TC74AC640FT datasheet(1/9 Pages) TOSHIBA

No de pièce	TC74AC640FT

Description	CMOS Digital Integrated Circuit Silicon Monolithic

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Fabricant	TOSHIBA [Toshiba Semiconductor]

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TC74AC245,640P/F/FT

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74AC245P,TC74AC245F,TC74AC245FT

TC74AC640P,TC74AC640F,TC74AC640FT

Octal Bus Transceiver

TC74AC245P/F/FT 3-State, Non-Inverting

TC74AC640P/F/FT 3-State, Inverting

The TC74AC245, 640 are advanced high speed CMOS OCTAL

BUS TRANSCEIVERs fabricated with silicon gate and double-layer

metal wiring C

2MOS technology.

They achieve the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

They are intended for two-way asynchronous communication

between data busses. The direction of data transmission is

determined by the level of the DIR input.

The enable input ( G ) can be used to disable the device so that

the busses are effectively isolated.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Features (Note 1)(Note 2)

• High speed: tpd = 3.9 ns (typ.) at VCC = 5 V

• Low power dissipation: ICC = 8 μA (max) at Ta = 25°C

• High noise immunity: VNIH = VNIL = 28% VCC (min)

• Symmetrical output impedance:

|IOH| = IOL = 24 mA (min)

Capability of driving 50

Ω transmission lines.

• Balanced propagation delays: tpLH ∼− tpHL

• Wide operating voltage range: VCC (opr) = 2 V to 5.5 V

• Pin and function compatible with 74F245/640

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.

TC74AC245P, TC74AC640P

TC74AC245F, TC74AC640F

TC74AC245FT, TC74AC640FT

Weight

DIP20-P-300-2.54A

: 1.30 g (typ.)

SOP20-P-300-1.27A

: 0.22 g (typ.)

TSSOP20-P-0044-0.65A

: 0.08 g (typ.)

Numéro de pièce similaire - TC74AC640FT

Fabricant	No de pièce	Fiches technique	Description
Toshiba Semiconductor	TC74AC640FT	310Kb / 7P	OCTAL BUS TRANSCEIVER

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