74LVTH646

更新时间： 2024-11-10 22:56:23

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	81K
描述
Low Voltage Octal Transceiver/Register with 3-STATE Outputs

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74LVTH646 数据手册

November 1999

Revised May 2000

74LVTH646

Low Voltage Octal Transceiver/Register

with 3-STATE Outputs

General Description

Features

■ Input and output interface capability to systems at

The LVTH646 consists of registered bus transceiver cir-

cuits, D-type flip-flops, and control circuitry providing multi-

plexed transmission of data directly from the input bus or

from the internal storage registers. Data on the A or B bus

will be loaded into the respective registers on the LOW-to-

HIGH transition of the appropriate clock pin (CPAB or

CPBA). (See Functional Description)

5V V_CC

■ Bushold data inputs eliminate the need for external

pull-up resistors to hold unused inputs

■ Live insertion/extraction permitted

■ Power Up/Down high impedance provides glitch-free

bus loading

The LVTH646 data inputs include bushold, eliminating the

need for external pull-up resistors to hold unused inputs.

■ Outputs source/sink −32 mA/+64 mA

■ Functionally compatible with the 74 series 646

■ Latch-up performance exceeds 500 mA

The bus transceivers are designed for low-voltage (3.3V)

V_CCapplications, but with the capability to provide a TTL

interface to a 5V environment. The LVTH646 is fabricated

with an advanced BiCMOS technology to achieve high

speed operation similar to 5V ABT while maintaining low

power dissipation.

Ordering Code:

Order Number Package Number

Package Description

74LVTH646WM

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide

74LVTH646MTC

MTC24

24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

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

Logic Symbols

IEEE/IEC

DS012017

www.fairchildsemi.com

12 3 4 5 6 7 8

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与74LVTH646相关器件

型号	品牌	获取价格	描述	数据表
74LVTH646MTC	FAIRCHILD	获取价格	Low Voltage Octal Transceiver/Register with 3-STATE Outputs
74LVTH646MTCX	ETC	获取价格	Single 8-bit Bus Transceiver
74LVTH646MTCX_NL	FAIRCHILD	获取价格	暂无描述
74LVTH646WM	FAIRCHILD	获取价格	Low Voltage Octal Transceiver/Register with 3-STATE Outputs
74LVTH646WMX	ETC	获取价格	Single 8-bit Bus Transceiver
74LVTH652	FAIRCHILD	获取价格	Low Voltage Octal Transceiver/Register with 3-STATE Outputs
74LVTH652MTC	FAIRCHILD	获取价格	Low Voltage Octal Transceiver/Register with 3-STATE Outputs
74LVTH652MTCX	ETC	获取价格	Single 8-bit Bus Transceiver
74LVTH652MTCX_NL	FAIRCHILD	获取价格	Registered Bus Transceiver, LVT Series, 1-Func, 8-Bit, True Output, BICMOS, PDSO24, 4.40 M
74LVTH652WM	FAIRCHILD	获取价格	Low Voltage Octal Transceiver/Register with 3-STATE Outputs