tc7wh245fu/fk 2009-09-29 1 toshiba cmos digital integrated circuit silicon monolithic tc7wh245fu,tc7wh245fk dual bus transceiver features ? high speed : t pd = 4.0 ns (typ.) at v cc = 5 v, c l = 15pf ? low power dissipation : i cc = 2 a (max) at ta = 25c ? high noise immunity : v nih = v nil = 28% v cc (min.) ? balanced propagation delays: t plh t phl ? wide operating voltage range: v cc (opr) = 2 to 5.5 v ? low noise : v olp = 0.8 v (max.) application notes 1) do not apply a signal to any bus terminal when it is in the output mode. dama ge my result. 2) all floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull down resistors or bus terminator ic?s such as the tohsiba tc40117bp. 3) a parasitic diode is formed between the bus and vcc terminals. therefore bus terminal can not be used to interface 5v to 3v systems directly marking pin assignment (top view) tc7wh245fu tc7wh245fk | ssop8-p-0.65 : 0.02 g ( ?) ssop8-p-0.50a : 0.01 g ( ?) 4 gnd 3 a2 1 dir 2 a1 v cc 8 b2 5 b1 6 g 7 product name sm8 us8 h 2 4 5 lot no. w h 2 4 5
tc7wh245fu/fk 2009-09-29 2 absolute maximum ratings (ta = 25c) characteristic symbol rating unit supply voltage v cc ?0.5 to 7 v dc input voltage v in ?0.5 tp 7 v dc output voltage v out ?0.5 tov cc + 0.5 v input diode current i ik ?20 ma output diode current i ok 20 (note 1) ma dc output current i out 25 ma dc vcc/ground current i cc 50 ma power dissipation p d 300(sm8) 200(us8) mw strage temperature t stg ?65 to 150 c leadtemperature(10s) t l 260 c note: using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, et c.) may cause this product to decreas e in the reliability significantly even if the operating conditions (i.e. operat ing temperature/current/voltage, etc. ) are within the absolute maximum ratings and the operating ranges. please design the appropriate reliability upon reviewing the toshiba semiconductor reliability handbook (?handling precautions?/derating concept and methods) and individual reliability data (i.e. reliability test report and estimated failure rate, etc). note 1: v out < gnd, v out > v cc iec logic symbol truth table x: don?t care z: high impedance operating ranges input function g dir a bus b bus output l l output input a = b l h input output b = a h x high impedance z characteristic symbol rating unit supply voltage v cc 2 to 5.5 v input voltage v in 0 to 5.5 v output voltage v out 0 to v cc v operating temperature t opr ? 40 to 85 c 0 to100 (v cc = 3.3 0.3 v) input rise and fall time d t /d v 0 to 20 (v cc = 5.0 0.5 v) ns/v 2 a1 g3 3 en 1 [ba] 3 en 2 [ ab ] 1 (7) (1) dir b1 b2 a2 (2) (3) (5) (6) g
tc7wh245fu/fk 2009-09-29 3 electrical characteristics dc characteristics ta = 25c ta = ? 40 to 85c characteristic symbol test condition v cc (v) min. typ. max. min. max. unit 2.0 1.5 ? ? 1.5 ? high-level input voltage v ih ? 3.0 to 5.5 v cc 0.7 ? ? v cc 0.7 ? 2.0 ? ? 0.5 ? 0.5 low-level input voltage v il ? 3.0 to 5.5 ? ? v cc 0.3 ? v cc 0.3 v 2.0 1.9 2.0 ? 1.9 ? 3.0 2.9 3.0 ? 2.9 ? i oh = ? 50 a 4.5 4.4 4.5 ? 4.4 ? i oh = ? 4 ma 3.0 2.58 ? ? 2.48 ? high-level output voltage v oh v in = v ih or v il i oh = ? 8 ma 4.5 3.94 ? ? 3.80 ? 2.0 ? 0.0 0.1 ? 0.1 3.0 ? 0.0 0.1 ? 0.1 i ol = 50 a 4.5 ? 0.0 0.1 ? 0.1 i ol = 4 ma 3.0 ? ? 0.36 ? 0.44 low-level output voltage v ol v in = v ih or v il i ol = 8 ma 4.5 ? ? 0.36 ? 0.44 v 3-state output off-state current i oz v in = v ih or v il v out = v cc or gnd 5.5 ? ? 0.25 ? 2.50 a input leakage current i in v in = 5.5 v or gnd 0 to 5.5 ? ? 0.1 ? 1.0 a quiescent spply current i cc v in = v cc or gnd 5.5 ? ? 2.0 ? 20.0 a
