SCLS177H March   1984  – August 2024 SN74HCT574

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Description
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics
    5. 4.5 Timing Requirements
    6. 4.6 Switching Characteristics, CL = 50 pF
    7. 4.7 Switching Characteristics, CL = 150 pF
    8. 4.8 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

3 Pin Configuration and Functions

SN54HCT574 SN74HCT574 DB, DGS, DW, N, NS, or PW package20-Pin SSOP, SOIC, PDIP, SO, TSSOPTop ViewDB, DGS, DW, N, NS, or PW package
20-Pin SSOP, SOIC, PDIP, SO, TSSOP
Top View
SN54HCT574 SN74HCT574 FK Package20-Pin LCCCTop ViewFK Package
20-Pin LCCC
Top View
Table 3-1 Pin Functions
NAME(1) PIN TYPE DESCRIPTION
1OE 1 I Output enable 1
1A1 2 I 1A1 input
2Y4 3 O 2Y4 output
1A2 4 I 1A2 input
2Y3 5 O 2Y3 output
1A3 6 I 1A3 input
2Y2 7 O 2Y2 output
1A4 8 I 1A4 input
2Y1 9 O 2Y1 output
GND 10 — Ground pin
2A1 11

I

 2A1 input
1Y4 12 O 1Y4 output
2A2 13

I

 2A2 input
1Y3 14 O 1Y3 output
2A3 15 I 2A3 input
1Y2 16 O 1Y2 output
2A4 17 I 2A4 input
1Y1 18 O 1Y1 output
2OE 19 I Output enable 2
VCC 20 — Power pin
(1) I = input, O = output, P = power, FB = feedback, GND = ground, N/A = not applicable