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SIT65176BDR

Public Made by Adom

by adom

SIT RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SIT65176BDR

SIT · RS-485 / RS-422 ICs · SOP-8

SIT65176BDR from SIT, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RO output Receiver output: when /RE is low, RO is high if A-B is at or above 200 mV and low if A-B is at or below -200 mV.
2 /RE input Receiver output enable: drive low to enable RO, which is high impedance when /RE is high; driving /RE high and DE low enters low-power shutdown mode.
3 DE input Driver output enable: drive high to enable the driver outputs, which are high impedance when DE is low; driving /RE high and DE low enters low-power shutdown mode.
4 DI input Driver input: with DE high, a low on DI forces the non-inverting output low and the inverting output high, and a high on DI forces the non-inverting output high and the inverting output low.
5 GND power_in Ground reference for the device; all voltages are referenced to ground.
6 A bidirectional Non-inverting receiver input and non-inverting driver output on the bus, with bus-side input voltage rated from -15 V to +15 V.
7 B bidirectional Inverting receiver input and inverting driver output on the bus, with bus-side input voltage rated from -15 V to +15 V.
8 VCC power_in Positive supply, operating from 3.0 V to 5.5 V and rated to a absolute maximum of 7 V.

Key specifications

Parameter Value
Manufacturer SIT
Package SOP-8
Category Interface
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Differential output voltage (no load) VOD1 2.5 5.5 V 3
Differential output voltage VOD2 1.5 1.8 V Fig 2, RL = 54 Ω, VCC=3.3V 3
Differential output voltage VOD2 1.5 3 V Fig 2, RL = 54 Ω, VCC=5V 3
Change in magnitude of differential output voltage ΔVOD 0.2 V Fig 2, RL = 54 Ω 3
Common-mode output voltage VOC 3 V Fig 2, RL = 54 Ω 3
Change in magnitude of common-mode output voltage ΔVOC 0.2 V Fig 2, RL = 54 Ω 3
High-level input voltage VIH 2 V DE, DI, /RE 3
Low-level input voltage VIL 0.8 V DE, DI, /RE 3
Logic input current IIN1 -2 2 µA DE, DI, /RE 3
Short-circuit output current, short to HIGH IOSD1 250 mA short to 0V~12V 3
Short-circuit output current, short to LOW IOSD2 -250 mA short to -7V~0V 3
Input current (A, B) IIN2 125 µA DE = 0 V, VCC=0 or 5V, VIN = 12 V 4
Input current (A, B) IIN2 -100 µA DE = 0 V, VCC=0 or 5V, VIN = -7 V 4
Positive-going input threshold voltage VIT+ -10 mV -7V≤VCM≤12V 4
Negative-going input threshold voltage VIT- -200 mV -7V≤VCM≤12V 4
Input hysteresis voltage Vhys 10 30 mV -7V≤VCM≤12V 4
LOW-level output voltage VOL 0.4 V IOUT = +2.5mA, VID = -200 mV 4
Three-state input leakage current IOZR -1 1 µA 0.4 V < VO < 2.4 V 4
Receiver input resistance RIN 96 kΩ -7V≤VCM≤12V 4
Receiver output short-circuit current IOSR -8 90 mA 0 V≤VO≤VCC 4
Supply current (ICC1) ICC1 240 650 µA /RE=0V, DE=0V, VCC=3.3V 5
Supply current (ICC1) ICC1 270 750 µA /RE=0V, DE = 0 V, VCC=5V 5
Supply current (ICC2) ICC2 250 650 µA /RE=VCC, DE=VCC, VCC=3.3V 5
Supply current (ICC2) ICC2 280 750 µA /RE=0V, DE = 0 V, VCC=5V 5
Shutdown current ISHDN 0.2 10 µA /RE=VCC, DE=0V, VCC=3.3V 5
Differential-output delay time tDD 15 32 ns RDIFF = 60 Ω, CL1=CL2=100pF (Fig 3& Fig 4) 5
Differential-output transition time tTD 8 20 ns 5
Drive propagation delay from low to high tPLH 18 40 ns RDIFF = 27 Ω, (Fig 3& Fig 4) 5
Drive propagation delay from high to low tPHL 18 40 ns 5
/tPLH-tPHL/ skew tPDS 2 6 ns 5
Output enable time to high level tPZH 55 ns RL = 110Ω, (Fig 5& Fig 6) 5
Output enable time to low level tPZL 55 ns 5
Input disable time from low level tPLZ 85 ns RL = 110Ω, (Fig 5& Fig 6) 5
Input disable time from high level tPHZ 85 ns 5
Output enable time to high level (shutdown) tDSH 20 100 ns RL = 110Ω, (Fig 5& Fig 6) 6
Output enable time to low level (shutdown) tDSL 20 100 ns RL = 110Ω, (Fig 5& Fig 6) 6
Propagation delay time, low- to high-level output tRPLH 40 70 ns CL=15pF (Fig 7& Fig 8) 6
Propagation delay time, high- to low-level output tRPHL 40 70 ns 6
/tRPLH − tRPHL/ skew tRPDS 3 8 ns 6
Output enable time to low level tRPZL 15 40 ns CL=15pF (Fig 7& Fig 8) 6
Output enable time to high level tRPZH 15 40 ns CL=15pF (Fig 7& Fig 8) 6
Output disable time from low level tPRLZ 25 55 ns CL=15pF (Fig 7& Fig 8) 6
Output disable time from high level tPRHZ 25 55 ns CL=15pF (Fig 7& Fig 8) 6
Output enable time to high level (shutdown) tRPSH 150 500 ns CL=15pF (Fig 7& Fig 8) 6
Output enable time to low level (shutdown) tRPSL 150 500 ns CL=15pF (Fig 7& Fig 8) 6
Time to shutdown tSHDN 50 300 ns 6
Supply voltage (working range) VCC 3 5.5 V 1
Supply Voltage VCC 7 V 2
Control Input Voltage (/RE, DE, DI) -0.3 V 2
Input Voltage on the Bus side (A, B) -15 15 V 2
Receiver Output voltage (RO) RO -0.3 V 2
Operating Temperature Range TA -40 85 ℃ 2
Storage Temperature Range Tstg -55 150 ℃ 2
Continuous Power Dissipation SOP8 470 mW 2
Thermal-shutdown threshold temperature 140 ℃ 4
Thermal-shutdown hysteresis temperature 20 ℃ 4

CAD (KiCad official)

  • Symbol: SIT65176BDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: sit65176bdr-etched.step / sit65176bdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sit65176bdr.step / sit65176bdr.glb are the bare package body.

Provenance

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

  • Datasheet: SIT datasheet (17 pp, sha256 932d4aefdad37df1, retrieved 2026-10-16, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF