STK10C68-M
RECALL CYCLES #1, #2 & #3
(VCC = 5.0V ± 10%)
SYMBOLS
NO.
PARAMETER
MIN
MAX
UNITS
#1
#2
#3
r
29
30
31
32
33
34
35
t
t
t
t
t
RECALL Cycle Time
RECALL Initiation Cycle Time
NE Set-up
25
µs
ns
ns
ns
ns
ns
ns
NLQX
ELQXR
ELNHR
GLQXR
s
t
35
0
NLNH
GLNH
t
t
NLEL
NLGL
t
t
Output Enable Set-up
Write Enable Set-up
Chip Enable Set-up
NE Fall to Outputs Inactive
0
GLNL
GLEL
t
t
t
WHGL
0
WHNL
WHEL
t
t
0
ELNL
ELGL
t
35
NLQZ
Note r: Measured with W and NE both high, and G and E low.
Note s: Once t has been satisfied by NE, G, W and E, theRECALL cycle is completed automatically. Any of NE, G or E may be used to terminate the
NLNH
RECALL initiation cycle.
Note t: If W is low at any point in which both E and NE are low and G is high, then a STORE cycle will be initiated instead of a RECALL.
o
RECALL CYCLE #1: NE CONTROLLED
30
NE
t
NLNH
32
GLNL
t
G
W
E
33
WHNL
t
34
ELNL
29
t
t
NLQX
35
NLQZ
t
HIGH IMPEDANCE
DQ (Data Out)
o
RECALL CYCLE #2: E CONTROLLED
31
NLEL
t
NE
32
t
G
GLEL
t
33
WHEL
W
E
30
ELNHR
t
29
ELQXR
t
HIGH IMPEDANCE
DQ (Data Out)
o,t
RECALL CYCLE #3: G CONTROLLED
31
t
NLGL
NE
G
30
t
GLNH
33
WHGL
t
W
E
34
ELGL
t
29
GLQXR
t
HIGH IMPEDANCE
DQ (Data Out)
4-17
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