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A RS-232 interface IC.

Package

(Logo)
MAX237EWG
0715

Die

(C) 1990 COPR.
(Logo)
P529X

siliconpr0n.org_map_maxim_max237ewg_single_maxim_max237ewg_infosecdj_mz_lmplan10x.thumb.jpg

Top metal imaged under LMplan 10x/0.25