Overview
The TS555IDTTR is a low-power single CMOS timer produced by STMicroelectronics. It is designed to offer very low power consumption and high frequency capabilities, making it an efficient alternative to traditional bipolar timers like the NE555. The TS555IDTTR operates with a typical supply current of 110 µA at 5 V and 90 µA at 3 V, significantly lower than the NE555. It also features a high maximum astable frequency of 2.7 MHz, which is substantially higher than the NE555's 0.1 MHz. This timer is pin-to-pin functionally compatible with the NE555, making it easy to integrate into existing designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2 to 16 | V |
| Supply Current (ICC) at VCC = 5 V | 110 | µA |
| Supply Current (ICC) at VCC = 3 V | 90 | µA |
| Maximum Astable Frequency | 2.7 | MHz |
| Input Impedance | 10^12 Ω | Ω |
| Output Compatibility | TTL, CMOS, Logic MOS | |
| Operating Temperature Range | -40 to +125 | °C |
| Output Rise Time (Cload = 10 pF) | 25 | ns |
| Output Fall Time (Cload = 10 pF) | 20 | 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 TS555IDTTR is suitable for a variety of applications where low power consumption and high frequency stability are crucial. These include:
- Timing and pulse generation in low-power systems.
- One-shot generators in monostable mode.
- Astable multivibrators for generating square waves.
- Applications requiring reduced supply current spikes and high input impedance.
- Integration into battery-powered devices and IoT systems.
Q & A
- What is the typical supply current of the TS555IDTTR at 5 V?
The typical supply current is 110 µA at VCC = 5 V.
- What is the maximum astable frequency of the TS555IDTTR?
The maximum astable frequency is 2.7 MHz.
- Is the TS555IDTTR compatible with the NE555?
Yes, it is pin-to-pin functionally compatible with the bipolar NE555.
- What is the operating temperature range of the TS555IDTTR?
The operating temperature range is -40 to +125 °C.
- What is the input impedance of the TS555IDTTR?
The input impedance is 10^12 Ω.
- What types of outputs are compatible with the TS555IDTTR?
The outputs are compatible with TTL, CMOS, and logic MOS.
- How does the TS555IDTTR reduce supply current spikes?
The TS555IDTTR reduces supply current spikes during output transitions, allowing for the use of lower decoupling capacitors.
- What is the typical output rise time of the TS555IDTTR?
The typical output rise time is 25 ns with a load capacitance of 10 pF.
- What is the typical output fall time of the TS555IDTTR?
The typical output fall time is 20 ns with a load capacitance of 10 pF.
- What are some common applications of the TS555IDTTR?
Common applications include timing and pulse generation, one-shot generators, astable multivibrators, and integration into battery-powered devices and IoT systems.
