TC74LCX245F(EL,K,F Toshiba

TC74LCX245F/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX245F, TC74LCX245FK Low-Voltage Octal Bus Transceiver with 5-V Tolerant Inputs and Outputs The TC74LCX245 is a high-performance CMOS octal bus transceiver. TC74LCX245F 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, but it CC could be used to interface to 5-V supply environment for both inputs and outputs. The direction of data transmission is determined by the level of the DIR input. The enable input ( OE ) can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static TC74LCX245FK discharge. Features (Note) Low-voltage operation: V 1.65 to 3.6 V CC High-speed operation: tpd 7.0 ns (max) (VCC 3.0 to 3.6 V) Ouput current: I /I 24 mA (min) (V 3.0 V) OH OL CC Available in JEITA SOP, VSSOP (US) Bidirectional interface between 5.0 V and 3.3 V signals Weight Power-down protection provided on all inputs and outputs SOP20-P-300-1.27A : 0.22 g ( typ.) Pin and function compatible with the 74 series VSSOP20-P-0030-0.50 : 0.03 g ( typ.) (74AC/VHC/HC/F/ALS/LS etc.) 245 type 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. Note: The Electrical Characteristics of V = 1.8 0.15 V is only applicable for products which manufactured CC from January 2009 onward. Start of commercial production 1994-03 2018-2021 2021-03-26 1 Toshiba Electronic Devices & Storage Corporation TC74LCX245F/FK Pin Assignment (top view) IEC Logic Symbol 19 G3 DIR 1 20 V CC 1 DIR 3 EN1 (BA) A1 2 19 3EN2 (AB) A2 3 18 B1 2 18 A1 1 B1 A3 4 17 B2 2 3 17 A2 B2 A4 5 16 B3 4 16 A5 6 15 B4 A3 B3 A6 7 14 B5 5 15 A4 B4 A7 8 13 B6 6 14 A5 B5 A8 9 12 B7 7 13 A6 B6 GND 10 11 B8 8 12 A7 B7 9 11 A8 B8 Truth Table Inputs Function Outputs OE DIR A-Bus B-Bus L L A B Output Input L H B A Input Output H X Z Z X: Dont care Z: High impedance 2018-2021 2021-03-26 2 Toshiba Electronic Devices & Storage Corporation