SLFS023H April   1978  – December 2024 NA556 , NE556 , SA556 , SE556

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Monostable Operation
      2. 6.3.2 Astable Operation
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Pulse-Width Modulation
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 Pulse-Position Modulation
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curves
  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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • DB|14
  • N|14
  • NS|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Pin Configuration and Functions

NA556 NE556 SA556 SE556 NA556: D, 14-Pin SOIC, and N, 14-Pin PDIPNE556: D, 14-Pin SOIC, DB, 14-Pin SSOP, N, 14-Pin PDIP, and NS, 14-Pin SO SA556: N, 14-Pin PDIPSE556: J, 14-Pin CDIP (Top View) Figure 4-1 NA556: D, 14-Pin SOIC, and N, 14-Pin PDIP
NE556: D, 14-Pin SOIC, DB, 14-Pin SSOP, N, 14-Pin PDIP, and NS, 14-Pin SO
SA556: N, 14-Pin PDIP
SE556: J, 14-Pin CDIP
(Top View)
Table 4-1 Pin Functions
PIN TYPE DESCRIPTION
NAME NO.
CONT 3, 11 Input Controls comparator thresholds. Outputs 2/3 VCC and allows bypass capacitor connection.
DISCH 1, 13 Output Open collector output to discharge timing capacitor.
GND 7 — Ground.
OUT 5, 9 Output High current timer output signal.
RESET 4, 10 Input Active low reset input forces output and discharge low.
THRES 2, 12 Input End of timing input. THRES > CONT sets output low and discharge low.
TRIG 6, 8 Input Start of timing input. TRIG < 1/2 CONT sets output high and discharge open.
VCC 14 — Power-supply voltage.