74ABT16646

更新时间： 2024-10-27 22:45:55

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
9页	86K
描述
16-Bit Transceivers and Registers with 3-STATE Outputs

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数据手册

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74ABT16646 数据手册

October 1993

Revised November 1999

74ABT16646

16-Bit Transceivers and Registers with 3-STATE Outputs

General Description

Features

The ABT16646 consists of bus transceiver circuits with 3-

STATE, D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the input bus

or from the internal registers. Data on the A or B bus will be

clocked into the registers as the appropriate clock pin goes

to a high logic level. Control OE and direction pins are pro-

vided to control the transceiver function. In the transceiver

mode, data present at the high impedance port may be

stored in either the A or the B register or in both. The select

controls can multiplex stored and real-time (transparent

mode) data. The direction control determines which bus

will receive data when the enable control OE is Active

LOW. In the isolation mode (control OE HIGH), A data may

be stored in the B register and/or B data may be stored in

the A register.

■ Independent registers for A and B buses

■ Multiplexed real-time and stored data

■ A and B output sink capability of 64 mA, source

capability of 32 mA

■ Guaranteed latchup protection

■ High impedance glitch free bus loading during entire

power up and power down cycle

■ Nondestructive hot insertion capability

Ordering Code:

Order Number

74ABT16646CSSC

74ABT16646CMTD

Package Number

MS56A

Package Description

56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300” Wide

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

MTD56

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

Logic Symbol

Connection Diagram

Pin Descriptions

Pin Names

Description

A₀–A₁₅

B₀–B₁₅

Data Register A Inputs/

3-STATE Outputs

Data Register B Inputs/

3-STATE Outputs

CPAB_n, CPBA_n

SAB_n, SBA_n

OE_n

Clock Pulse Inputs

Select Inputs

Output Enable Input

Direction Control Input

DIR

DS011644

www.fairchildsemi.com

12 3 4 5 6 7...9

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与74ABT16646相关器件

型号	品牌	获取价格	描述	数据表
74ABT16646CMTD	FAIRCHILD	获取价格	16-Bit Transceivers and Registers with 3-STATE Outputs
74ABT16646CMTDX	FAIRCHILD	获取价格	Dual 8-bit Bus Transceiver
74ABT16646CSSC	FAIRCHILD	获取价格	16-Bit Transceivers and Registers with 3-STATE Outputs
74ABT16646CSSC_NL	FAIRCHILD	获取价格	暂无描述
74ABT16646CSSCX	FAIRCHILD	获取价格	Dual 8-bit Bus Transceiver
74ABT16646CSSCX_NL	FAIRCHILD	获取价格	Registered Bus Transceiver, ABT Series, 2-Func, 8-Bit, True Output, BICMOS, PDSO56, 0.300
74ABT16646DGG	NXP	获取价格	16-bit bus transceiver/register 3-State
74ABT16646DGG,118	NXP	获取价格	74ABT16646DGG
74ABT16646DGGRE4	TI	获取价格	16-BIT BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
74ABT16646DGGRG4	TI	获取价格	ABT SERIES, DUAL 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO56, GREEN, PLASTIC, TSSOP-