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Contents

README

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SN74HC590ADR

Texas Instruments · Counters, Dividers · SOIC-16

SN74HC590ADR 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 QB tri_state Parallel output of 8-bit storage register bit 1, 3-state output controlled by OE (active low).
2 QC tri_state Parallel output of 8-bit storage register bit 2, 3-state output controlled by OE (active low).
3 QD tri_state Parallel output of 8-bit storage register bit 3, 3-state output controlled by OE (active low).
4 QE tri_state Parallel output of 8-bit storage register bit 4, 3-state output controlled by OE (active low).
5 QF tri_state Parallel output of 8-bit storage register bit 5, 3-state output controlled by OE (active low).
6 QG tri_state Parallel output of 8-bit storage register bit 6, 3-state output controlled by OE (active low).
7 QH tri_state Parallel output of 8-bit storage register bit 7, 3-state output controlled by OE (active low).
8 GND power_in Ground connection for device.
9 RCO output Ripple-carry output for cascading multiple counter stages.
10 CCLR input Direct asynchronous clear input to counter, active low.
11 CCLK input Positive-edge triggered counter clock input.
12 CCKEN input Counter clock enable input, active low to enable counting.
13 RCLK input Positive-edge triggered storage register clock input.
14 OE input Output enable control for 3-state register outputs QA-QH, active low.
15 QA tri_state Parallel output of 8-bit storage register bit 0, 3-state output controlled by OE (active low).
16 VCC power_in Positive supply voltage, 2 V to 6 V range.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74HC590ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc590adr-etched.step / sn74hc590adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc590adr.step / sn74hc590adr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 15f4b455093631e3, retrieved 2026-09-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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