54HC4049 데이터 시트보기 (PDF) - MAXWELL TECHNOLOGIES

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54HC4049

CMOS Logic Hex Inverting Buffers

MAXWELL TECHNOLOGIES 

54HC4049

CMOS Logic Hex

Inverting Buffers

54HC4049

FEATURES:

• High speed CMOS logic hex inverting Buffers

• RAD-PAK® radiation hardened against natural space radia-

tion

• Single Event Effects:

- SEL: > 120 MeV/mg/cm2

• Total dose hardness:

• - > 100 Krad (Si), depending upon space mission

• Package:

-16 Pin RAD-PAK® Flat Pack

• Typical propagation delay:

- 6ns at VCC = 5V, CL = 15pF, TA = 25°C

• High-to-Low voltage level converter for up to VI = 16V

• Fanout (over temperature range)

-10 LSTTL loads (Standard Outputs)

-15 LSTTL loads (Bus Driver Outputs)

• Balanced propagation delay and transition times

• Significant power reduction compared to LSTTL logic ICs

• 2V to 6V operation

• High noise immunity

• -NIL = 30%, NIH = 30% of VCC at VCC = 5V

Logic Diagram

DESCRIPTION:

Maxwell Technologies' 54HC4049 high speed CMOS Logic

Hex Inverting Buffers features a greater than 100 krad(Si) total

dose tolerance, depending upon space misssion. These parts

have a modified input protection structure that enables them

to be used as logic level translators which will convert high-

level logic to a low-level logic while operating off the low-level

logic supply. For example, 15V input pulse levels can be

down-converted to 0V to 5V logic levels. The modified input

protection structure protects the input from negative electro-

static discharge. The 54HC4049 can be used as simple buff-

ers or inverters without level translation.

Maxwell Technologies' patented RAD-PAK® packaging technol-

ogy incorporates radiation shielding in the microcircuit pack-

age. It eliminates the need for box shielding while providing

the required radiation shielding for a lifetime in orbit or space

mission. In a GEO orbit, RAD-PAK provides greater than 100

krad (Si) radiation dose tolerance. This product is available

with screening up to Class S.

1000589

12.20.01 Rev1

(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com

All data sheets are subject to change without notice 1

©2001 Maxwell Technologies.

All rights reserved.

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