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NE556DT
+Lista de MateriaisIC OSC TIMER DUAL 500KHZ 14SOIC
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FabricanteSTMicroeletrônica
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Peça do Fabricante #NE556DT
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Pacote SOIC-14
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Em Estoque6211
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Obsolete |
| Type | 555 Type, Timer/Oscillator (Dual) |
| Frequency | 500kHz |
| Voltage - Supply | 4.5V ~ 16V |
| Supply Current | 20 mA |
| Operating Temperature | 0°C ~ 70°C |
| Supplier Device Package | 14-SO |
Visão Geral
Description
### Key Features:
- Dual 555 timers (NE556) in one chip
- Wide voltage range: 4.5V to 16V
- Adjustable duty cycle
- High output current (200mA)
- Low power consumption
### Applications:
- Pulse-width modulation (PWM)
- Precision timing circuits
- LED flashers & tone generators
- Debounce circuits
The NE556DT is ideal for space-constrained designs requiring multiple timers. Its performance is similar to the classic NE555, but with two timers integrated into a single IC.
Would you like a specific circuit example?
Equivalent
- LM556 (Texas Instruments)
- TLC556 (Low-power version, TI)
- MC1456 (Motorola)
- ICM7556 (CMOS version, Intersil)
- TS556 (STMicroelectronics)
These alternatives offer similar functionality, though some may vary in power consumption, speed, or voltage range. Always check datasheets for compatibility.
Features
- Dual 555 Timers: Two fully functional timers in one 16-pin package.
- Wide Voltage Range: Operates from 4.5V to 16V.
- High Output Current: Up to 200mA per timer.
- Adjustable Duty Cycle: Supports monostable (one-shot) and astable (oscillator) modes.
- Low Power Consumption: Compatible with TTL/CMOS logic.
- Temperature Stability: Performs well across a 0°C to 70°C range.
Ideal for pulse generation, timing circuits, LED flashers, and tone generation. Compact and cost-effective for space-constrained designs.
Pinout
Pin Functions (per timer):
- Trigger (TRIG): Starts timing when voltage falls below 1/3 Vcc.
- Threshold (THRES): Resets output when voltage exceeds 2/3 Vcc.
- Control Voltage (CONT): Adjusts threshold/trigger levels (bypass with capacitor).
- Discharge (DISCH): Discharges timing capacitor.
- Output (OUT): Provides the timer’s output signal.
- Reset (RESET): Active-low reset (must be held high for normal operation).
Shared Pins:
- Vcc (Pin 14): Power supply (4.5V–16V).
- GND (Pin 7): Ground.
Each timer operates independently, making the NE556DT useful for dual timing applications like pulse generation, delays, or oscillators.
Manufacturer
TI is a global technology firm known for producing a wide range of electronics, including microcontrollers, power management chips, and signal processing components. The NE556DT is a dual timer IC, commonly used in timing, oscillation, and pulse generation applications.
Founded in 1930, TI is headquartered in Dallas, Texas, and is one of the largest semiconductor manufacturers worldwide. The company serves industries such as automotive, industrial, consumer electronics, and communications.
Application
1. Timing Circuits – Precision timing, delays, and pulse generation.
2. Oscillators – Square-wave generation for clocks and tone generators.
3. PWM Control – Motor speed regulation and LED dimming.
4. Pulse Generation – Triggering and synchronization in digital systems.
5. Voltage Monitoring – Power supply supervision and reset circuits.
6. Industrial Automation – Sequential timing in control systems.
Its versatility makes it popular in consumer electronics, automotive, and industrial applications.