component
74HCT126T14-13
Public Made by Adomby adom
Diodes Incorporated Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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74HCT126T14-13
Diodes Incorporated · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
74HCT126T14-13 from Diodes Incorporated, in a TSSOP-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 | 1OE | input | Active-high data enable input; a low logic level places output 1Y in the high-impedance state. |
| 2 | 1A | input | Data input for buffer 1, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 3 | 1Y | output | Data output of buffer 1, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 4 | 2OE | input | Active-high data enable input; a low logic level places output 2Y in the high-impedance state. |
| 5 | 2A | input | Data input for buffer 2, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 6 | 2Y | output | Data output of buffer 2, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 7 | GND | power_in | Ground reference pin for the device. |
| 8 | 3Y | output | Data output of buffer 3, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 9 | 3A | input | Data input for buffer 3, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 10 | 3OE | input | Active-high data enable input; a low logic level places output 3Y in the high-impedance state. |
| 11 | 4Y | output | Data output of buffer 4, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 12 | 4A | input | Data input for buffer 4, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 13 | 4OE | input | Active-high data enable input; a low logic level places output 4Y in the high-impedance state. |
| 14 | VCC | power_in | Supply voltage pin, specified for 4.5 V to 5.5 V operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TSSOP-14 |
| Category | Logic |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 5.5 | V | 3 | ||
| Input Voltage | VI | 0 | V | 3 | |||
| Output Voltage | VO | 0 | V | 3 | |||
| Input Transition Rise or Fall Rate | Δt/ΔV | 500 | ns/V | VCC = 4.5V to 5.5V | 3 | ||
| Operating Free-Air Temperature | TA | -40 | 125 | °C | 3 | ||
| ESD Human Body Model ESD Protection | ESD HBM | 2 | KV | 3 | |||
| ESD Charged Device Model ESD Protection | ESD CDM | 1 | KV | 3 | |||
| ESD Machine Model ESD Protection | ESD MM | 200 | V | 3 | |||
| Supply Voltage Range | VCC | -0.5 | 7 | V | 3 | ||
| Input Voltage Range | VI | -0.5 | 7 | V | 3 | ||
| Input Clamp Current | IIK | -20 | 20 | mA | VI < -0.5V or Vi > VCC +0.5V | 3 | |
| Output Clamp Current | IOK | -20 | 20 | mA | VO < -0.5V or VO > VCC +0.5V | 3 | |
| Continuous Output Current | IO | -25 | 25 | mA | -0.5V < VO VCC +0.5V | 3 | |
| Continuous Current Through VCC | ICC | 50 | mA | 3 | |||
| Continuous Current Through GND | IGND | -50 | mA | 3 | |||
| Operating Junction Temperature | TJ | -40 | 150 | °C | 3 | ||
| Storage Temperature | TSTG | -65 | 150 | °C | 3 | ||
| Total Power Dissipation | PTOT | 500 | mW | 3 | |||
| High-level Input Voltage | VIH | 2 | V | VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 | ||
| Low-level Input Voltage | VIL | 0.8 | V | VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 | ||
| High-level Output Voltage | VOH | 4.4 | V | IOH = -20μA, VCC 4.5V; TA = -40°C to +85°C | 3 | ||
| High-level Output Voltage | VOH | 3.84 | V | IOH = -4mA, VCC 4.5V; TA = -40°C to +85°C | 3 | ||
| High-level Output Voltage | VOH | 3.7 | V | IOH = -4mA, VCC 4.5V; TA = -40°C to +125°C | 3 | ||
| Low-level Output Voltage | VOL | 0.1 | V | IOL = 20μA, VCC 4.5V; TA = -40°C to +85°C | 3 | ||
| Low-level Output Voltage | VOL | 0.33 | V | IOL = 4.0mA, VCC 4.5V; TA = -40°C to +85°C | 3 | ||
| Low-level Output Voltage | VOL | 0.4 | V | IOL = 4.0mA, VCC 4.5V; TA = -40°C to +125°C | 3 | ||
| Z State Leakage Current | IOZ | -5 | 5 | μA | VO = 0 to 5.5V, VCC 5.5V; TA = -40°C to +85°C | 3 | |
| Z State Leakage Current | IOZ | -10 | 10 | μA | VO = 0 to 5.5V, VCC 5.5V; TA = -40°C to +125°C | 3 | |
| Input Current | II | -1 | 1 | μA | VI = GND to 6.0V, VCC 6.0V; TA = -40°C to +85°C | 3 | |
