SN74AS74A

ACTIVE

Dual Positive-Edge-Triggered D-Type Flip-Flops With Preset And Clear

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Product details

Parameters

Technology Family AS Input type Bipolar Output type Push-Pull VCC (Min) (V) 4.5 VCC (Max) (V) 5.5 Channels (#) 2 Clock Frequency (Max) (MHz) 100 ICC (uA) 16000 IOL (Max) (mA) 20 IOH (Max) (mA) -2 Features Very high speed (tpd 5-10ns) Rating Catalog open-in-new Find other D-type flip-flop

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 SOP (NS) 14 80 mm² 10.2 x 7.8 open-in-new Find other D-type flip-flop

Features

  • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
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Description

These devices contain two independent positive-edge-triggered D-type flip-flops. A low level at the preset () or clear () inputs sets or resets the outputs regardless of the levels of the other inputs. When and are inactive (high), data at the data (D) input meeting the setup-time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

The SN54ALS74A and SN54AS74A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS74A and SN74AS74A are characterized for operation from 0°C to 70°C.

 

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Technical documentation

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Type Title Date
* Datasheet Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset datasheet (Rev. C) Aug. 01, 1995
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application notes Power-Up Behavior of Clocked Devices (Rev. A) Feb. 06, 2015
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
Application notes Designing With Logic (Rev. C) Jun. 01, 1997
Application notes Advanced Schottky Load Management Feb. 01, 1997
Application notes Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application notes Live Insertion Oct. 01, 1996
Application notes Advanced Schottky (ALS and AS) Logic Families Aug. 01, 1995

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
$10.00
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices

Design tools & simulation

SIMULATION MODELS Download
SDAM008A.ZIP (10 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
PDIP (N) 14 View options
SO (NS) 14 View options
SOIC (D) 14 View options

Ordering & quality

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