Datasheet Details
| Part number | PCAL6534 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 2.50 MB |
| Description | Ultra low-voltage translating 34-bit Fm+ I2C-bus/SMBus I/O expander |
| Datasheet |
 PCAL6534 Datasheet
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General Description
The PCAL6534 is a 34-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the Fast-mode Plus (Fm+) I2C-bus interface.
The ultra low-voltage interface allows for direct connection to a microcontroller operating down to 0.8 V.
Key Features
- I2C-bus to parallel port expander.
- 1 MHz Fast-mode Plus I2C-bus.
- Operating power supply voltage range of 0.8 V to 3.6 V on the I2C-bus side.
- Allows bidirectional voltage-level translation and GPIO expansion between 0.8 V to 3.6 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V, 5.5 V Port P.
- Low standby current consumption: 2.0 A typical at 3.3 V VDD(P).
- Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs.
- Vhys =.