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Contents

README

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CD4099BM

Texas Instruments · Latches · SOIC-16

CD4099BM from Texas Instruments, in a SOIC-16. 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 Q7 output Parallel latch output 7 (active high); follows data when addressed, otherwise holds its state.
2 RESET input Master reset input; with WRITE DISABLE high it resets all latches to logic 0, with WRITE DISABLE low the device acts as a 1-of-8 demultiplexer.
3 DATA input Serial data input written to the addressed latch when WRITE DISABLE is low; input range -0.5 V to VDD+0.5 V.
4 WRITE DISABLE input When low, data entry to the addressed latch is enabled; when high, data entry is inhibited while outputs can still be read.
5 A0 input Address input bit 0 selecting which of the 8 latches is addressed.
6 A1 input Address input bit 1 selecting which of the 8 latches is addressed.
7 A2 input Address input bit 2 selecting which of the 8 latches is addressed.
8 VSS power_in Ground (negative supply) reference terminal; all voltage ratings are referenced to VSS.
9 Q0 output Parallel latch output 0 (active high).
10 Q1 output Parallel latch output 1 (active high).
11 Q2 output Parallel latch output 2 (active high).
12 Q3 output Parallel latch output 3 (active high).
13 Q4 output Parallel latch output 4 (active high).
14 Q5 output Parallel latch output 5 (active high).
15 Q6 output Parallel latch output 6 (active high).
16 VDD power_in Positive supply; recommended 3 V to 18 V, absolute maximum -0.5 V to +20 V referenced to VSS.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: CD4099BM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: cd4099bm-etched.step / cd4099bm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd4099bm.step / cd4099bm.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 52fc48c47f5273e0, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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