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WMS1M1-XDEX

1Mx1 SRAM MONOLITHIC

White Electronic Designs => Micro Semi 

WMS1M1-XDEX

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Min

Operating Temperature

TA

-55

Storage Temperature

TSTG

-65

Signal Voltage Relative to GND VG

-0.5

2

Junction Temperature

Supply Voltage

TJ

VCC

-0.5

Max Unit

+125

°C

+150

°C

Vcc+0.5

V

150

°C

7.0

V

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Min

Supply Voltage

VCC

4.5

Input High Voltage

VIH

2.2

Input Low Voltage

VIL

-0.5

Operating Temp. (Mil.)

TA

-55

Max

Unit

5.5

V

VCC + 0.3

V

+0.8

V

+125

°C

TRUTH TABLE

CS

WE

Mode

I/O Pin

H

X Not Selected High-Z

L

H

Read

DOUT

L

L

Write

High-Z

H = High, L = Low, X = Don't Care

Cycle

—

Read

Write

Current

ISB1, ISB2

ICCA

ICCA

CAPACITANCE

(TA = +25°C)

Parameter

Symbol

Condition

Input capacitance

CIN

VIN = 0V, f = 1.0MHz

Output capicitance

COUT

VOUT = 0V, f = 1.0MHz

This parameter is guaranteed by design but not tested.

Max Unit

15 pF

15 pF

DC CHARACTERISTICS

(VCC = 5.0V, GND = 0V, TA = -55°C to +125°C)

Parameter

Sym

Conditions

Min

Input Leakage Current

ILI

VCC = 5.5, VIN = GND to VCC

Output Leakage Current

ILO

CS = VIH, OE = VIH, VOUT = GND to VCC

Operating Supply Current

ICC CS = VIL, OE = VIH, f = 5MHz, Vcc = 5.5

Standby Current

ISB

CS = VIH, OE = VIH, f = 5MHz

Output Low Voltage

VOL IOL = 8mA, VCC = 4.5

Output High Voltage

VOH IOH = -4.0mA, VCC = 4.5

2.4

NOTE: DC test conditions: VIH = VCC -0.3V, VIL = 0.3V

Units

Max

10

µA

10

µA

105

mA

30

mA

0.4

V

V

AC TEST CIRCUIT

I OL

Current Source

D.U.T.

Ceff = 50 pf

I OH

Current Source

White Microelectronics • Phoenix, AZ • (602) 437-1520

VZ ≈ 1.5V

(Bipolar Supply)

2

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.

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