TS556IDT
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STMicroelectronics TS556IDT

Manufacturer No:
TS556IDT
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC OSC TIMER DUAL 2.7MHZ 14SOIC
Delivery:
Payment:
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Product Introduction

Overview

The TS556IDT, produced by STMicroelectronics, is a low-power dual CMOS timer that offers significant improvements over traditional bipolar timers like the NE556. This component is designed to provide very low power consumption, high frequency capabilities, and compatibility with a wide range of voltage levels. The TS556IDT is available in SO14 (Small Outline 14-pin) packages, making it suitable for various applications requiring precise timing and low power usage.

Key Specifications

ParameterMin.Max.Unit
Supply Current (VCC = 5V, no load)220500500µA
Supply Voltage Range2-16V
Maximum Astable Frequency (VCC = 5V)--2.7MHz
Trigger Voltage (VCC = 5V)1.361.262.06V
Reset Voltage (VCC = 5V)0.40.32.0V
Output Rise Time (Cload = 10 pF, VCC = 5V)--25ns
Output Fall Time (Cload = 10 pF, VCC = 5V)--20ns
Input Impedance--10^12Ω

Key Features

  • Low Power Consumption: Typical supply current of 220 µA at VCC = 5V and 180 µA at VCC = 3V.
  • High Frequency Capability: Maximum astable frequency of 2.7 MHz.
  • Wide Voltage Range: Operates from 2 V to 16 V.
  • Reduced Supply Current Spikes: Minimizes the need for large decoupling capacitors.
  • High Input Impedance: 10^12 Ω, allowing for smaller timing capacitors.
  • Output Compatibility: Compatible with TTL, CMOS, and logic MOS outputs.
  • Precision Timing: Accurate timing in both monostable and astable modes, independent of supply voltage.

Applications

The TS556IDT is versatile and can be used in various applications requiring precise timing and low power consumption. Some common applications include:

  • Monostable Operation: Acts as a one-shot generator, useful in circuits that require a single pulse of a specified duration.
  • Astable Operation: Functions as a multivibrator, generating a continuous waveform with adjustable frequency and duty cycle.
  • Pulse Generation: Can be used to generate pulses for timing circuits in digital systems.
  • Power Management: Suitable for battery-powered devices due to its low power consumption.

Q & A

  1. What is the typical supply current of the TS556IDT at VCC = 5V?
    The typical supply current is 220 µA at VCC = 5V.
  2. What is the maximum astable frequency of the TS556IDT?
    The maximum astable frequency is 2.7 MHz.
  3. What is the input impedance of the TS556IDT?
    The input impedance is 10^12 Ω.
  4. Is the TS556IDT compatible with TTL and CMOS outputs?
    Yes, it is compatible with TTL, CMOS, and logic MOS outputs.
  5. How does the TS556IDT handle supply current spikes during output transitions?
    The TS556IDT reduces supply current spikes during output transitions, minimizing the need for large decoupling capacitors.
  6. What are the common operating modes of the TS556IDT?
    The TS556IDT can operate in both monostable and astable modes.
  7. How is the timing interval in the monostable mode affected by the supply voltage?
    The timing interval is independent of the supply voltage due to the proportional relationship between the charge rate and the threshold level of the comparator.
  8. What is the duty cycle formula for the astable mode of the TS556IDT?
    The duty cycle is given by D = RB / (RA + 2RB).
  9. What is the recommended action for the Reset pin when not in use?
    The Reset pin should be tied high to avoid any possible or false triggering.
  10. Is the TS556IDT still in production?
    No, the TS556IDT is obsolete and no longer manufactured.

Product Attributes

Type:555 Type, Timer/Oscillator (Dual)
Count:- 
Frequency:2.7MHz
Voltage - Supply:2V ~ 16V
Current - Supply:130 µA
Operating Temperature:-40°C ~ 125°C
Package / Case:14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:14-SO
Mounting Type:Surface Mount
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Similar Products

Part Number TS556IDT TS555IDT TS556CDT TS556ID
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Obsolete Obsolete Obsolete Obsolete
Type 555 Type, Timer/Oscillator (Dual) 555 Type, Timer/Oscillator (Single) 555 Type, Timer/Oscillator (Dual) 555 Type, Timer/Oscillator (Dual)
Count - - - -
Frequency 2.7MHz 2.7MHz 2.7MHz 2.7MHz
Voltage - Supply 2V ~ 16V 2V ~ 16V 2V ~ 16V 2V ~ 16V
Current - Supply 130 µA 65 µA 130 µA 130 µA
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C 0°C ~ 70°C -40°C ~ 125°C
Package / Case 14-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SO 8-SOIC 14-SO 14-SO
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount

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