Nexperia B.V. Datasheets for Logic Counters

Logic counters are integrated circuits used for counting events in computers and other digital systems.
Logic Counters: Learn more

Product Name	Notes
74AHC595BQ,115. 74HC160D,652 74HC160D,653 74HC160DB,112 74HC160DB,118 74HC160PW,112 74HC160PW,118 74HC161DB,112 74HC161DB,118 74HC163D,652 74HC163D,653 74HC163D-Q100J 74HC163DB,112 74HC163DB,118 74HC163PW,112 74HC163PW,118 74HC163PW-Q100J 74HC165BQ 115. 74HC165PW 112. 74HC191D 74HC191DB,112 74HC191DB,118 74HC191N 74HC193D 74HC193DB,112 74HC193DB,118 74HC193DB-Q100J 74HC193DB112 74HC390D 74HC390DB,112 74HC390DB,118 74HC393D 74HC393D/S400,118 74HC393DB,112 74HC393DB,118 74HC40103D 74HC40103DB,112 74HC40103DB,118 74HC4017D 74HC4017D,652. 74HC4017D/S400,118 74HC4017DB,112 74HC4017DB,118 74HC4020BQ-Q100115 74HC4020D-Q100118 74HC4020DB,112 74HC4020DB,118 74HC4024D 74HC4024PW,112 74HC4024PW,118 74HC4024PW-Q100J 74HC4040BQ115 74HC4040D 74HC4040DB,112 74HC4040DB,112-NEX 74HC4040DB,118 74HC4040DB-Q100J 74HC4040PW,118. 74HC4060BQ 74HC4060BQ115 74HC4060D 74HC4060D/S400,118 74HC4060DB,112 74HC4060DB,112-NEX 74HC4060DB,118 74HC4060DB-Q100J 74HC4520D 74HC4520D/S400,118 74HC4520DB,112 74HC4520DB,118 74HC4520PW/S400 74HC4520PW/S400J 74HC590PW118 74HC6323AD,112 74HC6323AD,118 74HCT163D,652 74HCT163D,653 74HCT163D-Q100J 74HCT163DB,112 74HCT163DB,118 74HCT163PW,112 74HCT163PW,118 74HCT163PW-Q100J 74HCT193D 74HCT193DB,112 74HCT193DB,118 74HCT193DB-Q100J 74HCT390D,652. 74HCT390D653 74HCT390DB,112 74HCT390DB,112-NEX 74HCT390DB,118 74HCT393D 74HCT393DB,112 74HCT393DB,118 74HCT4020D 74HCT4020DB,112 74HCT4020DB,118 74HCT4040DB,112 74HCT4040DB,118 74HCT4040DB-Q100J 74HCT4040PW118 74HCT4060D 74HCT4060DB,112 74HCT4060DB,118 74HCT4060DB-Q100J 74HCT4520DB,112 74HCT4520DB,118 74HCT595D 112. 74HCT6323AD,112 74HCT6323AD,118 74HCT6323AD/C4J 74LV393DB,112 74LV393DB,118 74LV393PW/C5J 74LV393PW/S400,118 74LV4060DB,112 74LV4060DB,118 74LVC161DB,112 74LVC161DB,118 74LVC163DB,112 74LVC163DB,118 74LVC169PW,118 74LVC169PW118 74LVC595ABQ 115. HEC4020BT,118 HEC4040BT-Q100J HEF4017BP HEF4017BT 653. HEF4020BP HEF4040BP HEF4040BT HEF4040BT/S400,118 HEF4060BT HEF4060BT,652. HEF4060BT,653. HEF4060BT-Q100,118 HEF4518BT652 HEF4520BT HEF4521BP
8-stage divider and oscillator -- 74AHC1G4208GWH	74AHC1G4208 is a 8-stage divider and oscillator. It consists of a chain of 8 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4208 counts...
8-stage divider and oscillator -- 74AHC1G4208GW-Q10H	74AHC1G4208-Q100 is a 8-stage divider and oscillator. It consists of a chain of 8 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4208-Q100 counts...
10-stage divider and oscillator -- 74AHC1G4210GWH	74AHC1G4210 is a 10-stage divider and oscillator. It consists of a chain of 10 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4210 counts...
10-stage divider and oscillator -- 74AHC1G4210GW-Q10H	74AHC1G4210-Q100 is a 10-stage divider and oscillator. It consists of a chain of 10 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4210-Q100 counts...
