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CY14V101NA-BA25XI Datasheet(PDF) 11 Page - Cypress Semiconductor

Part # CY14V101NA-BA25XI
Description  1-Mbit (128 K x 8/64 K x 16) nvSRAM Infinite read, write, and recall cycles
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY14V101NA-BA25XI Datasheet(HTML) 11 Page - Cypress Semiconductor

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CY14V101LA
CY14V101NA
Document #: 001-53953 Rev. *H
Page 11 of 22
AC Switching Characteristics
Over the Operating Range
Parameters [15]
Description
25 ns
45 ns
Unit
Cypress
Parameters
Alt
Parameters
Min
Max
Min
Max
SRAM Read Cycle
tACE
tACS
Chip enable access time
25
45
ns
tRC[16]
tRC
Read cycle time
25–45–
ns
tAA[17]
tAA
Address access time
25
45
ns
tDOE
tOE
Output enable to data valid
12
20
ns
tOHA[17]
tOH
Output hold after address change
3
3
ns
tLZCE[18, 19]
tLZ
Chip enable to output active
3
3
ns
tHZCE[18, 19]
tHZ
Chip disable to output inactive
10
15
ns
tLZOE[18, 19]
tOLZ
Output enable to output active
0
0
ns
tHZOE[18, 19]
tOHZ
Output disable to output inactive
10
15
ns
tPU[18]
tPA
Chip enable to power active
0
0
ns
tPD[18]
tPS
Chip disable to power standby
25
45
ns
tDBE[[18]
Byte enable to data valid
12
20
ns
tLZBE[18]
Byte enable to output active
0
0
ns
tHZBE[18]
Byte disable to output inactive
10
15
ns
SRAM Write Cycle
tWC
tWC
Write cycle time
25
45
ns
tPWE
tWP
Write pulse width
20
30
ns
tSCE
tCW
Chip enable to end of write
20
30
ns
tSD
tDW
Data setup to end of write
10
15
ns
tHD
tDH
Data hold after end of write
0
0
ns
tAW
tAW
Address setup to end of write
20
30
ns
tSA
tAS
Address setup to start of write
0
0
ns
tHA
tWR
Address hold after end of write
0
0
ns
tHZWE[18, 19, 20] tWZ
Write enable to output disable
10
15
ns
tLZWE[18, 19]
tOW
Output active after end of write
3
3
ns
tBW
Byte enable to end of write
20
30
ns
Switching Waveforms
Figure 4. SRAM Read Cycle #1 (Address Controlled) [16, 17, 21]
Address
Data Output
Address Valid
Previous Data Valid
Output Data Valid
t
RC
t
AA
t
OHA
Notes
15. Test conditions assume signal transition time of 1.8 ns or less, timing reference levels of VCCQ/2, input pulse levels of 0 to VCC Q(typ), and output loading of the specified
IOL/IOH and load capacitance shown in Figure 3 on page 10.
16. WE must be HIGH during SRAM read cycles.
17. Device is continuously selected with CE, OE and BHE / BLE LOW.
18. These parameters are guaranteed by design and are not tested.
19. Measured ±200 mV from steady state output voltage.
20. If WE is low when CE goes low, the outputs remain in the high-impedance state.
21. HSB must remain HIGH during READ and WRITE cycles.
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