TOSHIBA TC74HC4020 14-Stage Binary Counter TC74HC4040 12-Stage Binary Counter The TC74HC4020A/TC74HC4040A are high speed CMOS BINARY COUNTER/DIVIDERs fabricated with silicon gate C*MOS technology. They achieves the high speed operation similar to equiva- lent LSTTL while maintaining the CMOS low power dissipation. The TC74HC4020 Is a 14-STAGE BINARY COUNTER, and the TC74HC4040A is a 12-STAGE BINARY COUNTER. Setting CLEAR to high resets the counter to low. A negative transition on the CLOCK input brings one increment into the counter. The TC74HC4020A provides 12 divided outputs: 1st state and stage 4 through stage 14. At Q14, as 1/16384 divided frequency will be output. The TC74HC4040A provides all divided output stages, and at Q12, a 1/4096 divided frequency will be output. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features * High Speed: fiysx = GBOMHZz(Typ.) at Veg = 5V * Low Power Dissipation: log = 4uA(Max.) at Ta = 25C High Noise Immunity: Vii = Vin = 28%Veo(Min.) * Output Drive Capability: 10 LSTTL Loads * Symmetrical Output Impedance: Ilp,! = lo, = 4MA(Min.) * Balanced Propagation Delays: toy = tou. e Wide Operating Voltage Range: V,,{opr) = 2V ~ 6V Pin and Function Compatible with 4020B/4040B TC74HC4020AP/AF/AFN TC74HC4040AP/AF/AFN 1 P 1 1 F FN TCT4HC4020A TC74HCA040A Qiz 4 18 Veo ai2 4 16 Veo an 2 16 an a6 2 5% at au 3 14 Q10 as 3 14 ato ae 13,08 Q7 4 3 a8 as 6 12 a8 oa & 12 a9 qQ7 6 11 CLEAR a3 6 1 CLEAT as 7 10 CLOCK a2 7 10 CLOG GND & $ ai GND & ai (TOP VIEW) Pin Assignment Truth Table CLOCK | CLEAR | Output State x H All Outputs = L L No change r 9 Advance to Next L L State X: Don't Care TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC. 645TC74HC4020AP/AF/AFN TC74HC4040AP/AF/AFN C?MOS Logic TC74HC/HCT Series TC74HC4020A TC74HCARAOA RCTA 14 ACTR 12 at al a4 a2 CLR Qs CLR a3 at a4 Q7 as _ as as cK as cK 07 aio as a as a12 ato au oi a a12 IEC Logic Symbol 646 TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.TC74HC4020AP/AF/AFN C2MOS Logic TC74HC/HCT Series TC74HC4040AP/AF/AFN TC74HC4020A 01 o4 Os a6 07 5 6 Us 1) Ye | Ue} Ye] CLOCK ~{>@[$ Fx, @ cK, 6 cK, O Ck, o " I T T CLEAR p- <> aa I T A A A 3 2 1 6 14 12 13 ai an o12 au aro a9 as Logic Diagram TC4HCAOAGA a1 a2 a3 a4 Os as 9 ? a an we nD ; L 0 U 0 U L o L 0 Uy 0 ane a ox oF ioe Fl e on on ry CLOCK ~ 0 my 0 ry a CK a 0 rs 0-4 clear foo >} T 1 t I re Rex 3 Mex 6 8ext to Rext 5 Rex r Rex D D D r ' A pL [bE ee $1 Kh 16 14 12 13 4 a2 ai aw a9 as Q7 Timing Chart TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC. 647TC74HC4020AP/AF/AFN TC74HC4040AP/AF/AFN C?MOS Logic TC74HC/HCT Series Absolute Maximum Ratings Parameter Symbol Value Unit Supply Voltage Range Voc -0.5-7 V DC Input Voltage Von 0.5 -Voe +05 v DC Output Voltage Vout 05 ~Voo +05 V Input Diode Current li #20 mA Oulput Diode Current lox 20 mA DC Output Current lout 425 mA DC Vo/Ground Current loc +50 mA Power Dissipation Pp 00(DIP)* mW Storage Temperature