12-stage divider and oscillator -- 74AHC1G4212GWH	74AHC1G4212 is a 12-stage divider and oscillator. It consists of a chain of 12 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4212 counts...
12-stage divider and oscillator -- 74AHC1G4212GW-Q10H	74AHC1G4212-Q100 is a 12-stage divider and oscillator. It consists of a chain of 12 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4212-Q100 counts...
14-stage divider and oscillator -- 74AHC1G4214GWH	74AHC1G4214 is a 14-stage divider and oscillator. It consists of a chain of 14 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4214 counts...
14-stage divider and oscillator -- 74AHC1G4214GW-Q10H	74AHC1G4214-Q100 is a 14-stage divider and oscillator. It consists of a chain of 14 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4214-Q100 counts...
15-stage divider and oscillator -- 74AHC1G4215GWH	74AHC1G4215 is a 15-stage divider and oscillator. It consists of a chain of 15 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4215 counts...
15-stage divider and oscillator -- 74AHC1G4215GW-Q10H	74AHC1G4215-Q100 is a 15-stage divider and oscillator. It consists of a chain of 15 flip-flops. Each flip-flop divides the frequency of the previous flip-flop by two, consequently the 74AHC1G4215-Q100 counts...
Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161D,652 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161D,653 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161PW,112 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161PW,118	The 74HC161 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock...
Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161D-Q100J Presettable synchronous 4-bit binary counter; asynchronous reset -- 74HC161PW-Q100J	The 74HC161-Q100 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock...
Presettable synchronous 4-bit binary up/down counter -- 74HC191D,652 Presettable synchronous 4-bit binary up/down counter -- 74HC191D,653 Presettable synchronous 4-bit binary up/down counter -- 74HC191PW,112 Presettable synchronous 4-bit binary up/down counter -- 74HC191PW,118	The 74HC191 is an asynchronously presettable 4-bit binary up/down counter. It contains four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down...
Presettable synchronous 4-bit binary up/down counter -- 74HC193D-Q100J Presettable synchronous 4-bit binary up/down counter -- 74HC193PW-Q100J Presettable synchronous 4-bit binary up/down counter -- 74HCT193D-Q100J Presettable synchronous 4-bit binary up/down counter -- 74HCT193PW-Q100J	The 74HC193-Q100; 74HCT193-Q100 is a 4-bit synchronous binary up/down counter. Separate up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state synchronously with the LOW-to-HIGH transition of either...
Presettable synchronous 4-bit binary up/down counter -- 74HC193D,652 Presettable synchronous 4-bit binary up/down counter -- 74HC193D,653 Presettable synchronous 4-bit binary up/down counter -- 74HC193PW,112 Presettable synchronous 4-bit binary up/down counter -- 74HC193PW,118 Presettable synchronous 4-bit binary up/down counter -- 74HCT193D,652 Presettable synchronous 4-bit binary up/down counter -- 74HCT193D,653 Presettable synchronous 4-bit binary up/down counter -- 74HCT193PW,112 Presettable synchronous 4-bit binary up/down counter -- 74HCT193PW,118	The 74HC193; 74HCT193 is a 4-bit synchronous binary up/down counter. Separate up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state synchronously with the LOW-to-HIGH transition of either...
Dual decade ripple counter -- 74HC390D,652 Dual decade ripple counter -- 74HC390D,653 Dual decade ripple counter -- 74HC390PW,112 Dual decade ripple counter -- 74HC390PW,118 Dual decade ripple counter -- 74HCT390D,652 Dual decade ripple counter -- 74HCT390D,653 Dual decade ripple counter -- 74HCT390PWHL	The 74HC390; 74HCT390 is a dual 4-bit decade ripple counter divided into four separately clocked sections. The counters have two divide-by-2 sections and two divide-by-5 sections. These sections share an...
Dual 4-bit binary ripple counter -- 74HC393BQ-Q100X Dual 4-bit binary ripple counter -- 74HC393D-Q100J Dual 4-bit binary ripple counter -- 74HC393PW-Q100J Dual 4-bit binary ripple counter -- 74HCT393BQ-Q100X Dual 4-bit binary ripple counter -- 74HCT393D-Q100J Dual 4-bit binary ripple counter -- 74HCT393PW-Q100J	The 74HC393-Q100; 74HCT393-Q100 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0...
