JLC1562BFG

Overview

The JLC1562BFG is an I2C Bus I/O expander manufactured by onsemi, designed to facilitate easy bus expandibility. It provides an 8-bit bidirectional input/output port and a 6-bit resolution Digital to Analog Converter (DAC). The device supports up to eight units on the same I2C bus through selectable 3-bit addressing. It features five comparators at inputs for voltage threshold monitoring and includes internal pull-up resistors for address pins. The component operates within a DC supply voltage range of 4.2V to 6.0V and functions across a temperature range of -40°C to +85°C. It utilizes open-drain outputs and is housed in a 16-SOEIAJ package.

Feature Summary

• Supports I2C bus format with two-wire data transfer via SDA and SCL lines
• Integrates a 6-bit DAC with controllable threshold voltage comparison
• Features five comparators at inputs for external voltage monitoring
• Includes internal pull-up resistors for address input pins

Applications

• I2C bus system expansion
• Voltage threshold monitoring applications
• Digital-to-analog conversion tasks

Procurement Notes

Verify the specific ordering suffix 'F' corresponds to the SOEIAJ-16 package and 'G' indicates a lead-free construction as documented in the manufacturer's ordering information. Confirm that the component status aligns with current availability, as previous listings indicate potential discontinuation or limited stock from secondary distributors. Ensure compliance with RoHS requirements if applicable to the specific revision.

Selection Notes

Select this component when an I2C-compatible interface is required for expanding digital I/O capabilities in embedded systems. The inclusion of a 6-bit DAC and multiple comparators makes it suitable for applications needing analog output generation and voltage level detection alongside standard digital control. Verify that the operating voltage range of 4.2V to 6.0V matches the system power supply constraints.

Part Context

The JLC1562BFG belongs to the JLC1562B family of I/O expanders produced by onsemi. This series is engineered to provide flexible connectivity for microcontrollers requiring additional ports without consuming extra GPIO pins. The 'F' suffix denotes the surface-mount SOEIAJ-16 package, while the 'G' suffix signifies lead-free packaging compliant with environmental standards.

Replacement Considerations

Direct replacements include other variants within the JLC1562B family, such as the JLC1562BF for the non-leaded SOEIAJ-16 package or the JLC1562BN for the PDIP-16 through-hole configuration. Cross-vendor alternatives should be evaluated based on pin compatibility, I2C protocol support, and electrical specifications.