component
EMC2301-1-ACZL-TR
Public Made by Adomby adom
Microchip Tech Brushed DC Motor Drivers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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EMC2301-1-ACZL-TR
Microchip Tech · Brushed DC Motor Drivers · MSOP-8
EMC2301-1-ACZL-TR from Microchip Tech, in a MSOP-8. 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 | SMDATA | bidirectional | SMBus data input/output that requires an external pull-up resistor and is 5V tolerant (DIOD pin type). |
| 2 | SMCLK | input | SMBus clock input that requires an external pull-up resistor and is 5V tolerant (DI pin type). |
| 3 | VDD | power_in | Power supply pin for the device; for 5V tolerant pins with a pull-up resistor, the voltage difference between VDD and the 5V tolerant pad must never exceed 3.6V. |
| 4 | GND | power_in | Ground pin for the device. |
| 5 | PWM | output | Fan PWM output driver, configurable as push-pull output or open drain output (5V tolerant in open drain mode), with the open drain option requiring a pull-up resistor. |
| 6 | TACH | input | Open drain tachometer input for the fan that requires a pull-up resistor and is 5V tolerant (DI pin type). |
| 7 | CLK | bidirectional | Clock pin that acts as a 5V tolerant clock input for tachometer measurement, or as a push-pull clock output to other fan controllers to synchronize fan speed control. |
| 8 | ALERT# | output | Active low interrupt output that requires an external pull-up resistor and is 5V tolerant (open drain). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | MSOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Voltage on 5V tolerant pins | V5VT_pin | -0.3 | 5.5 | V | 9 | ||
| Voltage on 5V tolerant pins (/V5VT_pin - VDD/) | /V5VT_pin - VDD/ | 0 | 3.6 | V | see Note 2.1 | 9 | |
| Voltage on VDD pin | VDD | -0.3 | 4 | V | 9 | ||
| Operating Ambient Temperature Range | -40 | 125 | °C | 9 | |||
| Storage Temperature Range | -55 | 150 | °C | 9 | |||
| ESD Rating, All Pins, HBM | 2000 | V | 9 | ||||
| Supply Voltage | VDD | 3 | 3.3 | 3.6 | V | 9 | |
| Supply Current | IDD | 350 | 475 | uA | 9 | ||
| PWM Duty Cycle | DUTY | 0 | 100 | % | 9 | ||
| Tachometer Range | TACH | 480 | 16000 | RPM | 9 | ||
| Tachometer Setting Accuracy | ΔTACH | -1 | 1 | % | External oscillator 32.768kHz | 9 | |
| Tachometer Setting Accuracy | ΔTACH | -2 | 2 | % | Internal Oscillator | 9 | |
| Input High Voltage | VIH | 2 | V | 9 | |||
| Input Low Voltage | VIL | 0.8 | V | 10 | |||
| Output Low Voltage | VOL | 0.4 | V | 8 mA current sink | 10 | ||
| Leakage current (ALERT# pin) | ILEAK | -5 | 5 | uA | ALERT# pin; powered and unpowered; 0°C < TA < 85°C; pull-up voltage < 3.6V | 10 | |
| Input High Voltage | VIH | 2 | V | 10 | |||
| Input High/Low Current | IIH / IIL | -5 | 5 | uA | Powered and unpowered; 0°C < TA < 85°C | 10 | |
| Clock Frequency | fSMB | 10 | 400 | kHz | 10 | ||
| Input Capacitance | CIN | 5 | pF | 10 | |||
| Spike Suppression | tSP | 50 | ns | 10 | |||
| Bus free time Start to Stop | tBUF | 1.3 | us | 10 | |||
| Setup Time: Start | tSU:STA | 0.6 | us | 10 | |||
| Setup Time: Stop | tSU:STP | 0.6 | us | 10 | |||
| Data Hold Time | tHD:DAT | 0 | us | 10 | |||
| Data Setup Time | tSU:DAT | 0.6 | us | 10 | |||
| Package Thermal Resistance - Junction to Ambient (θJA) | θJA | 141 | °C/W | 9 |
CAD (KiCad official)
- Symbol:
EMC2301-1-ACZL-TR - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
emc2301-1-aczl-tr-etched.step/emc2301-1-aczl-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);emc2301-1-aczl-tr.step/emc2301-1-aczl-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (43 pp, sha256
c6a8293439ab2ecd, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).