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Product Detailed Parameters
- Description：IC OSC TIMER DUAL 2.1MHZ 14SOIC
- Series：LinCMOS™
- Package：Tape & Reel (TR),Cut Tape (CT)
- Mfr：Texas Instruments
- Type：555 Type, Timer/Oscillator (Dual)
- Count：-
- Frequency：2.1MHz
- Voltage - Supply：3V ~ 15V
- Operating Temperature：-40°C ~ 85°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- Mounting Type：Surface Mount
- Current - Supply：720 µA
- Grade：-
- Qualification：-
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Overview
The TLC556IDR is a dual timer integrated circuit from Texas Instruments, belonging to the LinCMOS™ series. It integrates two independent 555-type timers within a single 14-SOIC package. The device operates on a supply voltage range of 3V to 15V with a typical supply current of 720 µA. It supports frequencies up to 2.1MHz and functions across an operating temperature range of -40°C to 85°C. This surface-mount component provides a low-power alternative to bipolar timers while maintaining standard 555 functionality.
Feature Summary
- Dual timer configuration integrating two independent 555-type oscillators in one package
- Low power consumption with a supply current of 720 µA
- Wide supply voltage operation from 3V to 15V
- High-frequency capability up to 2.1MHz
Applications
- DC-DC converters
- PWM motor control
- Alarm circuits
- Logic timing circuits
- Time delay generation
Procurement Notes
Verify the suffix 'IDR' corresponds to the industrial temperature grade (-40°C to 85°C) and tape-and-reel packaging format. Confirm RoHS compliance status as specified in the latest manufacturer documentation. Ensure the 14-SOIC footprint matches the PCB design constraints before ordering.
Selection Notes
Select the TLC556IDR when dual timer functionality is required in a compact surface-mount form factor. Compare against the NE556DR if higher output drive current (200mA vs 100mA) or different temperature ranges are needed. Consider the single-channel TLC555CDR if only one timer is sufficient for the application.
Part Context
This part is part of the broader TLC55x family of CMOS timers. It shares pin compatibility with the bipolar NE556 but offers significantly lower power consumption. The 'I' denotes the industrial temperature range, while 'D' indicates the SOIC package and 'R' specifies reel packaging.
Replacement Considerations
The NE556DR is a functional substitute but draws higher supply current (20 mA vs 720 µA). The TLC556MD is available in a tube package variant. Verify that the increased drive current of bipolar alternatives does not impact power budget requirements.
