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ds3487m

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by Ray

HGSEMI RS-485 / RS-422 ICs, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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DS3487M

HGSEMI · RS-485 / RS-422 ICs · SOP-16

DS3487M 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 INPUT_A input TTL-compatible logic input for driver A. PNP-buffered to minimize input loading; VIL max 0.8 V, VIH min 2.0 V, IIL max -200 µA at 0.5 V.
2 OUTPUT_A tri_state Non-inverting differential output of driver A (one half of RS-422 output pair A). Follows INPUT_A when A/B CONTROL is high; forced to high-Z when A/B CONTROL is low. VOH >= 2.5 V @ IOH = -20 mA, VOL <= 0.5 V @ IOL = 48 mA.
3 /OUTPUT_A tri_state Inverting differential output of driver A (complementary half of RS-422 output pair A). Opposite polarity to pin 2; forced to high-Z when A/B CONTROL is low. Differential output voltage VT >= 2.0 V.
4 A/B_CONTROL input Shared active-high output-enable for drivers A and B. High enables both A and B differential outputs; low places both A and B outputs into TRI-STATE (high impedance). TTL-compatible input.
5 OUTPUT_B tri_state Non-inverting differential output of driver B. Follows INPUT_B when A/B CONTROL is high; forced to high-Z when A/B CONTROL is low.
6 /OUTPUT_B tri_state Inverting differential output of driver B. Opposite polarity to pin 5; forced to high-Z when A/B CONTROL is low.
7 INPUT_B input TTL-compatible logic input for driver B. PNP-buffered; VIL max 0.8 V, VIH min 2.0 V.
8 GND power_in Ground reference (0 V) for the device. All voltages are referenced to this pin.
9 INPUT_C input TTL-compatible logic input for driver C. PNP-buffered; VIL max 0.8 V, VIH min 2.0 V.
10 OUTPUT_C tri_state Non-inverting differential output of driver C. Follows INPUT_C when C/D CONTROL is high; forced to high-Z when C/D CONTROL is low. VOH >= 2.5 V @ IOH = -20 mA, VOL <= 0.5 V @ IOL = 48 mA.
11 /OUTPUT_C tri_state Inverting differential output of driver C. Opposite polarity to pin 10; forced to high-Z when C/D CONTROL is low.
12 C/D_CONTROL input Shared active-high output-enable for drivers C and D. High enables both C and D differential outputs; low places both C and D outputs into TRI-STATE (high impedance). TTL-compatible input.
13 /OUTPUT_D tri_state Inverting differential output of driver D. Opposite polarity to pin 14; forced to high-Z when C/D CONTROL is low.
14 OUTPUT_D tri_state Non-inverting differential output of driver D. Follows INPUT_D when C/D CONTROL is high; forced to high-Z when C/D CONTROL is low.
15 INPUT_D input TTL-compatible logic input for driver D. PNP-buffered; VIL max 0.8 V, VIH min 2.0 V.
16 VCC power_in Positive 5 V supply pin. Operating range 4.75 V to 5.25 V; absolute max 8 V. Active supply current typically 50 mA (80 mA max); 35 mA typical in TRI-STATE.

Key specifications

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

Ordering variants

  • DS3487MM/TR
  • DS3487MN
  • DS3487MMT/TR

CAD (KiCad official)

  • Symbol: DS3487M
  • 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 (None pp, sha256 1926ce34a1de6569, 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

Symbol & Footprint

Schematic Symbol

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