74VHC238T

更新时间： 2024-11-05 22:56:23

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

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中文翻译

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数据手册
替代型号

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74VHC238T 数据手册

74VHC238

3 TO 8 LINE DECODER

■

HIGH SPEED:t_PD=5.5ns (TYP.) at V_CC= 5V

LOW POWER DISSIPATION:

I_CC=4 µA (MAX.) at T_A=25 ^oC

HIGH NOISEIMMUNITY:

■

V_NIH= V_NIL=28% V_CC(MIN.)

POWERDOWN PROTECTIONON INPUTS

SYMMETRICAL OUTPUT IMPEDANCE:

|I_OH| = I_OL= 8 mA (MIN)

BALANCEDPROPAGATIONDELAYS:

t_PLHt_PHL

■

(Micro Package)

(TSSOPPackage)

ORDER CODES :

74VHC238M

74VHC238T

■

OPERATING VOLTAGERANGE:

G2A or G2B is held high, decoding function is

inhibited and all the 8 outputsgo to low.

Three enable inputs are provided to ease

cascade connection and application of this

address decoders for memory systems.

V_CC(OPR)= 2V to 5.5V

PIN AND FUNCTION COMPATIBLEWITH

74 SERIES238

IMPROVED LATCH-UP IMMUNITY

Power down protection is provided on all inputs

and 0 to 7V can be accepted on inputs with no

regard to the supply voltage. This device can be

used to interface5V to 3V.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

DESCRIPTION

The 74VHC238 is an advanced high-speed

CMOS 3 TO 8 LINE DECODER fabricated with

sub-micron silicon gate and double-layer metal

wiring C²MOS technology.

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

B and C) determine which one of the outputs will

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

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/8

June 1999

12 3 4 5 6 7 8

中文翻译

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74VHC238T 替代型号

型号	品牌	替代类型	描述	数据表
SN74HCT138PWR	TI	功能相似	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
MC74HC138ADTR2G	ONSEMI	功能相似	1−of−8 Decoder/ Demultiplexer
SN74LVC138APW	TI	功能相似	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

与74VHC238T相关器件

型号	品牌	获取价格	描述	数据表
74VHC238TTR	STMICROELECTRONICS	获取价格	3 TO 8 LINE DECODER
74VHC240	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHC240	STMICROELECTRONICS	获取价格	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED
74VHC240_04	FAIRCHILD	获取价格	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (INVERTED)
74VHC240_07	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHC240FT	TOSHIBA	获取价格	74VHC Series
74VHC240M	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHC240M	ROCHESTER	获取价格	AHC/VHC SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20, 0.300 INCH, MS-013, SOIC-20
74VHC240M	STMICROELECTRONICS	获取价格	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED
74VHC240MSCX	TI	获取价格	IC AHC/VHC SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20, EIAJ TYPE1, PLASTIC, SSOP-2