P R E L I M I N A R Y
SWITCHING WAVEFORMS
tRC
Addresses Stable
tACC
Addresses
CE
tDF
tOE
OE
tOEH
tCE
WE
tOH
HIGH Z
HIGH Z
Output Valid
Outputs
20511C-15
Figure 12. AC Waveforms for Read Operations
Data Polling
tAS
tWC
ADDRESSES
555H
PA
PA
tAH
tRC
CE
OE
tGHWL
tWP
tWHWH1_or_2
WE
tDF
tCS
tWPH
tDS
tOE
tDH
DQ7
DOUT
A0H
PD
DATA
VCC
tOH
tCE
tVCS
Notes:
1. DQ7 is the output of the complement of the data written to the device.
2. D is the output of the data written to the device.
OUT
3. PA is the address of the memory location to be programmed.
4. PD is the data to be programmed at the byte address.
5. Illustration shows the last two cycles of a four-bus-cycle sequence..
20511C-16
Figure 13. AC Waveforms for Program Operations
Am29LV008T/Am29LV008B
31
CYPRESS [ CYPRESS ]
