IDT74FCT273ATD datasheet(4/7 Pages) IDT

Part #	IDT74FCT273ATD

Description	FAST CMOS OCTAL D FLIP-FLOP WITH MASTER RESET

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT54/74FCT273T/AT/CT FAST CMOS

OCTAL D FLIP-FLOP WITH MASTER RESET

6.10

4

POWER SUPPLY CHARACTERISTICS

NOTES:

2568 tbl 06

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5.0V, +25

°C ambient.

3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND.

4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.

5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC +

∆ICC DHNT + ICCD (fCP/2 + fiNi)

ICC = Quiescent Current

∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)

DH = Duty Cycle for TTL Inputs High

NT = Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

fi = Input Frequency

Ni = Number of Inputs at fi

All currents are in milliamps and all frequencies are in megahertz.

Symbol

Parameter

Test Conditions(1)

Min.

Typ.(2)

Max.

Unit

∆ICC

Quiescent Power Supply Current

TTL Inputs HIGH

VCC = Max.

VIN = 3.4V(3)

—

0.5

2.0

mA

ICCD

Dynamic Power Supply

Current(4)

VCC = Max.

Outputs Open

MR = VCC

One Input Toggling

50% Duty Cycle

VIN = VCC

VIN = GND

—

0.15

0.25

mA/

MHz

IC

Total Power Supply Current(6)

VCC = Max.

Outputs Open

fCP= 10MHz

50% Duty Cycle

VIN = VCC

VIN = GND

—

1.5

3.5

mA

MR = VCC

One Bit Toggling

at fi = 5MHz

50% Duty Cycle

VIN = 3.4V

VIN = GND

—

2.0

5.5

VCC = Max.

Outputs Open

fCP= 10MHz

50% Duty Cycle

VIN = VCC

VIN = GND

—

3.8

7.35)

MR = VCC

Eight Bits Toggling

at fi = 2.5MHz

50% Duty Cycle

VIN = 3.4V

VIN = GND

—

6.0

16.3(5)

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