# CD74HC237M96

**Texas Instruments** · Signal Switches / Encoders & Decoders / Multiplexers · SOIC-16

CD74HC237M96 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 | A0 | input | Binary select input A0 (least significant bit) that chooses one of eight outputs and is latched when LE is High. |
| 2 | A1 | input | Binary select input A1 that chooses one of eight outputs and is latched when LE is High. |
| 3 | A2 | input | Binary select input A2 (most significant bit) that chooses one of eight outputs and is latched when LE is High. |
| 4 | LE | input | Active-High latch enable; when High it latches the select inputs, and when Low the circuit acts as a transparent one-of-eight decoder. |
| 5 | OE1 | input | Output enable input that is used with OE0 to simplify cascading and to allow demultiplexing of the outputs. |
| 6 | OE0 | input | Output enable input that is used with OE1 to simplify cascading and to allow demultiplexing of the outputs. |
| 7 | Y7 | output | Decoder output 7, which goes High when selected on the HC237 (active-High output per the truth table). |
| 8 | GND | power_in | Ground reference for the device (0 V). |
| 9 | Y6 | output | Decoder output 6, which goes High when selected on the HC237 (active-High output per the truth table). |
| 10 | Y5 | output | Decoder output 5, which goes High when selected on the HC237 (active-High output per the truth table). |
| 11 | Y4 | output | Decoder output 4, which goes High when selected on the HC237 (active-High output per the truth table). |
| 12 | Y3 | output | Decoder output 3, which goes High when selected on the HC237 (active-High output per the truth table). |
| 13 | Y2 | output | Decoder output 2, which goes High when selected on the HC237 (active-High output per the truth table). |
| 14 | Y1 | output | Decoder output 1, which goes High when selected on the HC237 (active-High output per the truth table). |
| 15 | Y0 | output | Decoder output 0, which goes High when selected on the HC237 (active-High output per the truth table). |
| 16 | VCC | power_in | Positive supply; the HC types operate from 2V to 6V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-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 voltage range, HC types | VCC | 2 |  | 6 | V | HC types | 4 |
| Temperature range | TA | -55 |  | 125 | °C |  | 4 |
| Input rise and fall time |  |  |  | 1000 | ns | VCC=2V | 4 |
| Input rise and fall time |  |  |  | 500 | ns | VCC=4.5V | 4 |
| Input rise and fall time |  |  |  | 400 | ns | VCC=6V | 4 |
| DC supply voltage | VCC | -0.5 |  | 7 | V |  | 4 |
| DC input diode current | IIK | -20 |  | 20 | mA | For VI < -0.5V or VI > VCC + 0.5V | 4 |
| DC output diode current | IOK | -20 |  | 20 | mA | For VO < -0.5V or VO > VCC + 0.5V | 4 |
| DC output source or sink current per output pin | IO | -25 |  | 25 | mA | For VO > -0.5V or VO < VCC + 0.5V | 4 |
| DC VCC or ground current | ICC | -50 |  | 50 | mA |  | 4 |
| Maximum junction temperature |  |  |  | 150 | °C |  | 4 |
| Maximum storage temperature range |  | -65 |  | 150 | °C |  | 4 |
| Maximum lead temperature (soldering) |  |  |  | 300 | °C | 10s (SOIC - Lead Tips Only) | 4 |
| High level input voltage | VIH | 1.5 |  |  | V | VCC=2V | 4 |
| High level input voltage | VIH | 3.15 |  |  | V | VCC=4.5V | 4 |
| High level input voltage | VIH | 4.2 |  |  | V | VCC=6V | 4 |
| Low level input voltage | VIL |  |  | 0.5 | V | VCC=2V | 4 |
