FT234 autovtg BOM

BOM prices: digikey, 15th July 2023 / 11th Jan 2024

Part	€ @Qty=100	€ @Qty=1k
FT234XD1	1.9358	1.56368
LMV358AIDGKR	0.1634	0.083
BAT54AW	0.0841	0.03526
ESD5V3U2U	0.186	0.10461
74LVC1G17GW	0.1555 x2 2	0.07896 x2 2
BZX84C2V4LT1	0.0622	0.02610
USB-C (USB4105)	0.564	0.44866
PinHeader_1x04	0.0936	0.06779
PCB	~1	~0.8
R/C/L/LED	~0.5	~0.5
Sum:	4.9001	3.78702

¹) FT231XD (or other) necessary in case DTR signal is needed
²) x4 if RTS and DTR signals are needed
R/Cs: 0402; Ferrite bead & LED: 0603

Option: Extended voltage range down to 1.2V:

• 74LVC1T45GW,125 instead of 74LVC1G17GW x2 (0.25810€ @Qty=100; 0.15671€ @Qty=1k)
• TLV74112PDBVR 1.2V vreg instead of BZX84C2V4LT1 (0.12510€ @Qty=100; 0,05593€ @Qty=1k)
• => @Qty=100: + ~0.27€
• => @Qty=1k: + ~0.19€

Option: CP2102N instead of FT234:

• CP2102N-A02-GQFN20 @Qty=100: 2.99080€ (+ ~1€)
• CP2102N-A02-GQFN20 @Qty=1k: 2.14726€ (+ ~0.6€)

PCB:

• EDA: KiCad7
• 2L; ≥ 23.5 x 14.5 mm (without RTS/DTR)
• vias: 0.6mm (0.3mm drill)
• 0.2mm min track width; 0.13mm min spacing

Interactive BOM