U635H64
Software Controlled STORE/RECALL Cycle
s, t, u, v
(E = HIGH after STORE initiation)
t
cR
(27)
t
cR
(27)
ADDRESS 6
t
h(A)SR
(33)
t
w(E)SR
t
dis(E)
(5)
(32)
(31)
t
su(A)SR
t
d(E)S
(29)
t
d(E)R
(30)
VALID
t
dis(E)SR
(28)
Ai
E
DQi
Output
ADDRESS 1
t
w(E)SR
t
su(A)SR
(31)
High Impedance
(32)
(33)
t
h(A)SR
VALID
Software Controlled STORE/RECALL Cycle
s, t, u, v
(
E = LOW after STORE initiation)
t
cR
(27)
Ai
E
DQi
Output
ADDRESS 1
t
w(E)SR
t
su(A)SR
(31)
High Impedance
(32)
(33)
t
h(A)SR
(31)
ADDRESS 6
t
h(A)SR
(33)
t
su(A)SR
t
d(E)S
(29)
VALID
t
d(E)R
(30)
VALID
t
dis(E)SR
(28)
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 whether the U635H64 performs a STORE
or RECALL.
v: E must be used to clock in the address sequence for the software controlled STORE and RECALL cycles.
March 31, 2006
STK Control #ML0052
9
Rev 1.0
SIMTEK [ SIMTEK CORPORATION ]
