U637256 Datasheet, PDF (9/14 Pages) List of Unclassifed Manufacturers – CapStore 32K x 8 nvSRAM

U637256
Software Controlled STORE/RECALL Cycle^{t, u, v} (E = HIGH after STORE initiation)
Ai
E
DQi
Output
t_cR (27)
ADDRESS 1
(32)
t_w(E)SR
t_{su(A)SR (31)}
(33)
t_h(A)SR
High Impedance _VALID
t_cR (27)
ADDRESS 6
t_d(E)S (29)
VALID
t_{dis(E)SR (28)}
t_{d(E)R (30)}
Software Controlled STORE/RECALL Cycle^{t, u, v} (E = LOW after STORE initiation)
Ai
E
DQi
Output
t_cR (29)
ADDRESS 1
t_w(E)SR (34)
t_{su(A)SR (33)}
High Impedance
(35)
t_h(A)SR
VALID
ADDRESS 6
t_h(A)SR (35)
(33)
t_su(A)SR
t_{d(E)S (31)}
t_{d(E)R (32)}
VALID
t_{dis(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 U637256 performs a STORE
or RECALL.
v: E must be used to clock in the address sequence for the Software controlled STORE and RECALL cycles.
August 15, 2006
STK Control #ML0054
9
Rev 1.1