original creation date: 06/28/96 last update date: 03/18/02 last major revision date: 03/26/97 mn54ac245-x rev 2b1 microcircuit data sheet octal bidirectional transceiver with tri- state inputs/outputs general description the ac245 contains eight non-inverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. current sinking capability is 24 ma at the a and b ports. the transmit/receiver (t/r) input determines the direction of data flow through the bidirectional transceiver. transmit (active high) enables data from a ports to b ports: receive (active low) enables data from b ports to a ports. the output enable input when high , disables both a and b ports by placing them in a high z condition. ns part numbers 54ac245dmqb 54ac245fmqb 54ac245lmqb 54AC245WG-QML industry part number 54ac245 prime die z245 controlling document see features section processing mil-std-883, method 5004 quality conformance inspection mil-std-883, method 5005 subgrp description temp ( c) o 1 static tests at +25 2 static tests at +125 3 static tests at -55 4 dynamic tests at +25 5 dynamic tests at +125 6 dynamic tests at -55 7 functional tests at +25 8a functional tests at +125 8b functional tests at -55 9 switching tests at +25 10 switching tests at +125 11 switching tests at -55 1
microcircuit data sheet mn54ac245-x rev 2b1 features - icc and ioz reduced by 50% - non-inverting buffers - bidirectional data path - a and b outputs source/sink 24 ma standard military drawing (smd) 54ac245dmqb 5962-8775801ra 54ac245fmqb 5962-8775801sa 54ac245lmqb 5962-87758012a 54AC245WG-QML 5962-8775801za 2
microcircuit data sheet mn54ac245-x rev 2b1 (absolute maximum ratings) (note 1) supply voltage (vcc) -0.5v to +7.0v dc input diode current (iik) -20 ma vi = -0.5v +20 ma vi = vcc +0.5v dc input voltage (vi) -0.5v to vcc +0.5v dc output diode current (iok) -20 ma vo = -0.5v +20 ma vo = vcc + 0.5v dc output voltage (vo) -0.5v to vcc +0.5v dc output source or sink current (io) +50 ma dc vcc or ground current per output pin (icc or ignd) +50 ma junction temperature(tj) 175 c storage temperature (tstg) -65 c to +150 c note 1: absolute maximum ratings are those values beyond which damage to the device may occur. the databook specification should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. national does not recommend operation of fact tm circuits outside databook specifications. recommended operating conditions supply voltage (vcc) 2.0v to 6.0v input voltage (vi) 0v to vcc output voltage (vo) 0v to vcc operating temperature (ta) -55 c to +125 c minimum input edge rate (delta v/ delta t) ac devices vin from 30% to 70% of vcc 125 mv/ns vcc @ 3.0v, 4.5v, 5.5v 3
