component

fm1905

Public Unreviewed

by Ray

Shenzhen Fuman LCD Drivers, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentled-drvfm1905
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

fm1905

Shenzhen Fuman · LCD Drivers · SOIC-16

fm1905 from Shenzhen Fuman, in a SOIC-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 CSB input Chip select input, requires external pull-up resistor. When /CS is high, read/write of FM1905 data and commands is invalid and the serial interface is reset. When /CS is low and used as an input, data/command read/write to FM1905 is valid.
2 WRB input Write pulse input, requires external pull-up resistor. On the rising edge of /WR, data on the DATA line is written into FM1905.
3 DATA bidirectional Serial data input/output pin; requires external pull-up resistor (RPH typ 80KΩ at 3V, 60KΩ at 5V).
4 VSS power_in Negative supply / ground reference (0 V).
5 VLCD power_in LCD bias voltage input. Must satisfy VLCD < VDD; typical arrangement uses an external adjustable resistor (~15KΩ) to set the LCD operating voltage (e.g. VLCD=4V when VDD=5V).
6 VDD power_in Positive supply input, 3.0 V to 5.0 V (absolute max -0.3 to 5.5 V).
7 COM0 output LCD common output 0. Drives one of the up to 4 LCD backplanes selected by the bias/duty configuration.
8 COM1 output LCD common output 1.
9 COM2 output LCD common output 2.
10 COM3 output LCD common output 3.
11 SEG23 output LCD segment output 23. Drives one column of the 6x4 dot matrix; typical source/sink is 70-200 uA.
12 SEG20 output LCD segment output 20.
13 SEG17 output LCD segment output 17.
14 SEG14 output LCD segment output 14.
15 SEG11 output LCD segment output 11.
16 SEG8 output LCD segment output 8.

Key specifications

Parameter Value
Manufacturer Shenzhen Fuman
Package SOIC-16
Category LED-drv
Pins 16

CAD (KiCad official)

  • Symbol: fm1905
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Shenzhen Fuman datasheet (12 pp, sha256 674510feaa76392f, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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