STK12C68
v
e
SOFTWARE-CONTROLLED STORE/RECALL CYCLE
(V = 5.0V 10%)
CC
SYMBOLS
STK12C68-25 STK12C68-35 STK12C68-45 STK12C68-55
NO.
PARAMETER
UNITS NOTES
Standard Alternate
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
33
t
t
STORE/RECALL Initiation Cycle
Time
AVAV
RC
25
35
45
55
ns
p
34
35
36
37
t
t
t
t
t
t
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Duration
0
0
0
0
ns
ns
ns
μs
u
u
u
AVEL
AS
20
20
25
20
30
20
30
20
ELEH
CW
ELAX
20
20
20
20
RECALL
Note u: The software sequence is clocked with E controlled READs.
Note v: The six consecutive addresses must be in the order listed in the Hardware Mode Selection Table: (0000, 1555, 0AAA, 1FFF, 10F0, 0F0F) for a
STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive cycles.
v
SOFTWARE STORE/RECALL CYCLE: E Controlled
33
AVAV
33
t
AVAV
t
ADDRESS #1
ADDRESS #6
ADDRESS
34
AVEL
35
t
ELEH
t
E
36
ELAX
t
28
37
RECALL
t
STORE / t
HIGH IMPEDANCE
DATA VALID
DATA VALID
DQ (DATA OUT)
March 2006
7
Document Control # ML0008 rev 0.5
CYPRESS [ CYPRESS ]
