IS61LV256-20J datasheet(3/8 Pages) ISSI

Part #	IS61LV256-20J

Description	32K x 8 LOW VOLTAGE CMOS STATIC RAM

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

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ISSI®

IS61LV256

Integrated Silicon Solution, Inc.

2-3

Rev. F 0296

SR81995LV61

DC ELECTRICAL CHARACTERISTICS (Over Operating Range)

Symbol Parameter

Test Conditions

Min.

Max.

Unit

VOH

Output HIGH Voltage

VCC = Min., IOH = –2.0 mA

2.4

—

V

VOL

Output LOW Voltage

VCC = Min., IOL = 4.0 mA

—

0.4

V

VIH

Input HIGH Voltage

2.2

VCC + 0.3

V

VIL

Input LOW Voltage(1)

–0.3

0.8

V

ILI

Input Leakage

GND

≤ VIN ≤ VCC

Com.

–2

2

µA

Ind.

–5

5

ILO

Output Leakage

GND

≤ VOUT ≤ VCC, Outputs Disabled

Com.

–2

2

µA

Ind.

–5

5

Notes:

1. VIL = –3.0V for pulse width less than 10 ns.

2. Not more than one output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.

CAPACITANCE(1,2)

Symbol

Parameter

Conditions

Max.

Unit

CIN

Input Capacitance

VIN = 0V

6

pF

COUT

Output Capacitance

VOUT = 0V

5

pF

Notes:

1. Tested initially and after any design or process changes that may affect these parameters.

2. Test conditions: TA = 25

°C, f = 1 MHz, Vcc = 3.3V.

POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)

-12 ns

-15 ns

-20 ns

-25 ns

Symbol Parameter

Test Conditions

Min. Max.

Unit

ICC1

Vcc Operating

VCC = Max.,

CE = VIL

Com.

—

50

—

50

—

50

—

50

mA

Supply Current

IOUT = 0 mA, f = 0

Ind.

—

60

—

60

—

60

ICC2

Vcc Dynamic Operating

VCC = Max.,

CE = VIL

Com.

—

100

—

90

—

80

—

70

mA

Supply Current

IOUT = 0 mA, f = fMAX

Ind.

—

100

—

90

—

80

ISB1

TTL Standby Current

VCC = Max.,

Com.

—

10

—

10

—

10

—

10

mA

(TTL Inputs)

VIN = VIH or VIL

Ind.

—

20

—

20

—

20

CE ≥ VIH, f = 0

ISB2

CMOS Standby

VCC = Max.,

Com.

—

2

—

2

—

2

—

2

mA

Current (CMOS Inputs)

CE ≤ VCC – 0.2V,

Ind.

—

5

—

5

—

5

VIN > VCC – 0.2V, or

VIN

≤ 0.2V, f = 0

Notes:

1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.

OPERATING RANGE

Range

Ambient Temperature

VCC

Commercial

0

°C to +70°C

3.3V +10%, –5%

Industrial

–40

°C to +85°C

3.3V

± 5%

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