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WS57C191B/291B HIGH SPEED 2 K x 8 CMOS PROM/FtPROM
FOR M A IN T E N A N C E PU R PO SES ONLY! N O T TO B E USED FOR N E W DESIGNS. SEE WS57C191 C/291 C FOR N E W VERSION!
KEY FEATURES ยท Ultra-Fast