74VCX164245

更新时间： 2024-11-20 22:45:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	91K
描述
Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs

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74VCX164245 数据手册

March 2000

Revised March 2000

74VCX164245

Low Voltage 16-Bit Dual Supply Translating Transceiver

with 3-STATE Outputs

General Description

Features

■ Bidirectional interface between busses ranging from

The VCX164245 is a dual supply, 16-bit translating trans-

ceiver that is designed for 2 way asynchronous communi-

cation between busses at different supply voltages by

providing true signal translation. The supply rails consist of

V_CCB, which is the higher potential rail operating at 2.3 to

1.65V to 3.6V

■ Supports Live Insertion and Withdrawal (Note 1)

■ Static Drive (I_OH/I_OL

)

±24 mA @ 3.0V V_CC

±18 mA @ 2.3V V_CC

±6 mA @ 1.65V V_CC

3.6V and V_CCA, which is the lower potential rail operating at

1.65 to 2.7V. (V_CCAmust be less than or equal to V_CCBfor

proper device operation.) This dual supply design allows

for translation from 1.8V to 2.5V busses to busses at a

higher potential, up to 3.3V.

■ Uses patented noise/EMI reduction circuitry

■ Functionally compatible with 74 series 16245

■ Latchup performance exceeds 300 mA

■ ESD performance:

The Transmit/Receive (T/R) input determines the direction

of data flow. Transmit (active-HIGH) enables data from A

Ports to B Ports; Receive (active-LOW) enables data from

B Ports to A Ports.The Output Enable (OE) input, when

HIGH, disables both A and P Ports by placing them in a

High-Z condition. The A Port interfaces with the lower volt-

age bus (1.8 − 2.5V); The B Port interfaces with the higher

voltage bus (2.7 − 3.3V). Also the VCX164245 is designed

Human Body Model >2000V

Machine model >200V

so that the control pins (T/R_n, OE_n) are supplied by V_CCB

Note 1: To ensure the high impedance state during power up or power

down, OE should be tied to V

through a pull up resistor. The minimum

CCB

The 74VCX164245 is suitable for mixed voltage applica-

tions such as notebook computers using a 1.8V CPU and

3.3V peripheral components. It is fabricated with an

Advanced CMOS technology to achieve high speed opera-

tion while maintaining low CMOS power dissipation.

value of the resistor is determined by the current sourcing capability of the

driver.

Ordering Code:

Order Number

Package Number

Package Description

74VCX164245MTD

MTD48

48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Diagram

Pin Descriptions

Pin Names

Description

OE_n

Output Enable Input (Active LOW)

Transmit/Receive Input

T/R_n

A₀–A₁₅

B₀–B₁₅

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

Quiet Series is a trademark of Fairchild Semiconductor Corporation.

DS500159

www.fairchildsemi.com

12 3 4 5 6 7 8

中文翻译

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与74VCX164245相关器件

型号	品牌	获取价格	描述	数据表
74VCX164245G	FAIRCHILD	获取价格	Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74VCX164245GX	FAIRCHILD	获取价格	Bus Transceiver, ALVC/VCX/A Series, 2-Func, 8-Bit, True Output, CMOS, PBGA54, 5.50 MM, PLA
74VCX164245MTD	FAIRCHILD	获取价格	Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74VCX164245MTD_NL	FAIRCHILD	获取价格	Bus Transceiver, ALVC/VCX/A Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, 6.10 MM, MO-
74VCX164245MTDX	FAIRCHILD	获取价格	Bus Transceiver, ALVC/VCX/A Series, 2-Func, 8-Bit, True Output, CMOS, PDSO48, 6.10 MM, MO-
74VCX164245MTDX	ONSEMI	获取价格	带3态输出的低电压16位双通道电源转换收发器
74VCX16500	FAIRCHILD	获取价格	Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs
74VCX16500_04	FAIRCHILD	获取价格	Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs
74VCX16500MTD	FAIRCHILD	获取价格	Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs
74VCX16500MTDX	FAIRCHILD	获取价格	18-Bit Bus Transceiver

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