PI74FCT3244L(2004) データシートの表示（PDF） - Pericom Semiconductor

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PI74FCT3244L
(Rev.:2004)

3.3V 8-Bit Buffer/Line Driver

Pericom Semiconductor 

PI74FCT3244

3.3V 8-Bit Buffer/Line Driver

Power Supply Characteristics

Parameters

Description

Test Conditions(1)

Min. Typ.(2)

ICC

Quiescent Power Sup-

ply Current

VCC = Max.

VIN = GND or VCC

0.1

ΔICC

Quiescent Power

Supply Current, TTL

Inputs HIGH

VCC = Max.

VIN = VCC – 0.6V(3)

VCC = Max.,

ICCD

Dynamic Power Sup-

ply(4)

Outputs Open

OEX = GND

One Bit Toggling

VIN = VCC

VIN = GND

95

50% Duty Cycle

VCC = Max.,

Outputs Open

fI = 10 MHZ

50% Duty Cycle

VIN = VCC – 0.6V

VIN = GND

0.97

OEX = GND

IC

Total Power Supply

Current(6)

One Bit Toggling

VCC = Max.,

Outputs Open

fI = 2.5 MHZ

50% Duty Cycle

VIN = VCC – 0.6V

VIN = GND

1.9

OEX = GND

8 Bits 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; 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 =IQUIECSENT + IINPUTS + IDYNAMIC

IC = ICC + ΔICC DHNT + ICCD (fCP/2 + fINI)

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

ΔICC = Power Supply Current for a TTL High Input

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)

NCP = Number of Clock Inputs at fCP

fI = Input Frequency

NI = Number of Inputs at fI

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

Max.

10

500

100

2.3

4.7(5)

Units

ΜA

µA

µA/

MHz

mA

4

PS7067G

08/02/04

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