STK12C68 Simtek, STK12C68 Datasheet - Page 8

• Manufacturer Part Number: STK12C68
• Description: 8Kx8 AutoStore nvSRAM
• Manufacturer: Simtek

STK12C68 (SMD5962-94599)
Document Control #ML0008 Rev 0.7
SOFTWARE-CONTROLLED STORE/RECALL CYCLE
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
SOFTWARE STORE/RECALL CYCLE: E Controlled
NO.
33
34
35
36
37
DQ (DATA OUT)
ADDRESS
February 2007
Standard
STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive cycles.
t
t
t
t
t
AVAV
AVEL
ELEH
ELAX
RECALL
SYMBOLS
E
Alternate
t
t
t
RC
AS
CW
t
AVEL
34
STORE/RECALL Initiation Cycle
Time
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Duration
ADDRESS #1
t
AVAV
33
PARAMETER
t
DATA VALID
ELEH
35
t
ELAX
36
STK12C68-25
MIN
25
20
20
8
0
MAX
20
ADDRESS #6
STK12C68-35
MIN
35
25
20
t
0
AVAV
33
v
DATA VALID
v
MAX
20
STK12C68-45
MIN
t
45
30
20
STORE
0
28
HIGH IMPEDANCE
/
MAX
20
t
RECALL
(V
37
CC
STK12C68-55
MIN
55
30
20
0
= 5.0V ± 10%)
MAX
20
UNITS NOTES
μs
ns
ns
ns
ns
p
u
u
u
e