component
TCA9537DGSR
Public Made by Adomby adom
TEXAS INSTRUMENTS Global Sourcing Parts, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTCA9537DGSR
TEXAS INSTRUMENTS · Global Sourcing Parts · MSOP-10
TCA9537DGSR from TEXAS INSTRUMENTS, in a MSOP-10. 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 | P0 | bidirectional | P-port input/output with a push-pull structure; the I/O tolerates up to 5.5 V when configured as input and sinks up to 25 mA when VCC > 1.8 V (15 mA when VCC ≤ 1.8 V). |
| 2 | P1 | bidirectional | P-port input/output with a push-pull structure; the I/O tolerates up to 5.5 V when configured as input and sinks up to 25 mA when VCC > 1.8 V (15 mA when VCC ≤ 1.8 V). |
| 3 | P2 | bidirectional | P-port input/output with a push-pull structure; the I/O tolerates up to 5.5 V when configured as input and sinks up to 25 mA when VCC > 1.8 V (15 mA when VCC ≤ 1.8 V). |
| 4 | P3 | bidirectional | P-port input/output with a push-pull structure; the I/O tolerates up to 5.5 V when configured as input and sinks up to 25 mA when VCC > 1.8 V (15 mA when VCC ≤ 1.8 V). |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | RESET | input | Active-low reset input that must be held low for at least tW (30 ns) to reset the device; if unused it must be pulled up to VCC through a resistor. |
| 7 | INT | output | Open-drain interrupt output that requires a pull-up resistor (typically about 10 kΩ) to VCC and is asserted when any input differs from its input port register. |
| 8 | SCL | bidirectional | I2C serial clock line that must be connected to VCC through a pull-up resistor; the input has a noise filter. |
| 9 | SDA | bidirectional | I2C serial data line that must be connected to VCC through a pull-up resistor; the input has a noise filter. |
| 10 | VCC | power_in | Supply voltage, recommended operating range 1.65 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TEXAS INSTRUMENTS |
| Package | MSOP-10 |
| Category | Global Sourcing Parts |
| Pins | 10 |
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 VCC (absolute maximum) | VCC | -0.5 | 6 | V | 4 | ||
| Input voltage VI (absolute maximum) | VI | -0.5 | 6 | V | 4 | ||
| Output voltage VO (absolute maximum) | VO | -0.5 | 6 | V | 4 | ||
| Input clamp current | IIK | -20 | mA | VI < 0 | 4 | ||
| Output clamp current | IOK | -20 | mA | VO < 0 | 4 | ||
| Input-output clamp current | IIOK | -20 | 20 | mA | VO < 0 or VO > VCC | 4 | |
| Continuous output low current | IOL | 50 | mA | VO = 0 to VCC | 4 | ||
| Continuous output high current | IOH | -50 | mA | VO = 0 to VCC | 4 | ||
| Continuous current through GND | ICC | -250 | mA | 4 | |||
| Continuous current through VCC | ICC | 160 | mA | 4 | |||
| Junction temperature (absolute maximum) | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Supply voltage VCC (recommended) | VCC | 1.65 | 5.5 | V | 4 | ||
| Input voltage, SCL, SDA, INT, RESET (recommended) | VI | 0 | 5.5 | V | SCL, SDA, INT, RESET | 4 | |
| Input voltage, P0 to P3 (recommended) | VI | 0 | 5.5 | V | P0 to P3 | 4 | |
| High-level output current, P3 to P0 (recommended) | IOH | -10 | mA | P3 to P0 | 4 | ||
| Low-level output current (recommended) | IOL | 25 | mA | VCC > 1.8V; P3 to P0 | 4 | ||
| Low-level output current (recommended) | IOL | 15 | mA | VCC ≤ 1.8V; P3 to P0 | 4 | ||
| Ambient operating temperature | TA | -40 | 125 | °C | 4 | ||
| Junction temperature (recommended) | TJ | 125 | °C | 4 | |||
| Input diode clamp voltage | VIK | -1.2 | V | II = -18mA; VCC 1.65V to 5.5V | 5 | ||
| Power-on reset voltage, VCC rising | VPORR | 1.2 | 1.6 | V | VI = VCC or GND, IO = 0 | 5 | |
