White Electronic Designs
1Mx32 SRAM MODULE
FEATURES
■
Access Times of 17, 20, 25ns
■
Packaging
84 lead, 28mm CQFP, (Package 511)
66 pin PGA Type, 1.385" sq., Hermetic Ce-
ramic HIP
(Package 402)*
■
Organized as two banks of 512Kx32, User
Configurable as 2Mx16 or 4Mx8
* Package to be developed.
WS1M32-XXX
■
Commercial, Industrial and Military Temperature
Ranges
■
TTL Compatible Inputs and Outputs
■
5 Volt Power Supply
■
Low Power CMOS
■
Built-in Decoupling Caps and Multiple Ground
Pins for Low Noise Operation
■
Weight
WS1M32-XH2X* - 13 grams (typical)
WS1M32-XG3X - 20 grams (typical)
PIN CONFIGURATION FOR WS1M32-XH2X*
TOP VIEW
1
I/O
8
I/O
9
I/O
10
A
13
A
14
A
15
A
16
A
17
I/O
0
I/O
1
I/O
2
11
22
12
WE
2
OE
2
GND
I/O
11
A
10
A
11
A
12
V
CC
CS
1
NC
I/O
3
33
23
I/O
15
I/O
14
I/O
13
I/O
12
OE
1
A
18
WE
1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
24
I/O
25
I/O
26
A
6
A
7
CS
2
A
8
A
9
I/O
16
I/O
17
I/O
18
44
34
V
CC
OE
4
WE
4
I/O
27
A
3
A
4
A
5
WE
3
OE
3
GND
I/O
19
55
45
I/O
31
I/O
30
I/O
29
I/O
28
A
0
A
1
A
2
I/O
23
OE
1
W E
1
PIN DESCRIPTION
56
I/O
0
-
31
A
0-18
WE
1-4
CS
1-2
OE
1-4
V
C
C
GND
N
C
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
BLOCK DIAGRAM
OE
2
W E
2
OE
3
W E
3
OE
4
W E
4
I/O
22
I/O
21
I/O
20
66
2M
8
512K x
x 8
512K x 8
CS
1
A
0-18
2M
8
512K x
x 8
512K x 8
2M
8
512K x
x 8
2M
512K
x 8
512K x 8
512K x 8
8
8
8
8
CS
2
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
NOTE: CS
1
& CS
2
are used as bank select
July 2002 Rev. 4
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
PIN CONFIGURATION FOR WS1M32-XG3X
TOP VIEW
GND
I/O
31
I/O
30
I/O
29
I/O
28
I/O
27
I/O
26
I/O
25
I/O
24
NC
NC
NC
I/O
23
I/O
22
I/O
21
I/O
20
I/O
19
I/O
18
I/O
17
I/O
16
V
CC
WS1M32-XXX
PIN DESCRIPTION
I/O
0-31
A
0-18
WE
1-4
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
GND
NC
NC
NC
NC
NC
NC
NC
NC
WE
4
WE
3
WE
2
WE
1
NC
NC
A
18
A
17
A
16
A
15
A
14
V
CC
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enables
Power Supply
Ground
Not Connected
11
10
9
8 7 6 5 4 3 2 1 84 83 82 81 80 79 78 77 76 75
V
CC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
OE
1
OE
2
OE
3
OE
4
NC
A
7
A
8
A
9
A
10
A
11
A
12
A
13
GND
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34 35 36
37
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
8
8
CS
1-2
OE
1-4
V
CC
GND
N
C
BLOCK DIAGRAM
OE
1
W E
1
OE
2
W E
2
OE
3
W E
3
OE
4
W E
4
CS
1
A
0-18
2M
8
512K x
x 8
512K x 8
2M
8
512K x
x 8
512K x 8
2M
8
512K x
x 8
2M
512K
x 8
512K x 8
512K x 8
8
8
V
CC
I/O
0
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
CS
1
NC
CS
2
I/O
8
I/O
9
I/O
10
I/O
11
I/O
12
I/O
13
I/O
14
I/O
15
GND
CS
2
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
NOTE: CS
1
& CS
2
are used as bank select
1.146"
The WEDC 84 lead G3 CQFP fills
the same fit and function as the
JEDEC 84 lead CQFJ or 84
PLCC. But the G3 has the TCE
and lead inspection advantage of
the CQFP form.
White Electronic Designs Corporation Phoenix AZ (602) 437-1520
2
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating Temperature
Storage Temperature
Signal Voltage Relative to GND
Junction Temperature
Supply Voltage
Symbol
T
A
T
STG
V
G
T
J
V
CC
-0.5
Min
-55
-65
-0.5
Max
+125
+150
Vcc + 0.5
150
7.0
Unit
°C
°C
V
°C
V
Parameter
OE
1-4
capacitance
WE
1-4
capacitance
CS
1-2
capacitance
Data I/O capacitance
Address input capacitance
WS1M32-XXX
CAPACITANCE
(T
A
=+25°C)
Symbol
C
OE
C
WE
C
CS
C
I/O
C
AD
Conditions
V
IN
= 0 V, f = 1.0 MHz
V
IN
= 0 V, f = 1.0 MHz
V
IN
= 0 V, f = 1.0 MHz
V
I/O
= 0 V, f = 1.0 MHz
V
IN
= 0 V, f = 1.0 MHz
Max Unit
30
30
30
30
75
pF
pF
pF
pF
pF
RECOMMENDED OPERATING CONDITIONS
Parameter
Supply Voltage
Input High Voltage
Input Low Voltage
Operating Temp (Mil)
Operating Temp (Ind.)
