component

PCA9535EDTR2G

Public Made by Adom

by adom

onsemi I/O Expanders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icspca9535edtr2gfactory-2.0.0extractor-text

Verified PCA9535EDTR2G

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 24 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: PCA9535EDTR2G · TSSOP-24 · 24 pins
  • ✓copper: 24 copper pads, none touching another net
  • ✓datasheet: all 24 pin names found in the 22-page datasheet
  • ✓distributor: lcsc C604661, digikey PCA9535EDTR2GOSTR-ND, mouser 863-PCA9535EDTR2G
  • ✓family: TSSOP-24_4.4x7.8mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-zhzke37l/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.21)
  • ✓pads: 24 pins = 24 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 24 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ pca9535edtr2g.kicad_sym✓ pca9535edtr2g.kicad_mod✓ pca9535edtr2g.step
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Ray Publish 0.1.0 3aa9bcd 9d ago

PCA9535EDTR2G

onsemi · I/O Expanders · TSSOP-24

PCA9535EDTR2G from onsemi, in a TSSOP-24. 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 INT output Active-LOW open-drain interrupt output, activated when any input state differs from its input port register state.
2 AD1 input Address input 1, used with AD0 and AD2 to set the I2C-bus slave address.
3 AD2 input Address input 2, used with AD0 and AD1 to set the I2C-bus slave address.
4 IO0_0 bidirectional Port 0 I/O 0, defaults to input at power-on and is 5.5 V tolerant.
5 IO0_1 bidirectional Port 0 I/O 1, defaults to input at power-on and is 5.5 V tolerant.
6 IO0_2 bidirectional Port 0 I/O 2, defaults to input at power-on and is 5.5 V tolerant.
7 IO0_3 bidirectional Port 0 I/O 3, defaults to input at power-on and is 5.5 V tolerant.
8 IO0_4 bidirectional Port 0 I/O 4, defaults to input at power-on and is 5.5 V tolerant.
9 IO0_5 bidirectional Port 0 I/O 5, defaults to input at power-on and is 5.5 V tolerant.
10 IO0_6 bidirectional Port 0 I/O 6, defaults to input at power-on and is 5.5 V tolerant.
11 IO0_7 bidirectional Port 0 I/O 7, defaults to input at power-on and is 5.5 V tolerant.
12 VSS power_in Supply ground.
13 IO1_0 bidirectional Port 1 I/O 0, defaults to input at power-on and is 5.5 V tolerant.
14 IO1_1 bidirectional Port 1 I/O 1, defaults to input at power-on and is 5.5 V tolerant.
15 IO1_2 bidirectional Port 1 I/O 2, defaults to input at power-on and is 5.5 V tolerant.
16 IO1_3 bidirectional Port 1 I/O 3, defaults to input at power-on and is 5.5 V tolerant.
17 IO1_4 bidirectional Port 1 I/O 4, defaults to input at power-on and is 5.5 V tolerant.
18 IO1_5 bidirectional Port 1 I/O 5, defaults to input at power-on and is 5.5 V tolerant.
19 IO1_6 bidirectional Port 1 I/O 6, defaults to input at power-on and is 5.5 V tolerant.
20 IO1_7 bidirectional Port 1 I/O 7, defaults to input at power-on and is 5.5 V tolerant.
21 AD0 input Address input 0, used with AD1 and AD2 to set the I2C-bus slave address.
22 SCL input I2C serial clock line input supporting 100 kHz, 400 kHz and 1 MHz clock frequencies.
23 SDA bidirectional I2C serial data line with 30 mA sink capability.
24 VDD power_in Supply voltage, 1.65 V to 5.5 V operating range.

Key specifications

Parameter Value
Manufacturer onsemi
Package TSSOP-24
Category Interface ICs
Pins 24

