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SN74AHC594DBR
Public Made by Adomby adom
Texas Instruments Shift Registers, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74AHC594DBR
Texas Instruments · Shift Registers · SSOP-16-208mil
SN74AHC594DBR 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 storage register output QB; output voltage 0 to VCC, maximum ±25 mA drive. |
| 2 | QC | output | Parallel storage register output QC; output voltage 0 to VCC, maximum ±25 mA drive. |
| 3 | QD | output | Parallel storage register output QD; output voltage 0 to VCC, maximum ±25 mA drive. |
| 4 | QE | output | Parallel storage register output QE; output voltage 0 to VCC, maximum ±25 mA drive. |
| 5 | QF | output | Parallel storage register output QF; output voltage 0 to VCC, maximum ±25 mA drive. |
| 6 | QG | output | Parallel storage register output QG; output voltage 0 to VCC, maximum ±25 mA drive. |
| 7 | QH | output | Parallel storage register output QH; output voltage 0 to VCC, maximum ±25 mA drive. |
| 8 | GND | power_in | Ground reference pin. |
| 9 | QH' | output | Serial output from shift register for cascading; output voltage 0 to VCC, maximum ±25 mA drive. |
| 10 | SRCLR | input | Shift register clear input, active low; input voltage 0 to 5.5 V. |
| 11 | SRCLK | input | Shift register clock input, positive-edge triggered; input voltage 0 to 5.5 V. |
| 12 | RCLK | input | Storage register clock input, positive-edge triggered; input voltage 0 to 5.5 V. |
| 13 | RCLR | input | Storage register clear input, active low; input voltage 0 to 5.5 V. |
| 14 | SER | input | Serial data input to shift register; input voltage 0 to 5.5 V. |
| 15 | QA | output | Parallel storage register output QA; output voltage 0 to VCC, maximum ±25 mA drive. |
| 16 | VCC | power_in | Supply voltage input; recommended 2 to 5.5 V, maximum ±75 mA total device current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-208mil |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74AHC594DBR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
- 3D model files:
sn74ahc594dbr-etched.step/sn74ahc594dbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahc594dbr.step/sn74ahc594dbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
2c30434dfd80dbe3, retrieved 2026-09-27, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).