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STK14C88-3NF45 Fiches technique(PDF) 9 Page - Simtek Corporation

No de pièce STK14C88-3NF45
Description  32Kx8 AutoStore nvSRAM
Download  18 Pages
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Fabricant  SIMTEK [Simtek Corporation]
Site Internet  http://www.simtek.com
Logo SIMTEK - Simtek Corporation

STK14C88-3NF45 Fiches technique(HTML) 9 Page - Simtek Corporation

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9
STK14C88-3
Feb, 2008
Document Control #ML0015 Rev 2.0
SOFTWARE STORE/RECALL MODE SELECTION
SOFTWARE-CONTROLLED STORE/RECALL CYCLEv
(VCC = 3V - 3.6V)
e
Note r:
The six consecutive addresses must be in the order listed. W must be high during all six consecutive E controlled cycles to enable a nonvola-
tile cycle.
Note s:
While there are 15 addresses on the STK14C88-3, only the lower 14 are used to control software modes.
Note t:
I/O state assumes G < VIL. Activation of nonvolatile cycles does not depend on state of G.
Note u:
The software sequence is clocked on the falling edge of E controlled READs without involving G (double clocking will abort the sequence).
See application note:MA0002 http://www.simtek.com/attachments/AppNote02.pdf.
Note v:
The six consecutive addresses must be in the order listed in the Software STORE/RECALL Mode Selection Table: (0E38, 31C7, 03E0, 3C1F,
303F, 0FC0) for a STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) for a RECALL cycle. W must be high during all six consecutive
cycles.
SOFTWARE STORE/RECALL CYCLE: E CONTROLLEDv
E
W
A13 - A0 (hex)
MODE
I/O
POWER
NOTES
L
H
0E38
31C7
03E0
3C1F
303F
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Output Data
Output Data
Output Data
Output Data
Output Data
Active
n, r, s, t
0FC0
Nonvolatile
STORE
Output High Z
lCC2
L
H
0E38
31C7
03E0
3C1F
303F
0C63
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile
RECALL
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Active
n, r, s, t
NO.
SYMBOLS
PARAMETER
STK14C88-3-
35
STK14C88-3-
45
UNITS NOTES
Standard
Alternate
MIN
MAX
MIN
MAX
33
tAVAV
tRC
STORE
/RECALL Initiation Cycle Time
35
45
ns
n
34
tAVEL
tAS
Address Set-up Time
0
0
ns
u, v
35
tELEH
tCW
Clock Pulse Width
25
30
ns
u,v
36
tELAX
Address Hold Time
20
20
ns
u, v
37
tRECALL
RECALL
Duration
20
20
μs
DATA VALID
HIGH IMPEDANCE
ADDRESS #6
ADDRESS #1
DATA VALID
33
tAVAV
DATA VALID
DQ (DATA
E
ADDRESS
28
37
tSTORE / tRECALL
33
tAVAV
34
tAVEL
35
tELEH
36
tELAX


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