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M74HC393

Dual Binary Counter
  • NRND NRND

The M74HC393 is an high speed CMOS DUAL BINARY COUNTER fabricated with silicon gate C2MOS technology.

This counter circuit contains independent ripple carry counters and two 4-bit ripple carry binary counters, which can be cascaded to create a single divide by 256 counter.

Each 4-bit counter is incremented on the high to low transition (negative edge) of the clock input, and each has an independent clear input. When CLEAR is set to low, all four bits of each counter are set to a low level. This enables count truncation and allows the implementation of divide by N counter configurations.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

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Errata Sheet
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Datasheet

Key Features

  • HIGH SPEED: fMAX = 79MHz (TYP.) at VCC = 6V
  • LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25 °C
  • HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.)
  • SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN)
  • BALANCED PROPAGATION DELAYS: tPLHtPHL
  • WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V
  • PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 393

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS0287: Dual binary counter
1.3 203 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
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Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
M74HC393RM13TRNRNDSO-14Tape And Reel_-Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE900000
DIGIKEYOrder NowWORLDWIDE151
MOUSEROrder NowWORLDWIDE15131
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XML
M74HC393TTRNRNDTSSOP 14Tape And Reel_-Distributor reported inventory date: 2014-11-28
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA25002500
DIGIKEYOrder NowWORLDWIDE89101
FUTUREOrder NowWORLDWIDE25002500
MOUSEROrder NowWORLDWIDE11751
Ecopack1-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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