# SN74HC594N

**lingxingic** · Shifting Register · DIP-16

SN74HC594N from lingxingic, in a DIP-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 | Q1 | output | Parallel data output Q1. |
| 2 | Q2 | output | Parallel data output Q2. |
| 3 | Q3 | output | Parallel data output Q3. |
| 4 | Q4 | output | Parallel data output Q4. |
| 5 | Q5 | output | Parallel data output Q5. |
| 6 | Q6 | output | Parallel data output Q6. |
| 7 | Q7 | output | Parallel data output Q7. |
| 8 | GND | power_in | Ground (0V). |
| 9 | Q7S | output | Serial data output Q7S. |
| 10 | SHR | input | Shift register reset, active LOW. |
| 11 | SHCP | input | Shift register clock input. |
| 12 | STCP | input | Storage register clock input. |
| 13 | STR | input | Storage register reset, active LOW. |
| 14 | DS | input | Serial data input. |
| 15 | Q0 | output | Parallel data output Q0. |
| 16 | VCC | power_in | Supply voltage; recommended range 2.0V to 6.0V for SN74HC594 and 4.5V to 5.5V for SN74HCT594. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | DIP-16 |
| Category | Logic ICs |
| Pins | 16 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| supply current | ICC |  |  | 50 | mA |  | 8 |
| ground current | IGND | -50 |  |  | mA |  | 8 |
| input clamping current | IIK | -20 |  | 20 | mA | VI < -0.5V or VI > VCC+0.5V | 8 |
| output clamping current | IOK | -20 |  | 20 | mA | VO < -0.5V or VO > VCC+0.5V | 8 |
| output current | IO | -25 |  | 25 | mA | -0.5V < VO < VCC+0.5V | 8 |
| storage temperature | Tstg | -65 |  | 150 | ℃ |  | 8 |
| soldering temperature (DIP) | TL |  |  | 245 | ℃ | 10s | 8 |
| supply voltage (HC, VCC 2.0 to 6.0V) | VCC | 2 | 5 | 6 | V |  | 8 |
| input voltage (HC) | VI | 0 |  |  | V |  | 8 |
| output voltage (HC) | VO | 0 |  |  | V |  | 8 |
| ambient temperature | Tamb | -40 |  | 125 | ℃ |  | 8 |
| HIGH-level input voltage VCC=2.0V (Tamb -40 to +85℃) | VIH | 1.5 | 1.2 |  | V |  | 9 |
| HIGH-level input voltage VCC=4.5V (Tamb -40 to +85℃) | VIH | 3.15 | 2.4 |  | V |  | 9 |
| HIGH-level input voltage VCC=6.0V (Tamb -40 to +85℃) | VIH | 4.2 | 3.2 |  | V |  | 9 |
| LOW-level input voltage VCC=2.0V (Tamb -40 to +85℃) | VIL |  | 0.8 | 0.5 | V |  | 9 |
| LOW-level input voltage VCC=4.5V (Tamb -40 to +85℃) | VIL |  | 2.1 | 1.35 | V |  | 9 |
| LOW-level input voltage VCC=6.0V (Tamb -40 to +85℃) | VIL |  | 2.8 | 1.8 | V |  | 9 |
| HIGH-level output voltage serial Q7S VCC=4.5V (Tamb -40 to +85℃) | VOH | 3.84 | 4.32 |  | V | IO=-4.0mA | 9 |
| HIGH-level output voltage serial Q7S VCC=6.0V (Tamb -40 to +85℃) | VOH | 5.34 | 5.81 |  | V | IO=-5.2mA | 9 |
| HIGH-level output voltage parallel Qn VCC=4.5V (Tamb -40 to +85℃) | VOH | 3.84 | 4.32 |  | V | IO=-6.0mA | 9 |
| HIGH-level output voltage parallel Qn VCC=6.0V (Tamb -40 to +85℃) | VOH | 5.34 | 5.81 |  | V | IO=-7.8mA | 9 |
| LOW-level output voltage serial Q7S VCC=4.5V (Tamb -40 to +85℃) | VOL |  | 0.15 | 0.33 | V | IO=4.0mA | 9 |
| LOW-level output voltage serial Q7S VCC=6.0V (Tamb -40 to +85℃) | VOL |  | 0.16 | 0.33 | V | IO=5.2mA | 9 |
| LOW-level output voltage parallel Qn VCC=4.5V (Tamb -40 to +85℃) | VOL |  | 0.15 | 0.33 | V | IO=6.0mA | 9 |
| LOW-level output voltage parallel Qn VCC=6.0V (Tamb -40 to +85℃) | VOL |  | 0.16 | 0.33 | V | IO=7.8mA | 9 |
| input leakage current VCC=6.0V (Tamb -40 to +85℃) | II | -2 |  | 2 | uA | VI=VCC or GND | 9 |
| supply current VCC=6.0V (Tamb -40 to +85℃) | ICC |  |  | 80 | uA | VI=VCC or GND;IO=0A | 9 |
| HIGH-level input voltage VCC=2.0V (Tamb -40 to +125℃) | VIH | 1.5 |  |  | V |  | 10 |