Dual 4-bit binary ripple counter -- 74HC393BQ,115 Dual 4-bit binary ripple counter -- 74HC393D,652 Dual 4-bit binary ripple counter -- 74HC393D,653 Dual 4-bit binary ripple counter -- 74HC393PW,112 Dual 4-bit binary ripple counter -- 74HC393PW,118 Dual 4-bit binary ripple counter -- 74HCT393BQ,115 Dual 4-bit binary ripple counter -- 74HCT393D,652 Dual 4-bit binary ripple counter -- 74HCT393D,653 Dual 4-bit binary ripple counter -- 74HCT393PW,112 Dual 4-bit binary ripple counter -- 74HCT393PW,118	The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0...
8-bit synchronous binary down counter -- 74HC40103D,652 8-bit synchronous binary down counter -- 74HC40103D,653 8-bit synchronous binary down counter -- 74HC40103PW,112 8-bit synchronous binary down counter -- 74HC40103PW,118	The 74HC40103 is an 8-bit synchronous down counter. It has control inputs for enabling or disabling the clock (CP), for clearing the counter to its maximum count and for presetting...
Johnson decade counter with 10 decoded outputs -- 74HC4017BQ-Q100X Johnson decade counter with 10 decoded outputs -- 74HC4017D-Q100J Johnson decade counter with 10 decoded outputs -- 74HC4017PW-Q100J Johnson decade counter with 10 decoded outputs -- 74HCT4017BQ-Q100X Johnson decade counter with 10 decoded outputs -- 74HCT4017D-Q100J	The 74HC4017-Q100; 74HCT4017-Q100 is a 5-stage Johnson decade counter with 10 decoded outputs (Q0 to Q9), an output from the most significant flip-flop (Q5-9), two clock inputs (CP0 and CP1)...
Johnson decade counter with 10 decoded outputs -- 74HC4017BQ,115 Johnson decade counter with 10 decoded outputs -- 74HC4017D,652 Johnson decade counter with 10 decoded outputs -- 74HC4017D,653 Johnson decade counter with 10 decoded outputs -- 74HC4017PW,112 Johnson decade counter with 10 decoded outputs -- 74HC4017PW,118 Johnson decade counter with 10 decoded outputs -- 74HCT4017BQ,115 Johnson decade counter with 10 decoded outputs -- 74HCT4017D,652 Johnson decade counter with 10 decoded outputs -- 74HCT4017D,653	The 74HC4017; 74HCT4017 is a 5-stage Johnson decade counter with 10 decoded outputs (Q0 to Q9), an output from the most significant flip-flop (Q5-9), two clock inputs (CP0 and CP1)...
14-stage binary ripple counter -- 74HC4020BQ-Q100X 14-stage binary ripple counter -- 74HC4020D-Q100J 14-stage binary ripple counter -- 74HC4020PW-Q100J 14-stage binary ripple counter -- 74HCT4020BQ-Q100X 14-stage binary ripple counter -- 74HCT4020D-Q100J 14-stage binary ripple counter -- 74HCT4020PW-Q100J	The 74HC4020-Q100; 74HCT4020-Q100 is a 14-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0, and Q3 to...
14-stage binary ripple counter -- 74HC4020BQ,115 14-stage binary ripple counter -- 74HC4020D,652 14-stage binary ripple counter -- 74HC4020D,653 14-stage binary ripple counter -- 74HC4020PW,112 14-stage binary ripple counter -- 74HC4020PW,118 14-stage binary ripple counter -- 74HCT4020BQ,115 14-stage binary ripple counter -- 74HCT4020D,652 14-stage binary ripple counter -- 74HCT4020D,653 14-stage binary ripple counter -- 74HCT4020PW,112 14-stage binary ripple counter -- 74HCT4020PW,118	The 74HC4020; 74HCT4020 is a 14-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0, and Q3 to...
7-stage binary ripple counter -- 74HC4024D,652 7-stage binary ripple counter -- 74HC4024D,653	The 74HC4024 is a 7-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and seven fully buffered parallel outputs (Q0 to Q6). The...
7-stage binary ripple counter -- 74HC4024D-Q100J	The 74HC4024-Q100 is a 7-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and seven fully buffered parallel outputs (Q0 to Q6). The...
12-stage binary ripple counter -- 74HC4040BQ-Q100X 12-stage binary ripple counter -- 74HC4040D-Q100J 12-stage binary ripple counter -- 74HC4040PW-Q100J 12-stage binary ripple counter -- 74HCT4040BQ-Q100X 12-stage binary ripple counter -- 74HCT4040D-Q100J 12-stage binary ripple counter -- 74HCT4040PW-Q100J	The 74HC4040-Q100; 74HCT4040-Q100 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter...
