ADVANCE

CY14E102L, CY14E102N

 

 

 

 

 

 

 

 

 

 

AutoStore and Power Up RECALL

Parameters

Description

CY14E102L/CY14E102N

Unit

Min

Max

 

 

 

 

t

[16]

Power Up RECALL Duration

 

20

ms

HRECALL

 

 

 

 

 

tSTORE [17]

STORE Cycle Duration

 

15

ms

VSWITCH

 

Low Voltage Trigger Level

 

4.4

V

tVCCRISE

 

VCC Rise Time

150

 

μs

Software Controlled STORE and RECALL Cycle

The following table lists the software controlled STORE and RECALL cycle parameters.[18, 19]

Parameters

Description

15ns

20 ns

25ns

45ns

Unit

Min

Max

Min

Max

Min

Max

Min

Max

 

 

 

tRC

STORE and RECALL Initiation Cycle Time

15

 

20

 

25

 

45

 

ns

tAS

Address Setup Time

0

 

0

 

0

 

0

 

ns

tCW

Clock Pulse Width

12

 

15

 

20

 

30

 

ns

tGHAX

Address Hold Time

1

 

1

 

1

 

1

 

ns

tRECALL

RECALL Duration

 

200

 

200

 

200

 

200

μs

tSS [20, 21]

Soft Sequence Processing Time

 

70

 

70

 

70

 

70

μs

Hardware STORE Cycle

Parameters

Description

CY14E102L/CY14E102N

Unit

Min

Max

 

 

 

tDELAY [22]

Time allowed to complete SRAM cycle

1

70

μs

tHLHX

Hardware STORE pulse width

15

 

ns

Notes

16.tHRECALL starts from the time VCC rises above VSWITCH.

17.If an SRAM Write has not taken place since the last nonvolatile cycle, no STORE takes place.

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.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.

21.Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command.

22.On a hardware STORE initiation, SRAM operation continues to be enabled for time tDELAY to allow read and write cycles to complete.

Document Number: 001-45755 Rev. *A

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Cypress CY14E102L manual AutoStore and Power Up Recall, Software Controlled Store and Recall Cycle, Hardware Store Cycle