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FCT162240AT
(Rev.:2002)

RIVER FAST CMOS 16-BIT BUFFER/LINE DRIVER

Integrated Device Technology 

IDT74FCT162240AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER

INDUSTRIAL TEMPERATURE RANGE

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Test Conditions(1)

Min.

∆ICC

Quiescent Power Supply Current

VCC = Max.

—

TTL Inputs HIGH

VIN = 3.4V(3)

ICCD

Dynamic Power Supply

VCC = Max.

VIN = VCC

—

Current(4)

Outputs Open

xOE = GND

VIN = GND

One Input Toggling

50% Duty Cycle

IC

Total Power Supply Current(6)

VCC = Max.

Outputs Open

fi = 10MHz

VIN = VCC

—

VIN = GND

50% Duty Cycle

VIN = 3.4V

—

xOE = GND

VIN = GND

One Bit Toggling

VCC = Max.

Outputs Open

fi = 2.5MHz

VIN = VCC

—

VIN = GND

50% Duty Cycle

VIN = 3.4V

—

xOE = 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 + ∆ICC DHNT + ICCD (fCPNCP/2 + fiNi)

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)

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

Typ.(2)

0.5

60

0.6

0.9

2.4

6.4

Max.

1.5

100

1.5

2.3

4.5(5)

16.5(5)

Unit

mA

µA/

MHz

mA

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

Symbol

tPLH

tPHL

tPZH

tPZL

tPHZ

tPLZ

tSK(o)

Parameter

Propagation Delay

xAx to xYx

Output Enable Time

Output Disable Time

Output Skew(3)

Condition(1)

CL = 50pF

RL = 500Ω

FCT162240AT

Min.(2)

Max.

1.5

4.8

1.5

6.2

1.5

5.6

—

0.5

FCT162240CT

Min.(2)

Max.

Unit

1.5

3.4

ns

1.5

4.4

ns

1.5

4.1

ns

—

0.5

ns

NOTES:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

4

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