R7F103GLG3ZFB#UA0

R7F103GLG3ZFB#UA0 is a Renesas Electronics RL78/G21 16-bit microcontroller in a 64-pin LFQFP package (10 x 10 mm, 0.50 mm pitch, Renesas code PLQP0064KB-C), supplied in trays under the #UA0 packing code. It offers 128 KB code flash, 8 KB SRAM and 4 KB data flash around the 32 MHz RL78-S3 core, on a 1.6 V to 5.5 V supply with a -40 °C to +105 °C operating grade. The part suits space-constrained designs that still need 64 pins of GPIO and peripherals, where firmware size stays moderate. Selection advice: the datasheet lists this product as #BA0 and #UA0 in trays and #HA0 on embossed tape, so Step up to the GLJ codes for 256 KB in the same package and footprint, or down in pin count to the 48-pin LFQFP codes (ZFB) if the board can spare the I/O; the 64-pin LQFP codes (ZFA) share the pin count but not the footprint. Parameters verified against Renesas Electronics documentation.