IDT74FCT621AT

IDT54/74FCT621T/AT FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN) MILITARY AND COMMERCIAL TEMPERATURE RANGES FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN) Integrated Device Technology, Inc. IDT54/74FCT621T/AT FEATURES: Std. and A speed grades Low input and output leakage ≤1µA (max.) CMOS power levels True TTL input and output compatibility – VOH = 3.3V (typ.) – VOL = 0.3V (typ.) Power off disable outputs permit “live insertion” Meets or exceeds JEDEC standard 18 specifications Product available in Radiation Tolerant and Radiation Enhanced versions Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) Available in DIP, SOIC, CERPACK and LCC packages DESCRIPTION: The IDT54/74FCT621T/AT is an octal transceiver with non-inverting Open-Drain bus compatible outputs in both send and receive directions. The B bus outputs are capable of sinking 64mA providing very good capacitive drive characteristics. These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control function implementation allows for maximum flexibility in timing. FUNCTIONAL BLOCK DIAGRAM (1) PIN CONFIGURATIONS GAB A1 A2 A3 A4 A5 A6 A7 A8 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 GBA GAB P20-1, D20-1, SO20-2 & E20-1 A1 B1 Vcc GBA B1 B2 B3 B4 B5 B6 B7 B8 2538 drw 02 DIP/SOIC/CERPACK TOP VIEW INDEX A 2 –A 8 B 2 –B 8 7 Other Transceivers 2538 drw 01 A3 A4 A5 A6 A7 A2 A1 GAB Vcc GBA 3 4 5 6 7 8 2 1 2...