worldwide corporate headquarters 16 malcolm hoyt drive . newburyport, ma 01950 phone 978.462.9332 . email sales@rocelec.com . web www.rocelec.com ? rochester electronics, llc - all rights reserved - 04062012 C n ew p roduct i ntroduction C mm54c89j rochester electronics has re-introduced and continues to manufacture critically needed semiconductors with the full authorization of the original manufacturer and an attention to quality that meets or exceeds the original component. mm54c89j original part number: mm54c89j description: 64-bit sram package: 16 pin dip manufacturing flow: mto manufacturing type: made from original national semi wafers mm54c89j/b mm54c89d mm54c89w mm54c89w/b mm54c89f MM74C89J mm74c89n related devices [ by temperature / package type / speed / application ] original manufacturer: military temperature sram in a 16-pin ceramic dip package the mm54c89/mm74c89 is a 16-word by 4-bit ran - dom access read/write memory. inputs to the memory consist of four address lines, four data input lines, a write enable line and a memory enable line. the four binary address inputs are decoded internally to select each of the 16 possible word locations. it features a wide supply voltage range of 3.0v to 15v and a guaranteed noise margin of 1.0v. the four tri-state data output lines working in conjunction with with the memory enable input provide for easy memory expansion. re-introduced by rochester electronics on january, 12, 2012
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