STK12C68-W45I(1999) Ver la hoja de datos (PDF) - Unspecified
Número de pieza
componentes Descripción
Fabricante
STK12C68-W45I
(Rev.:1999)
(Rev.:1999)
Unspecified
STK12C68-W45I Datasheet PDF : 12 Pages
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STK12C68
SOFTWARE-CONTROLLED STORE/RECALL CYCLEw
(VCC = 5.0V ± 10%)b, f
SYMBOLS
NO.
Standard Alternate
PARAMETER
STK12C68-20 STK12C68-25 STK12C68-35 STK12C68-45
UNITS NOTES
MIN MAX MIN MAX MIN MAX MIN MAX
33
tAVAV
tRC
STORE/RECALL Initiation Cycle
Time
20
25
35
45
ns
q
34
tAVEL
tAS
35
tELEH
tCW
36
tELAX
37
tRECALL
Address Set-up Time
Clock Pulse Width
Address Hold Time
RECALL Duration
0
0
0
0
ns
v
15
20
25
30
ns
v
15
20
20
20
ns
v
20
20
20
20
µs
Note v: The software sequence is clocked with E controlled READs.
Note w: The six consecutive addresses must be in the order listed in the Hardware Mode Selection Table: (0000, 1555, 0AAA, 1FFF, 10F0, 0F0F) for
a STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive cycles.
SOFTWARE STORE/RECALL CYCLE: E Controlledw
ADDRESS
33
tAVAV
ADDRESS #1
33
tAVAV
ADDRESS #6
34
tAVEL
35
tELEH
E
DQ (DATA OUT)
36
tELAX
DATA VALID
/ 28
37
tSTORE tRECALL
DATA VALID
HIGH IMPEDANCE
July 1999
4-47
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