DS34C86M from HGSEMI, in a SOP-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	IN_A-	input	Receiver A inverting differential input. Part of the balanced RS-422/RS-423 pair for channel A; ±0.2 V sensitivity over ±7 V common mode.
2	IN_A+	input	Receiver A non-inverting differential input. Part of the balanced RS-422/RS-423 pair for channel A.
3	OUT_A	tri_state	Receiver A TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL A/C (pin 4).
4	EN_AC	input	TRI-STATE CONTROL A/C enable input. Independently enables the output buffers of receivers A and C. VIH = 2.0 V min, VIL = 0.8 V max; input rise/fall time ≤ 500 ns.
5	OUT_C	tri_state	Receiver C TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL A/C (pin 4).
6	IN_C+	input	Receiver C non-inverting differential input. Balanced RS-422/RS-423 pair for channel C.
7	IN_C-	input	Receiver C inverting differential input. Balanced RS-422/RS-423 pair for channel C.
8	GND	power_in	Ground reference for the device (0 V).
9	IN_D-	input	Receiver D inverting differential input. Balanced RS-422/RS-423 pair for channel D.
10	IN_D+	input	Receiver D non-inverting differential input. Balanced RS-422/RS-423 pair for channel D.
11	OUT_D	tri_state	Receiver D TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL B/D (pin 12).
12	EN_BD	input	TRI-STATE CONTROL B/D enable input. Independently enables the output buffers of receivers B and D. VIH = 2.0 V min, VIL = 0.8 V max; input rise/fall time ≤ 500 ns.
13	OUT_B	tri_state	Receiver B TRI-STATE CMOS output. Sources/sinks 6 mA; enabled by TRI-STATE CONTROL B/D (pin 12).
14	IN_B+	input	Receiver B non-inverting differential input. Balanced RS-422/RS-423 pair for channel B.
15	IN_B-	input	Receiver B inverting differential input. Balanced RS-422/RS-423 pair for channel B.
16	VCC	power_in	Positive supply input. Operating range 4.75 V to 5.25 V (5 V nominal); ICC ≈ 12 mA typical.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOP-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

DS34C86MM/TR
DS34C86MN
DS34C86MMT/TR

CAD (KiCad official)

Symbol: DS34C86M
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: HGSEMI datasheet (8 pp, sha256 d4babb4ce8ad392f, retrieved 2026-08-17, tier: lcsc)
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