2
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS1M8-XXX
TRUTH TABLE
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
Vcc+0.5
V
Junction Temperature
T
J
150
C
Supply Voltage
V
CC
-0.5
7.0
V
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
NOTE: OE is internally tied to the GND and not accessible on the WS1M8-XCX.
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Condition
Max Unit
Input capacitance
C
IN
V
IN
= 0V, f = 1.0MHz
20
pF
Output capicitance
C
OUT
V
OUT
= 0V, f = 1.0MHz
20
pF
This parameter is guaranteed by design but not tested.
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
-0.3
+0.8
V
Operating Temp. (Mil.)
T
A
-55
+125
C
CAPACITANCE
(T
A
= +25
C)
DC CHARACTERISTICS
(V
CC
= 5.0V, V
SS
= 0V, T
A
= -55
C to +125
C)
Parameter
Sym
Conditions
Units
Min
Max
Input Leakage Current
I
LI
V
CC
= 5.5, V
IN
= GND to V
CC
10
A
Output Leakage Current
I
LO
1
CS = V
IH
, OE = V
IH
, V
OUT
= GND to V
CC
10
A
Operating Supply Current
I
CC
1
CS = V
IL
, OE = V
IH
, f = 5MHz, Vcc = 5.5
180
mA
Standby Current
I
SB
1
CS = V
IH
, OE = V
IH
, f = 5MHz, Vcc = 5.5
40
mA
Output Low Voltage
V
OL
I
OL
= 8mA
0.4
V
Output High Voltage
V
OH
I
OH
= -4.0mA
2.4
V
Parameter
Symbol
Conditions
Units
Min
Typ
Max
Data Retention Supply Voltage
V
DR
CS
V
CC
-0.2V
2.0
5.5
V
Data Retention Current
I
CCDR1
V
CC
= 3V
3.0
18.0*
mA
LOW POWER DATA RETENTION CHARACTERISTICS (WS1M8L-XXX ONLY)
(T
A
= -55
C to +125
C)
NOTE: DC test conditions: V
IH
= V
CC
-0.3V , V
IL
= 0.3V
1. OE is internally tied to the GND and not accessible on the WS1M8-XCX.
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS1M8-XXX
AC CHARACTERISTICS
(V
CC
= 5.0V, V
SS
= 0V, T
A
= -55
C to +125
C)
Parameter
Symbol
-17
-20
-25
-35
-45
-55
Units
Read Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
t
RC
17
20
25
35
45
55
ns
Address Access Time
t
AA
17
20
25
35
45
55
ns
Output Hold from Address Change
t
OH
0
0
0
0
0
0
ns
Chip Select Access Time
t
ACS
17
20
25
35
45
55
ns
Output Enable to Output Valid
t
OE
2
9
10
12
25
25
25
ns
Chip Select to Output in Low Z
t
CLZ
1
2
2
2
4
4
4
ns
Output Enable to Output in Low Z
t
OLZ
2
0
0
0
0
0
0
ns
Chip Disable to Output in High Z
t
CHZ
1
9
10
12
15
20
20
ns
Output Disable to Output in High Z
t
OHZ
2
9
10
12
15
20
20
ns
1. This parameter is guaranteed by design but not tested.
2. OE is internally tied to the GND and not accessible on the WS1M8-XCX.
AC CHARACTERISTICS
(V
CC
= 5.0V, V
SS
= 0V, T
A
= -55
C to +125
C)
Parameter
Symbol
-17
-20
-25
-35
-45
-55
Units
Write Cycle
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
t
WC
17
20
25
35
45
55
ns
Chip Select to End of Write
t
CW
14
14
15
25
35
50
ns
Address Valid to End of Write
t
AW
14
14
15
25
35
50
ns
Data Valid to End of Write
t
DW
9
10
10
20
25
25
ns
Write Pulse Width
t
WP
14
14
15
25
35
40
ns
Address Setup Time
t
AS
0
0
0
0
0
0
ns
Address Hold Time
t
AH
0
0
0
0
5
5
ns
Output Active from End of Write
t
OW
1
2
3
4
4
5
5
ns
Write Enable to Output in High Z
t
WHZ
1
9
9
10
15
15
25
ns
Data Hold Time
t
DH
0
0
0
0
0
0
ns
1. This parameter is guaranteed by design but not tested.
I
Current Source
D.U.T.
