Datasheet TLC555 (Texas Instruments) - 5

TLC555 www.ti.com
SLFS043H – SEPTEMBER 1983 – REVISED AUGUST 2016
TLC555M: JG Package TLC555M: FK Package 8-Pin CDIP 20-Pin LCCC Top View Top View
D D NC GND NC V NC GND 1 8 VDD 3 2 1 20 19 TRIG 2 7 DISCH OUT 3 6 THRES NC 4 18 NC RESET 4 5 CONT TRIG 5 17 DISCH NC 6 16 NC OUT 7 15 THRES NC 8 14 NC 9 1 10 1 12 13 NC NC NC CONT RESET
Pin Functions: TLC555M PIN I/O DESCRIPTION NAME LCCC CDIP
CONT 12 5 I Controls comparator thresholds. Outputs 2/3 VDD and allows bypass capacitor connection. DISCH 17 7 O Open-collector output to discharge timing capacitor GND 2 1 — Ground 1, 3, 4, 6, 8, NC 9, 11, 13, 14, — — No internal connection 16, 18, 19 OUT 7 3 O High current timer output signal RESET 10 4 I Active low reset input forces output and discharge low THRES 15 6 I End of timing input. THRES > CONT sets output low and discharge low. TRIG 5 2 I Start of timing input. TRIG < ½ CONT sets output high and discharge open. VDD 20 8 — Power-supply voltage
TLC555Q: D Package 8-Pin SOIC Top View
GND 1 8 VDD TRIG 2 7 DISCH OUT 3 6 THRES RESET 4 5 CONT
Pin Functions: TLC555Q PIN I/O DESCRIPTION NAME SOIC
CONT 5 I Controls comparator thresholds, Outputs 2/3 VDD, allows bypass capacitor connection DISCH 7 O Open-collector output to discharge timing capacitor GND 1 — Ground OUT 3 O High current timer output signal RESET 4 I Active low reset input forces output and discharge low THRES 6 I End of timing input. THRES > CONT sets output low and discharge low TRIG 2 I Start of timing input. TRIG < ½ CONT sets output high and discharge open VDD 8 — Power supply voltage Copyright © 1983–2016, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TLC555 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 Recommended Operating Conditions 7.3 Thermal Information 7.4 Electrical Characteristics: VDD = 2 V for TLC555C, VDD = 3 V for TLC555I 7.5 Electrical Characteristics: VDD = 5 V 7.6 Electrical Characteristics: VDD = 15 V 7.7 Electrical Characteristics: VDD = 5 V 7.8 Typical Characteristics 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Monostable Operation 8.3.2 Astable Operation 8.3.3 Frequency Divider 8.4 Device Functional Modes 9 Application and Implementation 9.1 Application Information 9.2 Typical Applications 9.2.1 Missing-Pulse Detector 9.2.1.1 Design Requirements 9.2.1.2 Detailed Design Procedure 9.2.1.3 Application Curve 9.2.2 Pulse-Width Modulation 9.2.2.1 Design Requirements 9.2.2.2 Detailed Design Procedure 9.2.2.3 Application Curve 9.2.3 Pulse-Position Modulation 9.2.3.1 Design Requirements 9.2.3.2 Detailed Design Procedure 9.2.3.3 Application Curve 9.2.4 Sequential Timer 9.2.4.1 Design Requirements 9.2.4.2 Detailed Design Procedure 9.2.4.3 Application Curve 10 Power Supply Recommendations 11 Layout 11.1 Layout Guidelines 11.2 Layout Example 12 Device and Documentation Support 12.1 Receiving Notification of Documentation Updates 12.2 Community Resources 12.3 Trademarks 12.4 Electrostatic Discharge Caution 12.5 Glossary 13 Mechanical, Packaging, and Orderable Information