TC7WH240FU/fk 2005-05-24 1 toshiba cmos digital integrat ed circuit silicon monolithic TC7WH240FU,tc7wh240fk dual bus buffer inverted, 3-state outputs the tc7wh240 is an advanced high speed cmos dual bus buffers fabricated with silic on gate cmos technology. they schieve the high speed op eration similar to equivalent bipolar schottky ttl while main taining the cmos low power dissipation. the 7wh240 is an inverting 3-state buffer having two active-low output enables. this device is designed to be used with 3-state memory address drivers, etc. an input protection ci rcuit ensures that 0 to 7 v can be applied to the input pins without re gard to the supply voltage. this device can be used to interface 5 v to 3 v systems and two supply systems such as battery back up. this circuit prevents device destruction due to mismat ched supply and input voltages. features ? high speed: t pd = 3.6 ns (typ.) at v cc = 5 v ? low power dissipation: i cc = 2 a (max) at ta = 25c ? high noise immunity: v nih = v nil = 28% v cc (min) ? 5.5v tolerant inputs. ? balanced propagation delays: t plh ? t phl ? wide operating voltage range: v cc (opr) = 2~5.5 v ? low noise : v olp = 0.8 v (max.) marking pin assignment (top view) TC7WH240FU tc7wh240fk weight ssop8-p-0.65: 0.02 g (typ.) ssop8-p-0.50a: 0.01 g (typ.) sm8 type name h 2 4 0 lot no. w h 240 us8 gnd 3 4 8 7 6 5 2 y2 a1 g1 a2 y1 g2 v cc 1
TC7WH240FU/fk 2005-05-24 2 maximum ratings (ta 25c) characteristics symbol rating unit supply voltage range v cc ? 0.5~7.0 v dc input voltage v in ? 0.5~7.0 v dc output voltage v out ? 0.5~v cc + 0.5 v input diode current i ik ? 20 ma output diode current i ok 20 ma dc output current i out 25 ma dc v cc /ground current i cc 50 ma 300 (sm8) power dissipation p d 200 (us8) mw storage temperature t stg ? 65~150 c lead temperature (10 s) t l 260 c logic diagram truth table inputs outputs g a y l l h l h l h x z x : don?t care z : high impedance recommended operating conditions characteristics symbol rating unit supply voltage v cc 2.0~5.5 v input voltage v in 0~5.5 v output voltage v out 0~v cc v operating temperature t opr ? 40~85 c 0~100 (v cc = 3.3 0.3 v) input rise and fall time dt/dv 0~20 (v cc = 5 0.5 v) ns/v g1 y1 en a1 g2 y2 en a2
TC7WH240FU/fk 2005-05-24 3 electrical characteristics dc characteristics ta = 25c ta = ? 40~85c characteristics symbol test condition v cc (v) min typ. max min max unit 2.0 1.50 ? ? 1.50 ? high-level input voltage v ih ? 3.0~ 5.5 v cc 0.7 ? ? v cc 0.7 ? v 2.0 ? ? 0.50 ? 0.50 v low-level input voltage v il ? 3.0~ 5.5 ? ? v cc 0.3 ? v cc 0.3 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 ? v 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~ 5.5 ? ? 0.1 ? 1.0 a quiescent supply current i cc v in = v cc or gnd 5.5 ? ? 2.0 ? 20.0 a
TC7WH240FU/fk 2005-05-24 4 ac characteristics (input: t r = t f = 3 ns) ta = 25c ta = ? 40~85c characteristics symbol test condition v cc (v) c l (pf) min. typ. max. min. max. unit 15 ? 5.3 7.5 1.0 9.0 3.3 0.3 50 ? 7.8 11.0 1.0 12.5 15 ? 3.6 5.5 1.0 6.5 propagation delay time t plh t phl 5.0 0.5 50 ? 5.1 7.5 1.0 8.5 ns 15 ? 6.6 10.6 1.0 12.5 3.3 0.3 50 ? 9.1 14.1 1.0 16.0 15 ? 4.7 7.3 1.0 8.5 3-state output enable time t pzl t pzh r l = 1k ? 5.0 0.5 50 ? 6.2 9.3 1.0 10.5 ns 3.3 0.3 50 ? 10.3 14.0 1.0 16.0 3-state output disable time t plz t phz r l = 1k ? 5.0 0.5 50 ? 6.7 9.2 1.0 10.5 ns 3.3 0.3 50 ? ? 1.5 ? 1.5 output to output skew tos lh tos hl ( note 1) 5.0 0.5 50 ? ? 1.0 ? 1.0 ns input capacitance c in ? 4 10 ? 10 pf output capacitance c i/o ? 6 ? ? ? pf power dissipation capacitance (note 2) c pd ? 17 ? ? ? pf / p u f 1 1 b s b n f u f s h v b s b o u f f e c z e f t j h o u p t - ) c u q - ) n u q - ) o cz u p t ) - c u q ) - n u q ) - o c note 2:c pd j t e f g j o f e b t u i f w b m v f p g u i f j o u f s n b m f r v j w b m f o u d b q b d j u b o d f x i j d i j t d b m d v m b u f e g s p n u i f p q f s b u j o h d v s s f o u d p o t v n q u j p o x j u i p v u m p b e " w f s b h f p q f s b u j o h d v s s f o u d b o c f p c u b j o f e c z u i f f r v b u j p o i cc (opr) = c pd k v cc k f in + i cc /2 noise characteristics (ta = 25c, input: t r = t f = 3 ns) characteristics symbol test condition v cc (v) typ. limit unit quiet output maximum dynamic v ol v olp c l = 50 pf 5.0 0.3 0.8 v quiet output minimum dynamic v ol v olv c l = 50 pf 5.0 ? 0.3 ? 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
TC7WH240FU/fk 2005-05-24 5 package dimensions weight: 0.02 g (typ.)
TC7WH240FU/fk 2005-05-24 6 package dimensions weight: 0.01 g (typ.)
TC7WH240FU/fk 2005-05-24 7 ? the information contained herein is subject to change without notice. ? 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. ? toshiba is continually working to improve the quality an d reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inhe rent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba produc ts, 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 s pecified operating ranges as set forth in the most recent toshiba products specific ations. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semicon ductor devices,? or ?toshiba semiconductor reliability handbook? etc.. ? the toshiba products listed in this document are inte nded for usage in general electronics applications (computer, personal equipment, office equipment, measuri ng 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 malfunc tion or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control in struments, airplane or spaceship instruments, transportation instruments, traffic signa l instruments, combusti on control instruments, medical instruments, all types of safety devices, etc .. unintended usage of toshiba products listed in this document shall be made at th e customer?s own risk. ? toshiba products should not be embedded to the do wnstream products which ar e prohibited to be produced and sold, under any law and regulations. 030619eaa restrictions on product use
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