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參數(shù)資料
| 型號： | WPS256K16T-25LJIGA |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | SRAM |
| 英文描述： | 256K X 16 STANDARD SRAM, 25 ns, PDSO44 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOJ-44 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 602K |
| 代理商： | WPS256K16T-25LJIGA |
3
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
EDI816256CA-XM44XG
WPS256K16X-XLJXG
March 2009
Rev. 1
White Electronic Designs Corp. reserves the right to change products or specications without notice.
AC CHARACTERISTICS
(VCC = 5.0V, VSS = 0V, TA = -55°C TO +125°C)
Parameter
Symbol
-15
-17
-20
-25
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tRC
15
17
20
25
ns
Address Access Time
tAA
15
17
20
25
ns
Output Hold from Address Change
tOH
000
0
ns
Chip Select Access Time
tACS
15
12
20
25
ns
Output Enable to Output Valid
tOE
10
12
15
ns
Chip Select to Output in Low Z
tCLZ1
333
3
ns
Output Enable to Output in Low Z
tOLZ1
000
0
ns
Chip Disable to Output in High Z
tCHZ1
810
10
12
ns
Output Disable to Output in High Z
tOHZ1
812
10
12
ns
LB#, UB# Access Time
tBA
10
12
14
ns
LB#, UB# Enable to Low Z Output
tBLZ1
000
0
ns
LB#, UB# Disable to High Z Output
tBH21
810
10
12
ns
NOTES:
1. This parameter is guaranteed by design but not tested
AC TEST CONDITIONS
Parameter
Typ
Unit
Input Pulse Levels
VIL = 0, VIH = 3.0
V
Input Rise and Fall
5
ns
Input and Output Reference Level
1.5
V
Output Timing Reference Level
1.5
V
Notes:
VZ is programmable from -2V to +7V.
IOL & IOH programmable from 0 to 16mA.
Tester Impedance Z0 = 75 Ω.
VZ is typically the midpoint of VOH and VOL.
IOL & IOH are adjusted to simulate a typical resistive load circuit.
ATE tester includes jig capacitance.
I
Current Source
D.U.T.
C
= 50 pf
eff
I OL
V
1.5V
(Bipolar Supply)
Z
Current Source
OH
AC TEST CONDITIONS
Data Retention Characteristics
(TA = -55°C TO +125°C)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Data Retention Supply Voltage
ILI
VCC = 5.5, VIN = VSS to VCC
2.0
5.5
V
Low Power Data Retention
ILO
CS = VIH, OE = VIH, VOUT = VSS to VCC
115
mA
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