component
CAHCT126QPWRG4Q1
Public Unreviewedby Ray
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
PCB Footprint
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
Datasheet
Open in new tab ↗Loads on click. Unloads when scrolled away or the tab is hidden.
README
markdownCAHCT126QPWRG4Q1
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-14
CAHCT126QPWRG4Q1 from Texas Instruments, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1OE | input | Output-enable input for buffer 1. When 1OE is high, the buffer passes 1A to 1Y; when low, 1Y is placed in the high-impedance (Hi-Z) state. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V. |
| 2 | 1A | input | Data input to buffer 1. Driven through the 3-state buffer to output 1Y when 1OE is high. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V, VI range 0-5.5 V. |
| 3 | 1Y | tri_state | 3-state output of buffer 1. Drives the buffered value of 1A when 1OE is high; Hi-Z when 1OE is low. Guaranteed drive is ±8 mA at VCC = 5 V (VOH ≥ 3.94 V, VOL ≤ 0.36 V). |
| 4 | 2OE | input | Output-enable input for buffer 2. When 2OE is high, the buffer passes 2A to 2Y; when low, 2Y is Hi-Z. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V. |
| 5 | 2A | input | Data input to buffer 2. Driven through the 3-state buffer to output 2Y when 2OE is high. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V, VI range 0-5.5 V. |
| 6 | 2Y | tri_state | 3-state output of buffer 2. Drives the buffered value of 2A when 2OE is high; Hi-Z when 2OE is low. Guaranteed drive is ±8 mA at VCC = 5 V. |
| 7 | GND | power_in | Ground reference for the device. Connect to the system ground plane; a local decoupling capacitor from VCC to GND is recommended. |
| 8 | 3Y | tri_state | 3-state output of buffer 3. Drives the buffered value of 3A when 3OE is high; Hi-Z when 3OE is low. Guaranteed drive is ±8 mA at VCC = 5 V. |
| 9 | 3A | input | Data input to buffer 3. Driven through the 3-state buffer to output 3Y when 3OE is high. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V, VI range 0-5.5 V. |
| 10 | 3OE | input | Output-enable input for buffer 3. When 3OE is high, the buffer passes 3A to 3Y; when low, 3Y is Hi-Z. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V. |
| 11 | 4Y | tri_state | 3-state output of buffer 4. Drives the buffered value of 4A when 4OE is high; Hi-Z when 4OE is low. Guaranteed drive is ±8 mA at VCC = 5 V. |
| 12 | 4A | input | Data input to buffer 4. Driven through the 3-state buffer to output 4Y when 4OE is high. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V, VI range 0-5.5 V. |
| 13 | 4OE | input | Output-enable input for buffer 4. When 4OE is high, the buffer passes 4A to 4Y; when low, 4Y is Hi-Z. TTL-compatible input; VIH ≥ 2 V, VIL ≤ 0.8 V. |
| 14 | VCC | power_in | Positive supply input. Operating range 4.5 V to 5.5 V; absolute maximum 7 V. Decouple to GND with a local ceramic capacitor (e.g. 100 nF) near the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Logic |
| Pins | 14 |
Ordering variants
Same part, different packaging or reel option.
CAHCT126QPWRG4Q1CAHCT126QPWRG4Q1DCAHCT126QPWRG4Q1DRCAHCT126QPWRG4Q1BQA
CAD (KiCad official)
- Symbol:
CAHCT126QPWRG4Q1 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
7161780ff9b93586, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).