TRUTH TABLE
EwMode VCC Current 1/0 Pin
HxNot Selected ISB1, ISB2 High-Z
LHRead Icc Dout
L L Write Icc Din
This device contains circuitry to protect the
inputs against damage due to high static
voltages or electric fields; however, it is ad-
vised that normal precautions be taken to
avoid application of any voltage higher than
maximum rated voltages to this high-
impedance circuit.
ABSOLUTE MAXIMUM RATINGS (See Note)
Rating Svmbol Value Unit
Power Supply Voltage Vcc –0.5 to +7.0 v,*!.
‘*{,3,
Voltage Relative to VSS for Any es:<.\.*:<2~,
Vin, Vout -0.5 to Vcc +0.5 v,.+.,>“*rit. ~
Pin Except VCC ,\,:,$.-,,.:.>~,:.
*, ~:.;i
Output Current (per 1/0) f“”[,l::i.,y~:\~.l.,,..,?
lout *20 mA *,...?.}’,~.’~..
.... f..,
\*,,,;,~l~‘v,,
Power Dissipation (TA =25°C) pD 1!0 w.:,\. .<.
.,y ,::..!4>:,:,
Temperature Under Bias ‘$:,,+$+~~,?
Tbias –55to +125 Qc .St,,{)+.l,\:k\:,?~.,.
‘s,. .
...*.:,,+..
Operating Temperature ...
TA –55to +125 Oc .,<{,J,,>$.
f.,.~..,,~,.~
!$)$ ..i>
Storage Temperature Tstq –65to +150 OC .~+,,
5<$!+..,:,,
..?.!>tt~
NOTE: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are ‘?,,,,”,,,,:~
~-.~‘.?,.t,,t,J,*,
,$+ ......
exceeded. Functional operation should ba restricted to RECOMMENDED ..?:~.,<:~’
~t*~
~i$ ‘“~~].*.V,.
OPERATING CONDITIONS. Exposure to higher than recommended voltages for .....
,~>>?<,,,>:t:y..
.*X ..:,.
extended periods of time couId affect device reliability. ‘i?,
,,%$!t>.x
.,k’ .,;>
~~.+’>,,,,$J,“>s~i.:j,.
‘~+,
~\><!.\.y<..,*
yq \,j: -
.’, 13$:1J,,,>~~::.
DC OPERATING CONDITIONS AND CH*C~ERISTICS
(VCC =5V+10%, TA =– 55 to +125”C, U@less ‘~herwise Noted)
\,.:..:~,\\,~>
! ..
RECOMMENDED OPERATING CONDITIONS ,1*.
,:7:<?V<:$,
~i ~
Parameter \
,,*:>,>&:‘$ Symbol Min Max Unit Notes
Supply Voltage (Operating Voltage Range) .,., .....~,,:.
‘.,,k,. Vcc 4.5
~.s 5.5 v
Input High Voltage ~t,s\~~
,L. VIH 2.2 Vcc +0.3 v1
Input Low Voltage j>$:+,$ VIL –0.3 0.8 v
\,.,$
,s.. 1, 2
..... ..’,
DC CHARACTERISTICS :~*.+t.a&y
;+>\\:, .
~;$$.,
.,$*’~:~
~~\),‘~~,~,j,~..,.
Parameter, ,l~y.~~~~ Svmbol Min Max Unit Notes
Input Leakage Current (All Inputs, ~n =O;~~~&) IIL —t2.0 PA
Output Leakage Current (~ =VIH or ~~”~$~~~ Vout =Oto VCC) IOZL —*2.0 WA 3
AC SupplV Current (lout =OmA,,~$&~,,~$ Min, Duty =10070) iCCA —90 mA 3
,, ,>
TTL Standby Current (~ =VI~j,,$:: ,~~ isBl —20 mA
1SB2 —5.0 mA
VOL —0.4 v
Output High Volta~~,F~@~ –4.0 mA) VOH 2.4 —v
““>%‘“:
i:\,,Y:
CAPACITAN~,,(&\~~* MHz, TA =25°C, sampled at initial device qualification and major redesigns rather than 100Y~ tested)
.*X...’.,, ..>~.~,,
~~~.
i$, ‘.!,., Characteristic SVmbol Tvp Max Unit
v
Input ,Q~~~~Mice All Inputs Except ~Cin 3
‘,${, ~5pF
.,,>?,
.,:...> E5 7
~..?,,.
l/O*pacitance Cl/o 5 7 pF
NOTES’:
1. Address rise and fall times while the chip is selected are Wns maximum.
2. VI L(min) =–0.3 Vdc; VIL(min) =–3.0 Vac (pulse widths20 ns).
3. input levels less than -0.3 Vor greater than VCC +0.3 Vwill cause 1/0 and power supply currents to exceed maximum rating.
MOTOROLA
26168