TC74ACT240,244P/F/FW/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74ACT240P,TC74ACT240F,TC74ACT240FW,TC74ACT240FT TC74ACT244P,TC74ACT244F,TC74ACT244FW,TC74ACT244FT Octal Bus Buffer TC74ACT240P/F/FW/FT Inverted, 3-State Outputs TC74ACT244P/F/FW/FT Non-Inverted, 3-State Outputs The TC74ACT240 and 244 are advanced high speed CMOS OCTAL BUS BUFFERs fabricated with silicon gate and double-layer metal wiring C2MOS technology. They achieve the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The 74ACT240 is an inverting 3-state buffer while the 74ACT244 is non-inverting. Both devices have two active-low output enables. These devices are designed to be used in such applications as 3-state memory address drivers. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Note: xxxFW (JEDEC SOP) is not available in Japan. TC74ACT240P, TC74ACT244P TC74ACT240F, TC74ACT244F Features * High speed: tpd = 5.0 ns (typ.) at VCC = 5 V * Low power dissipation: ICC = 8 A (max) at Ta = 25C * Compatible with TTL outputs: VIL = 0.8 V (max) VIH = 2.0 V (min) * Symmetrical output impedance: |IOH| = IOL = 24 mA (min) * Capability of driving 50 transmission lines. tpHL Balanced propagation delays: tpLH - * Pin and function compatible with 74F240/244 TC74ACT240FW, TC74ACT244FW TC74ACT240FT, TC74ACT244FT Weight DIP20-P-300-2.54A SOP20-P-300-1.27A SOP20-P-300-1.27 SOL20-P-300-1.27 TSSOP20-P-0044-0.65A : 1.30 g (typ.) : 0.22 g (typ.) : 0.22 g (typ.) : 0.46 g (typ.) : 0.08 g (typ.) 1 2006-02-01 TC74ACT240,244P/F/FW/FT Pin Assignment TC74ACT240 TC74ACT244 1G 1 20 VCC 1G 1 20 VCC 1A1 2 19 2G 1A1 2 19 2G 3 18 1Y1 2Y4 3 18 1Y1 1A2 4 17 2A4 1A2 4 17 2A4 2Y3 5 16 1Y 2 2Y3 5 16 1Y2 1A3 6 15 2A3 1A3 6 15 2A3 2Y 2 7 14 1Y 3 2Y2 7 14 1Y3 1A4 8 13 2A2 1A4 8 13 2A2 2Y1 9 12 1Y 4 2Y1 9 12 1Y4 GND 10 11 2A1 GND 10 11 2A1 2Y 4 (top view) (top view) IEC Logic Symbol TC74ACT240 1G 1A1 1A2 1A3 1A4 2G 2A1 2A2 2A3 2A4 (1) TC74ACT244 EN 1G (2) (18) (4) (16) (6) (14) (8) (12) (19) 1A1 1Y1 1Y 2 1A2 1Y 3 1A3 1Y 4 1A4 EN 2G (11) (9) (13) (7) (15) (5) (17) (3) 2A1 2Y1 2Y 2 2A2 2Y3 2A3 2Y 4 2A4 (1) EN (2) (18) (4) (16) (6) (14) (8) (12) (19) 1Y1 1Y2 1Y3 1Y4 EN (11) (9) (13) (7) (15) (5) (17) (3) 2Y1 2Y2 2Y3 2Y4 Truth Table Inputs G Outputs An Yn (244) Y n (240) L L L H L H H L H X Z Z X: Don't care Z: High impedance 2 2006-02-01 TC74ACT240,244P/F/FW/FT Absolute Maximum Ratings (Note 1) Characteristics Symbol Rating Unit Supply voltage range VCC -0.5 to 7.0 V DC input voltage VIN -0.5 to VCC + 0.5 V DC output voltage VOUT -0.5 to VCC + 0.5 V Input diode current IIK 20 mA Output diode current IOK 50 mA DC output current IOUT 50 mA DC VCC/ground current ICC 200 mA Power dissipation PD 500 (DIP) (Note 2)/180 (SOP/TSSOP) mW Storage temperature Tstg -65 to 150 C Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Note 2: 500 mW in the range of Ta = -40 to 65C. From Ta = 65 to 85C a derating factor of -10 mW/C should be applied up to 300 mW. Recommended Operating Conditions (Note) Characteristics Symbol Rating Unit Supply voltage VCC 4.5 to 5.5 V Input voltage VIN 0 to VCC V Output voltage VOUT 0 to VCC V Operating temperature Topr -40 to 85 C Input rise and fall time dt/dV 0 to 10 ns/V Note: The recommended operating conditions are required to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. 