Product Summary
The IDT74FCT646ATPY consists of a bus transceiver with 3-state D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. The IDT74FCT646ATPY utilizes GAB and GBA signals to control the transceiver functions. The IDT74FCT646ATPY utilizes the enable control (G) and direction (DIR) pins to control the transceiver functions. SAB and SBA control pins are provided to select either realtime or stored data transfer. The circuitry used for select control will eliminate the typical decoding glitch that occurs in a multiplexer during the transition between stored and realtime data. A LOW input level selects real-time data and a HIGH selects stored data.
Parametrics
IDT74FCT646ATPY absolute maximum ratings: (1)VTERM(2) Terminal Voltage with Respect to GND: –0.5 to +7.0 V; (2)VTERM(3) Terminal Voltage with Respect to GND: –0.5 to VCC+0.5V; (3)TSTG Storage Temperature: –65 to +150 ℃; (4)IOUT DC Output Current: –60 to +120 mA.
Features
IDT74FCT646ATPY features: (1)Low input and output leakage ≤1μA (max.); (2)Extended commercial range of -40℃ to +85℃; (3)CMOS power levels; (4)True TTL input and output compatibility; (5)VOH = 3.3V (typ.); (6)VOL = 0.3V (typ.); (7)Meets or exceeds JEDEC standard 18 specifications; (8)Product available in Radiation Tolerant and Radiation Enhanced versions; (9)Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked); (10)Available in DIP, SOIC, SSOP, QSOP, TSSOP, CERPACK and LCC packages; (11)Std., A, C and D speed grades; (12)High drive outputs (-15mA IOH, 64mA IOL); (13)Power off disable outputs permit live insertion.
Diagrams
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