Cypress manual Software Controlled STORE/RECALL Cycle, Preliminary, CY14B101LA, CY14B101NA

Models: CY14B101NA CY14B101LA

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Software Controlled STORE/RECALL Cycle

 

 

 

PRELIMINARY

CY14B101LA, CY14B101NA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software Controlled STORE/RECALL Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameters[27, 28]

 

 

Description

20 ns

25 ns

45 ns

Unit

 

 

Min

Max

Min

Max

Min

Max

 

 

 

 

 

tRC

STORE/RECALL Initiation Cycle Time

20

 

25

 

45

 

ns

tSA

Address Setup Time

0

 

0

 

0

 

ns

tCW

Clock Pulse Width

15

 

20

 

30

 

ns

tHA

Address Hold Time

0

 

0

 

0

 

ns

tRECALL

RECALL Duration

 

200

 

200

 

200

µs

Switching Waveforms

Figure 12. CE and OE Controlled Software STORE/RECALL Cycle[28]

 

 

tRC

tRC

 

Address

 

Address #1

Address #6

 

 

tSA

tCW

tCW

 

 

 

 

CE

 

tHA

tHA

 

t

 

 

SA

tHA

 

 

t

 

 

 

 

 

 

 

HA

 

OE

 

 

 

 

 

 

 

tDELAY

tHHHD

HSB (STORE only)

tLZCE

tHZCE

 

tLZHSB

 

 

High Impedance

DQ (DATA)

 

 

 

 

 

tSTORE/tRECALL

 

 

 

 

 

RWI

 

 

 

 

 

 

Figure 13. Autostore Enable / Disable Cycle

 

 

tRC

Address

Address #1

tSA

tCW

CE

 

tSA

 

OE

 

tLZCE

 

DQ (DATA)

 

 

tRC

 

Address #6

 

tCW

tHA

tHA

tHA

t

 

HA

tHZCE

tSS

tDELAY

 

Notes

27.The software sequence is clocked with CE controlled or OE controlled reads.

28.The six consecutive addresses must be read in the order listed in Table 2 on page 5. WE must be HIGH during all six consecutive cycles.

Document #: 001-42879 Rev. *B

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Cypress Software Controlled STORE/RECALL Cycle, Preliminary, CY14B101LA, CY14B101NA, Switching Waveforms, Parameters27