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TC74AC393

Dual Binary Counter

Toshiba 

TC74AC393P/F/FN/FT

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74AC393P,TC74AC393F,TC74AC393FN,TC74AC393FT

Dual Binary Counter

The TC74AC393 is an advanced high speed CMOS 4-BIT

BINARY COUNTER fabricated with silicon gate and

double-layer metal wiring C2MOS technology.

It achieves the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

It contains two independent counter circuits in one package, so

that counting or frequency division of eight binary bits can be

achieved with one IC.

This device changes state on the negative going transition of

the CLOCK pulse. The counter can be reset to “0” (QA to QD =

“L”) by a high at the CLEAR input regardless of other inputs.

All inputs are equipped with protection circuits against static

discharge or transient excess voltage.

Features

• High speed: fmax = 180 MHz (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 to 5.5 V

• Pin and function compatible with 74F393

Note: xxxFN (JEDEC SOP) is not available in

Japan.

TC74AC393P

TC74AC393F

TC74AC393FN

TC74AC393FT

Weight

DIP14-P-300-2.54

SOP14-P-300-1.27A

SOL14-P-150-1.27

TSSOP14-P-0044-0.65A

: 0.96 g (typ.)

: 0.18 g (typ.)

: 0.12 g (typ.)

: 0.06 g (typ.)

1

2007-10-01

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