PI74FCT541ATQE Просмотр технического описания (PDF) - Pericom Semiconductor

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PI74FCT541ATQE

Fast CMOS Non-Inverting Octal Buffer/Line Drivers

Pericom Semiconductor 

PI74FCT244T/2244T

PI74FCT541T/2541T

Fast CMOS Non-Inverting Octal Buffer/Line Drivers

Power Supply Characteristics

Parameters Description

ICC

Quiescent Power

Supply Current

ΔICC

Supply Current per

Input @ TTL HIGH

ICCD

Supply Current per

Input per MHz(4)

IC

Total Power Supply

Current(6)

Test Conditions(1)

Min.

VCC = Max.

VIN = GND or VCC

VCC = Max.

VIN = 3.4V(3)

VCC = Max.,

Outputs Open

OEA = OEB = GND or

OEA = GND, OEB = VCC

One Bit Toggling

50% Duty Cycle

VCC = Max.,

Outputs Open

fI = 10 MHZ

50% Duty Cycle

OEA = OEB = GND or

OEA = GND, OEB = VCC

One Bit Toggling

VCC = Max.,

Outputs Open

fI = 2.5 MHZ

50% Duty Cycle

OEA = OEB = GND or

OEA = GND, OEB = VCC

Eight Bits Toggling

VIN = VCC

VIN = GND

VIN = VCC

VIN = GND

VIN = 3.4V

VIN = GND

VIN = VCC

VIN = GND

VIN = 3.4V

VIN = GND

Typ(2)

0.1

0.5

0.15

1.5

1.8

3.0

5.0

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

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 (fCP/2 + fINI)

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)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

fI = Input Frequency

NI = Number of Inputs at fI

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

Max. Units

500

μA

2.5

mA

0.25

mA/

MHz

3.5(5)

4.5(5)

mA

6.0(5)

14.0(5)

08-0291

4

PS2011G

11/10/08

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