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PI29FCT52T

Fast CMOS Registered Transceivers

Pericom Semiconductor 

PI29FCT52/53T

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Power Supply Characteristics

Parameters Description

Test Conditions(1)

Min. Typ(2) Max. Units

ICC

∆ICC

ICCD

Quiescent Power

Supply Current

Supply Current per

Input @ TTL HIGH

Supply Current per

Input per MHz(4)

IC

Total Power Supply

Current(6)

VCC = Max.

VCC = Max.

VCC = Max.,

Outputs Open

OEA or OEB = GND

One Input Toggling

50% Duty Cycle

VCC = Max.,

Outputs Open

fCP = 10 MHZ

50% Duty Cycle

OEA or OEB = GND

fI = 5 MHZ

One Bit Toggling

VCC = Max.,

Outputs Open

fCP = 10 MHZ

50% Duty Cycle

OEA or OEB = GND

Eight Bits Toggling

fI = 2.5 MHZ

50% Duty Cycle

VIN = GND

or VCC

VIN = 3.4V(3)

VIN = VCC

VIN = GND

VIN = VCC

VIN = GND

VIN = 3.4V

VIN = GND

VIN = VCC

VIN = GND

VIN = 3.4V

VIN = GND

0.1 500 µA

0.5 2.0 mA

0.15 0.25 mA/

MHz

1.5 3.5(5) mA

2.0 5.5(5)

3.8 7.3(5)

6.0 16.3(5)

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.

4

PS2001A 03/08/96

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