cy14b104n-zsp45xit Cypress Semiconductor Corporation., cy14b104n-zsp45xit Datasheet - Page 10

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

AutoStore/Power Up RECALL
Software Controlled STORE/RECALL Cycle
In the following table, the software controlled STORE/RECALL cycle parameters are listed.
Hardware STORE Cycle
Switching Waveforms
Notes
t
t
V
t
t
t
t
t
t
t
t
t
15. t
16. If an SRAM write has not taken place since the last nonvolatile cycle, no STORE takes place.
17. The software sequence is clocked with CE controlled or OE controlled reads.
18. The six consecutive addresses must be read in the order listed in
19. This is the amount of time it takes to take action on a soft sequence command.Vcc power must remain HIGH to effectively register command.
20. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command
21. On a hardware STORE initiation, SRAM operation continues to be enabled for time t
22. HSB must remain HIGH during READ and WRITE cycles.
HRECALL
STORE
VCCRISE
RC
AS
CW
GHAX
RECALL
SS
DELAY
HLHX
Document #: 001-07102 Rev. *G
SWITCH
Parameters
Parameters
Parameters
[19, 20]
DQ (DATA OUT)
HRECALL
[21]
[16]
ADDRESS
[15]
starts from the time V
Time allowed to complete SRAM Cycle
Hardware STORE Pulse Width
STORE/RECALL Initiation Cycle Time
Address Setup Time
Clock Pulse Width
Address Hold Time
RECALL Duration
Soft Sequence Processing Time
Power Up RECALL Duration
STORE Cycle Duration
Low Voltage Trigger Level
VCC Rise Time
CC
rises above V
Figure 6. SRAM Read Cycle #1: Address Controlled
Description
SWITCH.
t
OHA
Description
Description
t
AA
PRELIMINARY
Table 1
on page 5. WE must be HIGH during all six consecutive cycles.
t
RC
DELAY
Min
15
12
0
1
15ns
to allow read/write cycles to complete.
DATA VALID
Max
200
70
CY14B104L/CY14B104N
Min
Min
150
25
20
0
1
[11, 12, 22]
[17, 18]
25ns
CY14B104L, CY14B104N
CY14B104L/CY14B104N
Min
Max
200
15
70
1
Max
2.65
20
15
Min
45
30
0
1
45ns
Max
70
Max
200
70
Page 10 of 22
Unit
ms
ms
μs
V
Unit
Unit
ns
ns
ns
ns
μs
μs
μs
ns
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