TLC555 CMOS Timer IC

Specifications

Product Overview

The TLC555 is a Texas Instruments CMOS timer IC categorized under Signal_Chain devices. Its operating supply range depends on the device grade: TLC555C is specified from 2 V to 15 V, TLC555I from 3 V to 15 V, and TLC555M and TLC555Q from 5 V to 15 V. The datasheet lists operation up to 2 MHz and typical power consumption of 1 mW at VDD = 5 V.

Output and discharge behavior are central parameters for circuit design. The device has typical output sink capability of 100 mA and typical output source capability of 10 mA, while absolute maximum ratings list 150 mA for discharge or output sink current and 15 mA for output source current. At VDD = 5 V, threshold voltage is 2.8 V minimum, 3.3 V typical, and 3.8 V maximum at 25°C.

Package options include SOIC-8, PDIP-8, SOP-8, TSSOP-14, LCCC-20, and CDIP-8. Thermal metrics include RθJA values from 93.1°C/W for PDIP-8 to 138.9°C/W for SOIC-8, supporting package-level assembly and thermal review.

Key Features

• CMOS timer IC for Signal_Chain timing functions
• Recommended supply range starts at 2 V for TLC555C
• Maximum operating frequency is up to 2 MHz
• Typical power consumption is 1 mW at 5 V
• Typical output sink capability is 100 mA
• Typical output source capability is 10 mA
• Absolute maximum supply rating is -0.3 V to 18 V
• Control voltage ratio is 66.7% of supply voltage
• Trigger and threshold capacitance is 2.1 pF at 5 V
• HBM and CDM ESD ratings are ±1000 V
• Available in SOIC-8, PDIP-8, SOP-8, TSSOP-14, LCCC-20, CDIP-8
• Temperature grades span 0°C to 70°C through -55°C to 125°C

Typical Applications

• CMOS timer circuits
• Timing pulse generation
• Oscillator timing functions
• Trigger-threshold timing networks
• Reset-controlled timing stages
• Discharge-switch timing circuits
• Low-power 5 V timing designs
• Signal_Chain timing support

Procurement Notes

When requesting a quote for TLC555, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.