| Supply Current | ICC | 20 | μA | VI = GND or VCC, IO = 0, VCC 6.0V; TA = -40°C to +85°C | 3 | ||
| Supply Current | ICC | 40 | μA | VI = GND or VCC, IO = 0, VCC 6.0V; TA = -40°C to +125°C | 3 | ||
| Additional Supply Current | ΔICC | 675 | μA | One Input at VCC -2.1V, Other Pins at VCC or GND, VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 | ||
| Additional Supply Current | ΔICC | 735 | μA | One Input at VCC -2.1V, Other Pins at VCC or GND, VCC 4.5V to 5.5V; TA = -40°C to +125°C | 3 | ||
| Propagation Delay AN to YN | tPD | 15 | 25 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 | |
| Propagation Delay AN to YN | tPD | 15 | 31 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 | |
| Propagation Delay AN to YN | tPD | 15 | 38 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 | |
| Enable Time OEN to YN | tEN | 15 | 28 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 | |
| Enable Time OEN to YN | tEN | 15 | 35 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 | |
| Enable Time OEN to YN | tEN | 15 | 42 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 | |
| Disable Time OEN to YN | tDIS | 15 | 25 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 | |
| Disable Time OEN to YN | tDIS | 15 | 31 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 | |
| Disable Time OEN to YN | tDIS | 15 | 38 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 | |
| Transition Time | tt | 5 | 12 | ns | TA = +25°C | 4 | |
| Transition Time | tt | 5 | 15 | ns | TA = -40°C to +85°C | 4 | |
| Transition Time | tt | 5 | 18 | ns | TA = -40°C to +125°C | 4 |
CAD (KiCad official)
- Symbol:
74HCT126T14-13 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
74hct126t14-13-etched.step/74hct126t14-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74hct126t14-13.step/74hct126t14-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (8 pp, sha256
3b912e2a8f02393c, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# 74HCT126T14-13
**Diodes Incorporated** · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
74HCT126T14-13 from Diodes Incorporated, in a TSSOP-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 | 1OE | input | Active-high data enable input; a low logic level places output 1Y in the high-impedance state. |
| 2 | 1A | input | Data input for buffer 1, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 3 | 1Y | output | Data output of buffer 1, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 4 | 2OE | input | Active-high data enable input; a low logic level places output 2Y in the high-impedance state. |
| 5 | 2A | input | Data input for buffer 2, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 6 | 2Y | output | Data output of buffer 2, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 7 | GND | power_in | Ground reference pin for the device. |
| 8 | 3Y | output | Data output of buffer 3, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 9 | 3A | input | Data input for buffer 3, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 10 | 3OE | input | Active-high data enable input; a low logic level places output 3Y in the high-impedance state. |
| 11 | 4Y | output | Data output of buffer 4, which is 3-state and can sink or source 4 mA at VCC = 4.5 V. |
| 12 | 4A | input | Data input for buffer 4, with Schmitt trigger action at all inputs and TTL-level compatibility. |
| 13 | 4OE | input | Active-high data enable input; a low logic level places output 4Y in the high-impedance state. |
| 14 | VCC | power_in | Supply voltage pin, specified for 4.5 V to 5.5 V operation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TSSOP-14 |
| Category | Logic |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | | 5.5 | V | | 3 |
| Input Voltage | VI | 0 | | | V | | 3 |
| Output Voltage | VO | 0 | | | V | | 3 |
| Input Transition Rise or Fall Rate | Δt/ΔV | | | 500 | ns/V | VCC = 4.5V to 5.5V | 3 |
| Operating Free-Air Temperature | TA | -40 | | 125 | °C | | 3 |
