AM26LV31IDR from Texas Instruments, in a SOIC-16. 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	1A	input	Driver 1 single-ended logic input. Accepts 3.3V CMOS (and 5V-tolerant) logic levels; VIH ≥ 2V, VIL ≤ 0.8V.
2	1Y	output	Driver 1 non-inverting differential output. Balanced-bus line driver capable of ±30 mA drive into a 100Ω differential load; 3-state controlled by enables G/G-bar.
3	1Z	output	Driver 1 inverted differential output. Complement of 1Y; forms the differential pair for channel 1. 3-state, ±30 mA drive.
4	G	input	Active-high enable common to all four drivers. When G=H and G-bar=L, all outputs are enabled; otherwise outputs are high-impedance.
5	2Z	output	Driver 2 inverted differential output. 3-state; ±30 mA drive into 100Ω load.
6	2Y	output	Driver 2 non-inverting differential output. 3-state; ±30 mA drive into 100Ω load.
7	2A	input	Driver 2 single-ended logic input. 3.3V CMOS / 5V-tolerant.
8	GND	power_in	Device ground reference. All voltages are with respect to this pin.
9	3A	input	Driver 3 single-ended logic input. 3.3V CMOS / 5V-tolerant.
10	3Y	output	Driver 3 non-inverting differential output. 3-state; ±30 mA drive into 100Ω load.
11	3Z	output	Driver 3 inverted differential output. 3-state; ±30 mA drive into 100Ω load.
12	G_N	input	Active-low enable (G-bar) common to all four drivers. When G-bar=L and G=H all outputs are enabled; otherwise all outputs are high-impedance.
13	4Z	output	Driver 4 inverted differential output. 3-state; ±30 mA drive into 100Ω load.
14	4Y	output	Driver 4 non-inverting differential output. 3-state; ±30 mA drive into 100Ω load.
15	4A	input	Driver 4 single-ended logic input. 3.3V CMOS / 5V-tolerant.
16	VCC	power_in	Supply voltage input. Recommended operating range 3.0V to 3.6V (3.3V nominal). Bypass close to the pin to GND.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-16
Category	Comm/UART
Pins	16

Ordering variants

Same part, different packaging or reel option.

AM26LV31IDR
AM26LV31IDRCDR
AM26LV31IDRCD
AM26LV31IDRINSR
AM26LV31IDRINS
AM26LV31IDRCNSR
AM26LV31IDRCNS

CAD (KiCad official)

Symbol: AM26LV31IDR
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`am26lv31idr.step`	217 KB	You want the bare part, or you mark your own boards.
`am26lv31idr-etched.step`	2.4 MB	You want the part with `AM26LV31IDR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 616 faces against 267 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Texas Instruments datasheet (25 pp, sha256 97b8126081310352, retrieved 2026-08-17, tier: manufacturer)
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).

Datasheet PDF