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RE46C101S8TF

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by Ray

Microchip Tech Buffers, Drivers, Receivers, Transceivers, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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RE46C101S8TF

Microchip Tech · Buffers, Drivers, Receivers, Transceivers · SOIC-8

RE46C101S8TF from Microchip Tech, in a SOIC-8. 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 LED output Open-drain N-channel LED driver output. Sinks the LED current (I_OL3 = 10 mA typical, V_OL3 ~ 0.5 V @ VDD=7.2 V) when the LEDEN input is active high. Requires an external current-limit resistor (e.g. 390 Ω) to VDD.
2 VDD power_in Positive supply voltage. Operating range 6 V (min) to 16 V (max), 9 V typical; absolute maximum 18 V. Quiescent current <100 nA.
3 LEDEN input LED enable input (active high). Drives the LED open-drain output. V_IL = 1 V max, V_IH = 2.3 V min; input leakage ±100 nA.
4 FEED input Feedback input from the piezoelectric horn feedback electrode. Extended voltage range (-10 V to +22 V absolute max); typical external network uses R3 (1.5 MΩ) and R4 (220 kΩ) with C1 (0.001 µF). Input leakage -50 µA at -10 V and 50 µA at 22 V.
5 VSS power_in Negative supply / ground reference (0 V).
6 HORNB output Piezoelectric horn driver output B (complementary to HORNS). Push-pull CMOS output; V_OH ~ 8.7 V @ I_OH = -16 mA and V_OL ~ 0.3 V @ I_OL = 16 mA (VDD = 9 V). Driver R_on ~ 20 Ω typical at 9 V. Drives one terminal of the piezo element.
7 HORNS output Piezoelectric horn driver output S (complementary to HORNB). Push-pull CMOS output with same drive characteristics as HORNB. Drives the opposite terminal of the piezo element.
8 HRNEN input Horn enable input (active high). Enables the self-oscillating horn driver circuitry. V_IL = 1 V max, V_IH = 2.3 V min; input leakage ±100 nA.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Logic
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • RE46C101S8TF
  • RE46C101S8TFP

CAD (KiCad official)

  • Symbol: RE46C101S8TF
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Microchip Tech datasheet (4 pp, sha256 9ddfdf6077fdd07c, 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