DIE Digital Counters 99

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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	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	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)	Qualification	Minimum Supply Voltage (Vsup)	Maximum Power Supply Current (ICC)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Family
CD4026BH	Texas Instruments	DISPLAY DRIVER COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		5	YES	5			UNCASED CHIP		SYNCHRONOUS	700 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	8 MHz	R-XUUC-N16		18 V	Not Qualified	3 V		JOHNSON COUNTER				4000/14000/40000
CD4024BH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	14	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		7	YES	5			UNCASED CHIP		ASYNCHRONOUS	360 ns			125 Cel	UP	NEGATIVE EDGE	-55 Cel		UPPER	24 MHz	R-XUUC-N14		18 V	Not Qualified	3 V		OUTPUTS FROM 12 STAGES AVAILABLE				4000/14000/40000
SN74LS90-W	Texas Instruments	DECADE COUNTER	COMMERCIAL	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	2		TTL		3	YES	5			UNCASED CHIP		ASYNCHRONOUS	50 ns			70 Cel	UP	NEGATIVE EDGE	0 Cel		UPPER	32 MHz	X-XUUC-N		5.25 V		4.75 V						LS
CD40160BH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	400 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	8 MHz	R-XUUC-N16		18 V	Not Qualified	3 V		TCO OUTPUT				4000/14000/40000
CD4020BH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		14	YES	5			UNCASED CHIP		ASYNCHRONOUS	360 ns			125 Cel	UP	NEGATIVE EDGE	-55 Cel		UPPER	24 MHz	R-XUUC-N16		18 V	Not Qualified	3 V		OUTPUTS FROM 12 STAGES AVAILABLE				4000/14000/40000
CD74HC191H	Texas Instruments	BINARY COUNTER	INDUSTRIAL	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	4.5			UNCASED CHIP		SYNCHRONOUS	215 ns			85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	29 MHz	R-XUUC-N16		6 V	Not Qualified	2 V		TCO OUTPUT				HC/UH
CD4541BH	Texas Instruments	BINARY COUNTER		NO LEAD	12	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS							UNCASED CHIP											UPPER		R-XUUC-N12			Not Qualified							4000/14000/40000
CD4059AH	Texas Instruments	DIVIDE BY N COUNTER	MILITARY	NO LEAD	24	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS			YES	5			UNCASED CHIP		ASYNCHRONOUS	360 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER	3 MHz	R-XUUC-N24		12 V	Not Qualified	3 V		PROGRAMMABLE TO DIVIDE INPUT BY 3-15999; SCHMITT TRIGGER ON CLOCK INPUT; WITH OUTPUT LATCH				4000/14000/40000
CD40103BH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		8	YES	5			UNCASED CHIP		SYNCHRONOUS	600 ns			125 Cel	DOWN	POSITIVE EDGE	-55 Cel		UPPER	2.4 MHz	R-XUUC-N16		18 V	Not Qualified	3 V		TCO OUTPUT; RESET TO MAX COUNT				4000/14000/40000
CD4029BH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	500 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER	5.5 MHz	R-XUUC-N16		18 V	Not Qualified	3 V		BINARY/BCD COUNT OPTION; TCO OUTPUT				4000/14000/40000
5962F8974902V9A	STMicroelectronics	BINARY COUNTER	MILITARY	NO LEAD		DIE	RECTANGULAR	300k Rad(Si)	UNSPECIFIED	YES	1	55000000 Hz	CMOS	MIL-PRF-38535 Class V	4	YES	4.5	3.3/5	50 pF	UNCASED CHIP	DIE OR CHIP	SYNCHRONOUS	16.5 ns	12 Amp	Counter	125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER	90 MHz	R-XUUC-N	1	5.5 V	Qualified	3 V						AC
933783380005	NXP Semiconductors	BINARY COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	4.5			UNCASED CHIP		SYNCHRONOUS	285 ns			125 Cel	UP	POSITIVE EDGE	-40 Cel		UPPER	18 MHz	X-XUUC-N		6 V	Not Qualified	2 V						HC/UH
933835960005	NXP Semiconductors	DIVIDE BY N COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	5			UNCASED CHIP		ASYNCHRONOUS	69 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	14 MHz	X-XUUC-N		5.5 V	Not Qualified	4.5 V						HCT
933622950005	NXP Semiconductors	DIVIDE BY N COUNTER	INDUSTRIAL	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	5			UNCASED CHIP		ASYNCHRONOUS	200 ns			85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	10 MHz	X-XUUC-N			Not Qualified							4000/14000/40000
933379050005	NXP Semiconductors	BINARY COUNTER		NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	425 ns				BIDIRECTIONAL	POSITIVE EDGE			UPPER	9 MHz	X-XUUC-N			Not Qualified
933371690005	NXP Semiconductors	BINARY COUNTER		NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	310 ns				BIDIRECTIONAL	POSITIVE EDGE			UPPER	9 MHz	X-XUUC-N			Not Qualified							4000/14000/40000
933824980005	NXP Semiconductors	BINARY COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	65 ns			125 Cel	UP	POSITIVE EDGE	-40 Cel		UPPER	15 MHz	X-XUUC-N		5.5 V	Not Qualified	4.5 V						HCT
