component
DS3487N
Public Unreviewedby Ray
HGSEMI RS-485 / RS-422 ICs, DIP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDS3487N
HGSEMI · RS-485 / RS-422 ICs · DIP-16
DS3487N from HGSEMI, in a DIP-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 data input for driver channel A. Drives non-inverting output high and inverting output low when logic high (VIH >= 2.0V); PNP-buffered to minimize input loading. |
| 2 | OUTPUT_A_NI | tri_state | Non-inverting differential line-driver output for channel A. Drives VOH >= 2.5V at IOH = -20 mA or VOL <= 0.5V at IOL = 48 mA; enters high impedance when A/B control (pin 4) is low. |
| 3 | OUTPUT_A_INV | tri_state | Inverting differential line-driver output for channel A. Complement of pin 2; enters TRI-STATE when A/B control (pin 4) is low. Meets EIA RS-422 differential output voltage VT >= 2.0V. |
| 4 | A/B_CONTROL | input | Active-high output enable shared by drivers A and B. When high, both A and B differential outputs are enabled; when low, both A and B outputs are forced to TRI-STATE (high impedance). |
| 5 | OUTPUT_B_INV | tri_state | Inverting differential line-driver output for channel B. Complement of pin 6; enters TRI-STATE when A/B control (pin 4) is low. |
| 6 | OUTPUT_B_NI | tri_state | Non-inverting differential line-driver output for channel B. Drives VOH >= 2.5V at IOH = -20 mA or VOL <= 0.5V at IOL = 48 mA; enters TRI-STATE when A/B control (pin 4) is low. |
| 7 | INPUT_B | input | TTL-compatible data input for driver channel B. VIL <= 0.8V, VIH >= 2.0V; PNP-buffered so IIL is typically only a small microamp-level load. |
| 8 | GND | power_in | Device ground (0V) reference for all inputs, outputs, and the internal logic. |
| 9 | INPUT_C | input | TTL-compatible data input for driver channel C. VIL <= 0.8V, VIH >= 2.0V; PNP-buffered input to minimize source loading. |
| 10 | OUTPUT_C_NI | tri_state | Non-inverting differential line-driver output for channel C. Drives VOH >= 2.5V at IOH = -20 mA or VOL <= 0.5V at IOL = 48 mA; enters TRI-STATE when C/D control (pin 12) is low. |
| 11 | OUTPUT_C_INV | tri_state | Inverting differential line-driver output for channel C. Complement of pin 10; enters TRI-STATE when C/D control (pin 12) is low. |
| 12 | C/D_CONTROL | input | Active-high output enable shared by drivers C and D. When high, both C and D differential outputs are enabled; when low, both C and D outputs are forced to TRI-STATE (high impedance). |
| 13 | OUTPUT_D_INV | tri_state | Inverting differential line-driver output for channel D. Complement of pin 14; enters TRI-STATE when C/D control (pin 12) is low. |
| 14 | OUTPUT_D_NI | tri_state | Non-inverting differential line-driver output for channel D. Drives VOH >= 2.5V at IOH = -20 mA or VOL <= 0.5V at IOL = 48 mA; enters TRI-STATE when C/D control (pin 12) is low. |
| 15 | INPUT_D | input | TTL-compatible data input for driver channel D. VIL <= 0.8V, VIH >= 2.0V; PNP-buffered input to minimize source loading. |
| 16 | VCC | power_in | Positive supply rail, 4.75 V to 5.25 V (nominal 5 V). Typical ICC = 50 mA active, 35 mA in TRI-STATE; bypass locally to GND (pin 8) with a 0.1 uF ceramic capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-16 |
| Category | Interface |
| Pins | 16 |
Ordering variants
Same part, different packaging or reel option.
DS3487NNDS3487NM/TRDS3487NMT/TR
CAD (KiCad official)
- Symbol:
DS3487N - Footprint:
Package_DIP:DIP-16_W7.62mm - 3D model: DIP-16 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (None pp, sha256
34ce555d2e59d400, 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).