4

INDUSTRIALTEMPERATURERANGE

IDT74FST163233

16-BIT 2:1 MUX/DEMUX SWITCH

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

—

30

40

µA/

Current(4,5)

One Select Pin Toggling

VIN = GND

MHz/

50% Duty Cycle

Select

ICCD

Dynamic Power Supply

VCC = Max.

VIN = VCC

—

120

160

µA/

Current(4,5)

One Test Pin Toggling

VIN = GND

MHz/

50% Duty Cycle

Test

IC

Total Power Supply Current(6)

VCC = Max.

VIN = VCC

—

0.3

0.4

mA

One Select Pin Toggling

VIN = GND

fi = 10MHz

VIN = VCC

—

0.6

1.2

50% Duty Cycle

VIN = 3.4V

VCC = Max.

VIN = VCC

—

0.6

0.8

Two Select Pins Toggling

VIN = GND

fi = 10MHz

VIN = VCC

—

1.1

2.3

50% Duty Cycle

VIN = 3.4V

POWER SUPPLY CHARACTERISTICS

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. TA = –40°C to +85°C

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. Switch inputs do not contribute to

ΔICC.

4. This parameter represents the current required to switch the internal capacitance of the control inputs at the specified frequency.

Switch inputs generate no significant power supply currents as they transition. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.

5. CPD = ICCD/VCC

CPD = Power Dissipation Capacitance

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC +

ΔICC DHNT + ICCD (fiN)

ICC = Quiescent Current

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)

fi = Control Input Frequency

N = Number of Control Inputs Toggling at fi