ws1m8-xxx ETC-unknow, ws1m8-xxx Datasheet - Page 3

• Manufacturer Part Number: ws1m8-xxx
• Description: 2x512kx8 Dualithictm Sram
• Manufacturer: ETC-unknow

1. This parameter is guaranteed by design but not tested.
2. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
1. This parameter is guaranteed by design but not tested.
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
July 2004
Rev. 5
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
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
C
eff
= 50 pf
D.U.T.
Current Source
Current Source
White Electronic Designs
AC TEST CIRCUIT
I
I
OL
OH
Symbol
Symbol
t
t
t
t
t
t
t
WHZ
t
CHZ
OHZ
t
CLZ
OLZ
t
t
t
t
t
t
t
ACS
t
t
OW
t
OE
WC
CW
AW
DW
WP
RC
OH
AS
AH
DH
AA
2
1
1
2
1
2
1
V
V
CC
CC
AC CHARACTERISTICS
AC CHARACTERISTICS
V
(Bipolar Supply)
Min
Z
= 5.0V, V
17
= 5.0V, V
14
14
17
14
0
2
0
9
0
0
2
0
≈
-17
-17
1.5V
Max
17
17
9
9
9
9
SS
SS
= 0V, -55°C ≤ T
= 0V, -55°C ≤ T
Min
20
20
14
14
10
14
0
2
0
0
0
3
0
3
-20
-20
Max
20
20
10
10
10
9
Notes:
V
I
Tester Impedance Z0 = 75 Ω.
V
I
ATE tester includes jig capacitance.
OL
OL
Z
Z
Parameter
Input Pulse Levels
Input Rise and Fall
Input and Output Reference Level
Output Timing Reference Level
is programmable from -2V to +7V.
is typically the midpoint of V
& I
& I
A
A
≤ +125°C
≤ +125°C
OH
OH
Min
25
25
15
15
10
15
0
2
0
0
0
4
0
White Electronic Designs Corporation • [phone] • www.wedc.com
programmable from 0 to 16mA.
are adjusted to simulate a typical resistive load cir cuit.
-25
-25
Max
25
25
12
12
12
10
AC TEST CONDITIONS
Min
35
35
25
25
20
25
0
4
0
0
0
4
0
-35
-35
OH
Max
and V
35
35
25
15
15
15
OL
Min
.
45
45
35
35
25
35
VIL = 0, VIH = 3.0
0
4
0
0
5
5
0
-45
-45
WS1M8-XXX
Max
Typ
1.5
1.5
45
45
25
20
20
15
5
Min
55
55
50
50
25
40
0
4
0
0
5
5
0
-55
-55
Max
Unit
55
55
25
20
20
25
ns
V
V
V
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns