IDT72805LB(1996) 데이터 시트보기 (PDF) - Integrated Device Technology

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IDT72805LB
(Rev.:1996)

CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1024 x 18

Integrated Device Technology 

IDT72805/72815/72825 CMOS Dual SyncFIFO™

256 x 18, 512 x 18, and 1024 x 18

COMMERCIAL TEMPERATURE RANGE

ABSOLUTE MAXIMUM RATINGS(1)

Symbol Rating

Commercial

Unit

VTERM Terminal Voltage

–0.5 to +7.0

V

with respect to GND

TA

Operating

Temperature

0 to +70

°C

TBIAS

Temperature Under

–55 to +125

°C

Bias

TSTG

Storage

Temperature

–55 to +125

°C

IOUT

DC Output Current

50

mA

NOTE:

3139 tbl 02

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS 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 maimum rating conditions for extended

periods may affect reliabilty.

RECOMMENDED DC

OPERATING CONDITIONS

Symbol

Parameter

Min. Typ. Max. Unit

VCC

Supply Voltage

4.5 5.0 5.5 V

GND Supply Voltage

0

0

0

V

VIH

Input High Voltage

2.0 — — V

VIL(1) Input Low Voltage

— — 0.8 V

NOTE:

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

3139 tbl 03

DC ELECTRICAL CHARACTERISTICS

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

Symbol

ILI(1)

ILO(2)

VOH

VOL

ICC1(3)

ICC2(3)

Parameter

Input Leakage Current (any input)

Output Leakage Current

Output Logic “1” Voltage, IOH = –2 mA

Output Logic “0” Voltage, IOL = 8 mA

Active Power Supply Current

Average Standby Current (All Input = VCC – 0.2V,

except RCLK and WCLK which are free-running)

Min.

–1

–10

2.4

—

—

—

IDT72805LB

IDT72815LB

IDT72825LB

Commercial

tCLK = 20, 25, 35ns

Typ.

—

—

—

—

—

—

NOTES:

1. Measurements with 0.4 ≤ VIN ≤ VCC.

2. OE ≥ VIH, 0.4 ≤ VOUT ≤ VCC.

3. Tested at f = 20MHz with outputs unloaded. Icc limits applicable when using both banks of FIFOs simultaneously.

Max

1

10

—

0.4

250

80

Unit

µA

µA

V

V

mA

mA

3139 tbl 04

CAPACITANCE (TA = +25°C, f = 1.0MHz)

Symbol Parameter(1) Conditions

Max.

CIN(2)

Input

VIN = 0V

10

Capacitance

COUT(1,2) Output

VOUT = 0V 10

Capacitance

NOTES:

1. With output deselected, (OE = HIGH).

2. Characterized values, not currently tested.

Unit

pF

pF

3139 tbl 05

5.17

4

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