| Low level input voltage | VIL |  |  | 1.35 | V | VCC=4.5V | 4 |
| Low level input voltage | VIL |  |  | 1.8 | V | VCC=6V | 4 |
| High level output voltage, CMOS loads | VOH | 1.9 |  |  | V | VI=VIH or VIL, IO=-0.02mA, VCC=2V | 4 |
| High level output voltage, CMOS loads | VOH | 4.4 |  |  | V | VI=VIH or VIL, IO=-0.02mA, VCC=4.5V | 4 |
| High level output voltage, CMOS loads | VOH | 5.9 |  |  | V | VI=VIH or VIL, IO=-0.02mA, VCC=6V | 4 |
| High level output voltage, TTL loads | VOH | 3.7 |  |  | V | IO=-4mA, VCC=4.5V | 4 |
| High level output voltage, TTL loads | VOH | 5.2 |  |  | V | IO=-5.2mA, VCC=6V | 4 |
| Low level output voltage, CMOS loads | VOL |  |  | 0.1 | V | VI=VIH or VIL, IO=0.02mA, VCC=2V | 4 |
| Low level output voltage, TTL loads | VOL |  |  | 0.4 | V | IO=4mA, VCC=4.5V | 4 |
| Input leakage current | II | -1 |  | 1 | µA | VI=VCC or GND, VCC=6V | 4 |
| Quiescent device current | ICC |  |  | 160 | µA | VI=VCC or GND, IO=0, VCC=6V | 4 |
| An to LE setup time | tSU | 75 |  |  | ns | VCC=2V | 5 |
| An to LE setup time | tSU | 15 |  |  | ns | VCC=4.5V | 5 |
| An to LE setup time | tSU | 13 |  |  | ns | VCC=6V | 5 |
| An to LE hold time | tH | 45 |  |  | ns | VCC=2V | 5 |
| An to LE hold time | tH | 9 |  |  | ns | VCC=4.5V | 5 |
| An to LE hold time | tH | 8 |  |  | ns | VCC=6V | 5 |
| LE pulse width | tW | 75 |  |  | ns | VCC=2V | 5 |
| LE pulse width | tW | 15 |  |  | ns | VCC=4.5V | 5 |
| LE pulse width | tW | 13 |  |  | ns | VCC=6V | 5 |
| Propagation delay An to any Y (’HC237) | tPLH, tPHL |  |  | 240 | ns | CL=50pF, tr,tf=6ns, VCC=2V | 6 |
| Propagation delay An to any Y (’HC237) | tPLH, tPHL |  |  | 48 | ns | CL=50pF, tr,tf=6ns, VCC=4.5V | 6 |
| Propagation delay An to any Y (’HC237) | tPLH, tPHL |  |  | 41 | ns | CL=50pF, tr,tf=6ns, VCC=6V | 6 |
| OE0 to any Y | tPLH, tPHL |  |  | 220 | ns | CL=50pF, VCC=2V | 6 |
| OE0 to any Y | tPLH, tPHL |  |  | 44 | ns | CL=50pF, VCC=4.5V | 6 |
| OE0 to any Y | tPLH, tPHL |  |  | 38 | ns | CL=50pF, VCC=6V | 6 |
| OE1 to any Y | tTLH, tTHL |  |  | 220 | ns | CL=50pF, VCC=2V | 6 |
| OE1 to any Y | tTLH, tTHL |  |  | 44 | ns | CL=50pF, VCC=4.5V | 6 |
| OE1 to any Y | tTLH, tTHL |  |  | 38 | ns | CL=50pF, VCC=6V | 6 |
| LE to any Y | tTLH, tTHL |  |  | 285 | ns | CL=50pF, VCC=2V | 6 |
| LE to any Y | tTLH, tTHL |  |  | 57 | ns | CL=50pF, VCC=4.5V | 6 |
| LE to any Y | tTLH, tTHL |  |  | 48 | ns | CL=50pF, VCC=6V | 6 |
| Output transition time | tTLH, tTHL |  |  | 110 | ns | CL=50pF, VCC=2V | 6 |
| Output transition time | tTLH, tTHL |  |  | 22 | ns | CL=50pF, VCC=4.5V | 6 |
| Output transition time | tTLH, tTHL |  |  | 19 | ns | CL=50pF, VCC=6V | 6 |
| Input capacitance | CI |  |  | 10 | pF |  | 6 |
| Power dissipation capacitance (’HC237) | CPD |  | 23 |  | pF | CL=15pF, VCC=5V | 6 |
| Address to output (’HC237) | tPLH, tPHL |  | 13 |  | ns | CL=15pF, VCC=5V | 6 |

## CAD (KiCad official)

- Symbol: `CD74HC237M96`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files: `cd74hc237m96-etched.step` / `cd74hc237m96-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc237m96.step` / `cd74hc237m96.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/lit/ds/symlink/cd74hc237m96.pdf) (25 pp, sha256 `2730bb722c30014a`, retrieved 2026-10-27, tier: manufacturer)
- **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/cd74hc237m96-datasheet.pdf)