SN5497

ACTIVE

Synchronous 6-Bit Binary Rate Multipliers

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Product details

Parameters

Function Frequency divider Bits (#) 6 Technology Family TTL Supply voltage (Min) (V) 4.75 Supply voltage (Max) (V) 5.25 Input type Bipolar Output type TTL Features Partial power down (Ioff) open-in-new Find other Counters

Package | Pins | Size

CDIP (J) 16 135 mm² 19.65 x 6.92 open-in-new Find other Counters

Features

  • Perform Fixed-Rate or Variable-Rate Frequency Division
  • For Applications in Arithmetic, Radar, Digital-to-Analog (D/A), Analog-to-Digital (A/D), and other Conversion Operations
  • Typical Maximum Clock Frequency … 32 Megahertz

 

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Description

These monolithic, fully synchronous, programmable counters utilize Series 54/74 TTL circuitry to achieve 32-megahertz typical maximum operating frequencies. These six-bit serial binary counters feature buffered clock, clear, and enable inputs to control the operation of the counter, and a strobe input to enable or inhibit the rate input/decoding AND-OR-INVERT gates. The outputs have additional gating for cascading and transferring unity-count rates.

The counter is enabled when the clear, strobe, and enable inputs are low. With the counter enabled, the output frequency is equal to the input frequency multiplied by the rate input M and divided by 64, ie.:

When the rate input is binary 0 (all rate inputs low), Z remains high. In order to cascade devices to perform 12-bit rate multiplication, the enable output is connected to the enable and strobe inputs of the next stage, the Z output of each stage is connected to the unity/cascade input of the other stage, and the sub-multiple frequency is taken from the Y output.

The unity/cascade input, when connected to the clock input, may be utilized to pass the clock frequency (inverted) to the Y output when the rate input/decoding gates are inhibited by the strobe. The unity/cascade input may also be used as a control for the Y output.

 

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Technical documentation

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Type Title Date
* Data sheet Synchronous 6-Bit Binary Rate Multipliers datasheet Mar. 01, 1988
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application note Designing With Logic (Rev. C) Jun. 01, 1997
Application note Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application note Live Insertion Oct. 01, 1996

Design & development

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CDIP (J) 16 View options

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