3 2006-02-01 TC74ACT240,244P/F/FW/FT Electrical Characteristics DC Characteristics Test Condition Characteristics Ta = -40 to 85C Ta = 25C Symbol VCC (V) Min Typ. Max Min Max Unit High-level input voltage VIH 4.5 to 5.5 2.0 2.0 V Low-level input voltage VIL 4.5 to 5.5 0.8 0.8 V 4.5 4.4 4.5 4.4 4.5 3.94 3.80 5.5 3.85 4.5 0.0 0.1 0.1 4.5 0.36 0.44 5.5 1.65 5.5 0.5 5.0 A High-level output voltage Low-level output voltage IOH = -50 A VIN = VIH or IOH = -24 mA VIL IOH = -75 mA VOH (Note) IOL = 50 A VIN = VIH or IOL = 24 mA VIL IOL = 75 mA VOL (Note) VIN = VIH or VIL V V 3-state output off-state current IOZ Input leakage current IIN VIN = VCC or GND 5.5 0.1 1.0 A ICC VIN = VCC or GND 5.5 8.0 80.0 A 5.5 1.35 1.5 mA Ta = -40 to 85C Unit Quiescent supply current Note: VOUT = VCC or GND Per input: VIN = 3.4 V IC Other input: VCC or GND This spec indicates the capability of driving 50 transmission lines. One output should be tested at a time for a 10 ms maximum duration. AC Characteristics (CL = 50 pF, RL = 500 , input: tr = tf = 3 ns) Characteristics Propagation delay time Output enable time Output disable time Input capacitance Output capacitance Power dissipation capacitance Note: Symbol tpLH tpHL tpZL tpZH tpLZ tpHZ Test Condition Ta = 25C VCC (V) Min Typ. Max Min Max 5.0 0.5 5.7 8.0 1.0 9.0 ns 5.0 0.5 6.0 9.0 1.0 10.5 ns 5.0 0.5 5.9 8.5 1.0 10.0 ns CIN 5 10 10 pF COUT 10 pF TC74ACT240 25 (Note) TC74ACT244 29 CPD pF CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD*VCC*fIN + ICC/8 (per bit) 4 2006-02-01 TC74ACT240,244P/F/FW/FT Package Dimensions Weight: 1.30 g (typ.) 5 2006-02-01 TC74ACT240,244P/F/FW/FT Package Dimensions Weight: 0.22 g (typ.) 6 2006-02-01 TC74ACT240,244P/F/FW/FT Package Dimensions Weight: 0.22 g (typ.) 7 2006-02-01 TC74ACT240,244P/F/FW/FT Package Dimensions (Note) Note: This package is not available in Japan. Weight: 0.46 g (typ.) 8 2006-02-01 TC74ACT240,244P/F/FW/FT Package Dimensions Weight: 0.08 g (typ.) 9 2006-02-01 TC74ACT240,244P/F/FW/FT Note: Lead (Pb)-Free Packages DIP20-P-300-2.54A SOP20-P-300-1.27A TSSOP20-P-0044-0.65A RESTRICTIONS ON PRODUCT USE 060116EBA * The information contained herein is subject to change without notice. 021023_D * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc. 021023_A * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. 021023_B * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_Q * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. 021023_C * The products described in this document are subject to the foreign exchange and foreign trade laws. 021023_E 10 2006-02-01