Dsg d  n q   &f&i page &p of &nArialdo z @ E?"@y +dgr {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qc \x\fs28\b CMOS 4510 IC\par \qc \x\fs24\b 4-bit UP/DOWN SYNCHRONOUS PRESETTABLE BCD COUNTER} }dg@ {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b LOAD INPUTS\par \qj \x\fs16 These are inputs to allow the counter to be set to any value when LD=1} }"F ppppp"F0FW0ppppp"Fp~Pppppp"Fppppp"Fг1  "Fp@PQ0pppppdg  {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs16\b DIRECTION\par \ql \x\fs16 0=Down, 1=Up} }"F00pppppdg`  {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b RESET\par \qj \x\fs16 Outputs reset to 0000 while RESET input =1} }"FТ0pppppdg`)'{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b LOAD\par \qj \x\fs16 Outputs = L1,L2,L4,L8 when LD=1. This allows the counter to start from any value.} }"F:K0pppppdg`'{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b ENABLE/CARRYIN\par \qj \x\fs16 When =1, the counter is frozen. Also acts a carry in from previous stage.} }" Pp$ I I I I I" @\ I I I I I" x I I I I I" 0 I I I I I" : I I I I IdY ``{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs16\b CARRYOUT\par \qj \x\fs16 Goes low prior to a carry. For example, when o/p=9 counting up and when o/p=0 counting down\x\fs20 .} }dYr @ {\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b BCD OUTPUTS\par \qj \x\fs16 BCD (Binary Coded Decimal) outputs count between 0 to 15.} }W#H@8@F@8@F@8@F@8@F@8hi"Eb{F    `{"W#"Eb{ކgF''g`{g"W# "Eb{^/F`@_`@_/`{/"W#"Eb{NKFN CN CK`{K"W# "Eb{>BF@`{@"W# "Eb{^HFH H ``{`"W#"Eb{~`{''FW#""Eb{b`{ C C`F`W#""$^/ $/@@/@@``W#"" $NKN`\N`\K $K"W# " $ކgxxg $g"W# " $ $  W#"" Eb{,"C`{,@_,@_ CF CW#"" $,,, $,"W#d5m9W{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16 1} }d 59qW{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16 2} }d 5q-W{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16 4} }d 5-mW{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16 8} }d g``{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\ql \x\fs16\b CLOCK\par \ql \x\fs16 Input for clock pulses} }d  b{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}}{\pard\qj \x\fs16\b\ul Priority of Controls\par \qj \x\fs16 Some controls overide others. Below is a list of controls in heirachical order. The ones at the top take priority over the ones following.\par \qj \x\fs16 \par \qj \x\fs16 RESET - over-rides all other inputs - sets output = 0000\par \qj \x\fs16 LOAD - over-rides counting and enable\par \qj \x\fs16 ENABLE - over-rides clock input\par \qj \x\fs16 CLOCK - lowest priority.} }@ @?"@