White Electronic Designs
32Kx32 EEPROM MODULE, SMD 5962-94614
FEATURES
Access Times of 80**, 90, 120, 150ns
MIL-STD-883 Compliant Devices Available
Packaging:
• 68 lead, Hermetic CQFP (G2U), 122.4mm
(0.880") square, 3.56mm (0.140") height
(Package 510).
• 66-pin, PGA Type, 1.075" square, Hermetic
Ceramic HIP (Package 400)
* This product is subject to change without notice.
** 80ns speed is not fully characterized and is subject to change or cancellation without
notice.
WE32K32-XXX
Data Retention at 25°C, 10 Years
Write Endurance, 10,000 Cycles
Organized as 32Kx32; User Configurable 64Kx16
or 128Kx8
Commercial, Industrial and Military Temperature
Ranges
Automatic Page Write Operation
Page Write Cycle Time: 10ms Max
Data Polling for End of Write Detection
Hardware and Software Data Protection
TTL Compatible Inputs and Outputs
5 Volt Power Supply
Low Power CMOS, 10mA Standby Typical
Built-in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation
FIGURE 1 – PIN CONFIGURATION FOR
WE32K32N-XH1X
Top View
1
I/O
8
I/O
9
I/O
10
A
13
A
14
NC
NC
NC
I/O
0
I/O
1
I/O
2
11
22
12
WE
2
#
CS
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#
NC
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
NC
A
8
A
9
I/O
16
I/O
17
I/O
18
44
34
V
CC
CS
4
#
WE
4
#
I/O
27
A
3
A
4
A
5
WE
3
#
CS
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
56
Pin Description
I/O0-31
A0-14
WE1-4#
CS1-4#
OE#
V
CC
GND
NC
Data Input/Output
Address Inputs
Write Enable
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
Block Diagram
W E
1
# CS
1
#
W E
2
# CS
2
#
W E
3
# CS
3
#
W E
4
# CS
4
OE#
A
0-14
32K x 8
32K x 8
I/O
23
I/O
22
32K x 8
32K x 8
I/O
21
I/O
20
8
8
8
8
66
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2006
Rev. 4
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
WE32K32-XXX
FIGURE 2 – PIN CONFIGURATION FOR WE32K32-XG2UX
Top View
NC
A
0
A
1
A
2
A
3
A
4
A
5
CS
3
#
GND
CS
4
#
WE
1
#
A
6
A
7
A
8
A
9
A
10
V
CC
Pin Description
I/O0-31
A0-14
WE1-4#
CS1-4#
OE#
V
CC
GND
NC
Data Input/Output
Address Inputs
Write Enable
Chip Selects
Output Enable
Power Supply
Ground
Not Connected
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
I/O
0
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
GND
I/O
8
I/O
9
I/O
10
I/O
11
I/O
12
I/O
13
I/O
14
I/O
15
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
I/O
16
I/O
17
I/O
18
I/O
19
I/O
20
I/O
21
I/O
22
I/O
23
GND
I/O
24
I/O
25
I/O
26
I/O
27
I/O
28
I/O
29
I/O
30
I/O
31
CS
1
#
OE#
CS
2
#
NC
WE
2
#
WE
3
#
WE
4
#
W E
3
# CS
3
#
NC
NC
A
12
A
13
V
CC
A
14
A
11
Block Diagram
W E
1
# CS
1
#
OE#
A
0-14
32K x 8
32K x 8
W E
2
# CS
2
#
W E
4
# CS
4
#
32K x 8
32K x 8
8
8
8
I/O
0-7
I/O
8-15
I/O
16-23
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2006
Rev. 4
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
NC
NC
NC
8
I/O
24-31
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating Temperature
Storage Temperature
Signal Voltage Relative to GND
Voltage on OE# and A9
Symbol
T
A
T
S
T
G
V
G
-55 to +125
-65 to +150
-0.6 to + 6.25
-0.6 to +13.5
Unit
°C
°C
V
V
CS#
H
L
L
X
X
X
OE#
X
L
H
H
X
L
WE#
X
H
L
X
H
X
WE32K32-XXX
TRUTH TABLE
Mode
Standby
Read
Write
Out Disable
Write
Inhibit
Data I/O
High Z
Data Out
Data In
High Z/Data Out
NOTE:
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent
damage to the device. This is a stress rating only and functional operation of the device
at these or any other conditions above those indicated in the operational sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
CAPACITANCE
T
A
= +25°C
Parameter
Address input capacitance
OE# capacitance
WE# capacitance
CS1-4# capacitance
Data I/O capacitance
Symbol
C
AD
C
OE
C
WE
C
CS
C
I/O
Conditions
VIN = 0 V, f = 1.0 MHz
VIN = 0 V, f = 1.0 MHz
VIN = 0 V, f = 1.0 MHz
VI/O = 0 V, f = 1.0 MHz
Max Unit
50
50
25
40
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
2.0
-0.3
-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.
