25LC128
TL16C554IF (2)TL16C554I (5)TL16C554 (24)TL16C55 (76)TL16C (142)TL16 (150)TL1 (648)

Hotenda

TL16C554IFN

IC QUAD UART W/FIFO 68-PLCC
Hotenda

TL16C554IFNR

IC ASYNC COMM ELEMENT 68-PLCC

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