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

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

Software Controlled STORE/RECALL Cycle
Hardware STORE Cycle
RTC Characteristics
Notes
Document #: 001-06401 Rev. *E
t
t
t
t
t
t
t
t
I
V
V
tOCS
18. The software sequence is clocked with CE controlled or OE controlled READs.
19. The six consecutive addresses must be READ in the order listed in the mode selection table. WE must be HIGH during all six consecutive cycles.
20. A 600Ω resistor must be connected to HSB to use the software command.
21. 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.
22. Commands like STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command.
23. READ and WRITE cycles in progress before HSB are given this amount of time to complete.
24. From either V
25. Typical = 3.0V during normal operation.
26. Typical = 2.4V during normal operation.
RC
AS
CW
GHAX
RECALL
SS
DELAY
HLHX
BAK
Parameters
Parameter
Parameter
RTCbat
RTCcap
[21, 22]
[24]
[23]
[25]
[26]
RTCcap
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
RTC Backup Current
RTC Battery Pin Voltage
RTC Capacitor Pin Voltage
RTC Oscillator Time to Start
or V
RTCbat.
Description
Description
Description
PRELIMINARY
@Min Temperature from Power up
or Enable
@25°C Temperature from Power
up or Enable
@Min Temperature from Power up
or Enable
@25°C Temperature from Power
up or Enable
[18, 19, 20]
Min
25
20
25 ns part
0
1
Min
15
Test Conditions
1
Max
100
CY14B101K
70
Min
35
25
35 ns part
0
1
Max
70
Max
100
70
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Commercial
Commercial
Industrial
Industrial
Min
45
30
0
1
45 ns part
Min
CY14B101K
1.8
1.8
1.2
1.2
Max
100
Unit
70
µs
ns
Page 17 of 24
Max
300
350
3.3
3.3
2.7
2.7
10
10
5
5
Unit
ns
ns
ns
ns
µs
µs
Units
sec
sec
sec
sec
nA
nA
V
V
V
V
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