IDT49FCT805CT datasheet(4/7 Pages) IDT

Part #	IDT49FCT805CT

Description	FAST CMOS BUFFER/CLOCK DRIVER

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Manufacturer	IDT [Integrated Device Technology]

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MILITARYANDCOMMERCIALTEMPERATURERANGES

IDT49FCT805BT/CT

FAST CMOSBUFFER/CLOCKDRIVER

NOTES:

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 = 5V, +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 IC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC +

∆ICC DHNT + ICCD (fONO)

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

∆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)

fO = Output Frequency

NO = Number of Outputs at fO

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

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

TestConditions(1)

Min.

Typ.(2)

Max.

Unit

∆ICC

Quiescent Power Supply Current

VCC = Max.

—

1

2

mA

TTL Inputs HIGH

VIN = 3.4V(3)

ICCD

Dynamic Power Supply Current(4)

VCC = Max.

VIN = VCC

—

60

100

µA/MHz

OutputsOpen

VIN = GND

OEA = OEB = GND

50% Duty Cycle

IC

TotalPowerSupplyCurrent(6)

VCC = Max.

VIN = VCC

—

1.5

3

OutputsOpen

VIN = GND

fO = 25MHz

50% Duty Cycle

VIN = 3.4V

—

1.8

4

OEA

= OEB = VCC

VIN = GND

Mon.OutputToggling

VCC = Max.

VIN = VCC

—

33

55.5

(5)

mA

OutputsOpen

VIN = GND

fO = 50MHz

50% Duty Cycle

VIN = 3.4V

—

33.5

57.5

(5)

OEA = OEB = GND

VIN = GND

ElevenOutputsToggling

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