PI49FCT2805BTS datasheet(4/8 Pages) PERICOM

4 / 8 page

PS7006C

06/27/01

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PI49FCT805T

PI49FCT2805T/PI49FCT806T

Fast CMOS Buffer/Clock Driver

PowerSupplyCharacteristics

Parameters Description

TestConditions(1)

Min.

Typ(2)

Max.

Units

ICC

Quiescent Power

VCC=Max.

VIN=GNDorVCC

330

µA

Supply Current

∆ICC

Supply Current per

VCC=Max.

VIN=3.4V(3)

0.5

2.0

Input@TTLHIGH

ICCD

Supply Current per

VCC=Max.,

VIN=VCC

0.15

0.25

mA/

Input per MHz(4)

Outputs Open

VIN=GND

MHz

OEA=OEB=GND

Per Output Toggling

50% Duty Cycle

Total Power Supply

VCC=Max.,

VIN=VCC

7.7

14.0(5)

Current(6)

Outputs Open

VIN=GND

fI = 10 MHZ

50% Duty Cycle

VIN=3.4V

8.0

15.0(5)

OEA=OEB=GND

VIN=GND

Five Outputs Toggling

VCC=Max.,

VIN=VCC

4.3

8.4(5)

Outputs Open

VIN=GND

fI=2.5MHZ

50% Duty Cycle

OEA=OEB=GND

VIN=3.4V

4.8

10.4(5)

Eleven Outputs

VIN=GND

Toggling

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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