UPD78F1831AGBA2-GAH-G

Microcontrollers Overview

The UPD78F1831AGBA2-GAH-G is a 16-bit microcontroller belonging to the Renesas 78K0R/Fx3 family. It features a 78K0R CPU core with a maximum operating frequency of 24 MHz. The device includes 24 KB of program memory, 1.5 KB of RAM, and 16 KB of Data Flash. It provides 25 I/O ports and integrates multiple peripherals including one 16-bit timer channel group (13 channels), six 10-bit ADC channels, and DMA support. The unit operates within a supply voltage range of 2.7 V to 5.5 V and supports an extended temperature range from -40°C to +85°C.

Microcontrollers Feature Summary

• Integrates a 16-bit 78K0R CPU core for efficient instruction processing.
• Includes built-in Data Flash memory for non-volatile data storage.
• Supports Direct Memory Access (DMA) for peripheral-to-memory transfers.
• Features Low Voltage Detection (LVD) or Power-on Reset (PVD) capabilities.

Microcontrollers Applications

• Automotive body electronics control modules
• Industrial sensor interface units
• Consumer appliance main control boards

Microcontrollers Procurement Notes

Verify the specific suffix codes against official Renesas documentation to confirm package type and temperature grade. Confirm current lifecycle status as some 78K0R/Fx3 variants are designated for existing customers only. Ensure compatibility with required programming interfaces and check for any specific moisture sensitivity level handling requirements during assembly.

Microcontrollers Selection Notes

Select this component when a 16-bit architecture with moderate flash capacity and integrated analog peripherals is required. Compare against the RL78 series if lower power consumption is critical for new designs, as the 78K0R/Fx3 group is primarily supported for legacy adoption. Verify that the 24 MHz clock speed meets the real-time processing demands of the target application.

Microcontrollers Part Context

This part belongs to the 78K0R/Fx3 group, which is a subset of the broader 78K microcontroller family. This family is characterized by high performance and rich peripheral sets tailored for automotive and industrial applications. Official documentation indicates that support for this specific group is maintained primarily for customers who have already adopted these products in their designs.

Microcontrollers Replacement Considerations

Consult official Renesas cross-reference guides for verified substitutes. Potential alternatives within the same family may include other 78K0R/Fx3 variants with different memory sizes or pin counts. Do not assume functional equivalence with RL78 or R8C families without verifying register-level compatibility and peripheral differences.