STK14C88-CF25 SIMTEK [Simtek Corporation], STK14C88-CF25 Datasheet - Page 8

• Manufacturer Part Number: STK14C88-CF25
• Description: 32Kx8 AutoStore nvSRAM
• Manufacturer: SIMTEK [Simtek Corporation]

STK14C88
Document Control #ML0014 Rev 0.3
SOFTWARE STORE/RECALL MODE SELECTION
SOFTWARE-CONTROLLED STORE/RECALL CYCLE
Note r:
Note s: While there are 15 addresses on the STK14C88, only the lower 14 are used to control software modes.
Note t:
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: (0E38, 31C7, 03E0, 3C1F, 303F, 0FC0) for a
SOFTWARE STORE/RECALL CYCLE: E CONTROLLED
NO.
33
34
35
36
37
ADDRESS
E
L
L
DQ (DATA
February, 2007
Standard
The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
I/O state assumes G < V
STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) 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
W
H
H
Alternate
t
t
t
RC
AS
CW
A
t
AVEL
13
34
- A
3C1F
0FC0
3C1F
0E38
31C7
03E0
303F
0E38
31C7
03E0
303F
0C63
STORE/RECALL Initiation Cycle Time
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Duration
ADDRESS #1
IL
0
. Activation of nonvolatile cycles does not depend on state of G.
(hex)
t
AVAV
33
t
DATA VALID
ELEH
35
t
ELAX
36
PARAMETER
Nonvolatile
Nonvolatile
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
MODE
RECALL
STORE
8
ADDRESS #6
t
STK14C88-25
AVAV
MIN
33
25
20
20
0
DATA VALID
DATA VALID
Output High Z
Output High Z
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
v
MAX
20
I/O
v
t
STORE
STK14C88-35
MIN
35
25
20
28
0
HIGH IMPEDANCE
/
t
MAX
RECALL
20
37
(V
CC
STK14C88-45
MIN
45
30
20
0
POWER
Active
Active
l
= 5.0V ± 10%)
CC 2
MAX
20
UNITS NOTES
ns
ns
ns
ns
μs
NOTES
r, s, t
r, s, t
n
u
u
u
e