74VHCT240ASJX_NL

更新时间： 2024-11-04 13:04:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器
页数	文件大小	规格书
7页	88K
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数据手册

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74VHCT240ASJX_NL 数据手册

March 1997

Revised March 1999

74VHCT240A

Octal Buffer/Line Driver with 3-STATE Outputs

due to mismatched supply and input/output voltages. This

General Description

device can be used to interface 5V to 3V systems and two

supply systems such as battery back up.

Note 1: Outputs in OFF-State

The VHCT240A is an advanced high speed CMOS octal

bus transceiver fabricated with silicon gate CMOS technol-

ogy. It achieves high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low

power dissipation. The VHCT240A is an inverting 3-STATE

buffer having two active-LOW output enables. This device

is designed to be used as 3-STATE memory address driv-

ers, clock drivers, and bus oriented transmitter/receivers.

Features

■ High Speed:

t_PD= 5.6 ns (typ) at V_CC= 5V

■ Power down protection is provided on inputs and

outputs

Protection circuits ensure that 0V to 7V can be applied to

the input and output (Note 1) pins without regard to the

supply voltage. These circuits prevent device destruction

■ Low power dissipation:

I_CC= 4 µA (max) @ T_A= 25°C

■ Pin and function compatible with 74HCT240

Ordering Code:

Order Number

74VHCT240AM

74VHCT240ASJ

74VHCT240AMTC

74VHCT240AN

Package Number

M20B

Package Description

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

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

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

20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

M20D

MTC20

N20A

Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

OE₁, OE₂

Description

3-STATE Output Enable

I₀–I₇

Inputs

O₀–O₇

Outputs 3-STATE Outputs

DS500002.prf

www.fairchildsemi.com

12 3 4 5 6 7

中文翻译

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