74VHCT138A

更新时间： 2024-11-23 22:56:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
8页	67K
描述
3 TO 8 LINE DECODER INVERTING

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数据手册

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74VHCT138A 数据手册

74VHCT138A

3 TO 8 LINE DECODER (INVERTING)

PRELIMINARY DATA

■

HIGH SPEED:t_PD=7.6ns (TYP.) atV_CC= 5V

LOW POWER DISSIPATION:

I_CC=4 µA (MAX.) at T_A=25 ^oC

COMPATIBLEWITH TTL OUTPUTS:

V_IH=2V (MIN), V_IL= 0.8V(MAX)

POWERDOWN PROTECTIONON INPUTS&

OUTPUTS

SYMMETRICAL OUTPUT IMPEDANCE:

|I_OH| = I_OL= 8 mA (MIN)

BALANCEDPROPAGATIONDELAYS:

t_PLHt_PHL

■

SOP

TSSOP

ORDER CODES

TUBE

PACKAGE

SOP

T & R

74VHCT138AM 74VHCT138AMTR

74VHCT138ATTR

TSSOP

OPERATING VOLTAGERANGE:

V_CC(OPR)= 4.5V to 5.5V

PIN AND FUNCTION COMPATIBLEWITH

74 SERIES138

G2A or G2B is held high, the decoding function is

inhibited and all the 8 outputsgo to high.

Three enable inputs are provided to ease

cascade connection and application of address

decodersfor 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.

■

IMPROVED LATCH-UP IMMUNITY

LOWNOISE:V_OLP= 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-layermetal wiring C²MOS 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

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/8

March 2000

12 3 4 5 6 7 8

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与74VHCT138A相关器件

型号	品牌	获取价格	描述	数据表
74VHCT138A_04	FAIRCHILD	获取价格	3 TO 8 LINE DECODER (INVERTING)
74VHCT138A_07	FAIRCHILD	获取价格	3-to-8 Decoder/Demultiplexer
74VHCT138AFT	TOSHIBA	获取价格	CMOS Logic ICs - 74VHC Series
74VHCT138AM	STMICROELECTRONICS	获取价格	3 TO 8 LINE DECODER INVERTING
74VHCT138AM	FAIRCHILD	获取价格	3-to-8 Decoder/Demultiplexer
74VHCT138AMTC	FAIRCHILD	获取价格	3-to-8 Decoder/Demultiplexer
74VHCT138AMTC	ONSEMI	获取价格	3-8 解码器/信号分离器
74VHCT138AMTCX	FAIRCHILD	获取价格	3-To-8-Line Demultiplexer
74VHCT138AMTCX	ONSEMI	获取价格	3-8 解码器/信号分离器
74VHCT138AMTCX_NL	FAIRCHILD	获取价格	Decoder/Driver, AHCT/VHCT Series, Inverted Output, CMOS, PDSO16, 4.40 MM, MO-153AB, TSSOP-