STK12C68
SOFTWARE-CONTROLLED STORE/RECALL CYCLEv
(VCC = 5.0V ± 10%)e
SYMBOLS
STK12C68-25 STK12C68-35 STK12C68-45 STK12C68-55
NO.
PARAMETER
UNITS NOTES
Standard Alternate
MIN
25
0
MAX
MIN
35
0
MAX
MIN
45
0
MAX
MIN
55
0
MAX
33
34
35
36
37
t
t
t
t
t
t
t
t
STORE/RECALL Initiation Cycle Time
Address Set-up Time
Clock Pulse Width
ns
ns
ns
ns
µs
p
u
u
u
AVAV
RC
AS
AVEL
20
20
25
20
30
20
30
20
ELEH
ELAX
RECALL
CW
Address Hold Time
RECALL Duration
20
20
20
20
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.
SOFTWARE STORE/RECALL CYCLE: E Controlledv
33
AVAV
33
AVAV
t
t
ADDRESS #1
ADDRESS #6
ADDRESS
34
AVEL
35
ELEH
t
t
E
36
ELAX
t
28
37
RECALL
t
STORE / t
HIGH IMPEDANCE
DATA VALID
DATA VALID
DQ (DATA OUT)
October 2003
7
Document Control # ML0008 rev 0.4
SIMTEK [ SIMTEK CORPORATION ]
