Datasheet > TC74HCT646AP_07

TC74HCT646AP_07

更新时间： 2024-09-27 05:04:07

品牌	Logo	应用领域
东芝 - TOSHIBA		总线收发器
页数	文件大小	规格书
8页	321K
描述
Octal Bus Transceiver/Register (3-state)

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TC74HCT646AP_07 数据手册

TC74HCT646AP

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74HCT646AP

Octal Bus Transceiver/Register (3-state)

The TC74HCT646A is high speed CMOS OCTAL BUS

TRANSCEIVER/REGISTERs fabricated with silicon gate C²MOS

technology.

It achieves the high speed operation similar to equivalent

LSTTL while maintaining the CMOS low power dissipation.

Its inputs are compatible with TTL, NMOS, and CMOS output

voltage levels.

This device is bus transceiver with 3-state outputs, D-type

flip-flops, and control circuitry arranged for multiplexed

transmission of data directly from the internal registers.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Weight: 1.50 g (typ.)

Features (Note 1)(Note 2)

•

High speed: f

= 60 MHz (typ.) at V

= 5 V

max

Low power dissipation: I

= 4 μA (max) at Ta = 25°C

Compatible with TTL output: V = 2.0 V (min)

= 0.8 V (max)

•

Output drive capability: 15 LSTTL loads

Symmetrical output impedance: |I | = I

= 6 mA (min)

∼

−

Balanced propagation delays: t

pHL

pLH

Pin and function compatible with 74LS646

Note 1: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result.

Note 2: All floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull

down resistors.

Pin Assignment

2007-10-01

12 3 4 5 6 7 8

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