cy14b104n-zsp45xit Cypress Semiconductor Corporation., cy14b104n-zsp45xit Datasheet - Page 12

• Manufacturer Part Number: cy14b104n-zsp45xit
• Description: 4-mbit 512k X 8/256k X 16 Nvsram
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Note
Document #: 001-07102 Rev. *G
25. Read and Write cycles are ignored during STORE, RECALL and while VCC is below V
BHE , BLE
Read & Write Inhibited
POWER-UP RECALL
ADDRESS
DATA OUT
DATA IN
WE
CE
AutoStore
V
SWITCH
V
CC
t
VCCRISE
(continued)
t
HRECALL
Figure 9. SRAM Write Cycle #2: CE Controlled
t
SA
Figure 10. AutoStore or Power Up RECALL
PRELIMINARY
HIGH IMPEDANCE
t
t
AW
STORE
t
t
t
SCE
WC
PWE
SWITCH.
t
BW
t
SD
t
DATA VALID
HRECALL
[14, 22, 23, 24]
STORE occurs only
if a SRAM write
has happened
[25]
CY14B104L, CY14B104N
t
HA
t
t
HD
STORE
No STORE occurs
without atleast one
SRAM write
Page 12 of 22
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