Cypress CY14B101NA Manual De Usuario
PRELIMINARY
CY14B101LA, CY14B101NA
Document #: 001-42879 Rev. *B
Page 13 of 25
Software Controlled STORE/RECALL Cycle
Parameters
Description
20 ns
25 ns
45 ns
Unit
Min
Max
Min
Max
Min
Max
t
RC
STORE/RECALL Initiation Cycle Time
20
25
45
ns
t
SA
Address Setup Time
0
0
0
ns
t
CW
Clock Pulse Width
15
20
30
ns
t
HA
Address Hold Time
0
0
0
ns
t
RECALL
RECALL Duration
200
200
200
µs
Switching Waveforms
Figure 12. CE and OE Controlled Software STORE/RECALL Cycle
Figure 13. Autostore Enable / Disable Cycle
t
RC
t
RC
t
SA
t
CW
t
CW
t
SA
t
HA
t
LZCE
t
HZCE
t
HA
t
HA
t
HA
t
DELAY
t
STORE
/t
RECALL
t
HHHD
t
LZHSB
High Impedance
Address #1
Address #6
Address
CE
OE
HSB (STORE only)
DQ (DATA)
RWI
t
RC
t
RC
t
SA
t
CW
t
CW
t
SA
t
HA
t
LZCE
t
HZCE
t
HA
t
HA
t
HA
t
DELAY
Address #1
Address #6
Address
CE
OE
DQ (DATA)
t
SS
Notes
27. The software sequence is clocked with CE controlled or OE controlled reads.
28. The six consecutive addresses must be read in the order listed in
28. The six consecutive addresses must be read in the order listed in
on page 5. WE must be HIGH during all six consecutive cycles.