PI49FCT3805CS datasheet(4/9 Pages) PERICOM

4 / 9 page

PS7007B

01/13/99

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PI49FCT3805/3806

3.3V Fast CMOS Buffer/Clock Driver

PowerSupplyCharacteristics

Parameters Description

Test Conditions

(1)

Min.

Typ

(2)

Max.

Units

ICC

Quiescent Power

VCC = Max.

VIN = GND or VCC

—3

µA

Supply Current

∆I

Supply Current per

VCC = Max.

VIN = VCC – 0.6V

(3)

—

2.0

300

µA

Inputs @ TTL HIGH

ICCD

Supply Current per

VCC = Max.,

VIN = VCC

—

0.08

0.16

mA/

Input per MHz

(4)

Outputs Open

VIN = GND

MHZ

OEA or OEB = GND

Per Output Toggling

50% Duty Cycle

Total Power Supply

VCC = Max.,

VIN = VCC

—

3.3

9.0(5)

Current(6)

Outputs Open

VIN=GND

fO = 10 MHZ

50% Duty Cycle

VIN = VCC – 0.6V

—

3.3

10.0(5)

OEA or OEB = GND

VIN = GND

Mon. Outputs Toggling

VCC = Max.,

VIN = VCC

—

1.8

6.0(5)

Outputs Open

VIN = GND

fO = 2.5 MHZ

50% Duty Cycle

VIN = VCC – 0.6V

—

1.8

7.0(5)

OEA or OEB = GND

VIN = GND

Eleven Outputs 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 = 3.3V, +25°C ambient.

3. Per TTL driven input (VIN = VCC 0.6V); 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 IC formula. These limits are guaranteed but not tested.

6. IC

= IQUIESCENT + IINPUTS + IDYNAMIC

= ICC + ∆ICC DHNT + ICCD (fONO)

ICC = Quiescent Current

∆ICC = Power Supply Current for a TTL High Input (VIN = VCC 0.6V)

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)

= Output Frequency

NO = Number of Outputs at fO

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

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