Product Summary

The LM556CM is a Dual timing circuit which is a highly stable controller capable of producing accurate time delays or oscillation. Timing is provided by an external resistor and capacitor for each timing function. The LM556CM operates independently with VCC and ground. It may be triggered and reset on falling waveforms. The output structures may sink or source 200mA. Applications include: Precision timing, Pulse generation, Sequential timing, Time delay generation, Pulse width modulation, Pulse position modulation, and Linear ramp generator.

Parametrics

LM556CM absolute maximum ratings: (1)Supply Voltage: +18V; (2)Power Dissipation: 410 mW; (3)Operating Temperature Ranges: 0℃ to +70℃; (4)Storage Temperature Range: 65℃ to +150℃; (5)Soldering Dual-In-Line Package Soldering (10 Seconds): 260℃; (6)Soldering Small Outline Packages Vapor Phase (60 Seconds): 215℃; (7)Soldering Small Outline Packages Infrared (15 Seconds): 220℃.

Features

LM556CM features: (1)Direct replacement for SE556/NE556; (2)Timing from microseconds through hours; (3)Operates in both astable and monostable modes; (4)Replaces two 555 timers; (5)Adjustable duty cycle; (6)Output can source or sink 200mA; (7)Output and supply TTL compatible; (8)Temperature stability better than 0.005% per ℃; (9)Normally on and normally off output.

Diagrams

LM556CM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM556CM
LM556CM
National Semiconductor (TI)
Timers & Support Products
Data Sheet
0-770: $0.40
770-1045: $0.36
1045-2530: $0.36
2530-5005: $0.32
LM556CM/NOPB
LM556CM/NOPB
National Semiconductor (TI)
Timers & Support Products Dual Timer
Data Sheet
0-1: $0.85
1-25: $0.67
25-100: $0.59
100-250: $0.52
LM556CMX/NOPB
LM556CMX/NOPB
National Semiconductor (TI)
Timers & Support Products
Data Sheet
0-1: $0.92
1-25: $0.72
25-100: $0.65
100-250: $0.57
LM556CMX
LM556CMX
National Semiconductor (TI)
Timers & Support Products
Data Sheet
0-2500: $0.36
2500-5000: $0.32
5000-10000: $0.30