1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
512Kx8 SRAM MODULE, SMD 5962-92078
Access Times 20, 25, 35, 45ns
Standard Microcircuit Drawing, 5962-92078
MIL-STD-883 Compliant Devices Available
Rad
Tolerant
Devices
Available
JEDEC Standard 32 pin, Hermetic Ceramic DIP
(Package 300)
Commercial, Industrial and Military Temperature
Range
(-55C
to
+125C)
FIGURE 1 PIN CONFIGURATION
BLOCK DIAGRAM
128K x 8
I/O0-7
128K x 8
128K x 8
128K x 8
A0-16
OE#
Decoder
WE#
CS#
A17
A18
PIN DESCRIPTION
A0-18
Address Inputs
I/O 0-7
Data Input/Output
CS#
Chip Select
OE#
Output Enable
WE#
Write Enable
V
CC
+5.0V Power
GND
Ground
FEATURES
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
VCC
A15
A17
WE#
A13
A8
A9
A11
OE#
A10
CS#
I/O7
I/O6
I/O5
I/O4
I/O3
TOP VIEW
Organized as 512K x 8
5V
Power
Supply
Low
Power
CMOS
TTL Compatible Inputs and Outputs
Battery
Back-Up
Operation
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
FIGURE 2 AC TEST CIRCUIT
Current Source
Current Source
I
OL
I
OH
D.U.T.
C
EFF
= 50 pf
V
Z
1.5V
(Bipolar Supply)
TRUTH TABLE
CS#
OE#
WE#
Mode
Data I/O
Power
H
X
X
Standby
High Z
Standby
L
L
H
Read
Data Out
Active
L
X
L
Write
Data In
Active
L
H
H
Out Disable
High Z
Active
CAPACITANCE
(T
A
= +25C)
Parameter
Symbol
Condition
Max
Unit
Input capacitance
C
IN
V
IN
= 0V, f = 1.0MH
Z
45
pF
Output capicitance
C
OUT
V
OUT
= 0V, f = 1.0MH
Z
45
pF
This parameter is guaranteed by design but not tested.
AC TEST CONDITIONS
Parameter
Typ
Unit
Input Pulse Levels
V
IL
= 0, V
IH
= 3.0
V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
Output Timing Reference Level
1.5
V
NOTES:
V
Z
is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z0 = 75
V
Z
is typically the midpoint of V
OH
and V
OL
.
I
OL
& I
OH
are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Operating Temperature
T
A
-55 +125
C
Storage Temperature
T
STG
-65
+150
C
Signal Voltage Relative to GND
V
G
-0.5
V
CC
+0.5
V
Junction Temperature
T
J
150
C
Supply Voltage
V
CC
-0.5
7.0
V
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min
Max
Unit
Supply Voltage
V
CC
4.5
5.5
V
Input High Voltage
V
IH
2.2
V
CC
+ 0.3
V
Input Low Voltage
V
IL
-0.5
+0.8
V
Operating Temp. (Mil.)
T
A
-55
+125
C
DC CHARACTERISTICS
(V
CC
= 5.0V, GND = 0V, -55C T
A
125C)
Parameter
Symbol Conditions
-20
-25
-35
-45
Units
Min
Max
Min
Max
Min
Max
Min
Max
Input Leakage Current
I
LI
V
CC
= 5.5, V
IN
= GND to V
CC
10
10
10
10
A
Output Leakage Current
I
LO
CS# = V
IH
, OE# = V
IH
, V
OUT
= GND to V
CC
10
10
10
10
A
Operating Supply Current
I
CC
CS# = V
IL
, OE# = V
IH
, f = 5MH
Z
, V
CC
= 5.5
210
210
210
210
mA
Standby Current
I
SB
CS# = V
IH
, OE# = V
IH
, f = 5MH
Z
80
60
60
55
mA
Output Low Voltage
V
OL
I
OL
= 8mA, V
CC
= 4.5
0.4
0.4
0.4
0.4
V
Output High Voltage
V
OH
I
OH
= -4.0mA, V
CC
= 4.5
2.4
2.4
2.4
2.4
V
NOTE: DC test conditions: V
IH
= V
CC
-0.3V, V
IL
= 0.3V
DATA RETENTION CHARACTERISTICS FOR LOW POWER "L" VERSION
(-55C TA 125C)
Parameter
Symbol Conditions
-20
-25
-35
-45
Units
Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Data Retention Supply Voltage
V
DR
CS# V
CC
-0.2V
2.0
5.5
2.0
5.5
2.0
5.5
2.0
5.5
V
Data Retention Current
