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TLC556M

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HGSEMI Timers / Counters, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TLC556M

HGSEMI · Timers / Counters · SOP-14

TLC556M from HGSEMI, in a SOP-14. 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 DISCH1 passive Discharge pin for timer 1, which switches to ground through an internal discharge transistor; the datasheet gives a discharge output voltage of 0.2 V min and 0.4 V typ at 15 mA sink for VDD = 5 V and 15 V.
2 THRES1 input Threshold input for timer 1; the datasheet specifies a threshold voltage of 9.4 V min, 10 V typ and 10.6 V max at VDD = 15 V, and a threshold current of 50 nA max.
3 CONT1 passive Control voltage input for timer 1, which sets the internal comparator reference; the datasheet specifies a control voltage of 9.4 V min, 10 V typ and 10.6 V max at VDD = 15 V.
4 RESET1 input Active-low reset input for timer 1; the datasheet gives a reset voltage of 0.4 V min and 1.5 V max at VDD = 15 V, and a reset current of 50 nA max.
5 OUT1 output Output of timer 1; the datasheet gives VOH of 4.0 V min at 5 V and 14.3 V min at 15 V (ISOURCE = 0.8 mA), and VOL of 0.4 V max at 5 V (ISINK = 3.2 mA) and 1.0 V max at 15 V (ISINK = 20 mA).
6 TRIG1 input Trigger input for timer 1; the datasheet specifies a trigger voltage of 4.4 V min, 5 V typ and 5.6 V max at VDD = 15 V, and a trigger current of 50 nA max.
7 GND power_in Ground pin for the device; the datasheet lists it only as the ground terminal (接地端) with no further electrical limit.
8 TRIG2 input Trigger input for timer 2; the datasheet specifies a trigger voltage of 4.4 V min, 5 V typ and 5.6 V max at VDD = 15 V, and a trigger current of 50 nA max.
9 OUT2 output Output of timer 2; the datasheet gives VOH of 4.0 V min at 5 V and 14.3 V min at 15 V (ISOURCE = 0.8 mA), and VOL of 0.4 V max at 5 V (ISINK = 3.2 mA) and 1.0 V max at 15 V (ISINK = 20 mA).
10 RESET2 input Active-low reset input for timer 2; the datasheet gives a reset voltage of 0.4 V min and 1.5 V max at VDD = 15 V, and a reset current of 50 nA max.
11 CONT2 passive Control voltage input for timer 2, which sets the internal comparator reference; the datasheet specifies a control voltage of 9.4 V min, 10 V typ and 10.6 V max at VDD = 15 V.
12 THRES2 input Threshold input for timer 2; the datasheet specifies a threshold voltage of 9.4 V min, 10 V typ and 10.6 V max at VDD = 15 V, and a threshold current of 50 nA max.
13 DISCH2 passive Discharge pin for timer 2, which switches to ground through an internal discharge transistor; the datasheet gives a discharge output voltage of 0.2 V min and 0.4 V typ at 15 mA sink for VDD = 5 V and 15 V.
14 VDD power_in Positive supply pin; the datasheet gives an absolute maximum supply voltage of 18 V, and the quiescent current is 80 µA typ (200 µA max) at 5 V and 150 µA typ (300 µA max) at 15 V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-14
Category Clock/Timing
Pins 14

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Static supply current (VDD=5V) IDD 80 200 μA VDD=5V, TA=+25℃ 4
Static supply current (VDD=15V) IDD 150 300 μA VDD=15V, TA=+25℃ 4
Threshold voltage VTH 9.4 10 10.6 V VDD=15V, TA=+25℃ 4
Trigger voltage VTRIG 4.4 5 5.6 V VDD=15V, TA=+25℃ 4
Trigger current ITRIG 10 50 nA VDD=15V, TA=+25℃ 4
Threshold current ITH 10 50 nA VDD=15V, TA=+25℃ 4
Control voltage VCV 9.4 10 10.6 V VDD=15V, TA=+25℃ 4
Reset voltage VRST 0.4 1.5 V VDD=15V, TA=+25℃ 4
Reset current IRST 10 50 nA VDD=15V, TA=+25℃ 4
Discharge leakage current IDIS 10 50 nA VDD=15V, TA=+25℃ 4
Output high voltage VOH 4 4.3 V VDD=5V, ISOURCE=0.8mA, TA=+25℃ 4
Output high voltage VOH 14.3 14.6 V VDD=15V, ISOURCE=0.8mA, TA=+25℃ 4
Output low voltage VOL 0.2 0.4 V VDD=5V, ISINK=3.2mA, TA=+25℃ 4
Output low voltage VOL 0.4 1 V VDD=15V, ISINK=20mA, TA=+25℃ 4
Discharge output voltage VDIS 0.2 0.4 V VDD=5V, ISINK=15mA, TA=+25℃ 4
Operating temperature TA 0 70 ℃ 2
Supply voltage VDD 18 V 2
Maximum output current IOUT 100 mA 2
Maximum power dissipation PD 200 mW 2
Storage temperature Tstag -65 150 ℃ 2
Junction temperature TJ 150 ℃ 10s 2
Lead temperature (soldering) TLEAD 245 ℃ soldering, 10s 2
Rated power, SOP-14 PD 950 mW SOP-14, TA≤25C 3
Derating factor, SOP-14 7.6 mW/C SOP-14, above TA=25C 3
Rated power, SOP-14 at 70C PD 608 mW SOP-14, TA=70C 3
Rated power, SOP-14 at 85C PD 494 mW SOP-14, TA=85C 3

CAD (KiCad official)

  • Symbol: TLC556M
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOP-14 (KiCad packages3D, STEP)
  • 3D model files: tlc556m-etched.step / tlc556m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc556m.step / tlc556m.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (8 pp, sha256 51b5d5cacf031352, retrieved 2026-10-18, 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-haiku-5-5 (text), consensus claude-sonnet-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