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Standby Current ISTB 39 100 µA Standby mode; no load; VI = 0 V; fSCL = 0 Hz; I/O = inputs 5
Power-On Reset Voltage VPOR 1.5 1.65 V 5
SDA Low-Level Output Current IOL 10 mA VOL = 0.4 V; VDD < 2.3 V 5
SDA Low-Level Output Current IOL 20 mA VOL = 0.4 V; VDD ≥ 2.3 V 5
SCL/SDA Leakage Current IL 1 µA VI = VDD or 0 V 5
SCL/SDA Input Capacitance CI 4.6 6 pF VI = 0 V 5
I/O Low-Level Output Current IOL 8 20 mA VOL = 0.5 V; VDD = 1.65 V 5
I/O Low-Level Output Current IOL 12 28 mA VOL = 0.5 V; VDD = 2.3 V 5
I/O Low-Level Output Current IOL 17 35 mA VOL = 0.5 V; VDD = 3.0 V 5
I/O Low-Level Output Current IOL 25 42 mA VOL = 0.5 V; VDD = 4.5 V 5
Total Low-Level Output Current IOL(tot) 400 mA VOL = 0.5 V; VDD = 4.5 V 5
High-Level Output Voltage VOH 1.2 V IOH = -3 mA; VDD = 1.65 V 5
High-Level Output Voltage VOH 1.1 V IOH = -4 mA; VDD = 1.65 V 5
High-Level Output Voltage VOH 1.8 V IOH = -8 mA; VDD = 2.3 V 5
High-Level Output Voltage VOH 1.7 V IOH = -10 mA; VDD = 2.3 V 5
High-Level Output Voltage VOH 2.6 V IOH = -8 mA; VDD = 3.0 V 5
High-Level Output Voltage VOH 2.5 V IOH = -10 mA; VDD = 3.0 V 5
High-Level Output Voltage VOH 4.1 V IOH = -8 mA; VDD = 4.5 V 5
High-Level Output Voltage VOH 4 V IOH = -10 mA; VDD = 4.5 V 5
I/O Input Leakage Current IL 1 µA VDD = 5.5 V; VI = VDD or 0 V 5
I/O Capacitance CI/O 3.7 5 pF 5
INT Low-Level Output Current IOL 6 mA VOL = 0.4 V 5
INT Output Capacitance CO 2.1 5 pF 5
AD Pins Leakage Current IL 1 µA VI = VDD or 0 V 5
AD Pins Input Capacitance CI 2.4 5 pF 5
Positive DC Supply Voltage VDD 1.65 5.5 V 4
Switch Input / Output Voltage VI/O 0 5.5 V 4
Operating Free-Air Temperature TA -55 125 °C 4
DC Supply Voltage VDD -0.5 7 V 4
Input / Output Pin Voltage VI/O -0.5 7 V 4
Input Current II 20 mA 4
Output Current IO 50 mA 4
DC Supply Current IDD 100 mA 4
DC Ground Current IGND 600 mA 4
Total Power Dissipation PTOT 600 mW 4
Power Dissipation per Output POUT 200 mW 4
Storage Temperature Range TSTG -65 150 °C 4
Lead Temperature TL 260 °C 1 mm from case for 10 seconds 4
Junction Temperature Under Bias TJ 150 °C 4
Thermal Resistance TSSOP-24 θJA 91 °C/W TSSOP-24; FR4 board, 10 mm-by-1 inch 2 oz copper trace, no air flow 4
SCL Clock Frequency, Standard Mode fSCL 0 0.1 MHz Standard Mode 6
SCL Clock Frequency, Fast Mode fSCL 0 0.4 MHz Fast Mode 6
SCL Clock Frequency, Fast Mode + fSCL 0 1 MHz Fast Mode + 6
Bus-Free Time STOP to START tBUF 0.5 µs Fast Mode + 6
Data Output Valid Time tV(Q) 200 ns VDD = 4.5 V to 5.5 V; CL ≤ 100 pF 6
Data Output Valid Time tV(Q) 350 ns VDD = 2.3 V to 4.5 V; CL ≤ 100 pF 6
Data Output Valid Time tV(Q) 550 ns VDD = 1.65 V to 2.3 V; CL ≤ 100 pF 6
Data Input Setup Time tSU(D) 100 ns CL ≤ 100 pF 6
Data Input Hold Time tH(D) 1 µs CL ≤ 100 pF 6
Interrupt Data Valid Time tV(INT_N) 4 µs CL ≤ 100 pF 6
Interrupt Reset Delay Time tRST(INT_N) 4 µs CL ≤ 100 pF 6

CAD (KiCad official)

  • Symbol: PCA9535EDTR2G
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: pca9535edtr2g-etched.step / pca9535edtr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9535edtr2g.step / pca9535edtr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (22 pp, sha256 5f24973b534cbc15, retrieved 2026-10-31, 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