TC7WBL126FK 2001-10-16 1 toshiba cmos digital integrated circuit silicon monolithic TC7WBL126FK dual low-voltage bus switch the TC7WBL126FK is a low on-resistance, high-speed cmos 2-bit bus switch with low voltage operation. this bus switch allows the connections or disconnections to be made with minimal propagation delay while maintaining low power dissipation which is the feature of cmos. when output enable (oe) is at high level, the switch is on; when at low level, the switch is off. p-mos and n-mos channel block also allows that the device is suitable for analog signal transmission. all inputs are equipped with protection circuits to protect the device from static discharge. features ? operating voltage: v cc = 2~3.6 v ? high speed operation: t pd = 0.25 ns (max) @3 v ? ultra-low on resistance: r on = 5 ? (typ.) @3 v ? electro-static discharge (esd) performance: 200 v or more (jeita) 2000 v or more (mil) ? high noise immunity: v nih = v nil = 28% v cc (min) ? power-down protection for inputs and i/o terminals. ? package: us8 pin assignment (top view) weight: 0.01 g (typ.) v cc 8 b1 a2 7 6 5 1 2 3 4 gnd a1 b2 w b l 1 2 6 oe2 oe1 tentative
TC7WBL126FK 2001-10-16 2 truth table inputs oe function l disconnect h a port = b port system diagram maximum ratings characteristics symbol rating unit power supply range v cc ? 0.5~7.0 v dc input voltage v in ? 0.5~7.0 v dc switch voltage v s ? 0.5~7.0 v input diode current i ik ? 50 ma continuous channel current i s 128 ma power dissipation p d 200 mw dc v cc /gnd current i cc /i gnd 100 ma storage temperature t stg ? 65~150 c recommended operating conditions characteristics symbol rating unit supply voltage v cc 2.0~3.6 v input voltage v in 0~5.5 v switch voltage v s 0~5.5 v operating temperature t opr ? 40~85 c input rise and fall time dt/dv 0~10 ns/v a2 b2 oe2 a1 oe1 b1
TC7WBL126FK 2001-10-16 3 electrical characteristics dc characteristics (ta = = = = ? ? ? ? 40~85c) characteristics symbol test condition v cc (v) min typ. max unit ?h? level v ih ? 2.0~3.6 0.7 v cc ? ? control pin input voltage ?l? level v il ? 2.0~3.6 ? ? 0.3 v cc v input leakage current i in v in = 0~5.5 v 2.0~3.6 ? ? 1.0 a power off leakage current i off a, b, oe = 0~5.5 v 0 ? ? 1.0 a off-state leakage current (switch off) i sz a, b = 0~5.5 v, oe = gnd 2.0~3.6 ? ? 1.0 a v is = 0 v, i is = 30 ma (note 1) 3.0 ? 2 7 v is = 3.0 v, i is = 30 ma (note 1) 3.0 ? 3 7 v is = 2.4 v, i is = 15 ma (note 1) 3.0 ? 5 15 v is = 0 v, i is = 24 ma (note 2) 2.3 ? 3 10 v is = 2.3 v, i is = 24 ma (note 2) 2.3 ? 4 15 on resistance (note 3) r on ? v is = 1.7 v, i is = 15 ma (note 2) 2.3 ? 9 25 ? quiescent supply current i cc v in = v cc or gnd, i out = 0 3.6 ? ? 10 a note 1: the typical values are at v cc = 3.3 v, ta = 25 c. note 2: the typical values are at v cc = 2.5 v, ta = 25 c. note 3: measured by the voltage drop between a and b pins at the indicated current through the switch. on resistance is determined by the lower of the voltages on two (a or b) pins. ac characteristics (ta = = = = ? ? ? ? 40~85c) characteristics symbol test condition v cc (v) min max unit propagation delay time (bus to bus) t plh t phl figure 1, figure 2 (note 4) 3.0 ? 0.25 ns 3.0 ? tbd output enable time t pzl t pzh figure 1, figure 3 2.3 ? tbd ns 3.0 ? tbd output disable time t plz t phz figure 1, figure 3 2.3 ? tbd ns note 4: this parameter is guaranteed by design but is not tested. the bus switch contributes no propagation delay other than the rc delay of the typical on resistance of the switch and the 50 pf load capacitance, when driven by an ideal voltage the source (zero output impedance). capacitive characteristics (ta = = = = 25c) characteristics symbol test condition v cc (v) typ. unit control pin input capacitance c in (note 5) 3.0 3 pf switch terminal capacitance c i/o oe = gnd (note 5) 3.0 10 pf note 5: this item is guaranteed by design.
TC7WBL126FK 2001-10-16 4 ac test circuit ac waveform parameter switch t plh , t phl open t plz , t pzl 2 v cc t phz , t pzh gnd o p en 2 v cc gnd switch out p ut measure c l = 50 pf r l = 500 ? r l r l c l figure 1 90% 10% input (a, b) gnd v cc t r 2.5 ns t f 2.5 ns 50% output (b, a) v ol v oh 50% t plh t phl figure 2 t plh , t phl 90% 10% v ol v oh gnd v cc 50% t phz t pzh t r 2.5 ns t f 2.5 ns 50% gnd v oh outputs enabled 50% t plz t pzl 90% outputs disabled outputs enabled output enable (oe) output (a, b) low to off to low output (a, b) high to off to high 10% figure 3 t plz , t phz , t pzl , t pzh
TC7WBL126FK 2001-10-16 5 package dimensions weight: 0.01 g (typ.)
TC7WBL126FK 2001-10-16 6 ? 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
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