STK11C88 Datasheet, PDF (6/9 Pages) List of Unclassifed Manufacturers – 32K x 8 nvSRAM QUANTUM TRAP CMOS NONVOLATILE STATIC RAM

STK11C88
SOFTWARE STORE/RECALL MODE SELECTION
E
W
L
H
A₁₃ - A₀ (hex)
0E38
31C7
03E0
3C1F
303F
0FC0
MODE
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile STORE
I/O
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
NOTES
m, n
0E38
Read SRAM
Output Data
31C7
Read SRAM
Output Data
L
H
03E0
3C1F
Read SRAM
Read SRAM
Output Data
Output Data
m, n
303F
Read SRAM
Output Data
0C63
Nonvolatile RECALL
Output High Z
Note m: The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
Note n: While there are 15 addresses on the STK11C88, only the lower 14 are used to control software modes.
SOFTWARE STORE/RECALL CYCLE^{o, p}
(V_CC = 5.0V ± 10%)^b
NO. SYMBOLS
PARAMETER
STK11C88-20
MIN
MAX
STK11C88-25
MIN
MAX
STK11C88-35
MIN
MAX
STK11C88-45
MIN
MAX
UNITS
26
t_AVAV
STORE/RECALL Initiation Cycle Time 20
25
35
45
ns
27
t_AVELo
Address Set-up Time
0
0
0
0
ns
28
t_ELEHo
Clock Pulse Width
15
20
25
30
ns
29
t_ELAXo
Address Hold Time
15
20
20
20
ns
30
t_RECALLo
RECALL Duration
20
20
20
20
µs
Note o:
Note p:
The software sequence is clocked with E controlled reads.
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 Controlled^p
ADDRESS
26
t_AVAV
ADDRESS #1
26
t_AVAV
ADDRESS #6
27
t_AVEL
28
t_ELEH
E
DQ (DATA
29
t_ELAX
DATA VALID
/ ²³
30
t_STORE t_RECALL
DATA VALID
HIGH IMPEDANCE
July 1999
5-6