AC Waveforms for Flash Memory Read Operations
tRC
Addresses
FCE
Addresses Stable
tACC
tDF
OE
tOE
FWE
tCE
tOH
High Z
High Z
Outputs
Output Valid
Write/Erase/Program
Operation for Flash Memory, FWE Controlled
Data Polling
Addresses
5555H
PA
PA
tRC
tWC
tAH
tAS
FCE
OE
tGHWL
tWP
tWHWH1
tWPH
FWE
tCE
tDF
tOH
tOE
tDH
AOH
PD
D7
DOUT
Data
5.0V
tDS
tCE
Notes:
1. PA is the address of the memory location to be programmed.
2. PD is the data to be programmed at byte address.
3. D7 is the 0utput of the complement of the data written to the deviced.
4. Dout is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
6
Aeroflex Circuit Technology
SCD1663 REV A 4/28/98 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