| HIGH-level input voltage VCC=4.5V (Tamb -40 to +125℃) | VIH | 3.15 |  |  | V |  | 10 |
| HIGH-level input voltage VCC=6.0V (Tamb -40 to +125℃) | VIH | 4.2 |  |  | V |  | 10 |
| LOW-level input voltage VCC=2.0V (Tamb -40 to +125℃) | VIL |  |  | 0.5 | V |  | 10 |
| LOW-level input voltage VCC=4.5V (Tamb -40 to +125℃) | VIL |  |  | 1.35 | V |  | 10 |
| LOW-level input voltage VCC=6.0V (Tamb -40 to +125℃) | VIL |  |  | 1.8 | V |  | 10 |
| HIGH-level output voltage serial Q7S VCC=4.5V (Tamb -40 to +125℃) | VOH | 3.7 |  |  | V | IO=-4.0mA | 10 |
| HIGH-level output voltage serial Q7S VCC=6.0V (Tamb -40 to +125℃) | VOH | 5.2 |  |  | V | IO=-5.2mA | 10 |
| HIGH-level output voltage parallel Qn VCC=4.5V (Tamb -40 to +125℃) | VOH | 3.7 |  |  | V | IO=-6.0mA | 10 |
| HIGH-level output voltage parallel Qn VCC=6.0V (Tamb -40 to +125℃) | VOH | 5.2 |  |  | V | IO=-7.8mA | 10 |
| LOW-level output voltage serial Q7S VCC=4.5V (Tamb -40 to +125℃) | VOL |  |  | 0.4 | V | IO=4.0mA | 10 |
| LOW-level output voltage serial Q7S VCC=6.0V (Tamb -40 to +125℃) | VOL |  |  | 0.4 | V | IO=5.2mA | 10 |
| LOW-level output voltage parallel Qn VCC=4.5V (Tamb -40 to +125℃) | VOL |  |  | 0.4 | V | IO=6.0mA | 10 |
| LOW-level output voltage parallel Qn VCC=6.0V (Tamb -40 to +125℃) | VOL |  |  | 0.4 | V | IO=7.8mA | 10 |
| input leakage current VCC=6.0V (Tamb -40 to +125℃) | II | -4 |  | 4 | uA | VI=VCC or GND | 10 |
| supply current VCC=6.0V (Tamb -40 to +125℃) | ICC |  |  | 160 | uA | VI=VCC or GND;IO=0A | 10 |
| SHCP to Q7S propagation delay VCC=2.0V (Tamb -40 to +85℃) | tPLH, tPHL |  | 44 | 185 | ns | CL=50pF see Figure 5 | 11 |
| SHCP to Q7S propagation delay VCC=4.5V (Tamb -40 to +85℃) | tPLH, tPHL |  | 16 | 37 | ns | CL=50pF | 11 |
| SHCP to Q7S propagation delay VCC=6.0V (Tamb -40 to +85℃) | tPLH, tPHL |  | 14 | 31 | ns | CL=50pF | 11 |
| STCP to Qn propagation delay VCC=2.0V (Tamb -40 to +85℃) | tPLH, tPHL |  | 44 | 185 | ns | CL=50pF see Figure 6 | 11 |
| STCP to Qn propagation delay VCC=4.5V (Tamb -40 to +85℃) | tPLH, tPHL |  | 16 | 37 | ns | CL=50pF | 11 |
| STCP to Qn propagation delay VCC=6.0V (Tamb -40 to +85℃) | tPLH, tPHL |  | 14 | 31 | ns | CL=50pF | 11 |
| SHCP pulse width VCC=2.0V (Tamb -40 to +85℃) | tw | 100 | 10 |  | ns | CL=50pF see Figure 5 | 11 |
| SHCP pulse width VCC=4.5V (Tamb -40 to +85℃) | tw | 20 | 4 |  | ns | CL=50pF | 11 |
| SHCP pulse width VCC=6.0V (Tamb -40 to +85℃) | tw | 17 | 3 |  | ns | CL=50pF | 11 |
| DS to SHCP setup time VCC=2.0V (Tamb -40 to +85℃) | tsu | 125 | 10 |  | ns | CL=50pF see Figure 7 | 11 |
| DS to SHCP setup time VCC=4.5V (Tamb -40 to +85℃) | tsu | 25 | 4 |  | ns | CL=50pF | 11 |
| DS to SHCP setup time VCC=6.0V (Tamb -40 to +85℃) | tsu | 21 | 3 |  | ns | CL=50pF | 11 |
| maximum frequency VCC=2.0V (Tamb -40 to +85℃) | fmax | 4.8 | 30 |  | MHz | CL=50pF see Figure 5 and Figure 6 | 11 |
| maximum frequency VCC=4.5V (Tamb -40 to +85℃) | fmax | 24 | 92 |  | MHz | CL=50pF | 11 |
| maximum frequency VCC=6.0V (Tamb -40 to +85℃) | fmax | 28 | 109 |  | MHz | CL=50pF | 11 |

## CAD (KiCad official)

- Symbol: `SN74HC594N`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `sn74hc594n-etched.step` / `sn74hc594n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hc594n.step` / `sn74hc594n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [lingxingic datasheet](docs/sn74hc594n-datasheet.pdf) (23 pp, sha256 `6701152582d6d4fa`, retrieved 2026-10-27, tier: lcsc)
- **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](docs/sn74hc594n-datasheet.pdf)