Overview
The TLC556IDRG4 is a dual LinCMOS™ timer from Texas Instruments, designed for precision timing applications. Fabricated using the LinCMOS™ process, this device offers full compatibility with CMOS, TTL, and MOS logic. It operates at frequencies up to 2 MHz and is characterized by its low power consumption and high output-current capability. The TLC556IDRG4 is functionally interchangeable with the NE556 and has the same pinout, making it a versatile component for various timing and pulse generation needs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Voltage Supply (VDD) | 2 | - | 15 | V |
| Input Threshold Voltage (VIT) at VDD = 5V | 1.33 | 1.65 | - | V |
| High-Level Output Voltage (VOH) at VDD = 5V, IOH = -1mA | 4.1 | 4.8 | - | V |
| Low-Level Output Voltage (VOL) at VDD = 5V, IOL = 10mA | 0.12 | 0.3 | - | V |
| Supply Current (IDD) at VDD = 5V | 360 | 700 | 1000 | μA |
| Output Current Capability - Sink | - | 100mA | - | mA |
| Output Current Capability - Source | - | 10mA | - | mA |
| Operating Temperature Range | -40°C | - | 85°C | °C |
Key Features
- Very low power consumption: 2mW typical at VDD = 5V
- Capable of operation in astable mode
- CMOS output capable of swinging rail to rail
- High output-current capability: sink up to 100mA, source up to 10mA
- Output fully compatible with CMOS, TTL, and MOS logic
- Low supply current reduces spikes during output transitions
- Single-supply operation from 2V to 15V
- Functionally interchangeable with the NE556; has the same pinout
Applications
- Precision timing
- Pulse generation
- Sequential timing
- Time delay generation
- Pulse width modulation
- Pulse position modulation
- Linear ramp generator
Q & A
- What is the typical power consumption of the TLC556IDRG4 at VDD = 5V?
The typical power consumption is 2mW at VDD = 5V.
- What is the operating temperature range for the TLC556IDRG4?
The operating temperature range is from -40°C to 85°C.
- Can the TLC556IDRG4 operate in astable mode?
- What is the output current capability of the TLC556IDRG4?
The output can sink up to 100mA and source up to 10mA.
- Is the TLC556IDRG4 compatible with CMOS, TTL, and MOS logic?
- What is the voltage range for single-supply operation of the TLC556IDRG4?
The device can operate with a single supply from 2V to 15V.
- Is the TLC556IDRG4 functionally interchangeable with the NE556?
- What are some common applications of the TLC556IDRG4?
- How does the reset input (RESET) function on the TLC556IDRG4?
The reset input (RESET) overrides all other inputs and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low.
- What happens when the trigger input (TRIG) falls below the trigger level?
