TC7SPN3125CFC 2009-02-02 1 toshiba digital integrated circuit silicon monolithic TC7SPN3125CFC low voltage/low power 1-bit dual supply bus buffer the tc7spn3125 is an advanced high-speed cmos 1-bit dual supply voltage interface bus buffer fabricated with silicon gate cmos technology. it is also designed with over voltage tolerant inputs and outputs up to 3.6 v. designed for use as an interface between a 1.2-v, 1.5-v, 1.8-v, or 2.5-v bus and a 1.8-v, 2.5-v or 3.3-v bus in mixed 1.2-v, 1.5-v, 1.8-v or 2.5-v/1.8-v, 2.5- v or 3.3-v supply systems. the a-input interfaces with the 1. 2-v, 1.5-v, 1.8- v or 2.5-v bus, the b-output with the 1. 8-v, 2.5-v, 3.3-v bus. the enable input ( oe ) can be used to disable the device so that the signal lines are effectively isolated. all inputs are equipped with prot ection circuits against static discharge or transi ent excess voltage. features (note) ? level converter for interfacing 1.2-v to 1. 8-v, 1.2-v to 2.5-v, 1.2- v to 3.3-v, 1.5-v to 2.5- v, 1.5-v to 3.3-v, 1.8-v to 2.5-v, 1.8-v to 3.3-v or 2.5 v to 3.3-v system. ? high-speed operation : t pd = 13.7 ns (max) (v cca = 2.5 0.2 v, v ccb = 3.3 0.3 v) t pd = 14.8 ns (max) (v cca = 1.8 0.15 v, v ccb = 3.3 0.3 v) t pd = 16.0 ns (max) (v cca = 1.5 0.1 v, v ccb = 3.3 0.3 v) t pd = 29 ns (max) (v cca = 1.2 0.1 v, v ccb = 3.3 0.3 v) t pd = 18.5 ns (max) (v cca = 1.8 0.15 v, v ccb = 2.5 0.2 v) t pd = 19.7 ns (max) (v cca = 1.5 0.1 v, v ccb = 2.5 0.2 v) t pd = 33 ns (max) (v cca = 1.2 0.1 v, v ccb = 2.5 0.2 v) t pd = 43 ns (max) (v cca = 1.2 0.1 v, v ccb = 1.8 0.15 v) ? output current : i ohb / i olb = 3 ma (min) (v ccb = 3.0 v) i ohb / i olb = 2 ma (min) (v ccb = 2.3 v) i ohb / i olb = 0.5 ma (min) (v ccb = 1.65 v) ? latch-up performance: - 300 ma ? esd performance: machine model 200 v human body model 2000 v ? ultra-small package: cson6(cst6c) ? low current consumption : using the new circuit significantly reduces current consumption when oe = ?h?. suitable for battery-driven applications such as pdas and cellular phones. ? floating a-bus is permitted. (when oe = ?h?) ? 3.6-v tolerant function and power-down protec tion provided on all inputs and outputs. note: do not apply a signal to any bus pins when it is in the output mode. damage may result. cson6-p-0.45 weight: 0.002 g (typ.)
