TC74VHC299F/FT

2007-10-01

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74VHC299F,TC74VHC299FT

8-Bit Pipo Shift Register with Asynchronous Clear

The TC74VHC299 is an advanced high speed CMOS 8-BIT

technology.

It achieves the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

It has a four modes (HOLD, SHIFT LEFT, SHIFT RIGHT and

LOAD DATA) controlled by the two selection inputs (S0, S1).

When one or both enable ( 1

G ,

2

G ) are high, the eight I/O are

forced to the high-impedance state; however, sequential

operation or clearing of the register is not affected.

All inputs are equipped with protection circuits against static

discharge.

Features (Note 1) (Note 2) (Note 3)

• Pin and function compatible with 74ALS299

Note 1: Do not apply a signal to A/QA to H/QH bus terminal when it is in the output mode. Damage may result.

Note 2: All floating (high impedance) A/QA to H/QH bus terminals must have their input levels fixed by means of pull

up or pull down resistors.

be used to interface 5 V to 3 V systems directly.

TC74VHC299F

TC74VHC299FT

Weight

SOP20-P-300-1.27A

: 0.22 g (typ.)

TSSOP20-P-0044-0.65A

: 0.08 g (typ.)