# MCP6544-E

**Microchip Tech** · Comparators · TSSOP-14

MCP6544-E from Microchip Tech, in a TSSOP-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 | OUTA | output | Push-pull CMOS/TTL-compatible digital output of comparator A. |
| 2 | VINA- | input | Inverting input of comparator A; high-impedance CMOS input with low bias current. |
| 3 | VINA+ | input | Non-inverting input of comparator A; high-impedance CMOS input with low bias current. |
| 4 | VDD | power_in | Positive power supply, 1.6V to 5.5V above VSS, with a local 0.01 µF to 0.1 µF bypass capacitor within 2 mm. |
| 5 | VINB+ | input | Non-inverting input of comparator B; high-impedance CMOS input with low bias current. |
| 6 | VINB- | input | Inverting input of comparator B; high-impedance CMOS input with low bias current. |
| 7 | OUTB | output | Push-pull CMOS/TTL-compatible digital output of comparator B. |
| 8 | OUTC | output | Push-pull CMOS/TTL-compatible digital output of comparator C. |
| 9 | VINC- | input | Inverting input of comparator C; high-impedance CMOS input with low bias current. |
| 10 | VINC+ | input | Non-inverting input of comparator C; high-impedance CMOS input with low bias current. |
| 11 | VSS | power_in | Negative power supply, typically connected to ground in single-supply use. |
| 12 | VIND+ | input | Non-inverting input of comparator D; high-impedance CMOS input with low bias current. |
| 13 | VIND- | input | Inverting input of comparator D; high-impedance CMOS input with low bias current. |
| 14 | OUTD | output | Push-pull CMOS/TTL-compatible digital output of comparator D. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TSSOP-14 |
| Category | Amplifiers |
| Pins | 14 |

## 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 | VDD | 1.6 |  | 5.5 | V |  | 3 |
| Quiescent Current per comparator | IQ | 0.3 | 0.6 | 1 | µA | IOUT = 0 | 3 |
| Common Mode Rejection Ratio | CMRR | 55 | 70 |  | dB | VDD = 5V, VCM = -0.3V to 5.3V | 3 |
| Common Mode Rejection Ratio | CMRR | 50 | 65 |  | dB | VDD = 5V, VCM = 2.5V to 5.3V | 3 |
| Power Supply Rejection Ratio | PSRR | 63 | 80 |  | dB | VCM = VSS | 3 |
| Input Offset Voltage | VOS | -7 | 1.5 | 7 | mV | VCM = VSS (Note 1) | 3 |
| Input Hysteresis Voltage | VHYST | 1.5 | 3.3 | 6.5 | mV | VCM = VSS (Note 1) | 3 |
| Input Bias Current at Temperature (E-Temp parts) | IB |  | 1200 | 5000 | pA | TA = +125°C, VCM = VSS (Note 3) | 3 |
| Propagation Delay (High-to-Low) | tPHL |  | 4 | 8 | µs |  | 4 |
| Propagation Delay (Low-to-High) | tPLH |  | 4 | 8 | µs |  | 4 |
| Absolute Maximum Supply Voltage | VDD - VSS |  |  | 7 | V |  | 3 |
| Current at Analog Input Pin | VIN+, VIN- | -2 |  | 2 | mA |  | 3 |
| Current at Input Pins |  | -2 |  | 2 | mA |  | 3 |
| Current at Output and Supply Pins |  | -30 |  | 30 | mA |  | 3 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 3 |
| Maximum Junction Temperature | TJ |  |  | 150 | °C |  | 3 |
| ESD Protection (HBM) |  |  |  | 4 | kV | HBM | 3 |
| ESD Protection (MM) |  |  |  | 400 | V | MM | 3 |
| Specified Temperature Range | TA | -40 |  | 85 | °C |  | 6 |
| Operating Temperature Range | TA | -40 |  | 125 | °C | Note | 6 |
| Storage Temperature Range | TA | -65 |  | 150 | °C |  | 6 |
| Thermal Resistance, 14L-TSSOP | θJA |  | 100 |  | °C/W |  | 6 |
| Drift with Temperature | ΔVOS/ΔTA |  | 3 |  | µV/°C | TA = -40°C to +125°C, VCM = VSS | 3 |
| Linear Temp. Co. | TC1 |  | 6.7 |  | µV/°C | TA = -40°C to +125°C, VCM = VSS | 3 |
| Quadratic Temp. Co. | TC2 |  | -0.035 |  | µV/°C2 | TA = -40°C to +125°C, VCM = VSS | 3 |
| Input Bias Current | IB |  | 1 |  | pA | VCM = VSS | 3 |
| Input Offset Current | IOS |  | 1 |  | pA | VCM = VSS | 3 |
| Short-Circuit Current | ISC |  | 30 |  | mA | VDD = 5.5V (Note 4); printed ±30 | 4 |
| Rise Time | tR |  | 0.85 |  | µs |  | 4 |
| Fall Time | tF |  | 0.85 |  | µs |  | 4 |
| Propagation Delay Skew | tPDS |  | 0.2 |  | µs | Note 1; printed ±0.2 | 4 |
| Maximum Toggle Frequency | fMAX |  | 160 |  | kHz | VDD = 1.6V | 4 |
| Maximum Toggle Frequency | fMAX |  | 120 |  | kHz | VDD = 5.5V | 4 |
| Input Noise Voltage | Eni |  | 200 |  | µVP-P | 10 Hz to 100 kHz | 4 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | P = Plastic DIP (300 mil Body), 8-lead, 14-lead SN = Plastic SOIC (150 mil Body), 8-lead | 43 |

## CAD (KiCad official)

- Symbol: `MCP6544-E`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `mcp6544-e-etched.step` / `mcp6544-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp6544-e.step` / `mcp6544-e.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/mcp6544-e-datasheet.pdf) (46 pp, sha256 `067c8b4402f90f4b`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/mcp6544-e-datasheet.pdf)