STK10C68 Simtek Corporation, STK10C68 Datasheet - Page 6

• Manufacturer Part Number: STK10C68
• Description: Density = 64K ;; Format = 8K X 8 ;; # of Pins = 28 ;; Access Time (ns MAX) = 25,35,45 ;; Initiated Store = Hardware ;; Production = Now ;; Volt = 5 ;; Temps Commercial Industrial Military = C/i/m
• Manufacturer: Simtek Corporation

September 2003
STK10C68
MODE SELECTION
Note l:
STORE CYCLES #1 & #2
Note m: Measured with W and NE both returned high, and G returned low. STORE cycles are inhibited below 4.0V.
Note n: Once t
Note o: If E is low for any period of time in which W is high while G and NE are low, then a RECALL cycle may be initiated.
STORE CYCLE #1: W Controlled
STORE CYCLE #2: E Controlled
DQ (DATA OUT)
NO.
DQ (DATA OUT)
26
27
28
29
30
31
32
E
H
L
L
L
L
L
L
An automatic RECALL takes place at power up, starting when V
the STORE initiation cycle.
t
t
t
t
t
WLQX
WLNH
GHNL
NLWL
ELWL
NE
NE
#1
W
G
E
W
G
E
m
n
WC
has been satisfied by NE, G, W and E, the STORE cycle is completed automatically. Any of NE, G, W or E may be used to terminate
SYMBOLS
W
X
H
H
H
t
t
t
t
t
L
L
L
ELQX
ELNH
GHEL
NLEL
WLEL
#2
HIGH IMPEDANCE
t
GHNL
28
t
t
STORE
WC
t
HIGH IMPEDANCE
ELWL
t
G
Alt.
X
X
H
H
L
L
L
31
GHEL
29
t
WLEL
32
t
NLEL
30
t
NLWL
30
STORE Cycle Time
STORE Initiation Cycle Time
Output Disable Set-up to NE Fall
Output Disable Set-up to E Fall
NE Set-up
Chip Enable Set-up
Write Enable Set-up
o
o
NE
X
H
H
X
L
L
L
CC
6
exceeds 4.25V and taking t
PARAMETER
t
Document Control # ML0006 rev 0.1
t
ELNH
WLNH
Nonvolatile RECALL
27
Nonvolatile STORE
27
No Operation
Not Selected
Read SRAM
Write SRAM
MODE
t
t
ELQX
WLQX
26
26
RESTORE
l
.
(V
CC
MIN
20
0
0
0
0
0
= 5.0V
MAX
POWER
Standby
10
Active
Active
Active
Active
I
CC 2
10%)
UNITS
ms
ns
ns
ns
ns
ns
ns