CY14B101K-SP25XCT CYPRESS [Cypress Semiconductor], CY14B101K-SP25XCT Datasheet - Page 17

• Manufacturer Part Number: CY14B101K-SP25XCT
• Description: 1 Mbit (128K x 8) nvSRAM With Real Time Clock
• Manufacturer: CYPRESS [Cypress Semiconductor]

Software Controlled STORE/RECALL Cycles
In the following table, the software sequence is clocked with CE controlled or OE controlled READs. The six consecutive addresses
must be READ in the order listed in the
resistor must be connected to HSB to use the software command.
Hardware STORE Cycle
RTC Characteristics
Notes
Document Number: 001-06401 Rev. *G
t
t
t
t
t
t
t
t
I
V
V
tOCS
19. The software sequence is clocked with CE controlled or OE controlled READs.
20. The six consecutive addresses must be READ in the order listed in the
21. A 600Ω resistor must be connected to HSB to use the software command.
22. This is the amount of time it takes to take action on a soft sequence command. Vcc power must remain HIGH to effectively register the command.
23. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command.
24. READ and WRITE cycles in progress before HSB are given this amount of time to complete.
25. From either V
26. Typical = 3.0V during normal operation.
27. Typical = 2.4V during normal operation.
RC
AS
CW
GHAX
RECALL
SS
DELAY
HLHX
BAK
Parameters
RTCbat
RTCcap
Parameter
Parameter
[22, 23]
[25]
[24]
[26]
[27]
RTCcap
RTC Backup Current
RTC Battery Pin Voltage
RTC Capacitor Pin Voltage
RTC Oscillator Time to Start
STORE/RECALL Initiation Cycle Time
Address Setup Time
Clock Pulse Width
Address Hold Time
RECALL Duration
Soft Sequence Processing Time
Time Allowed to Complete SRAM Cycle
Hardware STORE Pulse Width
or V
RTCbat.
Description
Description
Description
“Mode Selection”
at Min Temperature from Power Up
or Enable
at 25°C Temperature from Power Up
or Enable
at Min Temperature from Power Up
or Enable
at 25°C Temperature from Power Up
or Enable
Min
25
20
25 ns Part
on page 5. WE must be HIGH during all six consecutive cycles. A 600Ω
0
1
“Mode Selection”
Test Conditions
Min
15
Max
100
1
70
CY14B101K
on page 5. WE must be HIGH during all six consecutive cycles.
Min
35
25
35 ns Part
0
1
Max
Max
70
100
70
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Commercial
Industrial
Industrial
Min
45
30
0
1
45 ns Part
Max
100
70
Min
1.8
1.8
1.2
1.2
Unit
μs
ns
CY14B101K
Max
300
350
3.3
3.3
2.7
2.7
10
10
5
5
Page 17 of 24
Unit
ns
ns
ns
ns
μs
μs
Units
sec
sec
sec
sec
nA
nA
V
V
V
V
[+] Feedback