74VHCT245A

更新时间： 2024-11-03 22:56:27

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		总线收发器
页数	文件大小	规格书
9页	70K
描述
OCTAL BUS TRANSCEIVER 3-STATE

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中文翻译

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数据手册

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74VHCT245A 数据手册

74VHCT245A

OCTAL BUS

TRANSCEIVER (3-STATE)

PRELIMINARY DATA

■

HIGH SPEED:t_PD=4.5ns (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

■

(Micro Package)

(TSSOPPackage)

ORDER CODES :

74VHCT245AM

74VHCT245AT

level of the DIR input. The enable input G can be

used to disable the device so that the busses are

effectively isolated.

OPERATING VOLTAGERANGE:

V_CC(OPR)= 4.5V to 5.5V

PIN AND FUNCTION COMPATIBLEWITH

74 SERIES245

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= 0.9V(Max.)

IT IS PROHIBITED TO APPLY A SIGNAL TO A

TERMINAL WHEN IT IS IN OUTPUT MODE

AND WHEN A BUS TERMINAL IS FLOATING

(HIGH IMPEDANCE STATE) IT IS REQUESTED

TO FIX THE INPUT LEVEL BY MEANS OF

EXTERNAL PULL DOWN OR PULL UP

RESISTOR.

DESCRIPTION

The 74VHCT245A is an advanced high-speed

CMOS OCTAL BUS TRANSCEIVER (3-STATE)

fabricated with sub-micron silicon gate and

double-layermetal wiring C²MOS technology.

This IC is intended for two-way asynchronous

communication between data busses; the

direction of data trasmission is determined by the

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/9

August 1999

12 3 4 5 6 7...9

中文翻译

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与74VHCT245A相关器件

型号	品牌	获取价格	描述	数据表
74VHCT245A_04	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER (3-STATE)
74VHCT245A_07	FAIRCHILD	获取价格	74VHCT245A Octal Buffer/Line Driver with 3-STATE Outputs
74VHCT245A_99	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHCT245AFT	TOSHIBA	获取价格	74VHC Series
74VHCT245AM	STMICROELECTRONICS	获取价格	OCTAL BUS TRANSCEIVER 3-STATE
74VHCT245AM	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHCT245AM	ONSEMI	获取价格	带 3 态输出的八路缓冲器/线路驱动器
74VHCT245AMTC	ONSEMI	获取价格	带 3 态输出的八路缓冲器/线路驱动器
74VHCT245AMTC	FAIRCHILD	获取价格	Octal Buffer/Line Driver with 3-STATE Outputs
74VHCT245AMTCX	ONSEMI	获取价格	带 3 态输出的八路缓冲器/线路驱动器