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 Ceramic
HIP (Package 402)*
Organized as two banks of 512Kx32, User
Configurable as 2Mx16 or 4Mx8
Commercial, Industrial and Military Temperature
Ranges
WS1M32-XXX
TTL Compatible Inputs and Outputs
5V 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)
* Package to be developed.
This product is subject to change without notice.
PIN CONFIGURATION FOR WS1M32-XH2X*
TOP VIEW
1
I/O8
I/O9
I/O10
A13
A14
A15
A16
A17
I/O0
I/O1
I/O2
11
22
12
WE#2
OE#2
GND
I/O11
A10
A11
A12
VCC
CS#1
NC
I/O3
33
23
I/O15
I/O14
I/O13
I/O12
OE#1
A18
WE#1
I/O7
I/O6
I/O5
I/O4
I/O24
I/O25
I/O26
A6
A7
CS#2
A8
A9
I/O16
I/O17
I/O18
44
34
VCC
OE#4
WE#4
I/O27
A3
A4
A5
WE#3
OE#3
GND
I/O19
55
45
I/O31
I/O30
I/O29
I/O28
A0
A1
A2
I/O23
I/O22
I/O21
I/O20
66
CS#2
I/O0-7
I/O8-15
I/O16-23
I/O24-31
OE#
CS#1
A0-18
PIN DESCRIPTION
56
I/O
0-31
A
0-18
WE#
1-4
CS#
1-2
OE#
1-4
V
CC
GND
NC
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
BLOCK DIAGRAM
WE#1
WE#2
WE#3
WE#4
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
x
8
512K
x
8
512K x 8
512K x 8
8
8
8
8
Note: CS#
1
& CS#
2
are used as bank select
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 4
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/O0-31
A0-18
WE#1-4
CS#1-2
OE#1-4
VCC
GND
NC
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
A0
A1
A2
A3
A4
A5
A6
OE#1
OE#2
OE#3
OE#4
NC
A7
A8
A9
A10
A11
A12
A13
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
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
BLOCK DIAGRAM
OE#1 WE#1
OE#2 WE#2
OE#3 WE#3
OE#4 WE#4
CS#1
A0-18
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
x
8
512K
x
8
512K x 8
512K x 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
8
CS#2
I/O0-7
8
8
8
I/O8-15
I/O16-23
I/O24-31
Note: CS#
1
& CS#
2
are used as bank select
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.
1.146"
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 4
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
V
CC
+ 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
COE
CWE
CCS
CI/O
CAD
WS1M32-XXX
CAPACITANCE
(T
A
= +25°C)
Symbol 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
VI/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
This parameter is guaranteed by design but not tested.
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
H
L
L
L
H
H
H
L
H
H
H
H
L
L
L
L
X
L
H
X
L
H
X
X
TRUTH TABLE
CS#1 CS#2 OE# WE#
X
H
H
L
H
H
L
X
Mode
Standby
Read
Out Disable
Write
Read
Out Disable
Write
Data I/O
High Z
Data Out
High Z
Data In
Data Out
High Z
Data In
Power
Standby
Active
Active
Active
Active
Active
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
= GND to V
CC
CS# = V
IH
, OE# = V
IH
, V
OUT
= GND to V
CC
CS# = V
IL
, OE# = V
IH
, f = 5MHz, V
CC
= 5.5
CS# = V
IH
, OE# = V
IH
, f = 5MHz, V
CC
= 5.5
I
OL
= 8mA, V
CC
= 4.5
I
OH
= -4.0mA, V
CC
= 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
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
3
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 4
White Electronic Designs
AC CHARACTERISTICS
(V
CC
= 5.0V, GND = 0V, T
A
= -55°C to +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
1. This parameter is guaranteed by design but not tested.
Symbol
t
RC
t
AA
t
OH
t
ACS
t
OE
t
CLZ
1
t
OLZ
1
t
CHZ
1
1
WS1M32-XXX
-17
Min
17
17
0
17
10
2
0
12
12
2
0
0
Max
Min
20
-20
Max
20
0
20
10
2
0
12
12
Min
25
-25
Max
25
25
12
Units
ns
ns
ns
ns
ns
ns
ns
12
12
ns
ns
t
OHZ
AC CHARACTERISTICS
(V
CC
= 5.0V, GND = 0V, T
A
= -55°C to +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
1.This parameter is guaranteed by design but not tested.
Symbol
t
WC
t
CW
t
AW
t
DW
t
WP
t
AS
t
AH
t
OW
1
t
WHZ
t
DH
1
-17
Min
17
15
15
11
15
2
0
2
9
0
0
Max
Min
20
15
15
12
15
2
0
3
-20
Max
Min
25
17
17
13
17
2
0
4
11
0
-25
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
13
ns
ns
AC TEST CIRCUIT
Parameter
I
OL
Current Source
AC TEST CONDITIONS
Typ
V
IL
= 0, V
IH
= 3.0
5
1.5
1.5
Unit
V
ns
V
V
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
D.U.T.
C
eff
= 50 pf
V
Z
1.5V
(Bipolar Supply)
Notes:
VZ is programmable from -2V to +7V.
I
OL
& I
OH
programmable from 0 to 16mA.
Tester Impedance Z0 = 75Ω.
VZ 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.
I
OH
Current Source
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 4
White Electronic Designs
TIMING WAVEFORM - READ CYCLE
t
RC
ADDRESS
WS1M32-XXX
t
RC
ADDRESS
CS#
t
AA
t
AA
t
ACS
t
OH
DATA I/O
OE#
t
CHZ
t
CLZ
DATA VALID
PREVIOUS DATA VALID
READ CYCLE 1 (CS# = OE# = V
IL
, WE# = V
IH
)
t
OE
t
OLZ
DATA I/O
HIGH IMPEDANCE
READ CYCLE 2 (WE# = V
IH
)
DATA VALID
t
OHZ
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
DATA VALID
t
DH
DATA I/O
WRITE CYCLE 1, WE# CONTROLLED
WRITE CYCLE - CS# CONTROLLED
t
WC
ADDRESS
t
AW
t
AS
CS#
t
WP
WE#
t
DW
DATA I/O
WRITE CYCLE 2, CS# CONTROLLED
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Rev. 4
DATA VALID
t
CW
t
AH
t
DH
