component

TLC555N

Public Made by Adom

by adom

HGSEMI Timers / Counters, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TLC555N

HGSEMI · Timers / Counters · DIP-8

TLC555N from HGSEMI, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground; all voltages are measured relative to this pin.
2 TRIGGER input Trigger input that sets the flip-flop and drives output high when below 1/3 VCC; trigger current is 10 pA max at VCC=5V.
3 OUTPUT output Timer output, TTL/CMOS compatible at 5V; VOL 0.4 V max at 3.2 mA sink and VOH 4.0 V min at -2 mA at VCC=5V.
4 RESET input Active-low reset that forces output low and turns the discharge switch on; reset voltage is 0.4 to 1.2 V at VCC=5V, input range -0.3 to VCC+0.3 V.
5 CONTROL VOLTAGE input Control voltage input that overrides the 2/3 VCC threshold level; 3.33 V typical at VCC=5V.
6 THRESHOLD input Threshold input that resets the flip-flop when above 2/3 VCC; threshold current is 10 pA max at VCC=5V.
7 DISCHARGE passive Open-drain discharge transistor output for the timing capacitor; saturation voltage 400 mV max at 10 mA, VCC=5V.
8 VDD power_in Positive supply voltage, recommended 4.5 to 15 V, absolute maximum 15 V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package DIP-8
Category Clock/Timing
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply current, VCC=5V Is 30 50 uA VCC=5V 4
Supply current, VCC=10V Is 60 100 uA VCC=10V 4
Supply current, VCC=15V Is 90 150 uA VCC=15V 4
Control voltage, VCC=5V VCTRL 3.28 3.33 3.38 V VCC=5V 4
Control voltage, VCC=10V VCTRL 6.6 6.66 6.7 V VCC=10V 4
Control voltage, VCC=15V VCTRL 9.95 10 10.15 V VCC=15V 4
Discharge saturation voltage VDIS 100 400 mV VCC=5V, IDIS=10mA 4
Output voltage low VOL 0.1 0.4 V VCC=5V, Io=3.2mA; VCC=15V, Io=3.2mA 4
Output voltage high, VCC=5V VOH 4 4.5 V VCC=5V, Io=-2mA 4
Output voltage high, VCC=15V VOH 14.5 14.75 V VCC=15V, Io=-2mA 4
Trigger voltage, VCC=5V VTRIG 1.55 1.66 1.7 V VCC=5V 4
Trigger voltage, VCC=10V VTRIG 3.23 3.33 3.38 V VCC=10V 4
Trigger voltage, VCC=15V VTRIG 4.95 5 5.05 V VCC=15V 4
Trigger current ITRIG 10 pA VCC=5V 4
Reset voltage VRES 0.4 0.7 1.2 V VCC=5V 4
Reset current IRES 10 pA VCC=5V 4
Threshold current ITHRESH 10 pA VCC=5V 4
Discharge leakage current IDIS 1 100 nA VCC=12V 4
Output rise time tR 35 40 75 ns VCC=5V, RL=10MΩ, CL=10pF 4
Output fall time tF 35 40 75 ns VCC=5V, RL=10MΩ, CL=10pF 4
Maximum frequency Fmax 500 KHz 4
Supply voltage Vcc (recommended) Vcc 4.5 15 V TA=25℃ 3
Max input voltage Vth, Vtrig, VCTRL, Vreset (lower limit -0.3; upper limit Vcc+0.3) Vth, Vtrig, VCTRL, Vreset -0.3 V TA=25℃ 3
Supply voltage Vcc (absolute maximum) Vcc 15 V 3
Operating temperature range Toper -40 85 ℃ 3
Junction temperature Tj 150 ℃ 3
Storage temperature range Tstg -50 150 ℃ 3
Lead temperature (soldering) TLEAD 260 ℃ soldering 10s 3

CAD (KiCad official)

  • Symbol: TLC555N
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: tlc555n-etched.step / tlc555n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc555n.step / tlc555n.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HGSEMI datasheet (11 pp, sha256 777c468f30a3b658, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF