TD74BC541p/f 2002-07-11 1 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). features high-speed operation ........................ t pd = 4.8 ns (typ.) symmetrical output impedance ....... i oh = ? 15 ma (max) i ol = 48 ma (max) low power dissipation ...................... i ccd = 8 ma (typ.) i ccz = 10 a (typ.) operating temperature range .......... ta = ? 40c to 85c high esd protection ......................... 2000 v (mil standard) pin and function compatible with fast (74f541) input protection circuit and output equivalent circuit TD74BC541p TD74BC541f weight dip20-p-300-2.54a : 1.48 g (typ.) sop20-p-300-1.27 : 0.25 g (typ.) v cc input v cc output ( datasheet : )
TD74BC541p/f 2002-07-11 2 pin assignment (top view) logic symbol truth table inputs outputs oe0 oe1 an yn h x x z x h x z l l h h l l l l x: don?t care z: high impedance absolute maximum ratings characteristics symbol rating unit power supply voltage v cc 0.5 to 7.0 v input voltage v in 1.2 to v cc 0.5 v output voltage v o 0.5 to v cc 0.5 v input clamp diode current i ik 30 ma output clamp diode current i ok 30 ma output current (output low state) i ol 96 ma bc541p 1380 (note 1) power dissipation bc541f p d 860 (note 1) mw storage temperature t stg 65 to 150 c note 1: ta 25 c v cc 20 19 18 17 16 15 14 1 2 3 4 5 6 7 a0 a1 a2 a3 a4 a5 8 9 10 a6 a7 gnd 13 12 11 y7 y0 y1 y2 y3 y4 y5 y6 oe0 oe1 (19) (2) (4) (3) a7 a1 a0 (6) (5) (8) (7) (9) a2 a5 a4 a6 (18) (16) (14) (12) y7 y1 y3 y5 (17) (15) (13) y0 y2 y4 en (11) y6 a3 & (1) oe0 oe1
TD74BC541p/f 2002-07-11 3 recommended operating conditions characteristics symbol min typ. max unit power supply voltage v cc 4.5 5.0 5.5 v input voltage v in 0 v cc v output voltage v o 0 v cc v high level i oh 15 output current low level i ol 48 ma operating temperature t opr 40 25 85 c electrical characteristics dc characteristics (unless otherwise specified, v cc 4.5 v to 5.5 v, ta 40 c to 85 c) characteristics symbol test condition v cc min typ. (note 1) max unit high level v ih 2.0 input voltage low level v il 0.8 v input clamp voltage v ik i ik 18 ma 4.5 1.2 v i oh 3.0 ma 4.5 2.4 3.4 i oh 3.0 ma 4.75 2.7 3.4 high level v oh i oh 15 ma 4.5 2.0 i ol 24 ma 4.5 0.5 output voltage low level v ol i ol 48 ma 4.5 0.55 v i i v in v cc 5.5 1.0 i ih v in 2.7 v 5.5 1.0 input current (all input pins) i il v in 0.5 v or gnd 5.5 1.0 a i ozh v o 2.7 v 5.5 50 3-state off leakage current i ozl v o 0.5 v 5.5 50 a output short current (note 2) i os v o gnd 5.5 100 255 ma i ccl v in v cc or ground all outputs are low. 5.5 20 27 ma i cch v in v cc or ground all outputs are high. 5.5 10 50 quiescent supply current (total) i ccz v in v cc or ground all outputs are in the high-impedance state. 5.5 10 50 a i cc1 one input: v in 0.5 v other inputs: v cc or gnd 1.5 quiescent supply current (each bit) i cc2 one input: v in v cc 2.1 v other inputs: v cc or gnd 1.5 ma note 1: typical value is measured at v cc 5.0 v and ta 25 c. note 2: only one output at a time should be shorted. duration should not exceed one second.
TD74BC541p/f 2002-07-11 4 ac characteristics ( input t r t f 2.5 ns ) ta 25c v cc 5.0 v ta 40c to 85c v cc 5.0 v 10 % characteristics symbol test condition min typ. max min max unit t plh 2.0 5.0 6.3 2.0 7.5 propagation delay time a-y t phl 2.0 4.5 5.8 2.0 6.8 ns t pzh 2.0 8.0 9.5 2.0 11.0 3-state output enable time ? -y t pzl 2.0 6.5 9.5 2.0 11.0 ns t phz 2.0 6.0 9.5 2.0 10.0 3-state output disable time ? -y t plz c l 50 pf 2.0 5.0 8.5 2.0 9.5 ns dynamic supply current i ccd f 1 mhz output open 8 13 16 ma note 1: when measuring t plh , t phl , t pzh and t phz , the output pin should be connected as shown in note 2. when measuring t pzl , and t plz , the output pin should be connected as shown in note 3. output 500 c l note 2 output 500 c l 500 note 3 7 v
TD74BC541p/f 2002-07-11 5 package dimensions weight: 1.48 g (typ.)
TD74BC541p/f 2002-07-11 6 package dimensions weight: 0.25 g (typ.)
TD74BC541p/f 2002-07-11 7 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. 000707eb a restrictions on product use
|
