Austin Semiconductor, Inc.
Austin Semiconductor, Inc.
AS8S128K32
AS8S128K32
AS8S128K32
NOTES
NOTES
NOTES
4
4
4
4
4
4
4
4
4
4
44
SRAM
SRAM
SRAM
CAPACITANCE TABLE
(V = 0V, f f 1 MHz, T T= 25
o
C)
CAPACITANCE TABLE
(V
IN IN
= 0V, = = 1 MHz,
A A
= 25
o
C)
CAPACITANCE TABLE
PARAMETER
f = 1 MHz, T
A
= 25
o
C)
UNITS
(V
IN
= 0V,
SYMBOL
MAX
SYMBOL
PARAMETER
MAX
UNITS
C
ADD
C
ADD
C
ADD
C
OE
C
OEOE
C
SYMBOL
C
C
C
C
WE,CE
CE
C
WE,
WE,
C
CE
C
C
IO
C
IO IO
A0A0A18 Capacitance
- - A18 Capacitance
A0 - A18 Capacitance
OE\ Capacitance
OE\ Capacitance
OE\ Capacitance
PARAMETER
4040
40
4040
40
MAX
UNITS
pFpF
pF
WE\ and CE\
WE\ and CE\
Capacitance
WE\ and CE\ Capacitance
I/O
I/O
0- I/O 31 Capacitance
I/O 0- 0- I/O 31 Capacitance
I/O 31 Capacitance
20
2020
20
2020
pFpF
pF
pF
pFpF
pF
pFpF
TRUTH TABLE
TRUTH TABLE
MODE
MODE
Read
Read
Write
Write
Standby
Standby
Not Selected
Not Selected
OE\
OE\
L L
XX
XX
HH
CE\
CE\
L L
L L
HH
L L
WE\
WE\
HH
L L
XX
HH
I/O
I/O
QQ
DD
HIGH
HIGH Z Z
HIGH
HIGH Z Z
POWER
POWER
ACTIVE
ACTIVE
ACTIVE
ACTIVE
STANDBY
STANDBY
ACTIVE
ACTIVE
AC TEST CONDITIONS
AC TEST CONDITIONS
AC TEST CONDITIONS
TEST SPECIFICATIONS
TEST SPECIFICATIONS
Input
SPECIFICATIONS
TEST
pulse levels........................................VSS 3V
Input pulse levels........................................VSS to to 3V
I
I
OLOL
Current Source
Current Source
Device
Device
Under
Under
Test
Test
-
+
+
-
+
Input rise and fall times..........................................5ns
Input pulse levels........................................VSS to 3V
Input rise and fall times..........................................5ns
Input timing reference levels.................................1.5V
Input rise and fall times..........................................5ns
Input timing reference levels.................................1.5V
Output reference levels........................................1.5V
Input
reference levels........................................1.5V
Output
timing reference levels.................................1.5V
Output load.............................................See Figures
Output reference levels........................................1.5V
Output load.............................................See Figures 1 1
Output load.............................................See Figures 1
VzVz = 1.5V
= 1.5V
(Bipolar
(Bipolar
Supply)
Supply)
+
Ceff 50pf
Ceff = = 50pf
Current Source
Current Source
I
I
OHOH
NOTES:
NOTES:
NOTES:
VzVzprogramable from -2V to + 7V.
is is programable from -2V to + 7V.
Figure
Figure 1 1
Figure 1
and
programmable
-2V
0 0 to
Vz is
I
OH
I
OH
programmable from
+ 7V.
mA.
I
OL
Iand
programable from
from
to
to 1616 mA.
OL
I
OL
and
typically the midpoint of Vand V
mA.
VzVz typically the midpoint
from
OH OH
and
OL
.
OL
.
is is
I
OH
programmable
of V
0 to 16
V
Vz
and I
OH
are adjusted to
of V
OH
typical
.
resistive load
I
OL
I
OL
is typically the midpoint
simulate
and V
OL
resistive load
and I
OH
are adjusted to simulate a a typical
circuit.
I
OL
and
circuit.
I
OH
are adjusted to simulate a typical resistive load
circuit.
AS8S128K32
AS8S128K32
Rev. 06/05
Rev. 4.1 4.1 06/05
AS8S128K32
Rev. 4.5 08/13
33
3
Austin Semiconductor, reserves the the to change products or specifications without notice.
Austin Semiconductor, Inc. Inc. reserves rightright to change products or specifications without notice.
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