TC74LCX16245(EL,F) Toshiba

TC74LCX16245AFT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX16245AFT Low-Voltage 16-Bit Bus Transceiver with 5-V Tolerant Inputs and Outputs The TC74LCX16245AFT is a high-performance CMOS 16-bit bus transceiver. 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 16-bit bus transceiver is controlled by direction control (DIR) inputs and output enable ( OE ) inputs which are common to each byte. It can be used as two 8-bit transceiver or one 16-bit Weight: 0.25 g (typ.) transceiver. The direction of data transmission is determined by the level of the DIR inputs. The OE inputs can be used to disable the device so that the busses are effectively isolated. 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 = 5.2 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 level fixed by means of pull-up or pull-down resistors. 1 2007-10-19 TC74LCX16245AFT Pin Assignment (top view) IEC Logic Symbol 48 1OE G3 1 48 1 1DIR 1OE 1DIR 3 EN1 (BA) 3 EN2 (AB) 1B1 2 47 1A1 25 2OE G6 24 1B2 3 46 1A2 2DIR 6 EN4 (BA) 6 EN5 (AB) GND 4 45 GND 47 2 1A1 1 1B1 1B3 5 44 1A3 2 46 3 1B4 6 43 1A4 1A2 1B2 44 5 1A3 1B3 V 7 42 V CC CC 43 6 1A4 1B4 41 8 1A5 1B5 1B5 8 41 1A5 40 9 1A6 1B6 38 11 1B6 9 40 1A6 1A7 1B7 37 12 1A8 1B8 GND 10 39 GND 36 13 2A1 4 2B1 5 1B7 11 38 1A7 35 14 2A2 2B2 33 16 1B8 12 37 1A8 2A3 2B3 32 17 2A4 2B4 2B1 13 36 2A1 30 19 2A5 2B5 29 20 2A6 2B6 2B2 14 35 2A2 27 22 2A7 2B7 26 23 GND 15 34 GND 2A8 2B8 2B3 16 33 2A3 2B4 17 32 2A4 V 18 31 V CC CC 2B5 19 30 2A5 2B6 20 29 2A6 GND 21 28 GND 2B7 22 27 2A7 2B8 23 26 2A8 2DIR 24 25 2OE 2 2007-10-19