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IDT74FCT833BEB Datasheet(PDF) 2 Page - Integrated Device Technology |
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IDT74FCT833BEB Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 8 page 7.21 2 IDT54/74FCT833A/B FAST CMOS PARITY BUS TRANSCEIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN CONFIGURATIONS DIP/SOIC/CERPACK TOP VIEW LCC TOP VIEW 2557 tbl 01 PIN DESCRIPTION Pin Name I/O Description OER I RECEIVE enable input. RI I/O 8-bit RECEIVE data input/output. ERR O Output from fault registers. Register detection of odd parity fault on rising clock edge (CLK). A registered ERR output remains LOW until cleared. Open drain output, requires pull up resistor. CLR I Clears the fault register output. TI I/O 8-bit TRANSMIT data input/output. PARITY I/O 1-bit PARITY output. OET I TRANSMIT enable input. CLK I External clock pulse input for fault register flag. ERROR FLAG OUTPUT FUNCTION TABLE (1,2) Internal Output Inputs To Device Pre-State Output CLR CLR CLK Point “P” ERR ERRn–1 ERR ERR Function H ↑ H H H Sample H ↑ — L L (1’s H ↑ L — L Capture) L — — — H Clear NOTES: 2557 tbl 02 1. OET is HIGH and OER is LOW. 2. H = HIGH L = LOW ↑ = LOW-to-HIGH transition of clock – = Don't Care or Irrelevant 5 6 7 8 9 10 11 12 GND R1 R2 R3 1 2 3 4 24 23 22 21 20 19 18 17 Vcc 16 15 14 13 OE P24-1, D24-1, S024-2 & E24-1 T1 R4 R5 R6 T2 T3 T4 T5 CLK CLR OE ERR PARITY T T6 T7 T0 R R7 R0 5 6 7 8 9 10 11 L28-1 25 24 23 22 21 20 19 12 13 14 15 16 17 18 43 2 1 28 27 26 INDEX 2557 drw 02 R2 R3 R4 R5 R6 T2 T3 T4 T5 T6 T7 R7 NC NC |
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