R7F103GLJ3ZFB#BA0

R7F103GLJ3ZFB#BA0 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 #BA0 packing code. It is the compact-body flagship of the family: 256 KB code flash, 8 KB SRAM and 4 KB data flash, a 32 MHz RL78-S3 core, a 1.6 V to 5.5 V supply and a -40 °C to +105 °C grade in the smallest 64-pin outline Renesas offers here. The benefit is density — full pin count and full memory where the 12 x 12 mm LQFP no longer fits. Selection advice: the same product is also listed as #UA0 (tray) and #HA0 (embossed tape). Do not substitute the 64-pin LQFP codes (ZFA): the body grows to 12 x 12 mm at 0.65 mm pitch and the footprint differs, so the choice is made at layout time, not at purchasing. GLG codes halve code flash to 128 KB in this same LFQFP package. Parameters verified against Renesas Electronics documentation.