Remote 8-Bit General Purpose Outputs for 1 MHz I²C-Bus

PCA9571 Active
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

The PCA9571 is a CMOS device that provide 8 bits of General Purpose parallel Output (GPO) expansion in low voltage processor and handheld battery powered mobile applications. They operate at 1 MHz I²C-bus speeds on a lightly loaded bus (<100 pF) while maintaining backward compatibility to Fast-mode (400 kHz) and Standard-mode (100 kHz).

The PCA9571 is a streamlined GPO that consists of 8-bit push-pull outputs that offer low current consumption, small packaging options and a low operating voltage range of 1.1 V to 3.6 V. The latched outputs are symmetrical 4 mA current drive capability at 3.3 V to drive various control logic. The PCA9571 output expanders provide a simple solution when additional outputs are needed while keeping interconnections and floor space to a minimum, for example, in battery powered mobile applications where PCBs are crowded for interfacing to sensors, push buttons, etc.

The PCA9571 contains an internal Power-On Reset (POR) and a Software Reset feature that initializes the device to its default state.

Product Details

Features

Key Features

  • 1 MHz I²C-bus interface with 6 mA SDA sink capability for lightly loaded buses (<100 pF) and improved power consumption
  • Compliant with the I²C-bus Fast and Standard modes
  • 1.1 V to 3.6 V operation
  • Latched outputs with a sink/source capability of 4 mA at 3.3 V
  • Readable device ID (manufacturer, device type, and revision)
  • Software Reset
  • Power-On Reset
  • Low standby current
  • ‑40 °C to +85 °C operation
  • ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
  • Packages offered: XQFN12, TSSOP14 and DHVQFN14
N true 0 PSPPCA9571en 3 Data Sheet Data Sheet t520 1 Package Information Package Information t790 1 Packing Information Packing Information t935 1 en_US en_US en Data Sheet Data Sheet 1 1 2.0 English The PCA9571 is a CMOS device that provide 8 bits of General Purpose parallel Output (GPO) expansion in low-voltage processor and handheld battery powered mobile applications. 1442059336728702528314 PSP 1.7 MB None None documents None 1442059336728702528314 /docs/en/data-sheet/PCA9571.pdf 1711881 /docs/en/data-sheet/PCA9571.pdf PCA9571 documents N N 2018-09-24 Remote 8-bit general purpose outputs for 1 MHz I²C-bus /docs/en/data-sheet/PCA9571.pdf /docs/en/data-sheet/PCA9571.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Sep 21, 2018 980000996212993340 Data Sheet Y N Remote 8-bit general purpose outputs for 1 MHz I²C-bus Package Information Package Information 1 2 1.0 English 1455078823631719049861 PSP 261.9 KB None None documents None 1455078823631719049861 /docs/en/package-information/SOT1174-1.pdf 261910 /docs/en/package-information/SOT1174-1.pdf SOT1174-1 documents N N 2016-02-12 plastic, extremely thin quad flat package; no leads 12 terminals /docs/en/package-information/SOT1174-1.pdf /docs/en/package-information/SOT1174-1.pdf Package Information N 302435339416912908 2024-03-12 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic, extremely thin quad flat package; no leads 12 terminals Packing Information Packing Information 1 3 2.0 English 1442131569303729582546 PSP 89.2 KB None None documents None 1442131569303729582546 /docs/en/packing/SOT1174-1_115.pdf 89197 /docs/en/packing/SOT1174-1_115.pdf SOT1174-1_115 documents N N 2013-04-17 Standard product orientation 12NC ending 115 /docs/en/packing/SOT1174-1_115.pdf /docs/en/packing/SOT1174-1_115.pdf Packing Information N 145666923842250347 2023-10-17 pdf N en Apr 4, 2013 145666923842250347 Packing Information Y N Standard product orientation 12NC ending 115 false 0 PCA9571 downloads en true 1 Y PSP Y Y Data Sheet 1 /docs/en/data-sheet/PCA9571.pdf 2018-09-24 1442059336728702528314 PSP 1 Sep 21, 2018 Data Sheet The PCA9571 is a CMOS device that provide 8 bits of General Purpose parallel Output (GPO) expansion in low-voltage processor and handheld battery powered mobile applications. None /docs/en/data-sheet/PCA9571.pdf English documents 1711881 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/PCA9571.pdf Remote 8-bit general purpose outputs for 1 MHz I²C-bus /docs/en/data-sheet/PCA9571.pdf documents 980000996212993340 Data Sheet N en None Y pdf 2.0 N N Remote 8-bit general purpose outputs for 1 MHz I²C-bus 1.7 MB PCA9571 N 1442059336728702528314 Package Information 1 /docs/en/package-information/SOT1174-1.pdf 2016-02-12 1455078823631719049861 PSP 2 Feb 8, 2016 Package Information None /docs/en/package-information/SOT1174-1.pdf English documents 261910 None 302435339416912908 2024-03-12 N /docs/en/package-information/SOT1174-1.pdf plastic, extremely thin quad flat package; no leads 12 terminals /docs/en/package-information/SOT1174-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic, extremely thin quad flat package; no leads 12 terminals 261.9 KB SOT1174-1 N 1455078823631719049861 Packing Information 1 /docs/en/packing/SOT1174-1_115.pdf 2013-04-17 1442131569303729582546 PSP 3 Apr 4, 2013 Packing Information None /docs/en/packing/SOT1174-1_115.pdf English documents 89197 None 145666923842250347 2023-10-17 N /docs/en/packing/SOT1174-1_115.pdf Standard product orientation 12NC ending 115 /docs/en/packing/SOT1174-1_115.pdf documents 145666923842250347 Packing Information N en None Y pdf 2.0 N N Standard product orientation 12NC ending 115 89.2 KB SOT1174-1_115 N 1442131569303729582546 true Y Products

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