DFP Digital Counters 983

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Part	Manufacturer	Logic IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Total Dose (V)	Package Body Material	Surface Mount	No. of Functions	Maximum Frequency At Nominal Supply	Technology	Screening Level	No. of Bits	Load or Preset Input	Packing Method	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Load Capacitance (CL)	Package Style (Meter)	Package Equivalence Code	Operation Mode	Propagation Delay (tpd)	Maximum I (ol)	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Count Direction	Trigger Type	Minimum Operating Temperature	Terminal Finish	Terminal Position	Minimum fmax	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Minimum Supply Voltage (Vsup)	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Family
HCC4024BK1	STMicroelectronics	BINARY COUNTER		FLAT	14	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL14,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F14		15 V	2.33 mm	6.91 mm		3 V				9.95 mm	HC
920405201	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK							125 Cel			-55 Cel		DUAL		R-CDFP-F16		15 V				3 V					4000/14000/40000
HCC4520BKG	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP/DOWN		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.94 mm	HC
HCC4022BKG	STMicroelectronics	RING COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.94 mm	HC
M54HC4040K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	4000000 Hz	CMOS		12		TR	4.5	2/6	50 pF	FLATPACK	FL14,.3	ASYNCHRONOUS	220 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel	TIN LEAD	DUAL	24 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
HCC4018BK	STMicroelectronics	DECADE COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC	YES	1	3000000 Hz	CMOS	ESCC9000		YES			5/15	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-XDFP-F16					Not Qualified
HCC4024BKT	STMicroelectronics	BINARY COUNTER		FLAT	14	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL14,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F14		15 V	2.33 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.95 mm	HC
M54HC191KT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		4	NO					FLATPACK		SYNCHRONOUS					125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
HCC4029BKT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP/DOWN		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.94 mm	HC
RHFAC161K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	TR	3			FLATPACK	FL16,.3	SYNCHRONOUS				1.27 mm	150 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V	2.38 mm	6.91 mm		2 V				9.94 mm	AC
M54HC193K	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	17000000 Hz	CMOS	ESCC9000	4	YES		4.5	2/6		FLATPACK	FL16,.3	SYNCHRONOUS	285 ns	4 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	20 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
HCC4024BKG	STMicroelectronics	BINARY COUNTER		FLAT	14	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL14,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F14		15 V	2.33 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.95 mm	HC
M54HC393K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	14	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		4		TR	4.5			FLATPACK		ASYNCHRONOUS	345 ns			1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel	TIN LEAD	DUAL	33 MHz	R-CDFP-F14		6 V		6.91 mm	Not Qualified	2 V	e0			9.95 mm	HC/UH
M54HC191K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	17000000 Hz	CMOS		4		TR	4.5	2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS	285 ns	4 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	20 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
M54HC191K	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	17000000 Hz	CMOS	ESCC9000	4	YES		4.5	2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS	285 ns	4 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	20 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
M54HC161K	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	21000000 Hz	CMOS	ESCC9000	4	YES		4.5	2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS	190 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	25 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
HCC40193BKT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	YES		10			FLATPACK	FL16,.3					1.27 mm	125 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
RHFAC191K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	TR	3			FLATPACK	FL16,.3	SYNCHRONOUS				1.27 mm	150 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-CDFP-F16		6 V	2.38 mm	6.91 mm		2 V				9.94 mm	AC
HCC4089BK	STMicroelectronics		MILITARY	FLAT	16	DFP	RECTANGULAR		CERAMIC	YES			CMOS			YES			3/18		FLATPACK	FL16,.3				Counters	1.27 mm	125 Cel			-55 Cel		DUAL		R-XDFP-F16					Not Qualified
RHFAC161K04V	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	14	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	TR	3			FLATPACK	FL14,.25	SYNCHRONOUS				1.27 mm	150 Cel	UP		-55 Cel		DUAL		R-CDFP-F14		6 V	2.72 mm	6.345 mm		2 V				9.5 mm	AC
HCC4022BK1	STMicroelectronics	RING COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
RHFACT191K1	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	NO		5			FLATPACK	FL16,.3	SYNCHRONOUS				1.27 mm	150 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-CDFP-F16		5.5 V	2.38 mm	6.91 mm		4.5 V				9.94 mm	ACT
HCC4017BKG	STMicroelectronics	DECADE COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	NO		10			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
HCC40193BKG	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	YES		10			FLATPACK	FL16,.3					1.27 mm	125 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
8607601XX	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	YES		4.5			FLATPACK		SYNCHRONOUS	310 ns				125 Cel	UP	POSITIVE EDGE	-55 Cel		DUAL	25 MHz	R-CDFP-F16		6 V			Not Qualified	2 V					HC/UH
M54HC4060K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	20000000 Hz	CMOS		14		TR	4.5	2/6	50 pF	FLATPACK	FL16,.3	ASYNCHRONOUS	450 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel	TIN LEAD	DUAL	24 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
HCC40103BKG	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		8	YES	TR	5			FLATPACK		SYNCHRONOUS	600 ns			1.27 mm	125 Cel	DOWN	POSITIVE EDGE	-55 Cel		DUAL	1.4 MHz	R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	4000/14000/40000
