1 - Al Kossow's Bitsavers

TMS27162048-WORD BY 8-BIT ERASABLEPROGRAMMABLE READ-ONLY MEMORIESread cycle timingADDRESSESS IPGM)VIHVILVIHVILVOH•I-IIIIIIII-01-08 HI-Z,VOLtclrd)ADDRESSES VALID\taIS)~(taIA)~-II- tclrd) -I!ADDRESSES VALIDIIII"II,II I-- talA) --"""1VALIDtvIA)--I 1_VALID~ t}-HI.Z_'NOT VALIDI~ ~tdis=program cycle timingVIHIPE)VeelPE)t ~~ADDRESSES1 OF Nt PROGRAM LOOPS ----------a--lltr--------:--------! j~-------4LVee ~ tsulPE) thlPE) ---iVILVIHIPR)~ I -H r- tSLAXI 1m,ADDRESS 0 ADDRESS 1 ... 2046 ( ADDRESS Z047 J.J:lJ.1r\LI.- thlA) -, -Fr ~ tsulAI theA) ~ -;;=r r.- tsulA) 1\ I: r-- tW(PR)--iul I ~ twIPR) --l=t;J I II I--- twIPR) ~ IS IPGM) --------"II I . I. I :VILIPR)--.tsulD) -1 f.- thlD) --j --F1 ~ tsulD) thID)., --l=1 I- tsu(D) thlD) ~ thIDA)=i;~AM :~~----IN-P-U-T---~X IN~T )t INPUTE~T-enQ)(,)'>Q)C~oa:c..wt VCC(PE) is at a v or + 12 V through N program loops where N