mn54ac245-x rev 2b1 microcircuit data sheet electrical characteristics dc parameter (the following conditions apply to all the following parameters, unless otherwise specified.) dc: vcc 3.0v to 5.5v, temperature range: -55c to 125c. note: -55c temperature, subgroup 3 is guaranteed but not tested. symbol parameter conditions notes pin- name min max unit sub- groups iih high level input current vcc=5.5v, vm=5.5v, vinl=0.0v 1, 2 input 0.1 ua 1 1, 2 input 1.0 ua 2, 3 iil low level input current vcc=5.5v, vm=0.0v, vinl=0.0v 1, 2 input -0.1 ua 1 1, 2 input -1.0 ua 2, 3 vol low level output voltage vcc=3.0v, vih=2.1v, vil=0.9v, iol=12.0ma 1, 2 output .36 v 1 1, 2 output .50 v 2, 3 vcc=3.0v, vih=2.1v, vil=0.9v, iol=50.0ua 1, 2 output .10 v 1, 2, 3 vcc=4.5v, vih=3.15v, vil=1.35v, iol=50.0ua 1, 2 output .10 v 1, 2, 3 vcc=5.5v, vih=3.85v, vil=1.65v, iol=24.0ma 1, 2 output .36 v 1 1, 2 output .50 v 2, 3 vcc=5.5v, vih=3.85v, vil=1.65v, iol=50.0ua 1, 2 output .10 v 1, 2, 3 vcc=4.5v, vih=3.15v, vil=1.35v, iol=24.0ma 1, 2 output .36 v 1 1, 2 output .50 v 2, 3 viol dynamic output current low vcc=5.5v, vih=3.85v, vil=1.65v, iol=50.0ma 1, 2, 5 output 1.65 v 1, 2, 3 voh high level output voltage vcc=3.0v, vih=2.1v, vil=0.9v, ioh=-50.0ua 1, 2 output 2.90 v 1, 2, 3 vcc=3.0v, vih=2.1v, vil=0.9v, ioh=-12.0ma 1, 2 output 2.56 v 1 1, 2 output 2.40 v 2, 3 vcc=5.5v, vih=3.85v, vil=1.65v, ioh=-24.0ma 1, 2 output 4.86 v 1 1, 2 output 4.70 v 2, 3 vcc=4.5v, vih=3.15v, vil=1.35v, ioh=-24.0ma 1, 2 output 3.86 v 1 1, 2 output 3.70 v 2, 3 vcc=4.5v, vih=3.15v, vil=1.35v, ioh=-50.0ua 1, 2 output 4.40 v 1, 2, 3 vcc=5.5v, vih=3.85v, vil=1.65v, ioh=-50.0ua 1, 2 output 5.40 v 1, 2, 3 vioh dynamic output current high vcc=5.5v, vih=3.85v, vil=1.65v, ioh=-50.0ma 1, 2, 5 output 3.85 v 1, 2, 3 4
mn54ac245-x rev 2b1 microcircuit data sheet electrical characteristics dc parameter(continued) (the following conditions apply to all the following parameters, unless otherwise specified.) dc: vcc 3.0v to 5.5v, temperature range: -55c to 125c. note: -55c temperature, subgroup 3 is guaranteed but not tested. symbol parameter conditions notes pin- name min max unit sub- groups iozh maximum tri-state leakage current high vcc=3.0v, vm=3.0v, vinh=0.0v, vinl=0.0v, vih=2.1v 1, 2 output .3 ua 1 1, 2 output 5.5 ua 2, 3 vcc=4.5v, vm=4.5v, vinh=4.5v, vinl=0.0v, vih=3.15v 1, 2 output .3 ua 1 1, 2 output 5.5 ua 2, 3 vcc=5.5v, vm=5.5v, vinh=5.5v, vinl=0.0v, vih=3.85v 1, 2 output .3 ua 1 1, 2 output 5.5 ua 2, 3 iozl maximum tri-state leakage current low vcc=3.0v, vm=0.0v, vinh=3.0v, vinl=0.0v vih=2.1v 1, 2 output -.3 ua 1 1, 2 output -5.5 ua 2, 3 vcc=4.5v, vm=0.0v, vinh=4.5v, vinl=0.0v, vih=3.15v 1, 2 output -.3 ua 1 1, 2 output -5.5 ua 2, 3 vcc=5.5v, vm=0.0v, vinh=5.5v, vinl=0.0v, vih=3.85v 1, 2 output -.3 ua 1 1, 2 output -5.5 ua 2, 3 icch supply current vcc=5.5v, vinh=5.5v, vinl=0.0v 1, 2 vcc 4 ua 1 1, 2 vcc 80 ua 2, 3 iccl supply current vcc=5.5v, vinh=5.5v, vinl=0.0v 1, 2 vcc 4 ua 1 1, 2 vcc 80 ua 2, 3 iccz supply current vcc=5.5v, vinh=5.5v, vinl=0.0v 1, 2 vcc 4 ua 1 1, 2 vcc 80 ua 2, 3 ac parameter (the following conditions apply to all the following parameters, unless otherwise specified.) ac: cl=50pf, rl=500 ohms, trise=3.0ns, tfall=3.0ns, temp range: -55c to 125c. note: -55c temperature, subgroup 11 is guaranteed but not tested. tplh(1) propagation delay vcc=4.5v 3, 4, 6 a to b or b to a 1.5 6.5 ns 9 3, 4, 6 a to b or b to a 1.5 8.5 ns 10, 11 tphl(1) propagation delay vcc=4.5v 3, 4, 6 a to b or b to a 1.5 6.0 ns 9 3, 4, 6 a to b or b to a 1.5 7.5 ns 10, 11 5
