IDT72205LB10TF(2000) Ver la hoja de datos (PDF) - Integrated Device Technology

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IDT72205LB10TF
(Rev.:2000)

CMOS SyncFIFO™ 256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18

Integrated Device Technology 

IDT72205LB/72215LB/72225LB/72235LB/72245LB CMOS SyncFIFO™

256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18

Commercial And Industrial Temperature Ranges

ABSOLUTE MAXIMUM RATINGS

Symbol

Rating

Com'l & Ind'l Unit

VTERM Terminal Voltage

–0.5 to +7.0

V

with respect to GND

TSTG

Storage

Temperature

–55 to +125

°C

IOUT

DC Output Current

–50 to +50

mA

NOTE:

2766 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 maximum rating conditions for extended

periods may affect reliability.

RECOMMENDED DC

OPERATING CONDITIONS

Symbol

Parameter

Min. Typ.

VCC Supply Voltage

Com'l/Ind'l

4.5

5.0

GND Supply Voltage

0

0

VIH

VIL(1)

Input High Voltage

Com'l/Ind'l

Input Low Voltage

Com'l/Ind'l

2.0

—

—

—

TA

Operating Temperature 0

—

Commercial

TA

Operating Temperature –40

—

Industrial

NOTE:

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

Max. Unit

5.5 V

0V

—V

0.8 V

70 °C

85 °C

2766 tbl 03

DC ELECTRICAL CHARACTERISTICS

(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C; Industrial: VCC = 5V ± 10%, TA = –40°C to +85°C )

Symbol

ILI(2)

ILO(3)

VOH

Parameter

Input Leakage Current (any input)

Output Leakage Current

Output Logic “1” Voltage, IOH = –2 mA

IDT72205LB

IDT72215LB

IDT72225LB

IDT72235LB

IDT72245LB

Commercial and Industrial(1)

tCLK = 10, 15, 25 ns

Min.

Typ.

Max.

Unit

–1

—

1

µA

–10

—

10

µA

2.4

—

—

V

VOL

Output Logic “0” Voltage, IOL = 8 mA

—

—

0.4

V

ICC1(4,5,6) Active Power Supply Current

—

—

60

mA

ICC2(4,7)

Standby Current

—

—

5

mA

NOTES:

2766 tbl 04

1. Industrial temperature range product for the 15ns and the 25 ns speed grade is available as a standard device.

2. Measurements with 0.4 ≤ VIN ≤ VCC.

3. OE ≥ VIH, 0.4 ≤ VOUT ≤ VCC.

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

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

6. For the 72205/72215/72225 the typical ICC1 = 1.81 + 1.12*fS + 0.02*CL*fS (in mA);

for the 72235/72245 the typical ICC1 = 2.85 + 1.30*fS + 0.02*CL*fS (in mA).

These equations are valid under the following conditions:

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.

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 ≥ VIH).

2. Characterized values, not currently tested.

AC TEST CONDITIONS

Unit

Input Pulse Levels

pF

Input Rise/Fall Times

Input Timing Reference Levels

Output Reference Levels

pF

Output Load

2766 tbl 05

GND to 3.0V

3ns

1.5V

1.5V

See Figure 1

2766 tbl 06

4

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