UL635H256S2C45G1 데이터 시트보기 (PDF) - Zentrum Mikroelektronik Dresden AG

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UL635H256S2C45G1

Low Voltage PowerStore32K x 8 nvSRAM

Zentrum Mikroelektronik Dresden AG 

UL635H256

Software Controlled STORE/RECALL Cyclet, u, v (E = HIGH after STORE initiation)

Ai

E

DQi

Output

tcR (27)

ADDRESS 1

tsu(A)SR (31)

tw(E)SR

(32)

th(A)SR (33)

High Impedance VALID

tcR (27)

ADDRESS 6

td(E)S (29) td(E)R (30)

VALID

tdis(E)SR (28)

Software Controlled STORE/RECALL Cyclet, u, v, w (E = LOW after STORE initiation)

Ai

E

DQi

Output

tcR (29)

ADDRESS 1

tsu(A)SR (33)

tw(E)SR

(34)

th(A)SR (35)

High Impedance

VALID

ADDRESS 6

th(A)SR

(35)

(33)

tsu(A)SR

td(E)S (31) td(E)R (32)

VALID

tdis(E)SR (30)

u: W must be HIGH when E is LOW during the address sequence in order to initiate a nonvolatile cycle. G may be either HIGH or LOW

throughout. Addresses 1 through 6 are found in the mode selection table. Address 6 determines wheter the UL635H256 performs a STORE

or RECALL.

v: E must be used to clock in the address sequence for the Software controlled STORE and RECALL cycles.

April 7, 2005

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