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White Electronic Designs Corporation • Phoenix AZ • (602) 437-1520
White Electronic Designs
WMS128K8-XXX
Parameter Sym Conditions -70 -85 -100 -120 Units
Min Max Min Max Min Max Min Max
Input Leakage Current ILI VCC = 5.5, VIN = GND to VCC 10 10 10 10 µA
Output Leakage Current ILO CS = VIH, OE = VIH, VOUT = GND to VCC 10 10 10 10 µA
Operating Supply Current ICC CS = VIL, OE = VIH, f = 5MHz, Vcc = 5.5 30 30 30 30 mA
Standby Current ISB CS = VIH, OE = VIH, f = 5MHz, Vcc = 5.5 5 5 5 5 mA
Output Low Voltage VOL IOL = 2.1mA, Vcc = 4.5 0.4 0.4 0.4 0.4 V
Output High Voltage VOH IOH = -1.0mA, Vcc = 4.5 2.4 2.4 2.4 2.4 V
ABSOLUTE MAXIMUM RATINGS TRUTH TABLE
RECOMMENDED OPERATING CONDITIONS
Parameter Symbol Min Max Unit
Operating Temperature TA-55 +125 °C
Storage Temperature TSTG -65 +150 °C
Signal Voltage Relative to GND VG-0.5 Vcc+0.5 V
Junction Temperature TJ150 °C
Supply Voltage VCC -0.5 7.0 V
Parameter Symbol Min Max Unit
Supply Voltage VCC 4.5 5.5 V
Input High Voltage VIH 2.2 VCC + 0.3 V
Input Low Voltage VIL -0.5 +0.8 V
DC CHARACTERISTICS
(VCC = 5.0V, GND = 0V, TA = -55°C TO +125°C)
DATA RETENTION CHARACTERISTICS
(TA = -55°C TO +125°C)
CS OE WE Mode Data I/O Power
H X X Standby High Z Standby
L L H Read Data Out Active
L H H Out Disable High Z Active
L X L Write Data In Active
Parameter Symbol Conditions -70 -85 -100 -120 Units
Min Max Min Max Min Max Min Max
Data Retention
Supply Voltage VDR CS ³ VCC -0.2V 2.0 5.5 2.0 5.5 2.0 5.5 2.0 5.5 V
Data Retention
Current I CCDR1 VCC = 3V 1 1 1 1 mA
CAPACITANCE
(TA = +25°C)
Parameter
Symbol
Condition Package Max Unit
Input capacitance CIN
V
IN
= 0V, f = 1.0MHz
32 Pin CSOJ, DIP, 12 pF
Flat Pack Evolutionary
32 Pin CSOJ Revolutionary 20 pF
Output capicitance COUT
V
OUT
= 0V, f = 1.0MHz
32 Pin CSOJ, DIP, 12 pF
Flat Pack Evolutionary
32 Pin CSOJ Revolutionary 20 pF
This parameter is guaranteed by design but not tested.
NOTE: DC test conditions: VIH = VCC -0.3V, VIL = 0.3V