AM26LS32AIDR 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	1B	input	Channel 1 RS-422/RS-485 differential input (inverting). Input impedance ≥12 kΩ. Common-mode range ±7 V with ±200 mV sensitivity.
2	1A	input	Channel 1 RS-422/RS-485 differential input (noninverting). Input impedance ≥12 kΩ. Common-mode range ±7 V with ±200 mV sensitivity.
3	1Y	tri_state	Channel 1 logic-level (single-ended CMOS/TTL) receiver output. 3-state; disabled when G is low or G-bar is high. IOH = -440 µA, IOL = 8 mA.
4	G	input	Active-high output enable. When G is high (and G-bar is low), all four Y outputs are enabled; otherwise outputs are high-impedance.
5	2Y	tri_state	Channel 2 logic-level receiver output. 3-state; controlled by G / G-bar enables.
6	2A	input	Channel 2 RS-422/RS-485 differential input (noninverting). Input impedance ≥12 kΩ.
7	2B	input	Channel 2 RS-422/RS-485 differential input (inverting). Input impedance ≥12 kΩ.
8	GND	power_in	Device ground / negative supply reference.
9	3B	input	Channel 3 RS-422/RS-485 differential input (inverting). Input impedance ≥12 kΩ.
10	3A	input	Channel 3 RS-422/RS-485 differential input (noninverting). Input impedance ≥12 kΩ.
11	3Y	tri_state	Channel 3 logic-level receiver output. 3-state; controlled by G / G-bar enables.
12	~{G}	input	Active-low output enable (G-bar). When G-bar is low (and G is high), all four Y outputs are enabled; otherwise outputs are high-impedance.
13	4Y	tri_state	Channel 4 logic-level receiver output. 3-state; controlled by G / G-bar enables.
14	4A	input	Channel 4 RS-422/RS-485 differential input (noninverting). Input impedance ≥12 kΩ.
15	4B	input	Channel 4 RS-422/RS-485 differential input (inverting). Input impedance ≥12 kΩ.
16	VCC	power_in	Positive supply. 4.75 V to 5.25 V (AM26LS32AI industrial grade); 5 V nominal.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-16
Category	Interface
Pins	16

Ordering variants

AM26LS32AIDRD
AM26LS32AIDR
AM26LS32AIDRN
AM26LS32AIDRNR
AM26LS32AIDRNS
AM26LS32AIDRNSR
AM26LS32AIDRPW
AM26LS32AIDRPWR
AM26LS32AIDRJ
AM26LS32AIDRFK

CAD (KiCad official)

Symbol: AM26LS32AIDR
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
`am26ls32aidr.step`	217 KB	You want the bare part, or you mark your own boards.
`am26ls32aidr-etched.step`	2.8 MB	You want the part with `AM26LS32AIDR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 704 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 (35 pp, sha256 129c945e2b2c2a5c, 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