1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WEDPS512K32V-XBX
June 2004
Rev. 5
512Kx32 SRAM 3.3V MULTI-CHIP PACKAGE
Low Power Data Retention 'L' Option
TTL Compatible Inputs and Outputs
Fully Static Operation:
No clock or refresh required.
Three State Output.
This product is subject to change without notice.
FEATURES
Access Times of 12, 15, 17, 20ns
Packaging
143 PBGA, 16mm x 18mm, 288mm
2
Organized as 512Kx32; User Confi gurable as
1Mx16 or 2Mx8
Commercial, Industrial and Military Temperature
Ranges
Low Voltage Operation:
3.3V 10% Power Supply
PIN CONFIGURATION FOR WEDPS512K32V-XBX
Pin Description
I/O
0-31
Data Inputs/Outputs
A
0-18
Address Inputs
WE
1-4
#
Write Enables
CS
1-4
#
Chip Selects
OE#
Output Enable
V
CC
Power Supply
GND Ground
NC
Not Connected
Block Diagram
WE
1
# CS
1
#
512K X 8
8
8
8
8
512K X 8
512K X 8
512K X 8
OE#
A
0-18
I/O
0 - 7
I/O
8 - 15
I/O
16 - 23
I/O
24 - 31
WE
2
# CS
2
#
WE
3
# CS
3
#
WE
4
# CS
4
#
Top View
1
2
3
4
5
6
7
8
9
10
11
12
A
-
A2
A1
A0
GND
GND
VCC
VCC
A18
A17
A16
GND
B
CS2#
A3
A4
D14
D15
NC
CS4#
D24
D25
OE#
A15
NC
C
D9
D8
NC
D12
D13
GND
VCC
D26
D27
WE4#
D31
D30
D
D10
D11
GND
GND
GND
GND
VCC
VCC
VCC
VCC
D28
D29
E
WE2#
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
VCC
NC
F
GND
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
VCC
VCC
G
VCC
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
GND
H
CS1#
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
NC
J
D1
D0
VCC
VCC
VCC
VCC
GND
GND
GND
GND
D23
D22
K
D2
D3
NC
D7
D5
VCC
GND
D17
D16
CS3#
D20
D21
L
WE1#
A6
A5
D6
D4
NC
WE3#
D19
D18
A14
A13
NC
M
GND
A7
A8
A9
vcc
vcc
GND
GND
A10
A11
A12
vcc
2
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WEDPS512K32V-XBX
June 2004
Rev. 5
NOTE: Refer to Application Note "PBGA Thermal Resistance Correlation" at
www.wedc.com in the application notes section for modeling conditions.
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
4.6
V
Junction Temperature
T
J
150
C
Supply Voltage
V
CC
-0.5
4.6
V
TRUTH TABLE
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min
Max
Unit
Supply Voltage
V
CC
3.0
3.6
V
Input High Voltage
V
IH
2.2
V
CC
+ 0.3
V
Input Low Voltage
V
IL
-0.3
+0.8
V
DC CHARACTERISTICS
V
CC
= 3.3V 0.3V, -55C T
A
+125C
Parameter
Symbol
Conditions
Min
Max
Units
Input Leakage Current
I
LI
V
IN
= GND to V
CC
10
A
Output Leakage Current
I
LO
CS# = V
IH
, OE# = V
IH
, V
OUT
= GND to V
CC
10
A
Operating Supply Current (x 32 Mode)
I
CC
x 32
CS# = V
IL
, OE# = V
IH
, f = 5MHz, V
CC
= 3.6V
400
mA
Standby Current
I
SB
CS# = V
IH
, OE# = V
IH
, f = 5MHz, V
CC
= 3.6V
120
mA
Output Low Voltage
V
OL
I
OL
= 4.0mA
0.4
V
Output High Voltage
V
OH
I
OH
= -4.0mA
2.4
V
NOTE: DC test conditions: V
IH
= V
CC
-0.3V, V
IL
= 0.3V.
Contact factory for low power option.
