HY29F800
AC CHARACTERISTICS
Erase Command Sequence (last two cycles)
Read Status Data (last two cycles)
tW C
tAS
tAH
Addresses
CE#
0x2AA
SA
VA
VA
Address = 0x555
for chip erase
tG H W L
OE#
tCH
tW P
WE#
tW H W H 2 or
tW H W H 3
tCS
tW P H
tDS
Data = 0x10
for chip erase
tDH
Data
0x55
0x30
tBUSY
Status
DOUT
tRB
RY/BY#
VCC
tVCS
Notes:
1. SA =Sector Address (for sector erase), VA = Valid Address for reading status data (see Write Operation Status section),
DOUT is the true data at the read address.(0xFF after an erase operation).
2. Commands shown are for Word mode operation.
3. VCC shown only to illustrate tVCS measurement references. It cannot occur as shown during a valid command sequence.
Figure 18. Sector/Chip Erase Operation Timings
Rev. 4.0/Jan. 00
29
ETC [ ETC ]
