Overview
The TS555IDT, produced by STMicroelectronics, is a low-power single CMOS timer that offers significant advantages over traditional bipolar timers like the NE555. It is characterized by very low power consumption, with a typical supply current of 110 μA at VCC = 5 V, and a high maximum astable frequency of 2.7 MHz. This component is pin-to-pin functionally compatible with the bipolar NE555, making it an excellent alternative for applications requiring lower power and higher frequency capabilities.
The TS555IDT operates over a wide voltage range from +2 V to +16 V and features reduced supply current spikes during output transitions, which allows for the use of smaller decoupling capacitors. Its high input impedance and output compatibility with TTL, CMOS, and logic MOS make it versatile for various electronic designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.0 | 16.0 | V | |
| Operating Temperature (°C) | -40.0 | 125.0 | °C | |
| Supply Current (ICC) at VCC = 5 V | 110 | 250 | μA | |
| Maximum Astable Frequency | 2.7 | MHz | ||
| Output Rise Time (Cload = 10 pF) | 25 | ns | ||
| Output Fall Time (Cload = 10 pF) | 20 | ns | ||
| Trigger Propagation Delay | 100 | ns | ||
| Minimum Reset Pulse Width | 350 | ns |
Key Features
- Very low power consumption: 110 μA typ at VCC = 5 V and 90 μA typ at VCC = 3 V.
- High maximum astable frequency of 2.7 MHz.
- Pin-to-pin functionally compatible with bipolar NE555.
- Wide voltage range: +2 V to +16 V.
- Reduced supply current spikes during output transitions.
- High input impedance: 10^12 Ω.
- Output compatible with TTL, CMOS, and logic MOS.
Applications
The TS555IDT is suitable for a variety of applications where low power consumption and high frequency stability are critical. These include:
- Pulse generation and timing in low-power devices.
- Oscillator circuits requiring high frequency accuracy.
- Monostable and astable multivibrator circuits.
- Timing and delay circuits in battery-powered devices.
- Automotive and industrial control systems where low power and high reliability are essential.
Q & A
- What is the typical supply current of the TS555IDT at VCC = 5 V? The typical supply current is 110 μA.
- What is the maximum astable frequency of the TS555IDT? The maximum astable frequency is 2.7 MHz.
- Is the TS555IDT compatible with the NE555? Yes, it is pin-to-pin functionally compatible with the bipolar NE555.
- What is the operating voltage range of the TS555IDT? The operating voltage range is from +2 V to +16 V.
- What is the input impedance of the TS555IDT? The input impedance is 10^12 Ω.
- What types of logic are compatible with the output of the TS555IDT? The output is compatible with TTL, CMOS, and logic MOS.
- What is the minimum reset pulse width for the TS555IDT? The minimum reset pulse width is 350 ns.
- What is the output rise time of the TS555IDT with a load capacitance of 10 pF? The output rise time is 25 ns.
- What is the operating temperature range for the TS555IDT? The operating temperature range is from -40°C to 125°C.
- Is the TS555IDT RoHS compliant? Yes, it is RoHS compliant with an Ecopack3 designation.
