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SN74AHCT594DBR

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Texas Instruments Shift Registers, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74AHCT594DBR

Texas Instruments · Shift Registers · SSOP-16-208mil

SN74AHCT594DBR from Texas Instruments, in a SSOP-16-208mil. 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 output Parallel output B of the 8-bit storage register.
2 QC output Parallel output C of the 8-bit storage register.
3 QD output Parallel output D of the 8-bit storage register.
4 QE output Parallel output E of the 8-bit storage register.
5 QF output Parallel output F of the 8-bit storage register.
6 QG output Parallel output G of the 8-bit storage register.
7 QH output Parallel output H of the 8-bit storage register.
8 GND power_in Ground pin.
9 QH' output Serial output (QH inverted) of the shift register, provided for cascading multiple devices.
10 SRCLR input Active-low serial (shift register) clear; when low, the shift register is cleared.
11 SRCLK input Shift register clock; shift register is positive-edge triggered.
12 RCLK input Storage register clock; storage register is positive-edge triggered.
13 RCLR input Active-low storage register clear; when low, the storage register is cleared.
14 SER input Serial data input to the 8-bit shift register.
15 QA output Parallel output A of the 8-bit storage register.
16 VCC power_in Supply pin; VCC recommended operating range is 4.5 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-16-208mil
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: SN74AHCT594DBR
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
  • 3D model files: sn74ahct594dbr-etched.step / sn74ahct594dbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahct594dbr.step / sn74ahct594dbr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (31 pp, sha256 3153f7a4588c9ac9, retrieved 2026-10-08, 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: 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