PCA9570: Remote 4-bit general purpose outputs for 1 MHz I²C-bus
The PCA9570 is a CMOS device that provides 4 bits of General Purpose parallel Output (GPO) expansion in low voltage processor and handheld battery powered mobile applications. It operates at 1 MHz I²C‑bus speeds while maintaining backward compatibility to Fast-mode (400 kHz) and Standard-mode (100 kHz).
The PCA9570 is a streamlined GPO that consists of 4-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 PCA9570 output expander provides 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 PCA9570 contains an internal Power-On Reset (POR) and a Software Reset feature that initializes the device to its default state.
sot1309-1_3d
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Remote 4-bit general purpose outputs for 1 MHz I2C-bus (REV 4.0) PDF (1.8 MB) PCA9570 | 17 Sep 2014 |
Package Information (2)
| Name/Description | Modified Date |
|---|---|
| Plastic extremely thin quad flat package; no leads; 8 terminals (REV 1.3) PDF (206.0 kB) SOT902-2 | 14 Jul 2016 |
| plastic, extremely thin quad flat package; no leads (REV 1.0) PDF (181.0 kB) SOT1309-1 | 08 Feb 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| XQFN8(U); Reel pack, reverse; SMD, 7" Q3/T4 Standard product orientation Orderable part number ending ,125 or... (REV 1.0) PDF (201.0 kB) SOT902-2_125 | 02 May 2013 |
Ordering Information
| Product | Status |
|---|---|
| PCA9570GM4 | Introduction Pending |
| PCA9570DP | Introduction Pending |
| PCA9570GM | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9570GM |  | SOT902-2 | Reel 7" Q3/T4, Reverse | Active | PCA9570GMH (9352 983 48125) | Standard Marking | PCA9570GM |    | Always Pb-free | 1 | 1 | |
| PCA9570DP | Development | PCA9570DPJ (9352 983 47118) | Standard Marking | | Always Pb-free | 1 | 1 | |||||
| PCA9570GM4 | | SOT1309-1 | Reel 7" Q3/T4, Reverse | Development | PCA9570GM4H (9352 983 49125) | Standard Marking | | Always Pb-free | 1 | 1 |
