EN29F800 Datasheet, PDF (29/38 Pages) List of Unclassifed Manufacturers – 8 Megabit (1024K x 8-bit / 512K x 16-bit) Flash Memory Boot Sector Flash Memory, CMOS 5.0 Volt-only

SWITCHING WAVEFORMS
EN29F800
Figure 6. AC Waveforms for Chip/Sector Erase Operations Timings
Addresses
CE#
OE#
WE#
Data
RY/BY#
Erase Command Sequence (last 2 cycles)
tWC
tAS
tAH
Read Status Data (last two cycles)
0x2AA
SA
VA
VA
0x555 for chip
erase
tGHWL
tCH
tWP
tCS
tWPH
tWHWH2 or tWHWH3
0x55
tDS
tDH
0x30
tBUSY
0x555 for chip
erase
Status
DOUT
tRB
VCC
tVCS
Notes:
1. SA=Sector Address (for sector erase), VA=Valid Address for reading status, Dout=true data at read address.
2. Vcc shown only to illustrate tvcs measurement references. It cannot occur as shown during a valid command
sequence.
4800 Great America Parkway, Suite 202
29
Santa Clara, CA 95054
Rev. E, Issue Date: 2001/07/05
Tel: [phone]
Fax: [phone]