STK15C88 Simtek, STK15C88 Datasheet - Page 7

• Manufacturer Part Number: STK15C88
• Description: 32Kx8 PowerStore nvSRAM
• Manufacturer: Simtek

Document Control #ML0016 Rev 0.3
SOFTWARE STORE/RECALL MODE SELECTION
Note l:
Note m: While there are 15 addresses on the STK15C88, only the lower 14 are used to control software modes.
SOFTWARE STORE/RECALL CYCLE
Note n: The software sequence is clocked with E controlled reads.
Note o: The six consecutive addresses must be in the order listed in the Software STORE/RECALL Mode Selection Table: (0E38, 31C7, 03E0, 3C1F,
SOFTWARE STORE/RECALL CYCLE: E Controlled
NO.
26
27
28
29
30
ADDRESS
DQ (DATA
E
L
L
February, 2007
SYMBOLS
The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
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.
t
t
t
t
t
AVAV
AVEL
ELEH
ELAX
RECALL
E
n
g, n
n
W
H
H
STORE/RECALL Initiation Cycle Time
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Duration
t
AVEL
27
ADDRESS #1
A
13
t
- A
31C7
3C1F
0FC0
31C7
3C1F
0C63
0E38
03E0
303F
0E38
03E0
303F
AVAV
26
0
(hex)
t
DATA VALID
ELEH
28
t
ELAX
29
PARAMETER
Nonvolatile RECALL
Nonvolatile STORE
n, o
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
MODE
7
ADDRESS #6
t
AVAV
26
o
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
t
I/O
STORE
23
MIN
STK15C88-25
25
20
20
0
HIGH IMPEDANCE
/
t
RECALL
30
MAX
20
(V
CC
MIN
STK15C88-45
45
30
20
= 5.0V
0
NOTES
STK15C88
l, m
l, m
MAX
20
±
10%)
UNITS
ns
ns
ns
ns
μs