72255LA20PFG datasheet(5/27 Pages) IDT

Part #	72255LA20PFG

Description	CMOS SuperSync FIFO

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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5

IDT72255LA/72265LA CMOS SuperSync FIFO™

8,192 x 18 and 16,384 x 18

COMMERCIAL AND INDUSTRIAL

TEMPERATURE RANGES

Symbol

Parameter(1)

Conditions

Max.

Unit

CIN(2)

Input

VIN = 0V

10

pF

Capacitance

COUT(1,2)

Output

VOUT = 0V

10

pF

Capacitance

Symbol

Rating

Com’l & Ind’l

Unit

VTERM

TerminalVoltage

–0.5 to +7.0

V

with respect to GND

TSTG

Storage

–55to+125

°C

Temperature

IOUT

DCOutputCurrent

–50to+50

mA

NOTES:

1. With output deselected, (OE

≥ VIH).

2. Characterized values, not currently tested.

DC ELECTRICAL CHARACTERISTICS

(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C; Industrial: VCC = 5V

± 10%, TA = -40°C to +85°C)

NOTE:

1. 1.5V undershoots are allowed for 10ns once per cycle.

IDT72255LA

IDT72265LA

Commercial & Industrial(1)

tCLK = 10, 15, 20 ns

Symbol

Parameter

Min.

Max.

Unit

ILI(2)

InputLeakageCurrent

–1

1

μA

ILO(3)

OutputLeakageCurrent

–10

10

μA

VOH

Output Logic “1” Voltage, IOH = –2 mA

2.4

—

V

VOL

Output Logic “0” Voltage, IOL = 8 mA

—

0.4

V

ICC1(4,5,6)

Active Power Supply Current

—

80

mA

ICC2(4,7)

StandbyCurrent

—

20

mA

NOTES:

1. Industrial temperature range product for 15ns and 20ns speed grades are available as a standard device.

2. Measurements with 0.4

≤ VIN ≤ VCC.

3. OE

≥ VIH, 0.4 ≤ VOUT ≤ VCC.

4. Tested with outputs disabled (IOUT = 0).

5. RCLK and WCLK toggle at 20 MHz and data inputs switch at 10 MHz.

6. Typical ICC1 = 15 + 2.1*fS + 0.02*CL*fS (in mA) with VCC = 5V, TA = 25°C, fS = WCLK frequency = RCLK frequency (in MHz, using TTL levels), data

switching at fS/2, CL = capacitive load (in pF).

7. All Inputs = VCC –0.2V or GND + 0.2V, except RCLK and WCLK, which toggle at 20 MHz.

NOTE:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause

permanent damage to the device. This is a stress rating only and functional operation

of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect reliability.

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED DC OPERATING

CONDITIONS

CAPACITANCE

(TA = +25°C, f = 1.0MHz)

Symbol

Parameter

Min.

Typ.

Max.

Unit

VCC

Supply Voltage (Com’l/Ind’l)

4.0

5.0

5.5

V

GND

Supply Voltage (Com’l/Ind’l)

0

V

VIH

Input High Voltage (Com’l/Ind’l)

2.0

⎯

—V

VIL(1)

Input Low Voltage (Com’l/Ind’l)

⎯

0.8

V

TA

OperatingTemperature

0

⎯

+70

°C

Commercial

TA

OperatingTemperature

-40

⎯

+85

°C

Industrial

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