? 2005 fairchild semiconductor corporation ds010692 www.fairchildsemi.com march 1990 revised february 2005 74AC125 ? 74act125 quad buffer with 3-state outputs 74AC125 74act125 quad buffer with 3-state outputs general description the ac/act125 contains four independent non-inverting buffers with 3-state outputs. features i cc reduced by 50% outputs source/sink 24 ma act125 has ttl-compatible outputs ordering code: device also available in tape and reel. specify by appending suffix letter ?x? to the ordering code. pb-free package per jedec j-std-020b. note 1: ?_nl? indicates pb-free package (per jedec 4-std-020b). device available in tape and reel only. fact is a trademark of fairchild semiconductor corporation. order number package package description number 74AC125sc m14a 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150" narrow 74AC125scx_nl (note 1) m14a pb-free 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150" narrow 74AC125sj m14d pb-free 14-lead small outline package (sop), eiaj type ii, 5.3mm wide 74AC125mtc mtc14 14-lead thin shrink small outline package (tssop), jedec mo-153, 4.4mm wide 74AC125pc n14a 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300" wide 74act125sc m14a 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150" narrow 74AC125scx_nl (note 1) m14a pb-free 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150" narrow 74act125sj m14d pb-free 14-lead small outline package (sop), eiaj type ii, 5.3mm wide 74act125mtc mtc14 14-lead thin shrink small outline package (tssop), jedec mo-153, 4.4mm wide 74act125mtcx_nl (note 1) mtc14 pb-free 14-lead thin shrink small outline package (tssop), jedec mo-153, 4.4mm wide 74act125pc n14a 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300" wide www..net
www.fairchildsemi.com 2 74AC125 74act125 logic symbol ieee/iec pin descriptions connection diagram function table h high voltage level l low voltage level z high impedance x immaterial pin names description a n , b n inputs o n outputs inputs output a n b n o n ll l lh h hx z
3 www.fairchildsemi.com 74AC125 74act125 absolute maximum ratings (note 2) recommended operating conditions note 2: absolute maximum ratings are those values beyond which damage to the device may occur. the databook specifications should be met, with- out exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. fairchild does not recommend operation of fact circuits outside databook specifications. dc electrical characteristics for ac note 3: all outputs loaded; thresholds on input associated with output under test. note 4: maximum test duration 2.0 ms, one output loaded at a time. note 5: note: i in and i cc @ 3.0v are guaranteed to be less than or equal to the respective limit @ 5.5v v cc . supply voltage (v cc ) 0.5v to 7.0v dc input diode current (i k ) v i 0.5v 20 ma v i v cc 0.5v 20 ma dc input voltage (v i ) 0.5v to v cc 0.5v dc output diode current (i ok ) v o 0.5v 20 ma v o v cc 0.5v 20 ma dc output voltage (v o ) 0.5v to v cc 0.5v dc output source or sink current (i o ) r 50 ma dc v cc or ground current per output pin (i cc or i gnd ) r 50 ma storage temperature (t stg ) 65 q c to 150 q c junction temperature (t j ) pdip 140 q c supply voltage (v cc ) ac 2.0v to 6.0v act 4.5v to 5.5v input voltage (v i )0v to v cc output voltage (v o )0v to v cc operating temperature (t a ) 40 q c to 85 q c minimum input edge rate ( ' v/ ' t) ac devices v in from 30% to 70% of v cc v cc @ 3.3v, 4.5v, 5.5v 125 mv/ns minimum input edge rate ( ' v/ ' t) act devices v in from 0.8v to 2.0v v cc @ 4.5v, 5.5v 125 mv/ns symbol parameter v cc t a 25 q ct a 40 q c to 85 q c units conditions (v) typ guaranteed limits v ih minimum high level 3.0 1.5 2.1 2.1 v out 0.1v input voltage 4.5 2.25 3.15 3.15 v or v cc 0.1v 5.5 2.75 3.85 3.85 v il maximum low level 3.0 1.5 0.9 0.9 v out 0.1v input voltage 4.5 2.25 1.35 1.35 v or v cc 0.1v 5.5 2.75 1.65 1.65 v oh minimum high level 3.0 2.99 2.9 2.9 output voltage 4.5 4.49 4.4 4.4 v i out 50 p a 5.55.495.4 5.4 v in v il or v ih 3.0 2.56 2.46 i oh 12 ma 4.5 3.86 3.76 v i oh 24 ma 5.5 4.86 4.76 i oh 24 ma (note 3) v ol maximum low level 3.0 0.002 0.1 0.1 output voltage 4.5 0.001 0.1 0.1 v i out 50 p a 5.5 0.001 0.1 0.1 v in v il or v ih 3.0 0.36 0.44 i ol 12 ma 4.5 0.36 0.44 v i ol 24 ma 5.5 0.36 0.44 i ol 24 ma (note 3) i in (note 5) maximum input leakage current 5.5 r 0.1 r 1.0 p av i v cc , gnd i oz maximum 3-state current v i (oe) v il , v ih 5.5 r 0.25 r 2.5 p av i v cc , v gnd v o v cc , gnd i old minimum dynamic 5.5 75 ma v old 1.65v max i ohd output current (note 4) 5.5 75 ma v ohd 3.85v min i cc (note 5) maximum quiescent supply current 5.5 4.0 40.0 p av in v cc or gnd
