component
HGC555IM
Public Made by Adomby adom
HGSEMI Timers / Counters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownHGC555IM
HGSEMI · Timers / Counters · SOP-8
HGC555IM from HGSEMI, in a SOP-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 referenced to GND. |
| 2 | TRIGGER | input | Active-low trigger input; output goes high when TRIGGER is below 1/3 VCC, with input range -0.3 V to VCC+0.3 V. |
| 3 | OUTPUT | output | Timer output that can source and sink current to drive TTL/CMOS, with recommended output current up to 20 mA (100 mA absolute maximum). |
| 4 | RESET | input | Active-low reset input; a low level forces OUTPUT low and turns the discharge on, with input range -0.3 V to VCC+0.3 V. |
| 5 | CONTROL VOLTAGE | passive | Control voltage node that sets the threshold level (about 2/3 VCC) and needs no decoupling for stable operation. |
| 6 | THRESHOLD | input | Threshold input; output goes low when THRESHOLD exceeds 2/3 VCC, with input range -0.3 V to VCC+0.3 V. |
| 7 | DISCHARGE | passive | Discharge output that is ON when OUTPUT is low and OFF when OUTPUT is high, used to discharge the timing capacitor. |
| 8 | VCC | power_in | Positive supply, recommended 2.0 V to 18.0 V (absolute maximum 18.0 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOP-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 Voltage | VCC | 2 | 18 | V | 3 | ||
| Supply Voltage | VCC | 0 | 18 | V | 3 | ||
| Output Current | IO | 20 | mA | 3 | |||
| Output Current | IO | 100 | mA | 3 | |||
| Input Voltage (VTH, VTRIG, VRST) | VTH, VTRIG, VRST | -0.3 | V | 3 | |||
| Power Dissipation | PD | 200 | mW | 3 | |||
| Operating Temperature | TOPR | -40 | 85 | °C | 3 | ||
| Operating Temperature | TOPR | -40 | 85 | °C | 3 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 3 | ||
| Lead Temperature | TSOLDER | 245 | °C | 1 mm from case for 10 seconds | 3 | ||
| Threshold Voltage | VTH | 0.65 | 0.7 | x VCC | VCC = 5.0 V, 25±10 °C | 4 | |
| Threshold Voltage | VTH | 0.6 | 0.8 | x VCC | VCC = 5.0 V, -20, 70 °C | 4 | |
| Trigger Voltage | VTRIG | 0.31 | 0.36 | x VCC | VCC = 5.0 V, 25±10 °C | 4 | |
| Trigger Voltage | VTRIG | 0.28 | 0.4 | x VCC | VCC = 5.0 V, -20, 70 °C | 4 | |
| Reset Voltage | VRST | 0.4 | 1 | V | VCC = 2.0 V, 25±10 °C | 4 | |
| Reset Voltage | VRST | 0.2 | 1.5 | V | VCC = 2.0 V, -20, 70 °C | 4 | |
| Control Voltage | VCV | 0.65 | 0.69 | x VCC | 25±10 °C | 4 | |
| Control Voltage | VCV | 0.6 | 0.8 | x VCC | -20, 70 °C | 4 | |
| Output Voltage Low | VOL | 0.4 | V | IOL = 3.2 mA, VCC = 5.0 V, 25±10 °C | 4 | ||
| Output Voltage Low | VOL | 1 | V | IOL = 20 mA, VCC = 15.0 V, 25±10 °C | 4 | ||
| Output Voltage Low | VOL | 0.6 | V | IOL = 3.2 mA, VCC = 5.0 V, -20, 70 °C | 4 | ||
| Output Voltage Low | VOL | 1.5 | V | IOL = 20 mA, VCC = 15.0 V, -20, 70 °C | 4 | ||
| Output Voltage High | VOH | 4 | V | IOH = -0.8 mA, VCC = 5.0 V, 25±10 °C | 4 | ||
| Output Voltage High | VOH | 14.3 | V | IOH = -0.8 mA, VCC = 15.0 V, 25±10 °C | 4 | ||
| Output Voltage High | VOH | 3.5 | V | IOH = -0.8 mA, VCC = 5.0 V, -20, 70 °C | 4 | ||
| Output Voltage High | VOH | 14 | V | IOH = -0.8 mA, VCC = 15.0 V, -20, 70 °C | 4 | ||
| Supply Current | ICC | 200 | µA | VCC = 2.0 V, 25±10 °C | 4 | ||
| Supply Current | ICC | 300 | µA | VCC = 18.0 V, 25±10 °C | 4 | ||
| Supply Current | ICC | 400 | µA | VCC = 2.0 V, -20, 70 °C | 4 | ||
| Supply Current | ICC | 600 | µA | VCC = 18.0 V, -20, 70 °C | 4 | ||
| Rise (Fall) Time of Output | tTHL, tTLH | 35 | 75 | ns | RL = 10 M, CL = 10 pF, VCC = 5.0 V, 25±10 °C | 5 | |
| Rise (Fall) Time of Output | tTHL, tTLH | 70 | 150 | ns | RL = 10 M, CL = 10 pF, VCC = 5.0 V, -20, 70 °C | 5 | |
| Guaranteed Max Oscillator Frequency, astable | fMAX | 500 | kHz | Astable operation, VCC = 2.0-18.0 V, 25±10 °C | 5 | ||
| Guaranteed Max Oscillator Frequency, astable | fMAX | 200 | kHz | Astable operation, VCC = 2.0-18.0 V, -20, 70 °C | 5 | ||
| Initial accuracy | 5 | % | RL = 1-100 k, CL = 0.1 µF, VCC = 5 V | 5 | |||
| Drift with Temperature | f | 0.02 | %/°C | VCC = 5.0 V, -20, 70 °C | 5 | ||
| Drift with Temperature | f | 0.03 | %/°C | VCC = 10.0 V, -20, 70 °C | 5 | ||
| Drift with Temperature | f | 0.06 | %/°C | VCC = 15.0 V, -20, 70 °C | 5 | ||
| Drift with Supply Voltage | f | 3 | %/V | VCC = 5.0 V, 25±10 °C | 5 | ||
| Drift with Supply Voltage | f | 6 | %/V | VCC = 5.0 V, -20, 70 °C | 5 |
CAD (KiCad official)
- Symbol:
HGC555IM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
hgc555im-etched.step/hgc555im-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hgc555im.step/hgc555im.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (9 pp, sha256
7d27a57bcd8b37f6, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).