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LKIS1219SS
Public Made by Adomby adom
LKWIC Translators, Level Shifters, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLKIS1219SS
LKWIC · Translators, Level Shifters · TSSOP-20
LKIS1219SS from LKWIC, in a TSSOP-20. 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 | A1 | bidirectional | A-port data input/output channel 1, referenced to VCCA. |
| 2 | VCCA | power_in | A-port supply voltage, 1.4V to 3.6V (VCCA must be ≤ VCCB), absolute maximum 4.6V. |
| 3 | A2 | bidirectional | A-port data input/output channel 2, referenced to VCCA. |
| 4 | A3 | bidirectional | A-port data input/output channel 3, referenced to VCCA. |
| 5 | A4 | bidirectional | A-port data input/output channel 4, referenced to VCCA. |
| 6 | A5 | bidirectional | A-port data input/output channel 5, referenced to VCCA. |
| 7 | A6 | bidirectional | A-port data input/output channel 6, referenced to VCCA. |
| 8 | A7 | bidirectional | A-port data input/output channel 7, referenced to VCCA. |
| 9 | A8 | bidirectional | A-port data input/output channel 8, referenced to VCCA. |
| 10 | OE | input | Active-high output enable referenced to VCCA; when low all outputs are high-impedance, and it should be pulled down to GND for power-up/down. |
| 11 | GND | power_in | Ground. |
| 12 | B8 | bidirectional | B-port data input/output channel 8, referenced to VCCB. |
| 13 | B7 | bidirectional | B-port data input/output channel 7, referenced to VCCB. |
| 14 | B6 | bidirectional | B-port data input/output channel 6, referenced to VCCB. |
| 15 | B5 | bidirectional | B-port data input/output channel 5, referenced to VCCB. |
| 16 | B4 | bidirectional | B-port data input/output channel 4, referenced to VCCB. |
| 17 | B3 | bidirectional | B-port data input/output channel 3, referenced to VCCB. |
| 18 | B2 | bidirectional | B-port data input/output channel 2, referenced to VCCB. |
| 19 | VCCB | power_in | B-port supply voltage, 1.65V to 5.5V, absolute maximum 6.5V. |
| 20 | B1 | bidirectional | B-port data input/output channel 1, referenced to VCCB. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LKWIC |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCCA supply voltage (absolute maximum) | VCCA | -0.5 | 4.6 | V | 4 | ||
| VCCB supply voltage (absolute maximum) | VCCB | -0.5 | 6.5 | V | 4 | ||
| Input voltage A port (absolute maximum) | VI | -0.5 | 4.6 | V | A port | 4 | |
| Input voltage B port (absolute maximum) | VI | -0.5 | 6.5 | V | B port | 4 | |
| Input clamp current | IIK | -50 | mA | VI<0 | 4 | ||
| Output clamp current | IOK | -50 | mA | VO<0 | 4 | ||
| Continuous output current | IO | -50 | 50 | mA | 4 | ||
| Junction temperature | TJ | 150 | ℃ | 4 | |||
| Storage temperature | TSTG | -65 | 150 | ℃ | 5 | ||
| VCCA supply voltage | VCCA | 1.4 | 3.6 | V | 5 | ||
| VCCB supply voltage | VCCB | 1.65 | 5.5 | V | 5 | ||
| OE input high voltage | VIH | 5.5 | V | OE pin, VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| A/B port input low voltage | VIL | 0 | 0.15 | V | VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | |
| A port input transition rise or fall rate | Δt/ΔV | 40 | ns/V | VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| B port input transition rise or fall rate | Δt/ΔV | 30 | ns/V | VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| Operating temperature | TA | -55 | 125 | ℃ | 5 | ||
| A port output low voltage | VOLA | 0.4 | V | IOL= 20μA，VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| B port output low voltage | VOLB | 0.4 | V | IOL= 20μA，VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| OE input leakage current | II | -2 | 2 | μA | VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | |
| High-impedance output current | IOZ | -2 | 2 | μA | A 或 B 端，OE=GND，VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | |
| A port supply current | ICCA | 10 | μA | VI=VO=OPEN，IO=0，VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| A port supply current | ICCA | 5 | μA | VCCA=3.6V，VCCB=0V | 5 | ||
| A port supply current | ICCA | -2 | μA | VCCA=0V，VCCB=5.5V | 5 | ||
| B port supply current | ICCB | 10 | μA | VI=VO=OPEN，IO=0，VCCA=1.4V～3.6V，VCCB=1.65V～5.5V | 5 | ||
| B port supply current | ICCB | -2 | μA | VCCA=3.6V，VCCB=0V | 5 | ||
| B port supply current | ICCB | 5 | μA | VCCA=0V，VCCB=5.5V | 5 | ||
| A port high-impedance current | ICCZA | 5 | μA | VI=VCCI或 GND，IO=0，OE=GND | 5 | ||
| B port high-impedance current | ICCZB | 5 | μA | VI=VCCI或 GND，IO=0，OE=GND | 6 | ||
| Data rate | SR | 30 | Mbps | VCCA=1.5V±0.1V，VCCB=1.8V±0.15V | 6 | ||
| Data rate | SR | 52 | Mbps | VCCA=1.8V±0.15V，VCCB=1.8V±0.15V | 6 | ||
| Data rate | SR | 60 | Mbps | VCCA=1.8V±0.15V，VCCB=2.5V±0.2V | 6 | ||
| Data rate | SR | 100 | Mbps | VCCA=2.5V±0.2V，VCCB=3.3V±0.3V | 6 | ||
| Propagation delay A to B | tPD | 12.9 | ns | VCCA=1.5V±0.1V，VCCB=1.8V±0.15V | 6 | ||
| Propagation delay A to B | tPD | 10.1 | ns | VCCA=1.5V±0.1V，VCCB=2.5V±0.2V | 6 | ||
| Propagation delay A to B | tPD | 10 | ns | VCCA=1.5V±0.1V，VCCB=3.3V±0.3V | 6 | ||
| Propagation delay A to B | tPD | 9.9 | ns | VCCA=1.5V±0.1V，VCCB=5V±0.5V | 6 | ||
| Propagation delay A to B | tPD | 11 | ns | VCCA=1.8V±0.15V，VCCB=1.8V±0.15V | 6 | ||
| Propagation delay A to B | tPD | 7.7 | ns | VCCA=1.8V±0.15V，VCCB=2.5V±0.2V | 6 | ||
| Propagation delay A to B | tPD | 6.8 | ns | VCCA=1.8V±0.15V，VCCB=3.3V±0.3V | 6 | ||
| Propagation delay A to B | tPD | 6.5 | ns | VCCA=1.8V±0.15V，VCCB=5V±0.5V | 6 | ||
| Propagation delay A to B | tPD | 6.4 | ns | VCCA=2.5V±0.2V，VCCB=2.5V±0.2V | 6 | ||
| Propagation delay A to B | tPD | 5.3 | ns | VCCA=2.5V±0.2V，VCCB=3.3V±0.3V | 6 | ||
| Propagation delay A to B | tPD | 4.7 | ns | VCCA=2.5V±0.2V，VCCB=5V±0.5V | 6 | ||
| Propagation delay A to B | tPD | 4.9 | ns | VCCA=3.3V±0.3V，VCCB=3.3V±0.3V | 6 |
CAD (KiCad official)
- Symbol:
LKIS1219SS - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
lkis1219ss-etched.step/lkis1219ss-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lkis1219ss.step/lkis1219ss.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LKWIC datasheet (13 pp, sha256
2530358ee939eba6, retrieved 2026-10-17, 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, 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).