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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)
45678910
CLK
CE
WE
CEN
BWx
ADV/LD
ADDRESS
A3 A4
A5
D(A4)
Data
In-Out (DQ)
A1
Q(A5)
WRITE
D(A4)
STALLWRITE
D(A1)
123
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.
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