www.fairchildsemi.com 4 74AC125 74act125 dc electrical characteristics for act note 6: all outputs loaded; thresholds on input associated with output under test. note 7: maximum test duration 2.0 ms, one output loaded at a time. note 8: may be measured per the jedec alternate method. symbol parameter v cc t a 25 q ct a 40 q c to 85 q c units conditions (v) typ guaranteed limits v ih minimum high level 4.5 1.5 2.0 2.0 v v out 0.1v input voltage 5.5 1.5 2.0 2.0 or v cc 0.1v v il maximum low level 4.5 1.5 0.8 0.8 v v out 0.1v input voltage 5.5 1.5 0.8 0.8 or v cc 0.1v v oh minimum high level 4.5 4.49 4.4 4.4 v i out 50 p a output voltage 5.5 5.49 5.4 5.4 v in v il or v ih 4.5 3.86 3.76 v i oh 24 ma 5.5 4.86 4.76 i oh 24 ma (note 6) v ol maximum low level 4.5 0.001 0.1 0.1 v i out 50 p a output voltage 5.5 0.001 0.1 0.1 v in v il or v ih 4.5 0.36 0.44 v i ol 24 ma 5.5 0.36 0.44 i ol 24 ma (note 6) i in maximum input 5.5 r 0.1 r 1.0 p av i v cc , gnd leakage current i oz maximum 3-state 5.5 r 0.5 r 5.0 p av i v il , v ih current v o v cc , gnd i cct maximum i cc /input 5.5 0.6 1.5 ma v i v cc 2.1v (note 8) i old minimum dynamic 5.5 75 ma v old 1.65v max i ohd output current (note 7) 5.5 75 ma v ohd 3.85v min i cc maximum quiescent 5.5 4.0 40.0 p av in v cc supply current or gnd
5 www.fairchildsemi.com 74AC125 74act125 ac electrical characteristics for ac note 9: voltage range 3.3 is 3.3v r 0.3v voltage range 5.0 is 5.0v r 0.5v ac electrical characteristics for act note 10: voltage range 5.0 is 5.0v r 0.5v capacitance v cc t a 25 q ct a 40 q c to 85 q c symbol parameter (v) c l 50 pf c l 50 pf units (note 9) min typ max min max t plh propagation delay 3.3 1.0 6.5 9.0 1.0 10.0 ns data to output 5.0 1.0 5.5 7.0 1.0 7.5 t phl propagation delay 3.3 1.0 6.5 9.0 1.0 10.0 ns data to output 5.0 1.0 5.0 7.0 1.0 7.5 t pzh output enable time 3.3 1.0 6.0 10.5 1.0 11.0 ns 5.01.05.07.01.08.0 t pzl output enable time 3.3 1.0 7.5 10.0 1.0 11.0 ns 5.01.05.58.01.08.5 t phz output disable time 3.3 1.0 7.5 10.0 1.0 10.5 ns 5.01.06.59.01.09.5 t plz output disable time 3.3 1.0 7.5 10.5 1.0 11.5 ns 5.01.06.59.01.09.5 v cc t a 25 q ct a 40 q c to 85 q c symbol parameter (v) c l 50 pf c l 50 pf units (note 10) min typ max min max t plh propagation delay 5.0 1.0 6.5 9.0 1.0 10.0 ns data to output t phl propagation delay 5.0 1.0 7.0 9.0 1.0 10.0 ns data to output t pzh output enable time 5.0 1.0 6.0 8.5 1.0 9.5 ns t pzl output enable time 5.0 1.0 7.0 9.5 1.0 10.5 ns t phz output disable time 5.0 1.0 7.0 9.5 1.0 10.5 ns t plz output disable time 5.0 1.0 7.5 10.0 1.0 10.5 ns symbol parameter ac/act units conditions typ c in input capacitance 4.5 pf v cc open c pd power dissipation capacitance 45.0 pf v cc 5.0v
www.fairchildsemi.com 6 74AC125 74act125 physical dimensions inches (millimeters) unless otherwise noted 14-lead small outline integrated circuit (soic), jedec ms-012, 0.150" narrow package number m14a
7 www.fairchildsemi.com 74AC125 74act125 physical dimensions inches (millimeters) unless otherwise noted (continued) pb-free 14-lead small outline package (sop), eiaj type ii, 5.3mm wide package number m14d
www.fairchildsemi.com 8 74AC125 74act125 physical dimensions inches (millimeters) unless otherwise noted (continued) 14-lead thin shrink small outline package (tssop), jedec mo-153, 4.4mm wide package number mtc14
9 www.fairchildsemi.com 74AC125 74act125 quad buffer with 3-state outputs physical dimensions inches (millimeters) unless otherwise noted (continued) 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300" wide package number n14a fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and fairchild reserves the right at any time without notice to change said circuitry and specifications. life support policy fairchild ? s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. a critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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