ACT–S512K8 High Speed
4 Megabit Monolithic SRAM
Features
Low Power Monolithic CMOS 512K x 8 SRAM
I
Full Military (-55°C to +125°C) Temperature Range
I
Input and Output TTL Compatible Design
I
Fast 17,20,25,35,45 & 55ns Maximum Access Times
I
+5 V Power Supply
I
MIL-PRF-38534 Compliant MCMs Available
I
Industry Standard Pinouts
I
Packaging – Hermetic Ceramic
I
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
The ACT–S512K8 is a high
speed, 4 Megabit CMOS
Monolithic SRAM designed for
full temperature range military,
space, or high reliability mass
memory and fast cache
applications.
The MCM is input and output
TTL compatible. Writing is
executed when the write
enable (WE) and chip enable
(CE) inputs are low and output
enable (OE) is high. Reading is
accomplished when WE is high
and CE and OE are both low.
Access time grades of 17ns,
20ns, 25ns, 35ns, 45ns and
55ns maximum are standard.
The +5 Volt power supply
version is standard and +3.3
Volt lower power model is a
future optional product.
The products are designed
for
operation
over
the
temperature range of -55°C to
+125°C and under the full
military environment. A DESC
Standard Military Drawing
(SMD) number is released.
The
ACT-S512K8
is
manufactured in Aeroflex’s
80,000
square
foot
MIL-PRF-38534
certified
facility in Plainview, N.Y.
36 Lead, .92" x .51" x .13" Flat Package (FP), Aeroflex code# "F3"
G
36 Lead, .92" x .43" x .184" Small Outline J lead (CSOJ),
Aeroflex code# "F4"
(.155 MAX thickness available, contact factory for details)
G
32 Lead, 1.6" x .60" x .20" Dual-in-line (DIP), Aeroflex code# "P4"
G
I
DESC SMD# 5962–95613 Released(F3,F4,P4)
Block Diagram – Flat Package(F3,F16), DIP(P4) & CSOJ(F4)
CE
WE
OE
A
0
– A
18
V
ss
V
cc
512Kx8
8
I/O
0-7
Pin Description
I/O
0-7
A
0–18
WE
CE
OE
V
CC
V
SS
NC
Data I/O
Address Inputs
Write Enable
Chip Enable
Output Enable
Power Supply
Ground
Not Connected
eroflex Circuit Technology - Advanced Multichip Modules © SCD1664 REV C 5/10/00
Absolute Maximum Ratings
Symbol
T
C
T
STG
P
D
V
G
V
CC
T
J
Parameter
Case Operating Temp.
Storage Temperature
Maximum Package Power Dissipation
Maximum Signal Voltage to Ground
Power Supply Voltage
Junction Temperature
MINIMUM
-55
-65
-
-0.5
-0.5
-
MAXIMUM
+125
+150
1.1
V
CC
+ 0.5
+7.0
+150
Units
°C
°C
W
V
V
°C
Recommended Operating Conditions
Symbol
V
CC
V
IH
V
IL
T
A
Parameter
Power Supply Voltage
Input High Voltage
Input Low Voltage
Operating Temp. (Mil)
Minimum
+4.5
+2.2
-0.5
-55
Maximum
+5.5
V
CC
+ 0.3
+0.8
+125
Units
V
V
V
°C
Truth Table
Mode
Standby
Read
Output Disable
Write
CE
H
L
L
L
OE
X
L
H
X
WE
X
H
H
L
Data I/O
High Z
Data OUT
High Z
Data IN
Power
Standby (deselect/power down)
Active
Active (deselected)
Active
Capacitance
(V
IN
= 0V, f = 1MHz, Tc = 25°C, unless otherwise noted, Guaranteed but not tested
)
Symbol
C
IN
C
OUT
Parameter
Input Capacitance (A
0-18
, WE & OE)
Output Capacitance (I/O
0-7
& CE)
Maximum
20
20
Units
pF
pF
DC Characteristics
(V
CC
= 5.0V, V
SS
= 0V, Tc = -55°C to +125°C, unless otherwise specified)
Parameter
Input Leakage Current
Output Leakage Current
Operating Supply Current
Standby Current
Output Low Voltage
Output High Voltage
Aeroflex Circuit Technology
Sym
I
LI
I
LO
I
CC
I
SB
Conditions
V
CC
= Max, V
IN
= 0 to V
CC
CE = V
IH
, OE = V
IH
, V
OUT
= 0 to V
CC
CE = V
IL
, OE = V
IH
, Vcc=5.5V,
f =5MHz CMOS Compatible
CE = Vcc, OE= V
IH
, Vcc=5.5V,
f =5MHz CMOS Compatible
ALL SPEEDS
Units
Min Max
-10
-10
-
-
-
2.4
SCD1664 REV C 5/10/00
+10
+10
170
20
0.4
-
µA
µA
mA
mA
V
V
V
OL
I
OL
= 8 mA, Vcc = 4.5V
V
OH
I
OH
= -4 mA, Vcc = 4.5V
2
Plainview NY (516) 694-6700
AC Characteristics
(V
CC
= 5.0V, V
SS
= 0V, Tc= -55°C to +125°C)
Read Cycle
Parameter
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Hold from Address Change
Output Enable to Output Valid
Chip Select to Output in Low Z (1)
Output Enable to Output in Low Z (1)
