16-bit and 34-bit Bidirectional Voltage-Level Translation General-Purpose I/O (GPIO) Expanders for Automotive Applications

4 June 2021 - 0 Comments

Diodes Incorporated has introduced the 16-bit PI4IOE5V6416Q and 34-bit PI4IOE5V6534Q bidirectional voltage-level translation general-purpose I/O (GPIO) expanders for automotive applications. The AEC-Q100 Grade 2 qualified devices come with a dual voltage rail and provide enhanced programmable I/O for next-generation low voltage microprocessors and microcontrollers via the I2C interface.

Both the devices operate from 1.65V to 5.5V on the GPIO port side, whereas the PI4IOE5V6416Q operates from 1.65V to 5.5V and the PI4IOE5V6534Q from 0.8V to 3.6V when they are on the SCL/SDA side (I2C interface). With an exceptionally low standby current consumption of 1.5µA at 5V and 1µA at 3.3V for the PI4IOE5V6416Q and 2µA at 3.3V for the PI4IOE5V6434Q, the device can interface with next-generation microchips on the SCL/SDA side.

Both PI4IOE5V6416Q and PI4IOE5V6534Q come with programmable open-drain outputs as part of the enhanced I/O features, the device also has an interrupt masking feature that allows the designer to mask the interrupt from an individual GPIO port and initiate a system-level action.

The 16-bit PI4IOE5V6416Q is packaged in a 24-pin TSSOP, and the 34-bit PI4IOE5V6534Q is available in the W-QFN4565-46 package. The unit price for the 16-bit PI4IOE5V6416Q is $1.80 in 3,000 piece quantities and $2.40 for the 34-bit PI4IOE5V6534Q in 3,500 piece quantities.

Features of PI4IOE5V6416Q GPIO

Operation power supply voltage from 1.65V to 5.5V
Low standby current consumption:1.5 µA typical at 5 V VDD; 1 µA typical at 3.3 V VDD
400kHz IC-bus interface
Compliant with the FC-bus Fast and Standard modes
Programmable Push-pull/Open-drain output stages
Programmable output drive strength and pull-up/down resistor
Power-on reset
Active LOW open-drain interrupt output
Active LOW reset input
Latch-up tested (exceeds 100 mA)

Features of PI4IOE5V6534Q GPIO

Operating power supply voltage range of 8V to 3.6V on the I2C-bus side
Allows bidirectional voltage-level translation and GPIO expansion between:
8V to 3.6V SCL/SDA and 1.8/2.5/3.3/5.5V Port
Low standby current consumption:
2 μA typical at 3.3 V VDD(P)
5 V tolerant I/O ports and 3.6 V tolerant I2C-bus pins
1 MHz Fast-mode Plus I2C-bus interface
Compliant with the I2C-bus Fast-mode plus, Fast-mode and Standard mode
I/O Features
Output port configurations: bank selectable or pin selectable push-pull or open-drain output stages

Note: More technical information can be found in the PI4IOE5V6416Q Datasheet linked at the bottom of this page and on the PI4IOE5V6416Q and PI4IOE5V6534Q GPIO product page.