12-stage binary ripple counter -- 74HC4040BQX 12-stage binary ripple counter -- 74HC4040D,652 12-stage binary ripple counter -- 74HC4040D,653 12-stage binary ripple counter -- 74HC4040PW,112 12-stage binary ripple counter -- 74HC4040PW,118 12-stage binary ripple counter -- 74HCT4040BQX 12-stage binary ripple counter -- 74HCT4040D,652 12-stage binary ripple counter -- 74HCT4040D,653 12-stage binary ripple counter -- 74HCT4040PW,112 12-stage binary ripple counter -- 74HCT4040PW,118	The 74HC4040; 74HCT4040 is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter...
14-stage binary ripple counter with oscillator -- 74HC4060BQ-Q100,11 14-stage binary ripple counter with oscillator -- 74HC4060D-Q100,118 14-stage binary ripple counter with oscillator -- 74HC4060PW-Q100,11 14-stage binary ripple counter with oscillator -- 74HCT4060BQ-Q100,1 14-stage binary ripple counter with oscillator -- 74HCT4060D-Q100,11	The 74HC4060-Q100; 74HCT4060-Q100 is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, RTC and CTC), ten buffered parallel outputs (Q3 to Q9 and Q11 to Q13) and...
14-stage binary ripple counter with oscillator -- 74HC4060BQ,115 14-stage binary ripple counter with oscillator -- 74HC4060D,652 14-stage binary ripple counter with oscillator -- 74HC4060D,653 14-stage binary ripple counter with oscillator -- 74HC4060PW,112 14-stage binary ripple counter with oscillator -- 74HC4060PW,118 14-stage binary ripple counter with oscillator -- 74HCT4060BQ,115 14-stage binary ripple counter with oscillator -- 74HCT4060D,652 14-stage binary ripple counter with oscillator -- 74HCT4060D,653	The 74HC4060; 74HCT4060 is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, RTC and CTC), ten buffered parallel outputs (Q3 to Q9 and Q11 to Q13) and...
Dual 4-bit synchronous binary counter -- 74HC4520D-Q100J Dual 4-bit synchronous binary counter -- 74HC4520PW-Q100J Dual 4-bit synchronous binary counter -- 74HCT4520D-Q100J	The 74HC4520-Q100; 74HCT4520-Q100 are dual 4-bit internally synchronous binary counters with two clock inputs (nCP0 and nCP1). They have buffered outputs from all 4 bit positions (nQ0 to nQ3), and...
Dual 4-bit synchronous binary counter -- 74HC4520D,112 Dual 4-bit synchronous binary counter -- 74HC4520D,118 Dual 4-bit synchronous binary counter -- 74HC4520PW,112 Dual 4-bit synchronous binary counter -- 74HC4520PW,118 Dual 4-bit synchronous binary counter -- 74HCT4520D,112 Dual 4-bit synchronous binary counter -- 74HCT4520D,118	The 74HC4520; 74HCT4520 are dual 4-bit internally synchronous binary counters with two clock inputs (nCP0 and nCP1). They have buffered outputs from all 4 bit positions (nQ0 to nQ3) and...
8-bit binary counter with output register; 3-state -- 74HC590BQ,115 8-bit binary counter with output register; 3-state -- 74HC590D,112 8-bit binary counter with output register; 3-state -- 74HC590D,118 8-bit binary counter with output register; 3-state -- 74HC590PW,112 8-bit binary counter with output register; 3-state -- 74HC590PW,118	The 74HC590 is an 8-bit binary counter with a storage register and 3-state outputs. The storage register has parallel (Q0 to Q7) outputs. The binary counter features master reset counter...
8-bit binary counter with output register; 3-state -- 74HC590PW-Q100J	The 74HC590-Q100 is an 8-bit binary counter with a storage register and 3-state outputs. The storage register has parallel (Q0 to Q7) outputs. The binary counter features master reset counter...
Dual 4-bit binary ripple counter -- 74LV393D,112 Dual 4-bit binary ripple counter -- 74LV393D,118 Dual 4-bit binary ripple counter -- 74LV393PW,112 Dual 4-bit binary ripple counter -- 74LV393PW,118	The 74LV393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to...
Dual 4-bit binary ripple counter -- 74LV393D-Q100J Dual 4-bit binary ripple counter -- 74LV393PW-Q100J	The 74LV393-Q100 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to...
