NE556-HLF-Dual precision Timer IC DIP-14

NE556-HLF Dual Precision Timer IC (DIP-14) delivers two independent precision timing circuits in a single package. Designers apply it for accurate time delays, pulse generation, and oscillator functions in industrial, consumer, and embedded electronics.

Key Features:

• Dual Timer Channels: Integrates two independent 555 timers in one IC.
• Wide Supply Range: Operates from 4.5 V to 16 V DC for flexible designs.
• High Output Current: Provides up to 200 mA peak drive capability.
• Accurate Timing: Ensures low frequency drift and stable duty cycle.
• TTL and CMOS Compatible: Accepts standard logic-level triggering.
• Low Power Consumption: Suitable for battery-powered equipment.

Technical Specifications:

• Supply Voltage (V_CC): 4.5 V to 16 V
• Supply Current: 6 mA typical at V_CC = 5 V, both timers active
• Timing Interval Range: Microseconds to hours depending on external R and C
• Output Current: ±200 mA peak
• Threshold Voltage: ~2/3 of V_CC
• Trigger Voltage: ~1/3 of V_CC
• Operating Temperature: −40 °C to +85 °C

Mechanical Specifications:

• Package: DIP-14 through-hole
• Leads: Tin-plated pins for solderability
• Body Material: Molded epoxy resin
• Mounting: Standard 14-pin DIP socket or direct PCB soldering

Dimensions:

• Body Length: ~19.3 mm
• Body Width: ~6.4 mm
• Body Height: ~4.6 mm
• Pin Pitch: 2.54 mm
• Total Pin Span: 7.62 mm row spacing

Pinout and Wiring:

• Pin 1: GND
• Pin 2: Trigger A
• Pin 3: Output A
• Pin 4: Reset A
• Pin 5: Control Voltage A
• Pin 6: Threshold A
• Pin 7: Discharge A
• Pin 8: VCC (Power)
• Pin 9: Discharge B
• Pin 10: Threshold B
• Pin 11: Control Voltage B
• Pin 12: Reset B
• Pin 13: Output B
• Pin 14: Trigger B

Datasheet Reference:

• NE556 datasheet

Applications:

• Monostable and Astable Timers: Generate accurate pulses and square waves.
• Frequency Divider: Create timing-based dividers and oscillators.
• LED and Lamp Flashers: Control blinking indicators and strobes.
• Pulse Width Modulators: Provide adjustable duty cycle outputs.
• Tone Generation: Build simple audio oscillators.

Equivalent Models:

• TLC556: CMOS dual timer IC with lower power consumption
• LM556: Compatible dual timer version
• NA556: General-purpose dual timer with similar functionality

Package Includes:

• 1 x NE556-HLF-Dual precision Timer IC DIP-14