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PCA9548APWR

Public Made by Adom

by adom

Texas Instruments Interface - Specialized, TSSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs pca9548apwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pca9548apwr: viewers · Ray 29d ago
package.json Publish 0.1.0 · Ray 29d ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 13d ago
pca9548apwr-etched.fit.json pca9548apwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
pca9548apwr-etched.glb pca9548apwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
pca9548apwr-etched.step pca9548apwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
pca9548apwr.glb Publish 0.1.0 · Ray 29d ago
pca9548apwr.kicad_mod Publish 0.1.0 · Ray 29d ago
pca9548apwr.kicad_sym Publish 0.1.0 · Ray 29d ago
pca9548apwr.lbr Publish 0.1.0 · Ray 29d ago
pca9548apwr.step Publish 0.1.0 · Ray 29d ago
README.md pca9548apwr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago

PCA9548APWR

Texas Instruments · Interface - Specialized · TSSOP-24

PCA9548APWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A0 input Hardware I2C address input 0. Tie directly to VCC or GND to set the LSB of the device address. Static logic input, no internal pull.
2 A1 input Hardware I2C address input 1. Tie directly to VCC or GND to set an address bit. Static logic input, no internal pull.
3 RESET input Active-low reset input. Pulling low (>=6 ns pulse) resets the I2C/SMBus state machine and deselects all channels. Tie to VCC through a pull-up resistor if unused. VIH >= 0.7*VCC.
4 SD0 bidirectional Channel 0 serial data. Downstream I2C SDA line for channel 0, open-drain. Connect to VCC through an external pull-up resistor; 5 V tolerant.
5 SC0 bidirectional Channel 0 serial clock. Downstream I2C SCL line for channel 0, open-drain. Connect to VCC through an external pull-up resistor; 5 V tolerant.
6 SD1 bidirectional Channel 1 serial data. Downstream I2C SDA line for channel 1, open-drain. Connect to VCC through an external pull-up resistor.
7 SC1 bidirectional Channel 1 serial clock. Downstream I2C SCL line for channel 1, open-drain. Connect to VCC through an external pull-up resistor.
8 SD2 bidirectional Channel 2 serial data. Downstream I2C SDA line for channel 2, open-drain. Connect to VCC through an external pull-up resistor.
9 SC2 bidirectional Channel 2 serial clock. Downstream I2C SCL line for channel 2, open-drain. Connect to VCC through an external pull-up resistor.
10 SD3 bidirectional Channel 3 serial data. Downstream I2C SDA line for channel 3, open-drain. Connect to VCC through an external pull-up resistor.
11 SC3 bidirectional Channel 3 serial clock. Downstream I2C SCL line for channel 3, open-drain. Connect to VCC through an external pull-up resistor.
12 GND power_in Ground reference for the device. Tie to system ground.
13 SD4 bidirectional Channel 4 serial data. Downstream I2C SDA line for channel 4, open-drain. Connect to VCC through an external pull-up resistor.
14 SC4 bidirectional Channel 4 serial clock. Downstream I2C SCL line for channel 4, open-drain. Connect to VCC through an external pull-up resistor.
15 SD5 bidirectional Channel 5 serial data. Downstream I2C SDA line for channel 5, open-drain. Connect to VCC through an external pull-up resistor.
16 SC5 bidirectional Channel 5 serial clock. Downstream I2C SCL line for channel 5, open-drain. Connect to VCC through an external pull-up resistor.
17 SD6 bidirectional Channel 6 serial data. Downstream I2C SDA line for channel 6, open-drain. Connect to VCC through an external pull-up resistor.
18 SC6 bidirectional Channel 6 serial clock. Downstream I2C SCL line for channel 6, open-drain. Connect to VCC through an external pull-up resistor.
19 SD7 bidirectional Channel 7 serial data. Downstream I2C SDA line for channel 7, open-drain. Connect to VCC through an external pull-up resistor.
20 SC7 bidirectional Channel 7 serial clock. Downstream I2C SCL line for channel 7, open-drain. Connect to VCC through an external pull-up resistor.
21 A2 input Hardware I2C address input 2. Tie directly to VCC or GND to set an address bit. Static logic input, no internal pull.
22 SCL bidirectional Upstream (master-side) I2C serial clock bus. Open-drain; connect to VCC through an external pull-up resistor. Supports up to 400 kHz.
23 SDA bidirectional Upstream (master-side) I2C serial data bus. Open-drain; connect to VCC through an external pull-up resistor.
24 VCC power_in Positive supply voltage input. Operating range 2.3 V to 5.5 V. Decouple locally to GND (typ. 0.1 uF).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-24
Category Interface
Pins 24

Ordering variants

Same part, different packaging or reel option.

  • PCA9548APWR
  • PCA9548APWRDB
  • PCA9548APWRDBR
  • PCA9548APWRDGV
  • PCA9548APWRDGVR
  • PCA9548APWRDW
  • PCA9548APWRDWR
  • PCA9548APWRRGE
  • PCA9548APWRRGER

CAD (KiCad official)

  • Symbol: PCA9548APWR
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: pca9548apwr-etched.step / pca9548apwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9548apwr.step / pca9548apwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (45 pp, sha256 b2238acf0fecd58c, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF