# CD74HCT164M96

**Texas Instruments** · Shift Registers · SOIC-14

CD74HCT164M96 from Texas Instruments, in a SOIC-14. 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 | A | input | Serial data input A; provides data and enable control for the 8-bit shift register. |
| 2 | B | input | Serial data input B; provides data and enable control for the 8-bit shift register. |
| 3 | GND | power_in | Ground reference voltage (0V). |
| 4 | QE | output | Parallel output Q4 stage of the 8-bit shift register. |
| 5 | CLR | input | Asynchronous reset input (active low); forces all outputs to LOW state regardless of input conditions. |
| 6 | CLK | input | Clock input; positive edge triggers serial data shift operation. |
| 7 | QA | output | Parallel output Q0 (first stage) of the 8-bit shift register. |
| 8 | QB | output | Parallel output Q1 stage of the 8-bit shift register. |
| 9 | QC | output | Parallel output Q2 stage of the 8-bit shift register. |
| 10 | QD | output | Parallel output Q3 stage of the 8-bit shift register. |
| 11 | VCC | power_in | Positive supply voltage; operating range 4.5V to 5.5V for HCT type. |
| 12 | QH | output | Parallel output Q7 (eighth stage) of the 8-bit shift register. |
| 13 | QG | output | Parallel output Q6 stage of the 8-bit shift register. |
| 14 | QF | output | Parallel output Q5 stage of the 8-bit shift register. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `CD74HCT164M96`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `cd74hct164m96-etched.step` / `cd74hct164m96-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hct164m96.step` / `cd74hct164m96.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/cd74hct164) (24 pp, sha256 `daeb5979b51ad973`, retrieved 2026-09-26, 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`, 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](docs/cd74hct164m96-datasheet.pdf)