STK14EC16 Datasheet, PDF (9/21 Pages) Simtek Corporation – 256Kx16 AutoStore nvSRAM

Preliminary
SOFTWARE-CONTROLLED STORE/RECALL CYCLE^k.l
STK14EC16
Symbols
NO.
E Cont^k
G Cont^k Alternate
PARAMETER
STK14EC16-15 STK14EC16-25 STK14EC16-45
UNITS NOTES
MIN MAX MIN MAX MIN MAX
30
t_AVAV
t_AVAV
t_RC
STORE/RECALL Initiation Cycle Time 15
25
45
ns
31
t_AVEL
t_AVGL
t_AS
Address Set-up Time
0
0
0
ns
32
t_ELEH
t_GLGH
t_CW
Clock Pulse Width
12
20
30
ns
33
t_EHAX
t_GHAX
Address Hold Time
1
1
1
ns
l
34
t_RECALL
t_RECALL
RECALL Duration
150
150
150
μs
Note k: The software sequence is clocked on the falling edge of E controlled READs or G controlled READs
Note l: The six consecutive addresses must be read in the order listed in the Software STORE/RECALL Mode Selection Table. W must be high during
all six consecutive E or G controlled cycles.
SOFTWARE STORE/RECALL CYCLE: E CONTROLLED^l
ADDRESS
30
tAVAV
ADDRESS #1
30
t AVAV
ADDRESS #6
31
32
E
tAVEL
tELEH
G
DQ (DATA)
33
tEHAX
DATA VALID
Deby
/ ²⁷
34
t STORE t RECALL
HIGH IMPEDENCE
DATA VALID
SOFTWARE STORE/RECALL CYCLE: G CONTROLLED^l
30
t AVAV
30
tAVAV
ADDRESS
ADDRESS #1
ADDRESS #6
E
G
DQ (DATA)
31
t AVGL
32
t GLGH
33
tGHAX
DATA VALID
Pachuco Boys
27 _/ 34
t STORE t RECALL
DATA VALID
HIGH IMPEDENCE
Document Control #ML0061 Rev 1.1
Jan, 2008
9
Simtek Confidential