TC7SPN3125CFC 2009-02-02 2 pin assignment (top view) truth table inputs output oe a1 b1 l l l l h h h x z x: don?t care z: high impedance block diagram v cca v ccb a1 b1 oe logic level converter 1 2 3 6 5 4 a1 gnd v cca v ccb b1 oe
TC7SPN3125CFC 2009-02-02 3 absolute maximum ratings (note 1) characteristics symbol rating unit v cca ? 0.5 to 4.6 power supply voltage (note 2) v ccb ? 0.5 to 4.6 v dc input voltage (a1, oe ) v in ? 0.5 to 4.6 v ? 0.5 to 4.6 (note 3) dc output voltage (b1) v outb ? 0.5 to v ccb + 0.5 (note 4) v input diode current i ik ? 25 ma output diode current i ok 50 (note 5) ma dc output current i outb 6 ma i cca 25 dc v cc /ground current per supply pin i ccb 50 ma power dissipation p d 100 (note 6) mw storage temperature t stg ? 65 to 150 c note 1: exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in ic performance or even destruction. using continuously under heavy loads (e.g. the app lication of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temper ature/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 2: don?t supply a voltage to v ccb pin when v cca is in the off state. note 3: output in off state note 4: high or low state. i out absolute maximum rating must be observed. note 5: v out < gnd, v out > v cc note 6: mounted on an fr4 board. (25.4 mm 25.4 mm 1.6 mm, cu pad: 0.4mm 2 ) operating ranges (note 1) characteristics symbol rating unit v cca 1.1 to 2.7 power supply voltage v ccb 1.65 to 3.6 v input voltage (a1, oe ) v in 0 to 3.6 v 0 to 3.6 (note 2) output voltage (b1) v outb 0 to v ccb (note 3) v 3 (note 4) 2 (note 5) output current (b1) i outb 0.5 (note 6) ma operating temperature t opr ? 40 to 85 c input rise and fall time dt/dv 0 to 10 (note 7) ns/v note 1: the operating ranges must be maintai ned to ensure the normal op eration of the device. unused inputs must be tied to either v cc or gnd. note 2: output in off state note 3: high or low state note 4: v ccb = 3.0 to 3.6 v note 5: v ccb = 2.3 to 2.7 v note 6: v ccb = 1.65 to 1.95 v note 7: v in = 0.8 to 2.0 v, v cca = 2.5 v, v ccb = 3.0 v
TC7SPN3125CFC 2009-02-02 4 electrical characteristics dc characteristics (1.1 v v cca 2.7 v, 1.65 v v ccb 3.6 v) ta = ? 40 to 85c characteristics symbol test condition v cca (v) v ccb (v) min max unit 1.1 v cca <1.4 1.65 to 3.6 0.65 v cca ? 1.4 v cca <1.65 1.65 to 3.6 0.65 v cca ? 1.65 v cca <2.3 2.3 to 3.6 0.65 v cca ? h-level input voltage v iha a1, oe 2.3 v cca <2.7 2.7 to 3.6 1.6 ? v 1.1 v cca <1.4 1.65 to 3.6 ? 0.30 v cca 1.4 v cca <1.65 1.65 to 3.6 ? 0.30 v cca 1.65 v cca <2.3 2.3 to 3.6 ? 0.35 v cca l-level input voltage v ila a1, oe 2.3 v cca <2.7 2.7 to 3.6 ? 0.7 v i ohb = ? 100 a 1.1 to 2.7 1.65 to 3.6 v ccb ? 0.2 ? i ohb = ? 0.5 ma 1.1 to 1.65 1.65 1.25 ? i ohb = ? 2 ma 1.1 to 2.3 2.3 1.7 ? h-level output voltage v ohb a1 = v ih i ohb = ? 3 ma 1.1 to 2.7 3.0 2.2 ? v i olb = 100 a 1.1 to 2.7 1.65 to 3.6 ? 0.2 i olb = 0.5 ma 1.1 to 1.65 1.65 ? 0.3 i olb = 2 ma 1.1 to 2.3 2.3 ? 0.6 l-level output voltage v olb a1 = v il i olb = 3 ma 1.1 to 2.7 3.0 ? 0.55 v 3-state output off state current i ozb a1 = v iha or v ila b1 = 0 to 3.6 v 1.1 to 2.7 1.65 to 3.6 ? 2.0 a input leakage current i in v in = 0 to 3.6 v 1.1 to 2.7 1.65 to 3.6 ? 1.0 a i off1 v in , b1 = 0 to 3.6 v 0 0 ? 2.0 i off2 1.1 to 2.7 0 ? 2.0 power-off leakage current i off3 oe v cca a1, b1 = 0 to 3.6 v 1.1 to 2.7 open ? 2.0 a i cca v in = v cca or gnd 1.1 to 2.7 1.65 to 3.6 ? 2.0 i ccb v in = v cca or gnd 1.1 to 2.7 1.65 to 3.6 ? 2.0 i cca v cca < v in 3.6 v 1.1 to 2.7 1.65 to 3.6 ? 2.0 quiescent supply current i ccb v in = v cca v ccb b1 3.6 v 1.1 to 2.7 1.65 to 3.6 ? 2.0 a
