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| TD74BC541P/F TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic TD74BC541P,TD74BC541F Octal Bus Buffer with 3-State Outputs (Non-Inverted) The TD74BC541P/TD74BC541F is a high-speed octal 3-state buffer fabricated with silicon gate Bi-CMOS technology. It achieves the high-speed operation equivalent to the FAST family while maintaining the Bi-CMOS low-power dissipation. The TD74BC541P/F is a non-inverting buffer. It is controlled by two enable inputs (OE0, OE1). When either OE0 and OE1 are high, all eight outputs are in the high-impedance state, which facilitates the interface with bus lines. All inputs are equipped with resistors and diodes to protect against Electro Static Discharge (ESD). TD74BC541P Features * * * * * * High-speed operation ........................ tpd = 4.8 ns (typ.) Symmetrical output impedance ....... IOH = -15 mA (max) IOL = 48 mA (max) Low power dissipation ...................... ICCD = 8 mA (typ.) ICCZ = 10 mA (typ.) Operating temperature range .......... Ta = -40C to 85C High ESD protection ......................... 2000 V (MIL standard) Pin and function compatible with FAST (74F541) TD74BC541F Weight DIP20-P-300-2.54A : 1.48 g (typ.) SOP20-P-300-1.27 : 0.25 g (typ.) Input Protection Circuit and Output Equivalent Circuit VCC VCC Input Output 1 2002-07-11 TD74BC541P/F Pin Assignment (top view) Logic Symbol (1) (19) OE0 A0 A1 A2 A3 A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC OE1 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 OE0 OE1 & EN A0 A1 A2 A3 A4 A5 A6 A7 (2) (3) (4) (5) (6) (7) (8) (9) (18) (17) (16) (15) (14) (13) (12) (11) Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 GND 10 Truth Table Inputs OE0 H X L L OE1 X H L L An X X H L Outputs Yn Z Z H L X: Don't care Z: High impedance Absolute Maximum Ratings Characteristics Power supply voltage Input voltage Output voltage Input clamp diode current Output clamp diode current Output current (output low state) Power dissipation Storage temperature BC541P BC541F Symbol VCC VIN VO IIK IOK IOL PD Tstg Rating -0.5 to 7.0 -1.2 to VCC + 0.5 -0.5 to VCC + 0.5 30 -30 96 1380 860 -65 to 150 (Note 1) (Note 1) Unit V V V mA mA mA mW C Note 1: Ta = 25C 2 2002-07-11 TD74BC541P/F Recommended Operating Conditions Characteristics Power supply voltage Input voltage Output voltage Output current Operating temperature High level Low level Symbol VCC VIN VO IOH IOL Topr Min 4.5 0 0 3/4 3/4 -40 Typ. 5.0 3/4 3/4 3/4 3/4 25 Max 5.5 VCC VCC -15 48 85 Unit V V V mA C Electrical Characteristics DC Characteristics (unless otherwise specified, VCC = 4.5 V to 5.5 V, Ta = -40C to 85C) Characteristics High level Low level Input clamp voltage Symbol VIH VIL VIK IIK = -18 mA IOH = -3.0 mA High level Output voltage Low level VOL II Input current (all input pins) IIH IIL 3-state OFF leakage current Output short current (Note 2) IOZH IOZL IOS ICCL VOH IOH = -3.0 mA IOH = -15 mA IOL = 24 mA IOL = 48 mA VIN = VCC VIN = 2.7 V VIN = 0.5 V or GND VO = 2.7 V VO = 0.5 V VO = GND VIN = VCC or ground All outputs are low. VIN = VCC or ground All outputs are high. VIN = VCC or ground ICCZ All outputs are in the high-impedance state. One input: VIN = 0.5 V Other inputs: VCC or GND One input: VIN = VCC - 2.1 V Other inputs: VCC or GND 5.5 3/4 10 50 Test Condition 3/4 3/4 VCC 3/4 3/4 4.5 4.5 4.75 4.5 4.5 4.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 Min 2.0 3/4 3/4 2.4 2.7 2.0 3/4 3/4 3/4 3/4 3/4 3/4 3/4 -100 3/4 Typ. (Note 1) 3/4 3/4 3/4 3.4 3.4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 20 Max 3/4 0.8 -1.2 3/4 3/4 3/4 0.5 0.55 1.0 1.0 1.0 50 -50 -255 27 mA mA mA mA V V Unit Input voltage V Quiescent supply current (total) ICCH 5.5 3/4 10 50 mA DICC1 Quiescent supply current (each bit) DICC2 3/4 3/4 3/4 1.5 mA 3/4 3/4 3/4 1.5 Note 1: Typical value is measured at VCC = 5.0 V and Ta = 25C. Note 2: Only one output at a time should be shorted. Duration should not exceed one second. 3 2002-07-11 TD74BC541P/F AC Characteristics (Input tr = tf = 2.5 ns) Characteristics Symbol tpLH tpHL tpZH tpZL tpHZ tpLZ ICCD f = 1 MHz Output open CL = 50 pF Test Condition Min Propagation delay time A-Y 2.0 2.0 2.0 2.0 2.0 2.0 3/4 Ta = 25C VCC = 5.0 V Typ. 5.0 4.5 8.0 6.5 6.0 5.0 8 Max 6.3 5.8 9.5 9.5 9.5 8.5 13 Ta = -40C to 85C VCC = 5.0 V 10 % Min 2.0 2.0 2.0 2.0 2.0 2.0 3/4 Max 7.5 6.8 11.0 11.0 10.0 9.5 16 ns Unit 3-state output enable time -Y ns 3-state output disable time -Y ns Dynamic supply current mA Note 1: When measuring tpLH, tpHL, tpZH and tpHZ, the output pin should be connected as shown in Note 2. When measuring tpZL, and tpLZ, the output pin should be connected as shown in Note 3. 7V 500 9 Note 3 500 9 CL Output 500 9 CL Output Note 2 4 2002-07-11 TD74BC541P/F Package Dimensions Weight: 1.48 g (typ.) 5 2002-07-11 TD74BC541P/F Package Dimensions Weight: 0.25 g (typ.) 6 2002-07-11 TD74BC541P/F RESTRICTIONS ON PRODUCT USE 000707EBA * 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.. * 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. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 7 2002-07-11 |
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