to t_ELQV.
4. Address setup time (t_AVEL to t_AVGL) is defined from the falling edge of #CE or #OE (whichever goes low last).
5. Address hold time (t_ELAX to t_GLAX) is defined from the falling edge of #CE or #OE (whichever goes low last).
6. Specifications t_AVEL, t_AVGL, t_ELAX, t_GLAX, and t_EHEL,, t_GHGL for read operations apply to only status register read operations.
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