TLC555CP Timer – Complete Technical & Ordering Summary
(Extracted from Texas Instruments datasheet SLFS043J, Rev. Nov 2023)

1. Device Overview• Type: LinCMOS™ low-power 555 timer• Functional drop-in replacement for NE555 / LM555• Technology: CMOS rail-to-rail output, 2 MHz max. oscillation• ESD: 1 kV HBM / CDM per ANSI/ESDA/JEDEC JS-001
2. TLC555CP Specifics• Orderable part number: TLC555CP• Package: 8-pin PDIP (plastic dual-in-line)• Package size (nominal): 9.81 mm × 9.43 mm (includes leads)• Operating temperature: 0 °C to +70 °C (commercial)• MSL rating: N/A (through-hole)• RoHS status: RoHS-compliant (NIPDAU lead finish)• Carrier: 50-piece tube
3. Key Electrical Characteristics (@ 25 °C unless noted)Parameter | Conditions | TLC555CP Value | Unit---|---|---|---Supply voltage VDD | – | 2 to 15 | VSupply current IDD | VDD = 5 V, no load | 180 (typ) 500 (max) | µATrigger / Threshold current | VDD = 5 V | 10 (typ) 75 (max) | pAHigh-level output VOH | IOH = –1 mA, VDD = 5 V | 4.1 (min) | VLow-level output VOL | IOL = 8 mA, VDD = 5 V | 0.4 (max) | VSource current | VDD = 5 V | 10 (typ) | mASink current | VDD = 5 V | 100 (typ) | mADischarge on-resistance | VDD = 5 V, IOL = 10 mA | 14 (typ) | ΩTiming accuracy | VDD = 5 V to 15 V | 0.1 (typ) 0.5 (max) | %/VMax. frequency (astable) | RA = 470 Ω, CT = 200 pF | 2.1 | MHzPropagation delay | CL = 10 pF, RL = 10 MΩ | tr = 75, tf = 60 | ns
4. Pinout (8-pin PDIP – top view)Pin 1 GNDPin 2 TRIGPin 3 OUTPin 4 RESETPin 5 CONT (2/3 VDD)Pin 6 THRESPin 7 DISCHPin 8 VDD
5. Functional Modes• Monostable: tW ≈ 1.1 RA C (min 1 µs)• Astable: f ≈ 1.44 / [(RA + 2 RB) C]; duty-cycle ≥ 50 %• Frequency divider & PWM/ppm capable via CONT pin
6. Application ExamplesPrecision timing, pulse generation, missing-pulse detector, PWM motor drive, PPM telemetry, sequential power-on reset, ESD-protected timer circuits.
7. Absolute Maximum RatingsVDD ........................ –0.3 V to 18 VAny input ............... –0.3 V to VDDDischarge pin ......... –0.3 V to 18 VOutput current ........ ±150 mAStorage temp ........ –65 °C to 150 °C
8. Thermal Data (PDIP-8)RθJA ....................... 93 °C/WRθJC(top) ............... 82.5 °C/W
9. Power-Supply & Layout• Bypass: 0.1 µF ceramic + 1 µF electrolytic close to VDD-GND pins• Keep timing capacitor traces short and ground-referenced• Unused inputs tied to VDD or GND; RESET pulled to VDD with 10 kΩ if used
10. Packaging & Ordering• Tube quantity: 50 pcs / tube (standard shipment)• Reel option: not available for PDIP• Part marking: “TLC555CP” on body• Lead finish: NIPDAU (Sn-Ni-Pd-Au), RoHS-compliant
11. Compatible / Alternative PackagesSOIC (D): TLC555CDR (2500-reel)TSSOP (PW): TLC555CPWR (2000-reel)Automotive (Q): TLC555QDR (-40 °C to 125 °C)
12. Documentation & SupportDatasheet: SLFS043J (Nov 2023)TI E2E™ forum, TLC555 product folder, application notes, Spice models.