PI74FCT273T datasheet(3/6 Pages) PERICOM

Part #	PI74FCT273T

Description	Fast CMOS Octal D Flip-Flop with Master Reset

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Manufacturer	PERICOM [Pericom Semiconductor Corporation]

Direct Link	http://www.pericom.com

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3 / 6 page

3

PS2013B

10/07/04

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PI74FCT273T

Octal D Flip-Flop with Master Reset

Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min.

Typ(2)

Max.

Units

ICC

Quiescent Power

VCC = Max.

VIN = GND or VCC

0.1

500

µA

Supply Current

∆ICC

Supply Current per

VCC = Max.

VIN = 3.4V(3)

0.5

2.0

mA

per Input @ TTL HIGH

ICCD

Supply Current per

VCC = Max., Outputs Open

VIN = VCC

0.15

0.25

mA/

Input per MHx(4)

MR = Vcc, One Input Toggling VIN = GND

MHz

50% Duty Cycle

IC

Total Power Supply

VCC = Max., Outputs Open

VIN = VCC

1.5

3.5(5)

mA

Current(6)

fCP = 10 MHZ, 50% Duty Cycle VIN = GND

MR = Vcc, 50% Duty Cycle

VIN = 3.4V

2.0

3.5(5)

One Bit toggling at fI = 5 MHZ VIN = GND

VCC = Max., Outputs Open

VIN = VCC

3.8

7.3(5)

fCP = 10 MHZ, 50% Duty Cycle VIN = GND

MR = VCC, 50% Duty Cycle

VIN = 3.4V

Eight Bits toggling at

VIN = GND

6.0

16.3(5)

fI = 2.5 MHZ, 50% Duty Cycle

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 +

∆ICC DHNT + ICCD (fCP/2 + fINI)

ICC = Quiescent Current

∆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)

fI = Input Frequency

NI = Number of Inputs at fI

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

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PI74FCT273T Datasheet(PDF) 3 Page - Pericom Semiconductor Corporation

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