MILITARYANDINDUSTRIALTEMPERATURERANGES

4

IDT54/74FCT162244T/AT/CT/ET

FASTCMOS16-BITBUFFER/LINEDRIVER

Symbol

Parameter

Test Conditions(1)

Min.

Typ.(2)

Max.

Unit

ΔICC

Quiescent Power Supply Current

VCC = Max.

—

0.5

1.5

mA

TTL Inputs HIGH

VIN = 3.4V(3)

ICCD

Dynamic Power Supply

VCC = Max.

VIN = VCC

—

60

100

µA/

Current(4)

Outputs Open

VIN = GND

MHz

x

OE = GND

One Input Toggling

50% Duty Cycle

IC

Total Power Supply Current(6)

VCC = Max.

VIN = VCC

—

0.6

1.5

mA

Outputs Open

VIN = GND

fi = 10MHz

50% Duty Cycle

VIN = 3.4V

—

0.9

2.3

x

OE = GND

VIN = GND

One Bit Toggling

VCC = Max.

VIN = VCC

—

2.4

4.5(5)

Outputs Open

VIN = GND

fi = 2.5MHz

50% Duty Cycle

VIN = 3.4V

—

6.4

16.5(5)

x

OE = GND

VIN = GND

Sixteen Bits Toggling

NOTES:

1. For conditions shown as Min. or Max., 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 +

ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

ΔICC = 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)

NCP = Number of Clock Inputs at fCP

fi = Input Frequency

Ni = Number of Inputs at fi

POWER SUPPLY CHARACTERISTICS