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HI-1575PCMF Datasheet(PDF) 9 Page - Holt Integrated Circuits |
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HI-1575PCMF Datasheet(HTML) 9 Page - Holt Integrated Circuits |
9 / 12 page VDD = 3.3 V, GND = 0V, T =Operating Temperature Range (unless otherwise specified) A AC ELECTRICAL CHARACTERISTICS HOLT INTEGRATED CIRCUITS 9 HI-1575 FIGURE 12. DIRECT COUPLED TEST CIRCUITS Isolation Transformer Point “A “ D HI-1575 TRANSMITTER HI-1575 RECEIVER 1:2.5 55 W 55 W 35 W 2.5:1 55 W 55 W 35 W BUSA/B BUSA/B Isolation Transformer Point “A “ D PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS RiseTtime tr 35 ohm load 100 300 ns Fall Time tf 35 ohm load 100 300 ns RECEIVER (See figures 8 and 9) Sync Transition Span t 1500 ns Short Data Transition Span t 500 ns Long Data Transition Span t 1000 ns Delay Mid-Parity to Flag Set t 2500 ns Flag Setup Time to Read t 0 ns Flag Reset Delay t 60 ns DATA BUS TIMING - WRITE (See figure 10) Strobe Pulse Width t 50 ns REG Write Setup Time t 50 ns REG Write Hold Time t 10 ns Databus / SYNC Write Setup Time t 50 ns Databus / SYNC Write Hold Time t 10 ns CHA/ Write Setup Time t 50 ns CHA/ Write Hold Time t 10 ns R/ Write Setup Time t 50 ns R/ Write Hold Time t 10 ns DATA BUS TIMING - READ (See figure 11) Strobe Pulse Width t 50 ns REG Read Setup Time t 50 ns REG Read Hold Time t 10 ns Data Read to Databus Valid t 60 ns Data Read to Databus Tri-state t 0 60 ns CHA/ Read Setup Time t 50 ns CHA/ Read Hold Time t 10 ns R/ Read Setup Time t 50 ns R/ Read Hold Time t 10 ns TRANSMITTER (Measured at Point “A ” in Figure 12) D R1 R2 R3 FH FR RF STR RWS RWH DWS DWH CHWS CHWH RWWS RWWH STR RRS RRH DRV DRT CHRS CHRH RWRS RWRH STRB CHB CHB W W STRB CHB CHB W W |
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