mn54ac245-x rev 2b1 microcircuit data sheet electrical characteristics ac parameter(continued) (the following conditions apply to all the following parameters, unless otherwise specified.) ac: cl=50pf, rl=500 ohms, trise=3.0ns, tfall=3.0ns, temp range: -55c to 125c. note: -55c temperature, subgroup 11 is guaranteed but not tested. symbol parameter conditions notes pin- name min max unit sub- groups tpzl(1) output enable time vcc=4.5v 3, 4, 6 oe to an or bn 1.5 9.0 ns 9 3, 4, 6 oe to an or bn 1.5 10.5 ns 10, 11 tpzh(1) output enable time vcc=4.5v 3, 4, 6 oe to an or bn 1.5 8.5 ns 9 3, 4, 6 oe to an or bn 1.5 10.0 ns 10, 11 tphz(1) output disable time vcc=4.5v 3, 4, 6 oe to an or bn 1.5 9.0 ns 9 3, 4, 6 oe to an or bn 1.5 10.5 ns 10, 11 tplz(1) output disable time vcc=4.5v 3, 4, 6 oe to an or bn 1.5 9.0 ns 9 3, 4, 6 oe to an or bn 1.5 10.5 ns 10, 11 tplh(2) propagation delay vcc=3.0v 3, 4 a to b or b to a 1.0 8.5 ns 9 3, 4 a to b or b to a 1.0 11.5 ns 10, 11 tphl(2) propagation delay vcc=3.0v 3, 4 a to b or b to a 1.0 8.5 ns 9 3, 4 a to b or b to a 1.0 10.0 ns 10, 11 tpzl(2) output enable time vcc=3.0v 3, 4 oe to an or bn 1.0 12.0 ns 9 3, 4 oe to an or bn 1.0 14.5 ns 10, 11 6
mn54ac245-x rev 2b1 microcircuit data sheet electrical characteristics ac parameter(continued) (the following conditions apply to all the following parameters, unless otherwise specified.) ac: cl=50pf, rl=500 ohms, trise=3.0ns, tfall=3.0ns, temp range: -55c to 125c. note: -55c temperature, subgroup 11 is guaranteed but not tested. symbol parameter conditions notes pin- name min max unit sub- groups tpzh(2) output enable time vcc=3.0v 3, 4 oe to an or bn 1.0 11.5 ns 9 3, 4 oe to an or bn 1.0 13.5 ns 10, 11 tphz(2) output disable time vcc=3.0v 3, 4 oe to an or bn 1.0 12.0 ns 9 3, 4 oe to an or bn 1.0 13.5 ns 10, 11 tplz(2) output disable time vcc=3.0v 3, 4 oe to an or bn 1.0 11.5 ns 9 3, 4 oe to an or bn 1.0 14.0 ns 10, 11 note 1: screen tested 100% on each device at +25c & +125c temperature, subgroups 1, 2, 7, & 8. note 2: sample tested (method 5005, table 1) on each mfg. lot at +25c & +125c temperature, subgroups a1, 2, 7, & 8. note 3: screen tested 100% on each device at +25c temperature only, subgroup a9. note 4: sample tested (method 5005, table 1) on each mfg. lot at +25c & +125c temperature, subgroups a9 & 10. note 5: transmission line driving test, guardband limits set for +25c, 2 msec duration max. note 6: +25c & +125c min limits guaranteed for 5.5v by guardbanding 4.5v min. limits. 7
microcircuit data sheet mn54ac245-x rev 2b1 graphics and diagrams graphics# description wg20arb cerpack, 20 lead gull wing (p/p dwg) see attached graphics following this page. 8
microcircuit data sheet mn54ac245-x rev 2b1 revision history rev ecn # rel date originator changes 2b1 m0003970 03/18/02 rose malone update mds: mn54ac245-x, rev. 2a0 to mn54ac245-x, rev. 2b1. added smd numbers and wg pkg to main table and features section, also added wg mkt dwg to graphics section. 9
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