TC74LCX573FT(EL,K) Toshiba

TC74LCX573F/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX573F, TC74LCX573FT, TC74LCX573FK Low-Voltage Octal D-Type Latch with 5-V Tolerant Inputs and Outputs The TC74LCX573 is a high-performance CMOS octal D-type TC74LCX573F latch. 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 8-bit D-type latch is controlled by a latch enable input (LE) and an output enable input ( OE ). When the OE input is high, the eight outputs are in a high-impedance state. All inputs are equipped with protection circuits against static TC74LCX573FT discharge. Features Low-voltage operation: V = 1.65 to 3.6 V CC High-speed operation: t = 8.0 ns (max) (V = 3.0 to 3.6 V) pd CC Output current: I /I = 24 mA (min) (V = 3.0 V) OH OL CC Latch-up performance: > 500 mA TC74LCX573FK Available in JEITA SOP, TSSOP and VSSOP (US) Power-down protection provided on all inputs and outputs Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 573 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 1994-10 1 2014-03-01 TC74LCX573F/FT/FK Pin Assignment (top view) IEC Logic Symbol (1) OE EN OE 1 20 V (11) CC LE C1 D0 2 19 Q0 (2) (19) Q0 D1 3 18 Q1 D0 1D (3) (18) D1 Q1 D2 4 17 Q2 (4) (17) D2 Q2 D3 5 16 Q3 (5) (16) D3 Q3 D4 6 15 Q4 (6) (15) D4 Q4 (7) (14) D5 7 14 Q5 D5 Q5 (8) (13) D6 Q6 D6 8 13 Q6 (9) (12) D7 Q7 D7 9 12 Q7 GND 10 11 LE Truth Table Inputs Outputs OE LE D H X X Z L L X Qn L H L L L H H H X: Dont care Z: High impedance Qn: Q outputs are latched at the time when the LE input is taken to a low logic level. System Diagram D0 D1 D2 D3 D4 D5 D6 D7 2 3 4 5 6 7 8 9 D D D D D D D D Q Q Q Q Q Q Q Q L L L L L L L L 11 LE 1 OE 19 18 17 16 15 14 13 12 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 2014-03-01