NXP Semiconductors PCAL6524 Ultra-Low Voltage I/O Expander
NXP Semiconductors PCAL6524 Ultra-Low Voltage I/O Expander provides remote I/O expansion for most microcontrollers using a Fast-mode Plus (Fm+) I2C-bus interface. The PCAL6524 24-bit general-purpose I/O expander has an ultra-low-voltage interface for direct connection to microcontrollers. This device provides a simple solution for when additional I/Os are needed while keeping interconnections to a minimum. This is ideal for battery-powered mobile applications for interfacing with sensors, pushbuttons, and keypads.
Features
- I2C-bus to parallel port expanders
- Operating power supply voltage range of 0.8V to 3.6V on the I2C-bus side
- Allows bidirectional voltage-level translation and GPIO expansion between 0.8V to 3.6V SCL/SDA and 1.8V, 2.5V, 3.3V, 5.5V Port P
- Low standby current consumption, 2.0µA typical at 3.3V VDD(P)
- Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
- Vhys = 0.05V (typical) at 0.8V
- Vhys = 0.18V (typical) at 1.8V
- Vhys = 0.33V (typical) at 3.3V
- 1MHz Fast-mode Plus I2C-bus
- 5.5V tolerant I/O ports and 3.6V tolerant I2C-bus pins
- Active LOW reset input (RESET)
- Open-drain active LOW interrupt output (INT)
- Internal power-on reset
- Noise filter on SCL/SDA inputs
- Latched outputs with 25mA drive maximum capability for directly driving LEDs
- Latch-up performance exceeds 100mA per JESD 78, Class II
- ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-A)
- 1000V Charged-Device Model (C101)
- TSSOP32 and HUQFN32 packages offered
Videos
Additional Resources
Development Tools
NXP Semiconductors PCAL6524EV 24-Bit GPIO Arduino Shield
Demonstration and development platform for the PCAL6524 Ultra-Low Voltage I/O Expander.
NXP Semiconductors Płyta programistyczna MCIMX93-QSB
Platforma do testowania procesorów aplikacyjnych i.MX 93 w obudowie 9 mm x 9 mm.
NXP Semiconductors Płyta programistyczna FRDM-IMX93
Powered by the i.MX 93 applications processor.
Related Products
NXP Semiconductors PCAL6534 34-bit General Purpose I/O Expander
Offers remote GPIO expansion for most MCUs via the Fm+ I2C-bus interface, with Agile I/O features.
NXP Semiconductors I2C General Purpose I/O Expanders
GPIO expansion for most microprocessor families, saving microprocessor GPIOs for critical functions.
Block Diagram
Opublikowano: 2016-02-10
| Zaktualizowano: 2024-11-21