PCA9570
PCA9570 is Remote 4-bit general purpose outputs manufactured by NXP Semiconductors.
Remote 4-bit general purpose outputs for 1 MHz I2C-bus
Rev. 5
- 16 November 2017
Product data sheet
1. General description
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 patibility to Fast-mode (400 k Hz) and Standard-mode (100 k Hz).
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 m A 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.
2. Features and benefits
- 1 MHz I2C-bus interface with 6 m A SDA sink capability for lightly loaded buses (<100 p F) and improved power consumption
- pliant 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 m A 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 m A
- Packages offered: XQFN8 (0.5 mm lead pitch)
3. Applications
- Smart phones and tablets
- Portable medical equipment
- Portable instrumentation and test measurement
NXP Semiconductors
Remote 4-bit general purpose outputs for 1 MHz I2C-bus
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