TC74LCX244FT(EL,K) Toshiba

TC74LCX244F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX244F, TC74LCX244FT, TC74LCX244FK Low-Voltage Octal Bus Buffer with 5-V Tolerant Inputs and Outputs The TC74LCX244 is a high-performance CMOS octal bus TC74LCX244F buffer. 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. The 74LCX244F/FT is a non-inverting 3-state buffer having two active-low output enables. This device is designed to be used with 3-state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge. TC74LCX244FT Features Low-voltage operation: V = 1.65 to 3.6 V CC High-speed operation: t = 6.5 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 Available in JEITA SOP, TSSOP and VSSOP (US) Power-down protection provided on all inputs and outputs TC74LCX244FK Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 244 type Weight SOP20-P-300-1.27A : 0.22 g (typ.) TSSOP20-P-0044-0.65A : 0.08 g (typ.) VSSOP20-P-0030-0.50 : 0.03 g (typ.) Note: The Electrical Characteristics of V =1.80.15V is only applicable for products which manufactured CC from January 2009 onward. Start of commercial production 1994-03 1 2014-03-01 TC74LCX244F/FT/FK Pin Assignment (top view) IEC Logic Symbol 1 1OE EN 1 20 V 1OE CC 2 18 1Y1 1A1 1A1 2 19 2OE 4 16 1Y2 1A2 6 14 2Y4 3 18 1Y1 1Y3 1A3 8 12 1Y4 1A4 1A2 4 17 2A4 2Y3 5 16 1Y2 19 2OE EN 1A3 6 15 2A3 11 9 2Y1 2A1 2Y2 7 14 1Y3 13 7 2Y2 2A2 15 5 2Y3 2A3 1A4 8 13 2A2 17 3 2Y4 2A4 2Y1 9 12 1Y4 GND 10 11 2A1 Truth Table Inputs Outputs OE An L L L L H H H X Z X: Dont care Z: High impedance 2 2014-03-01