# TLC555DGKRG

**HANSCHIP semiconductor** · Timers / Counters · MSOP-8

TLC555DGKRG from HANSCHIP semiconductor, in a MSOP-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 reference for all datasheet voltages. |
| 2 | TRIGGER | input | Trigger input (active low); output goes high when TRIGGER is below 1/3 VCC. |
| 3 | OUTPUT | output | Timer output; high source/sink driver for TTL/CMOS, VOL max 0.4 V at IOL = 3.2 mA and VCC = 5 V, 25±10 °C. |
| 4 | RESET | input | Active-low reset; when low, forces OUTPUT low and turns DISCHARGE on regardless of other inputs. |
| 5 | CONTROL VOLTAGE | input | Control voltage input that adjusts the threshold level; datasheet states it needs no decoupling for stable operation. |
| 6 | THRESHOLD | input | Threshold input; with TRIGGER above 1/3 VCC, a level above 2/3 VCC drives OUTPUT low and turns DISCHARGE on. |
| 7 | DISCHARGE | output | 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 | HANSCHIP semiconductor |
| Package | MSOP-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 (recommended operating) | VCC | 2 |  | 18 | V |  | 3 |
| Output current (recommended operating) | IO |  |  | 20 | mA |  | 3 |
| Operating temperature (recommended operating) | TOPR | -40 |  | 85 | °C |  | 3 |
| Supply voltage (absolute maximum) | VCC | 0 |  | 18 | V |  | 3 |
| Output current (absolute maximum) | IO |  |  | 100 | mA |  | 3 |
| Input voltage VTH, VTRIG, VRST (absolute maximum) | VIN | -0.3 |  |  | V | Maximum printed as VCC+0.3 | 3 |
| Power dissipation | PD |  |  | 200 | mW |  | 3 |
| Operating temperature (absolute maximum) | TOPR | -40 |  | 85 | °C |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| Lead temperature (soldering) | TSOLDER |  |  | 245 | °C | 1 mm from case for 10 seconds | 3 |
| Threshold voltage | VTH | 0.65 |  | 0.7 | VCC | VCC 5.0 V, 25±10 °C; printed as 0.65 VCC / 0.70 VCC | 4 |
| Threshold voltage | VTH | 0.6 |  | 0.8 | VCC | VCC 5.0 V, -20, 70 °C; printed as 0.60 VCC / 0.80 VCC | 4 |
| Trigger voltage | VTRIG | 0.31 |  | 0.36 | VCC | VCC 5.0 V, 25±10 °C; printed as 0.31 VCC / 0.36 VCC | 4 |
| Trigger voltage | VTRIG | 0.28 |  | 0.4 | VCC | VCC 5.0 V, -20, 70 °C; printed as 0.28 VCC / 0.40 VCC | 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 | VCC | Temperature printed as 25 10 °C (± sign absent in print); printed as 0.65 VCC / 0.69 VCC | 4 |
| Control voltage | VCV | 0.6 |  | 0.8 | VCC | -20, 70 °C; printed as 0.60 VCC / 0.80 VCC | 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 MΩ, CL = 10 pF, VCC 5.0 V, 25±10 °C | 5 |
| Rise (fall) time of output | tTHL, tTLH | 70 |  | 150 | ns | RL = 10 MΩ, CL = 10 pF, VCC 5.0 V, -20, 70 °C | 5 |
| Guaranteed maximum oscillation frequency, astable | fMAX |  |  | 500 | kHz | Astable operation, VCC 2.0-18.0 V, 25±10 °C | 5 |
| Guaranteed maximum oscillation frequency, astable | fMAX |  |  | 200 | kHz | Astable operation, VCC 2.0-18.0 V, -20, 70 °C | 5 |

## CAD (KiCad official)

- Symbol: `TLC555DGKRG`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `tlc555dgkrg-etched.step` / `tlc555dgkrg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc555dgkrg.step` / `tlc555dgkrg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HANSCHIP semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757786772782751744) (9 pp, sha256 `59ff8742b6bde993`, retrieved 2026-10-17, tier: lcsc)
- **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](docs/tlc555dgkrg-datasheet.pdf)