PCA9571: Remote 8-bit general purpose outputs for 1 MHz I2C-bus
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.
sot1174-1_3d
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Remote 8-bit general purpose outputs for 1 MHz I2C-bus (REV 1.0) PDF (1.8 MB) PCA9571 | 22 Dec 2014 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic, extremely thin quad flat package; no leads 12 terminals (REV 1.0) PDF (256.0 kB) SOT1174-1 | 08 Feb 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| Standard product orientation 12NC ending 115 (REV 2.0) PDF (87.0 kB) SOT1174-1_115 | 04 Apr 2013 |
Ordering Information
| Product | Status |
|---|---|
| PCA9571GU | Active |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9571GU | | SOT1174-1 | Reel 7" Q1/T1 | Active | PCA9571GUX (9353 026 87115) | Standard Marking | PCA9571GU |    | Always Pb-free | 1 | 1 |
