TC74LCX16646A(EL,F)

TC74LCX16646AFT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX16646AFT Low-Voltage 16-Bit Bus Transceiver/Register with 5-V Tolerant Inputs and Outputs The TC74LCX16646AFT is a high-performance CMOS 16-bit bus transceiver/register. Designed for use in 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (3.3 V) V applications, CC but it could be used to interface to 5-V supply environment for both inputs and outputs. This device is bus transceiver with 3-state outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the internal registers. Weight: 0.25 g (typ.) All inputs are equipped with protection circuits against static discharge. Features (Note) Low-voltage operation: V = 2.0 to 3.6 V CC High-speed operation: t = 6.0 ns (max) (V = 3.0 to 3.6 V) pd CC Ouput current: I /I = 24 mA (min) (V = 3.0 V) OH OL CC Latch-up performance: 500 mA Package: TSSOP Bidirectional interface between 5.0 V and 3.3 V signals Power-down protection provided on all inputs and outputs Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down resistors. Start of commercial production 1995-08 1 2014-03-01 TC74LCX16646AFT Pin Assignment (top view) IEC Logic Symbol 56 1OE G3 1DIR 1 56 1OE 1 1DIR 3EN1 BA 1CAB 2 55 1CBA 3EN2 AB 55 1CBA C4 1SAB 3 54 1SBA 54 1SBA G5 2 1CAB C6 GND 4 53 GND 3 1SAB G7 29 1A1 5 52 1B1 2OE G10 28 2DIR 10EN8 BA 1A2 6 51 1B2 10EN9 AB 30 2CBA C11 V 7 50 V CC CC 31 2SBA G12 27 1A3 8 49 1B3 2CAB C13 26 2SAB G14 1A4 9 48 1B4 52 > 1 5 4D 1B1 5 1A5 10 47 1B5 1A1 1 5 1 > GND 11 46 GND 6D 7 1 1 7 2 1A6 12 45 1B6 6 51 1A2 1B2 1A7 13 44 1B7 8 49 1A3 1B3 1A8 14 43 1B8 9 48 2A1 15 42 2B1 1A4 1B4 2A2 16 41 2B2 10 47 1A5 1B5 2A3 17 40 2B3 12 45 1A6 1B6 GND 18 39 GND 13 44 1A7 1B7 2A4 19 38 2B4 14 43 1A8 1B8 2A5 20 37 2B5 42 > 1 12 11D 2B1 15 2A1 2A6 21 36 2B6 8 12 1 > 13D 14 1 V 22 35 V CC CC 14 1 9 2A7 23 34 2B7 16 41 2A2 2B2 2A8 24 33 2B8 17 40 2A3 2B3 GND 25 32 GND 19 38 2A4 2B4 2SAB 26 31 2SBA 20 37 2CAB 27 30 2CBA 2A5 2B5 2DIR 28 29 2OE 21 36 2A6 2B6 23 34 2A7 2B7 24 33 2A8 2B8 2 2014-03-01