C = 50 pf
eff
I
OL
V
1.5V
(Bipolar Supply)
Z
Current Source
OH
NOTES:
V
Z
is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z
0
= 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.
AC TEST CIRCUIT
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
4
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS1M8-XXX
WS32K32-XHX
TIMING WAVEFORM - READ CYCLE
WRITE CYCLE - CS CONTROLLED
WRITE CYCLE - WE CONTROLLED
ADDRESS
DATA I/O
WRITE CYCLE 1, WE CONTROLLED
t
AW
t
CW
t
AH
t
WP
t
DW
t
WHZ
t
AS
t
OW
t
DH
t
WC
DATA VALID
CS
WE
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
DATA I/O
READ CYCLE 2 (WE = V
IH
)
t
AA
t
ACS
t
OE
t
CLZ
t
OLZ
t
OHZ
t
RC
DATA VALID
HIGH IMPEDANCE
CS
OE
t
CHZ
ADDRESS
DATA I/O
READ CYCLE 1 (CS = OE = V
IL
, WE = V
IH
)
t
AA
t
OH
t
RC
DATA VALID
PREVIOUS DATA VALID
NOTE: OE is internally tied to the GND and not accessible on the WS1M8-XCX.
5
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS1M8-XXX
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
PACKAGE 100:
36 LEAD, CERAMIC SOJ
1.27 (0.050) TYP
23.37 (0.920)
0.25 (0.010)
PIN 1 IDENTIFIER
21.59 (0.850) TYP
11.3 (0.446)
0.2 (0.009)
0.43 (0.017)
0.05 (0.002)
4.76 (0.184) MAX
0.89 (0.035)
Radius TYP
0.20 (0.008)
0.05 (0.002)
9.55 (0.376)
0.25 (0.010)
1.27 (0.050)
0.25 (0.010)
PACKAGE 226:
36 LEAD, CERAMIC FLAT PACK
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
23.37 (0.920)
0.25 (0.010)
32.64 (1.285) TYP
12.95 (0.510)
0.13 (0.005)
3.8 (0.150)
TYP
3.18 (0.125)
MAX
0.127 (0.005)
0.05 (0.002)
PIN 1
IDENTIFIER
1.27 (0.050) TYP
21.59 (0.850) TYP
38.1 (1.50)
0.4 (0.015)
12.7 (0.500)
0.5 (0.020)
5.1 (0.200)
0.25 (0.010)
0.43 (0.017)
0.05 (0.002)
6
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WS1M8-XXX
ORDERING INFORMATION
LEAD FINISH:
Blank = Gold plated leads
A = Solder dip leads
DEVICE GRADE:
M = Military Screened
-55
C to +125
C
I = Industrial
-40
C to +85
C
C = Commercial
0
C to +70
C
PACKAGE:
C = 32 pin Ceramic 0.600" DIP (Package 300)
DJ = 36 Lead Ceramic SOJ (Package 100)
F = 36 Lead Ceramic Flatpack (Package 226)
ACCESS TIME (ns)
IMPROVEMENT MARK:
Blank = Standard Power
L = Low Power Data Retention
ORGANIZATION, two banks of 512K x 8
SRAM
WHITE ELECTRONIC DESIGNS CORP.
W S 1M8 X - XXX X X X
PACKAGE 300:
32 PIN, CERAMIC DIP, SINGLE CAVITY SIDE BRAZED
2.5 (0.100)
TYP
1.27 (0.050)
0.1 (0.005)
0.46 (0.018)
0.05 (0.002)
0.99 (0.039)
0.51 (0.020)
3.2 (0.125) MIN
0.25 (0.010)
0.05 (0.002)
15.25 (0.600)
0.25 (0.010)
42.8 (1.686) MAX
5.13 (0.202) MAX
PIN 1 IDENTIFIER
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
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