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74VHC393
(Rev.:2007)

Dual 4-Bit Binary Counter

Fairchild Semiconductor 

74VHC393

Dual 4-Bit Binary Counter

May 2007

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Features

■ High Speed: fMAX = 170MHz (Typ.) at TA = 25°C

■ Low power dissipation: ICC = 4µA (Max.) at TA = 25°C

■ High noise immunity: VNIH = VNIL = 28% VCC (Min.)

■ Power down protection is provided on all inputs

■ Pin and function compatible with 74HC393

General Description

The VHC393 is an advanced high speed CMOS 4-bit

Binary Counter fabricated with silicon gate CMOS tech-

nology. It achieves the high speed operation similar to

equivalent Bipolar Schottky TTL while maintaining the

CMOS low power dissipation. It contains two indepen-

dent counter circuits in one package, so that counting or

frequency division of 8 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” (Q0–Q3 = “L”) by a HIGH at the CLEAR input

regardless of other inputs.

An input protection circuit ensures that 0V to 7V can be

applied to the input pins without regard to the supply

voltage. This device can be used to interface 5V to 3V

systems and two supply systems such as battery back

up. This circuit prevents device destruction due to mis-

matched supply and input voltages.

Ordering Information

Order Number

Package

Number

Package Description

74VHC393M

74VHC393SJ

74VHC393MTC

74VHC393MTCX_NL(1)

M14A

M14D

MTC14

MTC14

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150"

Narrow

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

14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

4.4mm Wide

14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

4.4mm Wide

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

ordering number. Pb-Free package per JEDEC J-STD-020B.

Note:

1. Device available in Tape and Reel only.

©1998 Fairchild Semiconductor Corporation

74VHC393 Rev. 1.4

www.fairchildsemi.com

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