IDT54FCT139TSOB データシートの表示（PDF） - Integrated Device Technology

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IDT54FCT139TSOB

FAST CMOS DUAL 1-OF-4 DECODER WITH ENABLE

Integrated Device Technology 

IDT54/74FCT139T/AT/CT

FAST CMOS DUAL 1-OF-4 DECODER WITH ENABLE

MILITARY AND COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Test Conditions(1)

Min. Typ.(2) Max.

∆ICC

Quiescent Power Supply Current VCC = Max.

TTL Inputs HIGH

VIN = 3.4V(3)

— 0.5 2.0

ICCD

Dynamic Power Supply

Current(4)

VCC = Max.

Outputs Open

VIN = VCC

VIN = GND

— 0.15 0.3

One Bit Toggling

50% Duty Cycle

IC

Total Power Supply Current(6)

VCC = Max.

VIN = VCC

— 1.5 4.0

Outputs Open

VIN = GND

fo = 10MHz

50% Duty Cycle

VIN = 3.4V

— 1.8 5.0

One Input and

VIN = GND

One Output Toggling

VCC = Max.

VIN = VCC

—

3.0 7.0(5)

Outputs Open

VIN = GND

fo = 10MHz

50% Duty Cycle

VIN = 3.4V

—

3.5 9.0(5)

One Input Toggling

VIN = GND

on Each Decoder

Two Outputs Toggling

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

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 (fONO)

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)

fO = Output Frequency

NO = Number of Outputs at fO

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

Unit

mA

mA/

MHz

mA

2566 tbl 06

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

FCT139T

FCT139AT

FCT139CT

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Parameter

Description

Condition(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit

tPLH Propagation Delay

tPHL A0 or A1 to On

CL = 50pF

RL = 500Ω

1.5 9.0 1.5 12.0 1.5 5.9 1.5 7.8 1.5 5.0 1.5 6.2 ns

tPLH Propagation Delay

tPHL E to On

1.5 8.0 1.5 9.0 1.5 5.5 1.5 7.2 1.5 4.8 1.5 5.8 ns

NOTES:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

2566 tbl 07

6.4

3

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