5

IDT74FCT164245T

FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR

INDUSTRIALTEMPERATURERANGE

Symbol

Parameter

Test Conditions(1)

Min.

Typ.(2)

Max.

Unit

ΔICC

Quiescent Power Supply Current

VCC1 = Max., VCC2 = Max.

—

12

30

μA

TTL Inputs HIGH

VIN = VCC2 - 0.6V(3)

ICCD

Dynamic Power Supply

VCC1 = Max., VCC2 = Max.

VIN = VCC2

—75

120

μA/

Current(4)

Outputs Open

VIN = GND

MHz

xOE = xDIR = GND

One Input Togging

50% Duty Cycle

IC

Total Power Supply Current(6)

VCC1 = Max., VCC2 = Max.

VIN = VCC2 - 0.6V

—

1.2

4.7

mA

Outputs Open

VIN = GND

fI = 10MHz

50% Duty Cycle

xOE = xDIR = GND

One Bit Toggling

VCC1 = Max., VCC2 = Max.

VIN = VCC2 - 0.6V

—

3.5

8.5(5)

Outputs Open

VIN = GND

fI = 2.5MHz

50% Duty Cycle

xOE = xDIR = GND

Sixteen Bits Toggling

POWER SUPPLY CHARACTERISTICS

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 VCC1 = 5V, VCC2 = 3.3V, +25°C ambient.

3. Per TTL driven input. 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 = ICC1 + ICC2

+ ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)

ICC1 = Quiescent Current (ICC1L, ICC1H and ICC1Z)

ICC2 = Quiescent Current (ICC2L, ICC2H and ICC2Z)

ΔICC = Power Supply Current for a TTL High Input

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