DC CHARACTERISTICS
V
CC
= 5.0V, GND = 0V, -55°C ≤ T
A
≤ +125°C
Parameter
Input Leakage Current
Output Leakage Current
Operating Supply Current (x32)
Standby Current
Output Low Voltage
Output High Voltage
Symbol
I
LI
I
LOx32
I
CCx32
I
SB
V
OL
V
OH
Conditions
V
CC
= 5.5, V
IN
= GND to V
CC
CS# = V
IH
, OE# = V
IH
, V
OU
T = GND to
V
CC
CS# = V
IL
, OE# = V
IH
, f = 5MHz
CS# = V
IH
, OE# = V
IH
, f = 5MHz
I
OL
= 2.1mA, V
CC
= 4.5V
I
OH
= -400µA, V
CC
= 4.5V
-80
Min
Max
10
10
320
2.5
0.45
2.4
2.4
Min
-90
Max
10
10
250
2.5
0.45
2.4
-120
Min
Max
10
10
200
2.5
0.45
2.4
-150
Min
Max
10
10
150
2.5
0.45
Unit
µA
µA
mA
mA
V
V
FIGURE 3
AC Test Circuit
AC TEST CONDITIONS
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
Typ
V
IL
= 0, V
IH
= 3.0
5
1.5
1.5
Unit
V
ns
V
V
≈
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.
March 2006
Rev. 4
3
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
WRITE
A write cycle is initiated when OE# is high and a low pulse
is on WE# or CS# with CS# or WE# low. The address
is latched on the falling edge of CS# or WE# whichever
occurs last. The data is latched by the rising edge of CS#
or WE#, whichever occurs first. A byte write operation will
automatically continue to completion.
WE32K32-XXX
The WE# line transition from high to low also initiates
an internal 150 µsec delay timer to permit page mode
operation. Each subsequent WE# transition from high to
low that occurs before the completion of the 150 µsec time
out will restart the timer from zero. The operation of the
timer is the same as a retriggerable one-shot.
WRITE CYCLE TIMING
Figures 4 and 5 show the write cycle timing relationships.
A write cycle begins with address application, write enable
and chip select. Chip select is accomplished by placing
the CS# line low. Write enable consists of setting the WE#
line low. The write cycle begins when the last of either CS#
or WE# goes low.
AC Write Characteristics
V
CC
= 5.0V, GND = 0V, -55°C ≤ T
A
≤ +125°C
WRITE CYCLE
Write Cycle Parameter
Write Cycle Time, TYP = 6ms
Address Set-up Time
Write Pulse Width (WE# or CS#)
Chip Select Set-up Time
Address Hold Time
Data Hold Time
Chip Select Hold Time
Data Set-up Time
Write Pulse Width High
Output Enable Set-up Time
Output Enable Hold Time
-80
Symbol
Min
t
WC
t
AS
t
WP
t
CS
t
AH
t
DH
t
CSH
t
DS
t
WPH
t
OES
t
OEH
0
100
0
50
0
0
50
50
10
10
Max
10
0
100
0
50
0
0
50
50
10
10
Min
Max
10
30
150
0
100
10
0
100
50
10
10
Min
Max
10
30
150
0
100
10
0
100
50
10
10
Min
Max
10
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
-90
-120
-150
Unit
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2006
Rev. 4
4
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
FIGURE 4 – WRITE WAVEFORMS WE# CONTROLLED
WE32K32-XXX
t
WC
OE#
t
OES
ADDRESS
t
AS
CS
1-4
#
t
CS
WE
1-4
#
t
WP
t
DS
DATA IN
t
WPH
t
DH
t
AH
t
CSH
t
OEH
FIGURE 5 – WRITE WAVEFORMS CS# CONTROLLED
t
WC
OE#
t
OES
ADDRESS
t
AS
WE
1 - 4#
t
CS
CS
1 - 4#
t
WP
t
DS
DATA IN
t
WPH
t
DH
t
AH
t
CSH
t
OEH
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
March 2006
Rev. 4
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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