tc7wh245fu/fk 2009-09-29 4 ac characteristics (input: t r = t f = 3 ns) ta = 25c ta = ? 40 to 85c characteristic symbol test condition v cc (v) c l (pf) min. typ. max. min. max. unit 15 ? 5.8 8.4 1.0 10.0 3.3 0.3 50 ? 8.3 11.9 1.0 13.5 15 ? 4.0 5.5 1.0 6.5 propagation delay time t plh t phl ? 5.0 0.5 50 ? 5.5 7.5 1.0 8.5 ns 15 ? 8.5 13.2 1.0 15.5 3.3 0.3 50 ? 11.0 16.7 1.0 19.0 15 ? 5.8 8.5 1.0 10.0 3-state output enable time t pzl t pzh r l = 1 k 5.0 0.5 50 ? 7.3 10.6 1.0 12.0 ns 3.3 0.3 50 ? 11.5 15.8 1.0 18.0 3-state output disable time t plz t phz r l = 1 k 5.0 0.5 50 ? 7.0 9.7 1.0 11.0 ns 3.3 0.3 50 ? ? 1.5 ? 1.5 output to output skew t oslh t oshl (note 2) 5.0 0.5 50 ? ? 1.0 ? 1.0 ns input capacitance c in dir, g ? 4 10 ? 10 pf bus input capacitance c i/o an, bn ? 8 ? ? ? pf power dissipation capacitance c pd (note 3) ? 21 ? ? ? pf note 2: parameter gur anteed by design. t oslh = |t plhm ? t plhn |, t oshl = |t phlm ? t phln | note 3: c pd is defined as the value of the inte rnal equivalent capacitance which is calucurated from the operating current consumption without load. average iperating current c an be obtained by the equation: i cc (opr) = c pd ?v cc ?f in ? i cc /2 (per bit) noise characteristics (ta = 25c, input: t r = t f = 3 ns) characteritic symbol test condition v cc (v) typ. limit unit quiet output maximum dynamic v ol v olp c l = 50 pf 5.0 0.5 0.8 v quiet output minimum dynamic v ol v olv c l = 50 pf 5.0 ? 0.5 ? 0.8 v minimum high level dynamic input voltage v ihd c l = 50 pf 5.0 ? 3.5 v maximum low level dynamic input voltage v ild c l = 50 pf 5.0 ? 1.5 v input equivalent circuit input
tc7wh245fu/fk 2009-09-29 5 package dimensions weight: 0.02 g (typ.)
tc7wh245fu/fk 2009-09-29 6 package dimensions weight: 0.01 g (typ.)
tc7wh245fu/fk 2009-09-29 7 restrictions on product use ? toshiba corporation, and its subsidiaries and affiliates (collect ively "toshiba"), reserve the right to make changes to the in formation in this document, and related hardware, software and systems (collectively "product") without notice. ? this document and any information herein may not be reproduc ed without prior written permission from toshiba. even with toshiba's written permission, reproduc tion is permissible only if reproduction is without alteration/omission. ? though toshiba works continually to improve product's quality a nd reliability, product can malfunction or fail. customers are responsible for complying with safety standards and for prov iding adequate designs and safeguards for their hardware, software and systems which minimize risk and avoid situat ions in which a malfunction or failure of product could cause loss of human life, b odily injury or damage to property, including data loss or corruption. before customers use the product, create designs including the product, or incorporate the product into their own applications, cu stomers must also refer to and comply with (a) the latest ve rsions of all relevant toshiba information, including without limitation, this document, the specifications, the data sheets and applicat ion notes for product and the precautions and condi tions set forth in the "toshiba se miconductor reliability handbook" and (b) the instructions for the application with which the product will be us ed with or for. customers are solely responsible for all aspe cts of their own product design or applications, including but not limited to (a) determining the appropriateness of the use of this product in such design or applications; (b) eval uating and determining the applicability of any info rmation contained in this document, or in c harts, diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operatin g parameters for such designs and applications. toshiba assumes no liability for customers' product design or applications. ? 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