CY7C1470BV33
CY7C1472BV33, CY7C1474BV33
Document #: 001-15031 Rev. *C
Page 24 of 30
Figure 6
shows NOP, STALL and DESELECT Cycles waveform.
[20, 21, 23]
Figure 6. NOP, STALL and DESELECT Cycles
Figure 7
shows ZZ Mode timing waveform.
[24, 25]
Figure 7. ZZ
Mode Timing
Switching Waveforms
(continued)
READ
Q(A3)
4
5
6
7
8
9
10
CLK
CE
WE
CEN
BWx
ADV/LD
ADDRESS
A3
A4
A5
D(A4)
Data
In-Out (DQ)
A1
Q(A5)
WRITE
D(A4)
STALL
WRITE
D(A1)
1
2
3
READ
Q(A2)
STALL
NOP
READ
Q(A5)
DESELECT
CONTINUE
DESELECT
DON’T CARE
UNDEFINED
t
CHZ
A2
D(A1)
Q(A2)
Q(A3)
t
ZZ
I
SUPPLY
CLK
ZZ
t
ZZREC
A LL INPUTS
(except ZZ)
DON’T CARE
I
DDZZ
t
ZZI
t
RZZI
Outputs (Q)
High-Z
DESELECT or READ Only
Notes
23. The IGNORE CLOCK EDGE or STALL cycle (Clock 3) illustrated CEN being used to create a pause. A Write is not performed during this cycle.
24. Device must be deselected when entering ZZ mode. See
“Truth Table” on page 10
for all possible signal conditions to deselect the device.
25. IOs are in High-Z when exiting ZZ sleep mode.
[+] Feedback