| ESD Human Body Model ESD Protection | ESD HBM | | | 2 | KV | | 3 |
| ESD Charged Device Model ESD Protection | ESD CDM | | | 1 | KV | | 3 |
| ESD Machine Model ESD Protection | ESD MM | | | 200 | V | | 3 |
| Supply Voltage Range | VCC | -0.5 | | 7 | V | | 3 |
| Input Voltage Range | VI | -0.5 | | 7 | V | | 3 |
| Input Clamp Current | IIK | -20 | | 20 | mA | VI < -0.5V or Vi > VCC +0.5V | 3 |
| Output Clamp Current | IOK | -20 | | 20 | mA | VO < -0.5V or VO > VCC +0.5V | 3 |
| Continuous Output Current | IO | -25 | | 25 | mA | -0.5V < VO VCC +0.5V | 3 |
| Continuous Current Through VCC | ICC | | | 50 | mA | | 3 |
| Continuous Current Through GND | IGND | -50 | | | mA | | 3 |
| Operating Junction Temperature | TJ | -40 | | 150 | °C | | 3 |
| Storage Temperature | TSTG | -65 | | 150 | °C | | 3 |
| Total Power Dissipation | PTOT | | | 500 | mW | | 3 |
| High-level Input Voltage | VIH | 2 | | | V | VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 |
| Low-level Input Voltage | VIL | | | 0.8 | V | VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 |
| High-level Output Voltage | VOH | 4.4 | | | V | IOH = -20μA, VCC 4.5V; TA = -40°C to +85°C | 3 |
| High-level Output Voltage | VOH | 3.84 | | | V | IOH = -4mA, VCC 4.5V; TA = -40°C to +85°C | 3 |
| High-level Output Voltage | VOH | 3.7 | | | V | IOH = -4mA, VCC 4.5V; TA = -40°C to +125°C | 3 |
| Low-level Output Voltage | VOL | | | 0.1 | V | IOL = 20μA, VCC 4.5V; TA = -40°C to +85°C | 3 |
| Low-level Output Voltage | VOL | | | 0.33 | V | IOL = 4.0mA, VCC 4.5V; TA = -40°C to +85°C | 3 |
| Low-level Output Voltage | VOL | | | 0.4 | V | IOL = 4.0mA, VCC 4.5V; TA = -40°C to +125°C | 3 |
| Z State Leakage Current | IOZ | -5 | | 5 | μA | VO = 0 to 5.5V, VCC 5.5V; TA = -40°C to +85°C | 3 |
| Z State Leakage Current | IOZ | -10 | | 10 | μA | VO = 0 to 5.5V, VCC 5.5V; TA = -40°C to +125°C | 3 |
| Input Current | II | -1 | | 1 | μA | VI = GND to 6.0V, VCC 6.0V; TA = -40°C to +85°C | 3 |
| Supply Current | ICC | | | 20 | μA | VI = GND or VCC, IO = 0, VCC 6.0V; TA = -40°C to +85°C | 3 |
| Supply Current | ICC | | | 40 | μA | VI = GND or VCC, IO = 0, VCC 6.0V; TA = -40°C to +125°C | 3 |
| Additional Supply Current | ΔICC | | | 675 | μA | One Input at VCC -2.1V, Other Pins at VCC or GND, VCC 4.5V to 5.5V; TA = -40°C to +85°C | 3 |
| Additional Supply Current | ΔICC | | | 735 | μA | One Input at VCC -2.1V, Other Pins at VCC or GND, VCC 4.5V to 5.5V; TA = -40°C to +125°C | 3 |
| Propagation Delay AN to YN | tPD | | 15 | 25 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 |
| Propagation Delay AN to YN | tPD | | 15 | 31 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 |
| Propagation Delay AN to YN | tPD | | 15 | 38 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 |
| Enable Time OEN to YN | tEN | | 15 | 28 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 |
| Enable Time OEN to YN | tEN | | 15 | 35 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 |
| Enable Time OEN to YN | tEN | | 15 | 42 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 |
| Disable Time OEN to YN | tDIS | | 15 | 25 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = +25°C | 4 |
| Disable Time OEN to YN | tDIS | | 15 | 31 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +85°C | 4 |
| Disable Time OEN to YN | tDIS | | 15 | 38 | ns | Figure 1, CL = 50pF, VCC 4.5V; TA = -40°C to +125°C | 4 |
| Transition Time | tt | | 5 | 12 | ns | TA = +25°C | 4 |
| Transition Time | tt | | 5 | 15 | ns | TA = -40°C to +85°C | 4 |
| Transition Time | tt | | 5 | 18 | ns | TA = -40°C to +125°C | 4 |
## CAD (KiCad official)
- Symbol: `74HCT126T14-13`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `74hct126t14-13-etched.step` / `74hct126t14-13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74hct126t14-13.step` / `74hct126t14-13.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588928098913947648) (8 pp, sha256 `3b912e2a8f02393c`, retrieved 2026-10-21, tier: lcsc)
- **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](docs/74hct126t14-13-datasheet.pdf)