Totg -65 ~ 150 c Lead Temperature 10sec T, 300 C *S00mW in the range of Ta = -40C ~ 65C. From Ta = 65C to 85C a derating factor of -1O0mWAC shall be applied until 300mW. Recommended Operating Conditions Parameter Symbol Value Unit Supply Voltage Veco 2-6 V Input Voltage Vin 0~Voo V Output Voltage Vout 0~Voo V Operating Temperature Topr -40 ~ 85 C 0 ~ 1000(Vgg = 2.0V) input Rise and Fall Time tty 0 ~500(Vo = 4.5V) ns 0 ~ 400(Vgg = 6.0) DC Electrical Characteristics Ta = 25C Ta = -40 ~ 85C ; Parameter Symbol Test Condition Unit Vec | Min. Tp. Max. Min. Max. . 2.0 15 - - 15 - High-Level Via - 45 | 3.45 - - 345 - v input Vollage 60 42 _ _ 42 _ Low-Level 2.0 ~ - 05 - 05 Input Voltage Vu ~ e - 7 - % V 2.0 1.9 2.0 - 19 - lon = -20 45 44 45 - 44 - High-Level v Vin= ons 2 6.0 59 6.0 - 59 - V OH Output Voltage Vin oF Vit lon =-4 mA 45 4.18 4.31 - 4.13 - lon=-5.2mA | 6.0 5.68 5.80 - 5.63 - 2.0 - 0.0 0.4 - 0.1 lo, = 20uA 45 - 0.0 0.1 - 04 Low-Level Vy Vin= . 60 - 0.0 O41 - 0.1 V OL Output Voltage Vin OF Vip. lo = 4mA 45 - 0.17 0.26 - 0.33 Io. = 5.2mA 6.0 - 0.18 0.26 - 0.33 Input Leakage Current ln Vin = Voc or GND 6.0 - - 4.1 - +10 WA Quiescent Supply Current loc Vin = Voc or GND 6.0 - - 40 - 40.0 648 TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.TC74HC4020AP/AF/AFN c?Mos Logic TC74HC/HCT Series TC74HC4040AP/AF/AFN Timing Requirements (Input t, = t, = 6ns) Ta=25C Ta = -40~85C Parameter Symbol Test Condition Unit Voo Typ. Limit Limit Minimum Pulse Width ter _ a i (CLOCK) wer 60 13 16 Minimum Pulse Width 20 % % CLEAR) we - 45 15 19 ns ( 6.0 13 16 2.0 25 30 Minimum Removal Time tem - 45 5 6 6.0 5 5 20 6 5 Clock Frequency f - 45 30 24 MHz 6.0 35 28 AC Electrical Characteristics (C, = 15pF, Vo, = 5V, Ta = 25C) Parameter Symbol Test Condition Min. Typ. Max. Unit Output Transition Time fu - - 4 8 trae Propagation Delay Time tou - - 16 24 (CLOCR-0,1) tou ns Propagation Delay Time boon _ _ 5 14 (Qn-Qn+1) tout Propagation Delay Time toy (CLEAR) tor - - 4 a4 Maximum Clock Frequency tax - 33 3 - MHz AC Electrical Characteristics (C, = 50pF, Input t, = t, = 6ns) Ta = 25C Ta = -40 ~ 85C Parameter Symbol Test Condition Unit Voc Min Typ. Max. Min. Max. t 2.0 - 30 15 - 95 Output Transition Time ia - 45 - 8 15 - 19 THE 6.0 - 7 13 - 16 Propagation Delay Time lou _ ie - n e - (CLOCK-0,1) toe 60 - 17 25 - 31 ns Propagation Delay Time lou _ o - te - 3 {Qn On 1) toe 60 - 4 B - 16 Propagation Delay Time toy 20 - 56 140 - id B - 45 - v7 28 - 35 (CLEAR) ToL 60 - 14 24 - 30 2.0 6 17 - 5 - Maximum Clock Frequency fax - 45 30 66 - 24 - MHz 6.0 35 78 - 28 ~ Input Capacitance Cwy - - 5 10 - 10 cies , TC74HC4020A - 27 - - - oF Power Dissipation Capacitance Cop(t} TC74HC4040A - 37 - ~ ~ Note (1) Cop ts defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: lectopy = Ceo * Veo * fin + loc TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC. 649C2MOS Logic TC74HC/HCT Series Notes 650 TOSHIBA AMERICA ELECTRONIC COMPONENTS, INC.