Chip Deselect to Output in High Z (1)
Output Disable to Output in High Z (1)
Note 1. Guaranteed by design, but not tested
Sym
–017
–020
–025
–035
–045
–055
Min Max Min Max Min Max Min Max Min Max Min Max
17
-
-
0
-
2
0
-
-
-
17
17
-
9
-
-
9
9
20
-
-
0
-
2
0
-
-
-
20
20
-
10
-
-
10
10
25
-
-
0
-
2
0
-
-
-
25
25
-
12
-
-
12
12
35
-
-
0
-
4
0
-
-
-
35
35
-
25
-
-
15
15
4
0
-
-
45
-
-
0
-
45
45
-
25
-
-
20
20
4
0
-
-
55
-
-
0
-
55
55
-
25
-
-
20
20
Units
t
RC
t
AA
t
ACS
t
OH
t
OE
t
CLZ
t
OLZ
t
CHZ
t
OHZ
ns
ns
ns
ns
ns
ns
ns
ns
ns
Write Cycle
Parameter
Write Cycle Time
Chip Select to End of Write
Address Valid to End of Write
Data Valid to End of Write
Write Pulse Width
Address Setup Time
Address Hold Time
Output Active from End of Write (1)
Write to Output in High Z (1)
Data Hold from Write Time
Note 1. Guaranteed by design, but not tested
Sym
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
AH
t
OW
t
WHZ
t
DH
–017
–020
–025
–035
–045
–055
Min Max Min Max Min Max Min Max Min Max Min Max
17
15
15
12
14
2
0
0
-
0
-
-
-
-
-
-
-
-
9
-
20
15
15
12
14
2
0
0
-
0
-
-
-
-
-
-
-
-
9
-
25
20
20
15
15
2
0
0
-
0
10
-
-
-
-
-
-
-
-
35
25
25
20
25
2
0
0
-
0
15
-
-
-
-
-
-
-
-
45
35
35
25
35
2
5
5
-
0
-
-
-
-
-
-
-
-
20
-
55
50
50
25
40
2
5
5
-
0
-
-
-
-
-
-
-
-
25
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Data Retention Electrical Characteristics (Special Order Only)
(Tc = -55°C to +125°C)
Test Conditions
CE
≥
V
CC
– 0.2V
V
CC
= 3V
Parameter
V
CC
for Data Retention
Sym
V
DR
ALL SPEEDS
Min
Typ
Max
2
-
-
0.5
5.5
7.0
Units
V
mA
Data Retention Current (1) I
CCDR1
Available in Low Power version. Call For Information.
Truth Table
Mode
Standby
Read
Output Disable
Write
Aeroflex Circuit Technology
CE
H
L
L
L
OE
X
L
H
X
WE
X
H
H
L
Data I/O
High Z
Data Out
High Z
Data In
3
Power
Standby (deselect/power down)
Active
Active (deselected)
Active
SCD1664 REV C 5/10/00
Plainview NY (516) 694-6700
Timing Diagrams
Read Cycle Timing Diagrams
Read Cycle 1 (CE = OE = V
IL
, WE = V
IH
)
t
RC
A
0-18
t
AA
t
OH
D
I/O
Previous Data Valid
Data Valid
CE
t
AS
WE
S
EE
N
OTE
Write Cycle Timing Diagrams
Write Cycle 1 (WE Controlled, OE = V
IL
)
t
WC
A
0-16
t
AW
t
CW
t
AH
t
WP
S
EE
N
OTE
t
OW
t
WHZ
t
DW
Data Valid
t
DH
D
I/O
Read Cycle 2 (WE = V
IH
)
t
RC
A
0-18
t
AA
CE
t
ACS
t
CLZ
S
EE
N
OTE
Write Cycle 2 (CE Controlled, OE = V
IH
)
t
WC
A
0-18
t
AW
t
CHZ
S
EE
N
OTE
t
AH
t
CW
t
AS
CE
OE
t
WP
t
OE
t
OLZ
S
EE
N
OTE
t
OHZ
S
EE
N
OTE
WE
t
DW
D
I/O
Data Valid
t
DH
D
I/O
High Z
Data Valid
UNDEFINED
DON’T CARE
Note: Guaranteed by design, but not tested.
AC Test Circuit
Current Source
I
OL
Parameter
To Device Under Test
C
L
=
50 pF
I
OH
Current Source
V
Z
~ 1.5 V (Bipolar Supply)
Typical
0 – 3.0
5
1.5
Units
V
ns
V
Input Pulse Level
Input Rise and Fall
Input and Output Timing Reference Level
Notes:
1) V
Z
is programmable from -2V to +7V. 2) I
OL
and I
OH
programmable from 0 to 16 mA. 3) Tester Impedance
Z
O
= 75
Ω. 4)
V
Z
is typically the midpoint of V
OH
and V
OL
. 5) I
OL
and I
OH
are adjusted to simulate a typical resistance
load circuit. 6) ATE Tester includes jig capacitance.
Aeroflex Circuit Technology
4
SCD1664 REV C 5/10/00
Plainview NY (516) 694-6700
Pin Numbers & Functions
36 Pins — Flat Package
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Function
A
0
A
1
A
2
A
3
A
4
CE
I/O
0
I/O
1
V
CC
V
SS
I/O
2
I/O
3
WE
A
5
A
6
A
7
A
8
A
9
Pin #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Function
NC
A
10
A
11
A
12
A
13
A
14
I/O
4
I/O
5
V
CC
V
SS
I/O
6
I/O
7
OE
A
15
A
16
A
17
A
18
NC
Package Outline "F3" — Small Flat Package, 36 Leads
.930
MAX
Pin 36
Pin 19
.035±.003
.125 MAX
.515
MAX
Pin 1
Pin 18
.350
MIN
.005 ±.002
.017
±.002
.850 REF
(17 spaces at .050)
2 sides
All dimensions in inches
5
Aeroflex Circuit Technology
SCD1664 REV C 5/10/00
Plainview NY (516) 694-6700
京公网安备 11010802033920号
EEWORLD