I
CCDR
1
V
CC
= 3V
8.0 12.8
8.0 12.8
8.0 12.8
8.0 12.8
mA
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
AC CHARACTERISTICS
(V
CC
= 5.0V, GND = 0V, -55C T
A
125C)
Parameter
Read Cycle
Symbol
-20
-25
-35
-45
Units
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
t
RC
20
25
35
45
ns
Address Access Time
t
AA
20
25
35
45
ns
Output Hold from Address Change
t
OH
3
3
3
3
ns
Chip Select Access Time
t
ACS
20
25
35
45
ns
Output Enable to Output Valid
t
OE
10
10
25
35
ns
Chip Select to Output in Low Z
t
CLZ
1
3
3
3
3
ns
Output Enable to Output in Low Z
t
OLZ
1
0
0
0
0
ns
Chip Disable to Output in High Z
t
CHZ
1
15
17
20
30
ns
Output Disable to Output in High Z
t
OHZ
1
12
15
20
25
ns
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
(V
CC
= 5.0V, GND =0V, -55C T
A
125C)
Parameter
Write Cycle
Symbol
-20
-25
-35
-45
Units
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
t
WC
20
25
35
45
ns
Chip Select to End of Write
t
CW
16
20
25
30
ns
Address Valid to End of Write
t
AW
16
20
25
30
ns
Data Valid to End of Write
t
DW
15
15
20
25
ns
Write Pulse Width
t
WP
16
20
25
30
ns
Address Setup Time
t
AS
2
2
2
2
ns
Address Hold Time
t
AH
2
2
2
2
ns
Output Active from End of Write
t
OW
1
4
5
5
5
ns
Write Enable to Output in High Z
t
WHZ
1
10
0
15
0
20
0
25
ns
Data Hold Time
t
DH
1
1
1
1
ns
1. This parameter is guaranteed by design but not tested.
4
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
FIGURE 3 TIMING WAVEFORM - READ CYCLE
FIGURE 5 WRITE CYCLE - CS# CONTROLLED
FIGURE 4 WRITE CYCLE - WE# CONTROLLED
ADDRESS
t
WC
t
AW
t
CW
t
AH
t
AS
t
WP
t
WHZ
t
DW
t
OW
t
DH
DATA VALID
CS#
DATA I/O
WE#
WRITE CYCLE 1, WE# CONTROLLED
ADDRESS
DATA I/O
WRITE CYCLE 2, CS# CONTROLLED
t
AW
t
AS
t
CW
t
AH
t
WP
t
DH
t
DW
t
WC
CS#
WE#
DATA VALID
ADDRESS
t
RC
CS#
OE#
DATA I/O
t
AA
t
ACS
t
CHZ
t
CLZ
t
OE
t
OLZ
t
OHZ
HIGH IMPEDANCE
DATA VALID
READ CYCLE 2 (WE# = V
IH
)
ADDRESS
DATA I/O
PREVIOUS DATA VALID
DATA VALID
READ CYCLE 1 (CS# = OE# = V
IL
, WE# = V
IH
)
t
OH
t
AA
t
RC
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
PACKAGE 300: 32 PIN, CERAMIC DIP, SINGLE CAVITY SIDE BRAZED
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
2.5 (0.100)
TYP
1.27 (0.050)
0.1 (0.005)
0.46 (0.018)
0.05 (0.002)
0.84 (0.033)
0.4 (0.014)
3.2 (0.125) MIN
0.25 (0.010)
0.05 (0.002)
15.25 (0.600)
0.25 (0.010)
42.4 (1.670) 0.4 (0.016)
4.34 (0.171) 0.79 (0.031)
PIN 1 IDENTIFIER
15.04 (0.592)
0.25 (0.012)
6
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WS512K8-XCX
May 2004
Rev. 4
LEAD FINISH:
Blank = Gold plated leads
A = Solder dip leads
DEVICE GRADE:
Q = MIL-STD-883 Compliant
M = Military Screened
-55C to +125C
I = Industrial
-40C to +85C
C = Commercial
0C to +70C
PACKAGE:
C = Ceramic 0.600" DIP (Package 300)
ACCESS TIME (ns)
OPTIONS
Blank = Standard Power
L = Low Power
ORGANIZATION, 512K x 8
SRAM
WHITE EDC
ORDERING INFORMATION
DEVICE TYPE
SPEED
PACKAGE
SMD NO.
512K x 8 SRAM
45ns
32 pin DIP
5962-92078 06HTX
512K x 8 SRAM
35ns
32 pin DIP
5962-92078 07HTX
512K x 8 SRAM
25ns
32 pin DIP
5962-92078 08HTX
512K x 8 SRAM
20ns
32 pin DIP
5962-92078 09HTX
W S 512K 8 X - XXX C X X
PDF 
ZIP