器件名称:
MC74HC4020ADT
功能描述:
14-Stage Binary Ripple Counter
文件大小:
194.32KB 共8页
简 介:
MOTOROLA SEMICONDUCTOR TECHNICAL DATA 14-Stage Binary Ripple Counter High–Performance Silicon–Gate CMOS The MC74C4020A is identical in pinout to the standard CMOS MC14020B. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device consists of 14 master–slave flip–flops with 12 stages brought out to pins. The output of each flip–flop feeds the next and the frequency at each output is half of that of the preceding one. Reset is asynchronous and active–high. State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and may have to be gated with the Clock of the HC4020A for some designs. Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2 to 6 V Low Input Current: 1 A High Noise Immunity Characteristic of CMOS Devices In Compliance With JEDEC Standard No. 7A Requirements Chip Complexity: 398 FETs or 99.5 Equivalent Gates LOGIC DIAGRAM 9 7 5 4 Clock 10 6 13 12 14 15 1 2 3 Reset 11 Q1 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 16 MC74HC4020A N SUFFIX PLASTIC PACKAGE CASE 648–08 1 16 1 D SUFFIX SOIC PACKAGE CASE 751B–05 16 1 DT SUFFIX TSSOP PACKAGE CASE 948F–01 ORDERING INFORMATION MC74HCXXXXAN MC74HCXXXXAD MC74HCXXXXADT Plastic SOIC TSSOP FUNCTION TABLE Clock Reset L L H Output State No Charge Advance to Next State All Outputs Are……
