74VHCT138A datasheet(1/8 Pages) STMICROELECTRONICS

部品番号	74VHCT138A

部品情報	3 TO 8 LINE DECODER INVERTING

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74VHCT138A

3 TO 8 LINE DECODER (INVERTING)

PRELIMINARY DATA

March 2000

s

HIGH SPEED: tPD = 7.6 ns (TYP.) at VCC =5V

s

LOW POWER DISSIPATION:

ICC =4

µA (MAX.) at TA =25 oC

s

COMPATIBLE WITH TTL OUTPUTS:

VIH =2V (MIN), VIL = 0.8V (MAX)

s

POWER DOWN PROTECTION ON INPUTS &

OUTPUTS

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH|=IOL = 8 mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH

≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC (OPR) = 4.5V to 5.5V

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 138

s

IMPROVED LATCH-UP IMMUNITY

s

LOW NOISE: VOLP = 0.8V (Max.)

DESCRIPTION

The 74VHCT138A is an advanced high-speed

CMOS 3 TO 8 LINE DECODER (INVERTING)

fabricated with sub-micron silicon gate and

double-layer metal wiring C

2MOS technology.

If the device is enabled, 3 binary select inputs (A,

B and C) determine which one of the outputs will

go low. If enable input G1 is held low or either

G2A or G2B is held high, the decoding function is

inhibited and all the 8 outputs go to high.

Three enable inputs are provided to ease

cascade connection and application of address

decoders for memory systems.

Power down protection is provided on all inputs

and outputs and 0 to 7V can be accepted on

inputs with no regard to the supply voltage. This

device can be used to interface 5V to 3V.

All inputs

and

outputs are

equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

®

SOP

TSSOP

ORDER CODES

PACKAGE

T UBE

T & R

SOP

74VHCT138AM

74VHCT138AMTR

TSSOP

74VHCT138ATTR

1/8

同様の部品番号 - 74VHCT138A

メーカー	部品番号	データシート	部品情報
Fairchild Semiconductor	74VHCT138A	69Kb / 6P	3-to-8 Decoder/Demultiplexer
Fairchild Semiconductor	74VHCT138A	354Kb / 9P	3-to-8 Decoder/Demultiplexer
STMicroelectronics	74VHCT138A	304Kb / 12P	3 TO 8 LINE DECODER (INVERTING)
ON Semiconductor	74VHCT138A	352Kb / 11P	3-to-8 Decoder/Demultiplexer May 2007 Rev. 1.2
Toshiba Semiconductor	74VHCT138AFT	186Kb / 8P	CMOS Digital Integrated Circuits Silicon Monolithic 2017-02-22 Rev.3.0

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同様の説明 - 74VHCT138A

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	74VHCT138A	304Kb / 12P	3 TO 8 LINE DECODER (INVERTING)
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