White Electronic Designs
1Mx32 SRAM MODULE
FEATURES
Access Time of 70, 85, 100, 120ns
84 lead, 28mm CQFP, (Package 511)
Organized as two banks of 512Kx32, User
Configurable as 1Mx16 or 2Mx8
Commercial, Industrial and Military Temperature
Ranges
TTL Compatible Inputs and Outputs
5V Power Supply
Low Power CMOS
WS1M32-XG3X
PRELIMINARY*
Weight - WS1M32-XG3X - 20 grams typical
*This product is under development, is not qualified or characterized and is subject to
change without notice.
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
PIN DESCRIPTION
I/O0-31
A0-18
WE1-4#
CS1-2#
OE1-4#
V
CC
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
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
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
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
fi
lls the same
fi
t 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.
February, 2001
Rev. 5
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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
Min
-40
-65
-0.5
-0.5
Max
+85
+150
V
CC
+0.5
150
4.6
Unit
°C
°C
V
°C
V
WS1M32-XG3X
PRELIMINARY
CAPACITANCE
T
A
= +25°C
Parameter
OE#1-4 capacitance
WE#1-4 capacitance
CS#1-2 capacitance
Data I/O capacitance
Address input capacitance
Symbol
C
OE
C
WE
C
CS
C
I/O
C
AD
Conditions
V
IN
= 0V, f = 1.0MHz
V
IN
= 0V, f = 1.0MHz
V
IN
= 0V, f = 1.0MHz
V
I/O
= 0V, f = 1.0MHz
V
IN
= 0V, f = 1.0MHz
Max
30
30
30
30
100
Unit
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 Temperature (Ind.)
Symbol
V
CC
V
IH
V
IL
T
A
Min
3.0
2.2
-0.3
-40
Max
3.6
V
CC
+ 0.3
+0.8
+85
Unit
V
V
V
°C
CS1# CS2# OE#
H
H
X
L
H
L
L
H
H
L
H
X
H
L
L
H
L
H
H
L
X
L
L
X
TRUTH TABLE
WE#
X
H
H
L
H
H
L
X
Mode
Standby
Read
Out Disable
Write
Read
Out Disable
Write
Invalid State
Data I/O
Power
High Z
Standby
Data Out
Active
High Z
Active
Data In
Active
Data Out
Active
High Z
Active
Data In
Active
Invalid State Invalid State
DC CHARACTERISTICS
V
CC
= 3.3V ± 0.3V, -55°C
≤
T
A
≤
+125°C
Parameter
Input Leakage Current
Output Leakage Current
Operating Supply Current x 32 Mode
Standby Current
Standby Current (Low Power)
Output Low Voltage
Output High Voltage
NOTE: DC test conditions: V
IH
= V
CC
-0.3V, V
IL
= 0.3V
Symbol
I
LI
I
LO
I
CC x 32
I
SB
I
SB2
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
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
Min
Max
10
10
220
10
900
0.4
2.4
Units
μA
μA
mA
mA
μA
V
V
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
February, 2001
Rev. 5
2
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
AC CHARACTERISTICS
V
CC
= 5.0V, GND = 0V, -55°C
≤
T
A
≤
+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.
WS1M32-XG3X
PRELIMINARY
Symbol
t
RC
t
AA
t
OH
t
ACS
t
OE
t
CLZ
1
t
OLZ
1
t
CHZ
1
t
OHZ
1
-70
Min
70
5
70
35
10
5
25
25
10
5
Max
70
5
Min
85
-85
Max
85
5
85
40
10
5
25
25
Min
100
-100
Max
100
5
100
50
10
5
35
35
Min
120
-120
Max
120
120
60
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
35
35
AC CHARACTERISTICS
V
CC
= 5.0V, GND = 0V, -55°C
≤
T
A
≤
+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
1
t
DH
-70
Min
70
60
60
30
50
0
5
5
0
Max
Min
85
75
75
30
50
0
5
5
0
-85
Max
Min
100
80
80
40
60
0
5
5
0
-100
Max
Min
120
100
100
40
60
0
5
5
0
-120
Max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
25
25
35
35
AC TEST CIRCUIT
AC TEST CONDITIONS
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
V
Z
≈ 1.5V
(Bipolar Supply)
I
OL
Current Source
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
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 = 75Ω.
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 Corp. reserves the right to change products or specifications without notice.
February, 2001
Rev. 5
3
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
TIMING WAVEFORM - READ CYCLE
WS1M32-XG3X
PRELIMINARY
t
RC
ADDRESS
t
RC
ADDRESS
t
AA
t
OH
DATA I/O
PREVIOUS DATA VALID
DATA VALID
OE#
CS#
t
AA
t
ACS
t
CLZ
t
CHZ
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
AS
WE#
t
WHZ
DATA I/O
t
DW
DATA VALID
WRITE CYCLE 1, WE# CONTROLLED
t
WP
t
OW
t
DH
t
AH
WRITE CYCLE - CS# CONTROLLED
t
WC
ADDRESS
t
AS
CS#
t
WP
WE#
t
DW
DATA I/O
DATA VALID
WRITE CYCLE 2, CS# CONTROLLED
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
February, 2001
Rev. 5
4
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
t
AW
t
CW
t
AH
t
DH
White Electronic Designs
WS1M32-XG3X
PRELIMINARY
PACKAGE 511: 84 LEAD, CERAMIC QUAD FLAT PACK (G3)
30.23 (1.190) ± 0.25 (0.010) SQ
27.18 (1.070) ± 0.25 (0.010) SQ
4.29 (0.169) ±
0.28 (0.011)
4.12 (0.162) ± 0.20 (0.008)
0.25 (0.010) ±
0.03 (0.002)
R 0.127
(0.005) MIN
29.11 (1.146) ±
0.25 (0.010)
1/7
0.19 (0.008) ±
0.06 (0.003)
1.02 (0.040) ±
0.12 (0.005)
DETAIL A
1.27 (0.050)
TYP
0.38 (0.015) ±
0.05 (0.002)
25.40 (1.000) TYP
0.27 (0.011) ±
0.04 (0.001)
SEE DETAIL “A”
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"
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
February, 2001
Rev. 5
5
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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