Symbol
V
CC
V
IH
V
IL
T
A
T
A
Min
4.5
2.2
-0.5
-55
-40
Max
5.5
V
CC
+ 0.3
+0.8
+125
+85
Unit
V
V
V
°C
°C
This parameter is guaranteed by design but not tested.
TRUTH TABLE
CS
1
H
L
L
L
H
H
H
L
CS
2
H
H
H
H
L
L
L
L
OE
X
L
H
X
L
H
X
X
WE
X
H
H
L
H
H
L
X
Mode
Data I/O
Power
Standby
High Z
Standby
Read
Data Out
Active
Out Disable
High Z
Active
Write
Data In
Active
Read
Data Out
Active
Out Disable
High Z
Active
Write
Data In
Active
Invalid State Invalid State Invalid State
DC CHARACTERISTICS
(V
CC
= 5.0V, GND = 0V, T
A
= -55°C to +125°C)
Parameter
Input Leakage Current
Output Leakage Current
Operating Supply Current x 32 Mode
Standby Current
Output Low Voltage
Output High Voltage
Symbol
I
LI
I
LO
I
CC x 32
I
SB
V
OL
V
OH
Conditions
V
CC
= 5.5, V
IN
= G
ND
to V
CC
CS = V
IH
, OE = V
IH
, V
OUT
= GND to V
CC
CS = V
IL
, OE = V
IH
, f = 5MHz, Vcc = 5.5
CS = V
IH
, OE = V
IH
, f = 5MHz, Vcc = 5.5
I
OL
= 8mA, Vcc = 4.5
I
OH
= -4.0mA, Vcc = 4.5
2.4
Min
Max
10
10
720
120
0.4
Units
µA
µA
mA
mA
V
V
NOTE: DC test conditions: V
IH
= V
CC
-0.3V, V
IL
= 0.3V
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
AC CHARACTERISTICS
(V
CC
=5.0V,GND=0V,T
A
=-55°Cto+125°C)
Parameter
Read Cycle
Read Cycle Time
Address Access Time
Output Hold from Address Change
Chip Select Access Time
Output Enable to Output Valid
Chip Select to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Output Disable to Output in High Z
t
RC
t
AA
t
OH
t
ACS
t
OE
t
CLZ
1
t
OLZ
1
t
CHZ
1
t
OHZ
1
WS1M32-XXX
Symbol
Min
17
-17
Max
17
0
17
10
2
0
12
12
2
0
0
Min
20
-20
Max
20
0
20
10
2
0
12
12
Min
25
-25
Max
Units
ns
25
25
12
ns
ns
ns
ns
ns
ns
12
12
ns
ns
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
(V
CC
=5.0V,GND=0V,T
A
=-55°Cto+125°C)
Parameter
Write Cycle
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
Write Enable to Output in High Z
Data Hold Time
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
AH
t
OW
1
t
WHZ
1
t
DH
0
Symbol
Min
17
15
15
11
15
2
0
2
9
0
-17
Max
Min
20
15
15
12
15
2
0
3
11
0
-20
Max
Min
25
17
17
13
17
2
0
4
13
-25
Max
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
1. This parameter is guaranteed by design but not tested.
AC TEST CIRCUIT
I
OL
Current Source
AC TEST CONDITIONS
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Typ
V
IL
= 0, V
IH
= 3.0
5
1.5
1.5
Unit
V
ns
V
V
D.U.T.
C
eff
= 50 pf
V
Z
1.5V
Output Timing Reference Level
(Bipolar Supply)
I
OH
Current Source
NOTES:
V
Z
is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z0 = 75
W
.
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.
White Electronic Designs Corporation Phoenix AZ (602) 437-1520
4
White Electronic Designs
TIMING WAVEFORM - READ CYCLE
t
RC
ADDRESS
WS1M32-XXX
t
AA
CS
t
RC
ADDRESS
t
ACS
t
CLZ
OE
t
CHZ
t
AA
t
OH
DATA I/O
PREVIOUS DATA VALID
DATA VALID
t
OE
t
OLZ
DATA I/O
HIGH IMPEDANCE
t
OHZ
DATA VALID
READ CYCLE 1 (CS = OE = V
IL
, WE = V
IH
)
READ CYCLE 2 (WE = V
IH
)
WRITE CYCLE - WE CONTROLLED
t
WC
ADDRESS
t
AW
t
CW
CS
t
AH
t
AS
WE
t
WP
t
OW
t
WHZ
t
DW
t
DH
DATA I/O
DATA VALID
WRITE CYCLE 1, WE CONTROLLED
WRITE CYCLE - CS CONTROLLED
t
WC
ADDRESS
WS32K32-XHX
t
CW
t
AH
t
AS
CS
t
AW
t
WP
WE
t
DW
DATA I/O
DATA VALID
t
DH
WRITE CYCLE 2, CS CONTROLLED
5
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
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