DATA RETENTION CHARACTERISTICS (WEDPS512K32LV-XBX only)
-55C T
A
+125C
Parameter
Symbol
Conditions
Min
Max
Units
Data Retention Voltage
V
CC
V
CC
= 2.19V
2.19
V
Data Retention Current
I
CCDR
CS = V
CC
- 0.2V
8.0
mA
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
Ta = +25C
Parameter
Symbol
Conditions Max
Unit
OE# capacitance
C
OE
V
IN
= 0 V, f = 1.0 MHz
30
pF
WE
1-4
# capacitance
C
WE
V
IN
= 0 V, f = 1.0 MHz
10
pF
CS
1-4
# capacitance
C
CS
V
IN
= 0 V, f = 1.0 MHz
10
pF
Data I/O capacitance
C
I/O
V
I/O
= 0 V, f = 1.0 MHz
10
pF
Address input capacitance
C
AD
V
IN
= 0 V, f = 1.0 MHz
30
pF
This parameter is guaranteed by design but not tested.
BGA THERMAL RESISTANCE
Parameter
Symbol
Max
Unit
Note
Junction to Ambient (No Airfl ow)
Theta JA
16.9
C/W
1
Junction to Ball
Theta JB
11.3
C/W
1
Junction to Case (Top)
Theta JC
9.8
C/W
1
3
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WEDPS512K32V-XBX
June 2004
Rev. 5
Current Source
Current Source
I
OL
I
OH
C
eff
= 50 pf
D.U.T.
V
Z
1.5V
(Bipolar Supply)
AC CHARACTERISTICS
V
CC
= 3.3V, -55C T
A
+125C
Parameter
Read Cycle
Symbol
-12
-15
-17
-20
Units
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
t
RC
12
15
17
20
ns
Address Access Time
t
AA
12
15
17
20
ns
Output Hold from Address Change
t
OH
0
0
0
0
ns
Chip Select Access Time
t
ACS
12
15
17
20
ns
Output Enable to Output Valid
t
OE
7
8
8
10
ns
Chip Select to Output in Low Z
t
CLZ
1
1
1
1
1
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
7
8
8
10
ns
Output Disable to Output in High Z
t
OHZ
1
7
8
8
10
ns
1. This parameter is guaranteed by design but not tested.
FIGURE 4 AC TEST CIRCUIT
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.
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
AC CHARACTERISTICS
V
CC
= 3.3V, -55C T
A
+125C
Parameter
Write Cycle
Symbol
-12
-15
-17
-20
Units
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
t
WC
12
15
17
20
ns
Chip Select to End of Write
t
CW
10
12
12
14
ns
Address Valid to End of Write
t
AW
10
12
12
14
ns
Data Valid to End of Write
t
DW
8
9
9
10
ns
Write Pulse Width
t
WP
10
12
14
14
ns
Address Setup Time
t
AS
0
0
0
0
ns
Address Hold Time
t
AH
0
0
0
0
ns
Output Active from End of Write
t
OW
1
2
2
3
3
ns
Write Enable to Output in High Z
t
WHZ
1
7
8
8
9
ns
Data Hold Time
t
DH
0
0
0
0
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
WEDPS512K32V-XBX
June 2004
Rev. 5
READ CYCLE 2, (CS# = OE# = V
IL
, WE# = V
IH
)
READ CYCLE 2 (WE# = V
IH
)
CS#
OE#
WRITE CYCLE 2, CS# CONTROLLED
CS#
WE#
WRITE CYCLE 1, WE# CONTROLLED
CS#
WE#
TIMING WAVEFORM - READ CYCLE
WRITE CYCLE - CS# CONTROLLED
WRITE CYCLE - WE# CONTROLLED
5
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
WEDPS512K32V-XBX
June 2004
Rev. 5
PACKAGE 756: 143 BALL GRID ARRAY
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
0.61 (0.024)
BSC
1.27
(0.050)
BSC
1.27 (0.050) BSC
A
B
C
D
E
F
G
H
J
K
L
M
13.97 (0.550)
BSC
16.25 (0.640)
MAX
18.25 (0.719)
MAX
13.97 (0.550)
BSC
1.93 (0.076)
MAX
BOTTOM VIEW
12 11 10 9 8 7 6 5 4 3 2 1
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