TC7SPN3125CFC 2009-02-02 5 ac characteristics (ta = ? 40 to 85c, input: t r = t f = 2.0 ns) v cca = 2.5 0.2 v, v ccb = 3.3 0.3 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 13.7 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 16.6 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 7.2 ns v cca = 1.8 0.15 v, v ccb = 3.3 0.3 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 14.8 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 18.9 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 8.7 ns v cca = 1.5 0.1 v, v ccb = 3.3 0.3 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 16.0 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 22.8 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 10.2 ns v cca = 1.2 0.1 v, v ccb = 3.3 0.3 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 29 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 63 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 23 ns
TC7SPN3125CFC 2009-02-02 6 v cca = 1.8 0.15 v, v ccb = 2.5 0.2 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 18.5 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 23.6 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 6.9 ns v cca = 1.5 0.1 v, v ccb = 2.5 0.2 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 19.7 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 26.6 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 8.3 ns v cca = 1.2 0.1 v, v ccb = 2.5 0.2 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 33 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 66 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 20 ns v cca = 1.2 0.1 v, v ccb = 1.8 0.15 v characteristics symbol te st condition min max unit propagation delay time (a1 b1) t plh t phl figure 1, figure 2 1.0 43 3-state output enable time ( oe b1) t pzl t pzh figure 1, figure 3 1.0 78 3-state output disable time ( oe b1) t plz t phz figure 1, figure 3 1.0 20 ns
TC7SPN3125CFC 2009-02-02 7 capacitive characteristics (ta=25c) characteristics symbol test condition v cca (v) v ccb (v) typ. unit input capacitance c in oe , a1 2.5 3.3 7 pf output capacitance c out b1 2.5 3.3 8 pf oe =?l? 2.5 3.3 3 c pda oe =?h? 2.5 3.3 0 oe =?l? 2.5 3.3 13 power dissipation capacitance (note) c pdb oe =?h? 2.5 3.3 0 pf note: c pd is defined as the value of the internal equivalent capacitance which is ca lculated from the operating current consumption without load. average operating current can be obtained by the equation: i cc (opr) = c pd ?v cc ?f in + i cc /2 (per bit) ac test circuit v ccb symbol 3.3 0.3 v 2.5 0.2 v 1.8 0.15 v r l 1 k 1 k c l 30 pf 30 pf figure 1 v ccb open gnd switch out p ut measure r l c l parameter switch t plh , t phl open t plz , t pzl v ccb t phz , t pzh gnd
TC7SPN3125CFC 2009-02-02 8 ac waveform v cca , v ccb symbol 3.3 0.3 v 2.5 0.2 v 1.8 0.15 v 1.5 0.1 v 1.2 0.1 v v ih - v cca v cca input v im - v cca / 2 v cca / 2 v om v oh / 2 v oh / 2 - v x v ol + 0.3 v v ol + 0.15 v - output v y v oh ? 0.3 v v oh ? 0.15 v - figure 2 t plh , t phl 90% 10% output (b1) input (a1) v ol v oh v ih v om t plh t phl t r 2.0 ns t f 2.0 ns v im gnd 90% 10% v ol 3.0v or v ccb gnd v ih v om t phz t pzh t r 2.0 ns t f 2.0 ns v i m gnd v oh output enabled v om t plz t pzl v y output disabled output enabled output enable control ( oe ) output (b1) low to off to low output (b1) high to off to high v x figure 3 t plz , t phz , t pzl , t pzh
TC7SPN3125CFC 2009-02-02 9 package dimensions weight: 0.002 g (typ.) cson6-p-0.45
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