Cypress CY14B101L Manual do Utilizador descarregar pdf (Página 13)

CY14B101LPRELIMINARY

Document #: 001-06400 Rev. *E Page 13 of 18

Figure 3. AutoStore/Power Up RECALL

Figure 4. CE

-Controlled Software STORE/RECALL Cycle

[17]

Switching Waveforms (continued)

V

CC

V

SWITCH

t

STORE

t

STORE

t

HRECALL

t

HRECALL

AutoStore

POWER-UP RECALL

Read & Write Inhibited

STORE occurs only

if a SRAM write

has happened

No STORE occurs

without atleast one

SRAM write

t

VCCRISE

a

a

t

RC

t

RC

t

SA

t

SCE

t

GLAX

t

STORE

/ t

RECALL

DATA VALID

DATA VALID

ADDRESS # 1 ADDRESS # 6

HIGH IMPEDANCE

ADDRESS

CE

OE

DQ (DATA)

a

a

a

a

a

a

a

a

a

a

a

a

t

GHAX

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