| Power-on reset voltage, VCC falling | VPORF | 0.75 | 1 | V | VI = VCC or GND, IO = 0 | 5 | |
| P port high-level output voltage | VOH | 1.2 | V | IOH = -8 mA; VCC = 1.65V | 5 | ||
| P port high-level output voltage | VOH | 1.8 | V | IOH = -8 mA; VCC = 2.3V | 5 | ||
| P port high-level output voltage | VOH | 2.6 | V | IOH = -8 mA; VCC = 3V | 5 | ||
| P port high-level output voltage | VOH | 4.1 | V | IOH = -8 mA; VCC = 4.5V | 5 | ||
| P port high-level output voltage | VOH | 1 | V | IOH = -10 mA; VCC = 1.65V | 5 | ||
| P port high-level output voltage | VOH | 1.7 | V | IOH = -10 mA; VCC = 2.3V | 5 | ||
| P port high-level output voltage | VOH | 2.5 | V | IOH = -10 mA; VCC = 3V | 5 | ||
| P port high-level output voltage | VOH | 4 | V | IOH = -10 mA; VCC = 4.5V | 5 | ||
| SDA low-level output current | IOL | 20 | mA | VOL = 0.4V; VCC 1.65V to 5.5V | 5 | ||
| P0 to P3 low-level output current | IOL | 8 | mA | VOL = 0.5V; VCC 1.65V to 5.5V | 5 | ||
| P0 to P3 low-level output current | IOL | 10 | mA | VOL = 0.7V; VCC 1.65V to 5.5V | 5 | ||
| INT low-level output current | IOL | 4 | mA | VOL = 0.4V; VCC 1.65V to 5.5V | 5 | ||
| P port input leakage current | II | -1 | 0 | 1 | µA | VI = VCC; VCC 1.65V to 5.5V | 5 |
| P port input leakage current | II | -2 | 0 | 2 | µA | VI = 5.5V; VCC 0V | 5 |
| SCL, SDA input leakage current | II | -1 | 0 | 1 | µA | VI = VCC or GND; VCC 1.65V to 5.5V | 5 |
| RESET input leakage current | II | -1 | 0 | 1 | µA | VI = VCC; VCC 1.65V to 5.5V | 6 |
| Quiescent supply current, operating mode | ICC | 22 | 40 | µA | VI = VCC, I/O = input, fSCL = 400kHz, tr = tf = 300ns; VCC 5.5V | 6 | |
| Quiescent supply current, operating mode | ICC | 11 | 20 | µA | VI = VCC, I/O = input, fSCL = 400kHz, tr = tf = 300ns; VCC 3.6V | 6 | |
| Quiescent supply current, operating mode | ICC | 8 | 10 | µA | VI = VCC, I/O = input, fSCL = 400kHz, tr = tf = 300ns; VCC 2.7V | 6 | |
| Quiescent supply current, operating mode | ICC | 5 | 8 | µA | VI = VCC, I/O = input, fSCL = 400kHz, tr = tf = 300ns; VCC 1.95V | 6 | |
| Quiescent supply current, standby mode | ICC | 1.5 | 3.9 | µA | VI = VCC, IO = 0, I/O = input, fSCL = 0kHz; VCC 5.5V | 6 | |
| Quiescent supply current, standby mode | ICC | 0.9 | 2.2 | µA | VI = VCC, IO = 0, I/O = input, fSCL = 0kHz; VCC 3.6V | 6 | |
| Quiescent supply current, standby mode | ICC | 0.6 | 1.8 | µA | VI = VCC, IO = 0, I/O = input, fSCL = 0kHz; VCC 2.7V | 6 | |
| Quiescent supply current, standby mode | ICC | 0.6 | 1.5 | µA | VI = VCC, IO = 0, I/O = input, fSCL = 0kHz; VCC 1.95V | 6 | |
| Input pin capacitance, SCL | CI | 4 | 5 | pF | VI = VCC or GND; VCC 1.65V to 5.5V | 6 | |
| Input-output pin capacitance, SDA | CIO | 7 | 10 | pF | VIO = VCC or GND; VCC 1.65V to 5.5V | 6 | |
| Input-output pin capacitance, P port | CIO | 7 | 10 | pF | VIO = VCC or GND; VCC 1.65V to 5.5V | 6 | |
| Junction-to-ambient thermal resistance | RθJA | 185.1 | °C/W | 5 | |||
| Junction-to-case (top) thermal resistance | RθJC(top) | 80 | °C/W | 5 | |||
| Junction-to-board thermal resistance | RθJB | 106.3 | °C/W | 5 | |||
| Junction-to-top characterization parameter | ΨJT | 21.5 | °C/W | 5 | |||
| Junction-to-board characterization parameter | ΨJB | 104.7 | °C/W | 5 |
CAD (KiCad official)
- Symbol:
TCA9537DGSR - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files:
tca9537dgsr-etched.step/tca9537dgsr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tca9537dgsr.step/tca9537dgsr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TEXAS INSTRUMENTS datasheet (32 pp, sha256
291079d99c49f1a7, retrieved 2026-10-22, 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 0.3, 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).