8500401XC	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	1	19000000 Hz	CMOS	MIL-PRF-38535	12	NO		4.5	2/6	50 pF	FLATPACK	FL16,.3	ASYNCHRONOUS	225 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel		DUAL	22 MHz	R-CDFP-F16		6 V			Not Qualified	2 V					HC/UH
HCC4020BKT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.94 mm	HC
HCC4040BKG	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		12		TR	5			FLATPACK		ASYNCHRONOUS				1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	4000/14000/40000
RHFAC191K02V	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC	YES	1		CMOS	38535V;38534K;883S		YES	TR		3.3/5		FLATPACK	FL16,.3	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-XDFP-F16					Not Qualified
HCC40161BKT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS			NO		10			FLATPACK	FL16,.3	ASYNCHRONOUS				1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		20 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
HCC4017BK	STMicroelectronics	DECADE COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC	YES	1	2500000 Hz	CMOS	ESCC9000		NO			5/15	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-XDFP-F16					Not Qualified
M54HC4020KT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		14	NO					FLATPACK							125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
8407501XA	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR		CERAMIC	YES	1	21000000 Hz	CMOS	38535Q/M;38534H;883B		YES			2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS		4 Amp	Counters	1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-XDFP-F16					Not Qualified
M54HC4060KG	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		14	NO					FLATPACK							125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
HCC4040BK1	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V				9.94 mm	HC
M54HC393K	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	14	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	2	31000000 Hz	CMOS	ESCC9000	4	NO		4.5	2/6	50 pF	FLATPACK	FL14,.3	ASYNCHRONOUS	345 ns		Counters	1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel	TIN LEAD	DUAL	33 MHz	R-CDFP-F14		6 V		6.91 mm	Not Qualified	2 V	e0			9.95 mm	HC/UH
M54HC161K1	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	21000000 Hz	CMOS		4		TR	4.5	2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS	190 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	25 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
HCC4060BK	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC	YES	1		CMOS	ESCC9000		NO			5/15		FLATPACK	FL16,.3	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-XDFP-F16					Not Qualified
M54HC191KG	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		4	NO					FLATPACK		SYNCHRONOUS					125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
RHFACT191K04V	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	300k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-PRF-38535 Class V	4	NO		5			FLATPACK	FL16,.3	SYNCHRONOUS				1.27 mm	150 Cel	BIDIRECTIONAL		-55 Cel		DUAL		R-CDFP-F16		5.5 V	2.38 mm	6.91 mm		4.5 V				9.94 mm	ACT
M54HC160K	STMicroelectronics	DECADE COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR	50k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES	1	21000000 Hz	CMOS		4	YES		4.5	2/6	50 pF	FLATPACK	FL16,.3	SYNCHRONOUS	190 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	POSITIVE EDGE	-55 Cel	TIN LEAD	DUAL	25 MHz	R-CDFP-F16		6 V	2.38 mm	6.91 mm	Not Qualified	2 V	e0			9.94 mm	HC/UH
M54HC193KT	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS			NO					FLATPACK		SYNCHRONOUS					125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
8500401FC	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	16	DFP	RECTANGULAR		CERAMIC, GLASS-SEALED	YES	1	19000000 Hz	CMOS	38535Q/M;38534H;883B	12	NO		4.5	2/6	50 pF	FLATPACK	FL16,.3	ASYNCHRONOUS	225 ns	4 Amp	Counters	1.27 mm	125 Cel	UP	NEGATIVE EDGE	-55 Cel		DUAL	22 MHz	R-GDFP-F16	NOT APPLICABLE	6 V	2.03 mm	6.73 mm	Not Qualified	2 V		NOT APPLICABLE	NOT APPLICABLE	10.2 mm	HC/UH
M54HC160KT	STMicroelectronics	DECADE COUNTER		FLAT	16	DFP	RECTANGULAR		CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS			NO					FLATPACK		SYNCHRONOUS					125 Cel	UP		-55 Cel		DUAL		R-CDFP-F16		6 V				2 V					HC
HCC4029BKG	STMicroelectronics	BINARY COUNTER		FLAT	16	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC, METAL-SEALED COFIRED	YES			CMOS					5			FLATPACK	FL16,.3					1.27 mm	125 Cel	UP/DOWN		-55 Cel		DUAL		R-CDFP-F16		15 V	2.38 mm	6.91 mm		3 V		NOT SPECIFIED	NOT SPECIFIED	9.94 mm	HC
HCC4024BK	STMicroelectronics	BINARY COUNTER	MILITARY	FLAT	14	DFP	RECTANGULAR	100k Rad(Si)	CERAMIC	YES	1		CMOS	ESCC9000		NO			5/15		FLATPACK	FL14,.3	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	UP		-55 Cel		DUAL		R-XDFP-F14					Not Qualified

Digital Counters

Digital counters are electronic circuits that can be used to count and keep track of the number of events or occurrences in a digital system. They are commonly used in digital systems to generate timing signals, to control sequencing, and to implement digital control functions.

Digital counters can be designed using various technologies, including transistor-transistor logic (TTL), complementary metal-oxide-semiconductor (CMOS), and field-programmable gate arrays (FPGAs). They can also be designed using various types of flip-flops, such as D flip-flops, JK flip-flops, and T flip-flops.

Digital counters can be classified into two main types: synchronous counters and asynchronous counters. Synchronous counters use a common clock signal to synchronize the operation of all the flip-flops in the counter. Asynchronous counters, on the other hand, do not use a common clock signal and rely on the propagation delay of the flip-flops to sequence their operation.

Digital counters can also be classified based on their counting sequence. They can count up, down, or both up and down, depending on the application. Up counters increment the count each time an input pulse is received, while down counters decrement the count each time an input pulse is received. Up-down counters can count both up and down, depending on the direction of the input signal.

Digital counters can be used in various applications, including frequency division, time delay generation, event counting, and sequence control. They can be used to generate timing signals for clocking digital circuits, to control the sequencing of operations in a digital system, and to implement digital control functions, such as shift registers and sequence generators.