? 2004 fairchild semiconductor corporation ds005889 www.fairchildsemi.com october 1987 revised january 2004 MM74C93 4-bit binary counter MM74C93 4-bit binary counter general description the MM74C93 binary counter and complementary mos (cmos) integrated circuits constructed with n- and p- channel enhancement mode transistors. the 4-bit binary counter can be reset to zero by applying high logic level on inputs r 01 and r 02 , and a separate flip-flop on the a-bit enables the user to operate it as a divide-by-2, -8, or -16 divider. counting occurs on the negative going edge of the input pulse. all inputs are protected against static discharge damage. features wide supply voltage range: 3v to 15v guaranteed noise margin: 1v high noise immunity: 0.45 v cc (typ.) low power compatibility: fan out of 2 ttl driving 74l the MM74C93 follows the mm74l93 pinout ordering code: connection diagram top view logic diagram truth table 4-bit binary counter binary count sequence output q a is connected to input b for binary count sequence. h = high level l = low level x = irrelevant order number package number package description MM74C93n n14a 14-lead plastic dual-in-line package (pdip), jedec ms-001, 0.300" wide count output q d q c q b q a 0 llll 1lllh 2llhl 3llhh 4lhll 5lhlh 6lhhl 7lhhh 8 hlll 9hllh 10 hlhl 11 h l h h 12 h h l l 13 h h l h 14 hhhl 15 hhhh
www.fairchildsemi.com 2 MM74C93 function tables reset/count function table reset/count function table reset inputs output r 01 r 02 r 91 r 92 q d q c q b q a hhlxllll hhxlllll xxhhhl lh x l x l count lxlx count l x x l count x l l x count reset output inputs r 01 r 02 q d q c q b q a hhllll lx count xl count
3 www.fairchildsemi.com MM74C93 absolute maximum ratings (note 1) note 1: ?absolute maximum ratings? are those values beyond which the safety of the device cannot be guaranteed. except for ?operating tempera- ture range?, they are not meant to imply that the devices should be oper- ated at these limits. the table of ?electrical characteristics? provides conditions for actual device operation. dc electrical characteristics min/max limits apply across temperature range unless otherwise noted voltage at any pin (note 1) ? 0.3v to v cc + 0.3v operating temperature range (t a ) ? 55 c to + 125 c power dissipation (p d ) dual-in-line 700 mw small outline 500 mw operating v cc range 3v to 15v absolute maximum v cc 18v storage temperature range (t s ) ? 65 c to + 150 c lead temperature (t l ) (soldering, 10 seconds) 260 c symbol parameter conditions min typ max units cmos to cmos v in(1) logical ? 1 ? input voltage v cc = 5v 3.5 v v cc = 10v 8.0 v in(0) logical ? 0 ? input voltage v cc = 5v 1.5 v v cc = 10v 2.0 v out(1) logical ? 1 ? output voltage v cc = 5v, i o = ? 10 a4.5 v v cc = 10v, i o = ? 10 a9.0 v out(0) logical ? 0 ? output voltage v cc = 5v, i o = + 10 a0.5 v v cc = 10v, i o = + 10 a1.0 i in(1) logical ? 1 ? input current v cc = 15v, v in = 15v 0.005 1.0 a i in(0) logical ? 0 ? input current v cc = 15v, v in = 0v ? 1.0 ? 0.005 a i cc supply current v cc = 15v 0.05 300 a cmos/lpttl interface v in(1) logical ? 1 ? input voltage mm74c90, MM74C93 v cc = 4.75v v cc ? 1.5 v v in(0) logical ? 0 ? input voltage mm74c90, MM74C93 v cc = 4.75v 0.8 v v out(1) logical ? 1 ? output voltage mm74c90, MM74C93 v cc = 4.75v, i o = ? 360 a2.4 v v out(0) logical ? 0 ? output voltage mm74c90, MM74C93 v cc = 4.75v, i o = ? 360 a0.4v output drive (see family characteristics data sheet) (short circuit current) i source output source current v cc = 5v, v out = 0v ? 1.75 ? 3.3 ma (p-channel) t a = 25 c i source output source current v cc = 10v, v out = 0v ? 8.0 ? 15 ma (p-channel) t a = 25 c i sink output sink current v cc = 5v, v out = v cc 1.75 3.6 ma (n-channel) t a = 25 c i sink output sink current v cc = 10v, v out = v cc 8.0 16 ma (n-channel) t a = 25 c
www.fairchildsemi.com 4 MM74C93 ac electrical characteristics (note 2) t a = 25 c, c l = 50 pf, unless otherwise specified note 2: ac parameters are guaranteed by dc correlated testing. note 3: capacitance is guaranteed by periodic testing. note 4: c pd determines the no load ac power consumption of any cmos device. for complete explanation see family characteristics applicatio n note ? an-90. symbol parameter conditions min typ max units t pd0 , t pd1 propagation delay time v cc = 5v 200 400 ns from a in to q a v cc = 10 80 150 t pd0 , t pd1 propagation delay time from v cc = 5v 450 850 ns a in to q b (MM74C93) v cc = 10v 160 300 t pd0 , t pd1 propagation delay time from v cc = 5v 450 800 ns a in to q b (mm74c90) v cc = 10v 160 300 t pd0 , t pd1 propagation delay time v cc = 5v 500 1050 ns from a in to q c (MM74C93) v cc = 10 200 400 t pd0 , t pd1 propagation delay time from v cc = 5v 500 1000 ns a in to q c (MM74C93) v cc = 10v 200 400 t pd0 , t pd1 propagation delay time from v cc = 5v 600 1200 ns a in to q d (MM74C93) v cc = 10v 250 500 t pd0 , t pd1 propagation delay time from v cc = 5v 450 800 ns a in to q d (mm74c90) v cc = 10v 160 300 t pd0 , t pd1 propagation delay time from v cc = 5v 150 300 ns r 01 or r 02 to q a , q b , q c or q d v cc = 10v 75 150 (MM74C93) t pd0 , t pd1 propagation delay time from v cc = 5v 200 400 ns r 01 or r 02 to q a , q b , q c or q d v cc = 10v 75 150 (mm74c90) t pd0 , t pd1 propagation delay time from v cc = 5v 250 500 ns r 91 or r 92 to q a or q d v cc = 10v 100 200 (mm74c90) t pw min. r 01 or r 02 pulse width v cc = 5v 600 250 ns (MM74C93) v cc = 10v 30 125 t pw min. r 01 or r 02 pulse width v cc = 5v 600 250 ns (mm74c90) v cc = 10v 300 125 t pw min. r 91 or r 92 pulse width v cc = 5v 500 200 ns (mm74c90) v cc = 10v 250 100 t r , t f maximum clock rise v cc = 10v 15 s and fall time v cc = 10v 5 t w minimum clock pulse width v cc = 5v 250 100 ns v cc = 10v 100 50 f max maximum clock frequency v cc = 5v 2 mhz v cc = 10v 5 c in input capacitance any input (note 3) 5 pf c pd power dissipation capacitance per package (note 4) 45 pf
5 www.fairchildsemi.com MM74C93 ac test circuits clock rise and fall time t r = t f = 20 ns switching time waveforms mm74c90 and MM74C93 are solid line waveforms. dashed line waveforms are for mm74c90 only.
www.fairchildsemi.com 6 MM74C93 4-bit binary counter physical dimensions inches (millimeters) unless otherwise noted 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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