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P1757M-40PGM Datasheet(PDF) 8 Page - Pyramid Semiconductor Corporation |
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P1757M-40PGM Datasheet(HTML) 8 Page - Pyramid Semiconductor Corporation |
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8 / 34 page  PACE 1757 M/ME Page 8 of 34 Document # MICRO-10 REV B SIGNAL PROPAGATION DELAYS Symbol Description MIN MAX MIN MAX MIN MAX MIN MAX TC(BR) L BUS REQUEST 33 25 22 22 TC(BR) H 33 25 22 22 TBG V(C) BUSGRANT - Setup 5 5 5 5 TC(BG) X BUSGRANT - Hold 555 5 TC(BB) L BUS BUSY 25 24 22 20 TC(BB) H 25 20 18 17 TBB V(C) BUS BUSY - Setup 555 5 TC(BB) X BUS BUSY - Hold 555 5 TC(BL) L BUS LOCK 30 25 23 21 TC(BL) H 30 20 19 17 TBL V(C) BUS LOCK - Setup 555 5 TC(BL) X(IN) BUS LOCK - Hold 555 5 TC(ST) V M/ IO 30 25 23 20 R/ W 30 25 23 20 AS0:AS3, AK0:AK3, D/ I 25 20 20 20 TC(ST) X M/ IO, R/W, AS0:AS3, AK0:AK3, D/I 000 0 TC(SA) H STRBA 2217 1616 TC(SA) L 22 17 16 16 TSA L(IBA)X Address Hold from STRBA(L) 5 5 5 5 TRA V(C) RDYA - Setup 5 5 5 5 TC(RA) X RDYA - Hold 5 5 5 5 TC(SDW) L STRBD 22 17 16 14 TC(SD) H 22 17 16 14 TFC(SDR) L 22 17 16 14 TIBD X(SDR)H 000 0 TSDW H(IBD)X 30 25 21 17 TSD L(SD)H(Write) 40262320 TRD(RD) X RDYD - Setup 555 5 TC(RD) X RDYD - Hold 5 5 5 5 TC(IBA) V IB0:IB15 30 25 23 20 TFC(IBA) X 000 0 TIBDR V(C) - Setup 555 5 TC(IBD) X(Read) - Hold 5 5 5 5 TC(IBD) X(Write) DATAVALID (OUT) 0 0 0 0 TFC(IBD) V 30 25 23 20 TC(SNW) SNEW 3026 2422 TFC(TGO) TRIGO RST 30 26 24 22 TRST L(DMA EN)L DMA ENABLE 40 35 33 30 TC(DME) 4035 3330 TFC(NPU) NORMAL POWER-UP 40 35 33 30 TC(ER) CLK TO MAJER (UNRCV ER) 60 50 47 45 TRST L(NPU) RESET 50 40 35 30 TREQ V(C) CON REQ 000 0 TC(REQ) X 10 10 10 10 TF V(BB)H LEVEL SENSITIVE FAULTS 5 5 5 5 TBB H(F)X 555 5 TIR V(C) IOL 1/2 INT. USR INT (0:5) - Setup 0 0 0 0 TC(IR) X PWRDN INT, LEVEL SENSITIVE - HOLD 10 10 10 10 TRST L(TRSTH) RESET PULSE WIDTH 25 20 18 15 TC(XX) Z CLK TO TRI-STATE 22 17 15 13 20 MHz 30 MHz 35 MHz 40 MHz Note 1: Units = ns |
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