14-stage binary ripple counter with oscillator -- 74LV4060D,112 14-stage binary ripple counter with oscillator -- 74LV4060D,118 14-stage binary ripple counter with oscillator -- 74LV4060PW,112 14-stage binary ripple counter with oscillator -- 74LV4060PW,118	The 74LV4060 is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, RTC and CTC), ten buffered parallel outputs (Q3 to Q9 and...
14-stage binary ripple counter with oscillator -- 74LV4060D-Q100J 14-stage binary ripple counter with oscillator -- 74LV4060PW-Q100J	The 74LV4060-Q100 is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, RTC and CTC), ten buffered parallel outputs (Q3 to Q9 and...
Presettable synchronous 4-bit binary counter; asynchronous reset -- 74LVC161BQ,115 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74LVC161D,112 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74LVC161D,118 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74LVC161PW,112 Presettable synchronous 4-bit binary counter; asynchronous reset -- 74LVC161PW,118	The 74LVC161 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock...
Presettable synchronous 4-bit binary counter; synchronous reset -- 74LVC163BQ,115 Presettable synchronous 4-bit binary counter; synchronous reset -- 74LVC163D,112 Presettable synchronous 4-bit binary counter; synchronous reset -- 74LVC163D,118 Presettable synchronous 4-bit binary counter; synchronous reset -- 74LVC163PW,112 Presettable synchronous 4-bit binary counter; synchronous reset -- 74LVC163PW,118	The 74LVC163 is a synchronous presettable binary counter which features an internal look-ahead carry and can be used for high-speed counting. Synchronous operation is provided by having all flip-flops clocked...
5-stage Johnson decade counter -- HEF4017BT,652 5-stage Johnson decade counter -- HEF4017BT,653	The HEF4017B is a 5-stage Johnson decade counter with ten spike-free decoded active HIGH outputs (Q0 to Q9), an active LOW carry output from the most significant flip-flop (Q5-9), active...
5-stage Johnson decade counter -- HEF4017BT-Q100J	The HEF4017B-Q100 is a 5-stage Johnson decade counter with ten spike-free decoded active HIGH outputs (Q0 to Q9), an active LOW carry output from the most significant flip-flop (Q5-9), active...
14-stage binary counter -- HEF4020BT,652 14-stage binary counter -- HEF4020BT,653 14-stage binary counter -- HEF4020BT-Q100J	The HEF4020B is a 14-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0, and Q3 to Q13).
12-stage binary ripple counter -- HEF4040BT,652 12-stage binary ripple counter -- HEF4040BT,653 12-stage binary ripple counter -- HEF4040BT-Q100J	The HEF4040B is a 12-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve fully buffered outputs (Q0 to Q11). The counter...
14-stage ripple-carry binary counter/divider and oscillator -- HEF4060BT,652 14-stage ripple-carry binary counter/divider and oscillator -- HEF4060BT,653 14-stage ripple-carry binary counter/divider and oscillator -- HEF4060BTTJ	The HEF4060B is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, REXT and CEXT), ten buffered parallel outputs (Q3 to Q9 and Q11 to Q13) and an...
14-stage ripple-carry binary counter/divider and oscillator -- HEF4060BT-Q100J	The HEF4060B-Q100 is a 14-stage ripple-carry counter/divider and oscillator with three oscillator terminals (RS, REXT and CEXT), ten buffered parallel outputs (Q3 to Q9 and Q11 to Q13) and an...
Dual BCD counter -- HEF4518BT,652 Dual BCD counter -- HEF4518BT,653	The HEF4518B is a dual 4-bit internally synchronous BCD counter. The counter has two clock inputs (CP0 and CP1 ), buffered outputs from all four bit positions (O0 to O3)...
Dual binary counter -- HEF4520BT,652 Dual binary counter -- HEF4520BT,653	The HEF4520B is a dual 4-bit internally synchronous binary counter with two clock inputs (nCP0 and nCP1), buffered outputs from all four bit positions (nQ0 to nQ3) and an asynchronous...
Dual binary counter -- HEF4520BT-Q100J	The HEF4520B-Q100 is a dual 4-bit internally synchronous binary counter with two clock inputs (nCP0 and nCP1), buffered outputs from all four bit positions (nQ0 to nQ3) and an asynchronous...
24-stage frequency divider and oscillator -- HEF4521BT,652 24-stage frequency divider and oscillator -- HEF4521BT,653	The HEF4521B consists of a chain of 24 toggle flip-flops with an overriding asynchronous master reset input (MR), and an input circuit that allows three modes of operation. The single...

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