933835670005	NXP Semiconductors	DIVIDE BY N COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	4.5			UNCASED CHIP		ASYNCHRONOUS	300 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	17 MHz	X-XUUC-N		6 V	Not Qualified	2 V						HC/UH
HEF4516BU	NXP Semiconductors	BINARY COUNTER		NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	310 ns				BIDIRECTIONAL	POSITIVE EDGE			UPPER	9 MHz	X-XUUC-N			Not Qualified							4000/14000/40000
HEF40193BU	NXP Semiconductors	BINARY COUNTER		NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	425 ns				BIDIRECTIONAL	POSITIVE EDGE			UPPER	9 MHz	X-XUUC-N			Not Qualified
74HCT161U	NXP Semiconductors	BINARY COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	65 ns			125 Cel	UP	POSITIVE EDGE	-40 Cel		UPPER	15 MHz	X-XUUC-N		5.5 V	Not Qualified	4.5 V						HCT
74HCT4059U	NXP Semiconductors	DIVIDE BY N COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	5			UNCASED CHIP		ASYNCHRONOUS	69 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	14 MHz	X-XUUC-N		5.5 V	Not Qualified	4.5 V						HCT
74HC4059U	NXP Semiconductors	DIVIDE BY N COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	4.5			UNCASED CHIP		ASYNCHRONOUS	300 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	17 MHz	X-XUUC-N		6 V	Not Qualified	2 V						HC/UH
HEF4059BU	NXP Semiconductors	DIVIDE BY N COUNTER	INDUSTRIAL	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS			YES	5			UNCASED CHIP		ASYNCHRONOUS	200 ns			85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel		UPPER	10 MHz	X-XUUC-N			Not Qualified							4000/14000/40000
74HC161U	NXP Semiconductors	BINARY COUNTER	AUTOMOTIVE	NO LEAD		DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	4.5			UNCASED CHIP		SYNCHRONOUS	285 ns			125 Cel	UP	POSITIVE EDGE	-40 Cel		UPPER	18 MHz	X-XUUC-N		6 V	Not Qualified	2 V						HC/UH
MM74C945C/D	Maxim Integrated	DISPLAY DRIVER COUNTER	COMMERCIAL	NO LEAD	40	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		16	YES				UNCASED CHIP		ASYNCHRONOUS				70 Cel	BIDIRECTIONAL	NEGATIVE EDGE	0 Cel	TIN LEAD	UPPER	2 MHz	R-XUUC-N40		6 V	Not Qualified	3 V		4 DIGIT COUNTER WITH OUTPUT LATCHES; SCHMITT TRIGGER ON CLOCK INPUT	e0			CMOS
MM74C947C/D	Maxim Integrated	DISPLAY DRIVER COUNTER	COMMERCIAL	NO LEAD	40	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		16	YES				UNCASED CHIP		ASYNCHRONOUS				70 Cel	BIDIRECTIONAL	NEGATIVE EDGE	0 Cel	TIN LEAD	UPPER	2 MHz	R-XUUC-N40		6 V	Not Qualified	3 V		4 DIGIT COUNTER WITH OUTPUT LATCHES; SCHMITT TRIGGER ON CLOCK INPUT	e0			CMOS
HCS160HMSR	Renesas Electronics	DECADE COUNTER	MILITARY	NO LEAD	16	DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	29 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER		X-XUUC-N16		5.5 V	Not Qualified	4.5 V						HC/UH
HCS161HMSR	Renesas Electronics	BINARY COUNTER		NO LEAD	16	DIE	RECTANGULAR	100k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	5			UNCASED CHIP		SYNCHRONOUS	34 ns				UP	POSITIVE EDGE			UPPER		R-XUUC-N16		5.5 V	Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	HC/UH
HCTS393HMSR	Renesas Electronics	BINARY COUNTER		NO LEAD	14	DIE	SQUARE	200k Rad(Si)	UNSPECIFIED	YES	2		CMOS	MIL-PRF-38535 Class V	4	YES	5			UNCASED CHIP		ASYNCHRONOUS	49 ns				UP	NEGATIVE EDGE		MATTE TIN	UPPER		S-XUUC-N14		5.5 V	Not Qualified	4.5 V			e3			HCT
HCTS161AHMSR	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	29 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER		X-XUUC-N16		5.5 V	Not Qualified	4.5 V						HCT
HCS193HMSR	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	37 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER		X-XUUC-N16		5.5 V	Not Qualified	4.5 V						HC/UH
HCTS191HMSR	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	UNSPECIFIED		UNSPECIFIED	YES	1		CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	33 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER		X-XUUC-N16		5.5 V	Not Qualified	4.5 V						HCT
HCS163HMSR	Renesas Electronics	BINARY COUNTER		NO LEAD	16	DIE	RECTANGULAR	200k Rad(Si)	UNSPECIFIED	YES	1		CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	31 ns	.75 Amp		125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	24 MHz	R-XUUC-N16		5.5 V		4.5 V						HC
HCTS193HMSR	Renesas Electronics	BINARY COUNTER		NO LEAD	16	DIE	RECTANGULAR	200k Rad(Si)	UNSPECIFIED	YES	1	15000000 Hz	CMOS		4	YES	5		50 pF	UNCASED CHIP		SYNCHRONOUS	42 ns	.05 Amp		125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER		R-XUUC-N16		5.5 V		4.5 V						HCT
CD40193BHSR	Renesas Electronics	BINARY COUNTER		NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	NO	5		50 pF	UNCASED CHIP		SYNCHRONOUS	675 ns			125 Cel	UP/DOWN	POSITIVE EDGE	-55 Cel		UPPER		R-XUUC-N16		18 V		3 V	1 mA			NOT SPECIFIED	NOT SPECIFIED	4000/14000/40000
5962R9562101V9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR	100k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	5			UNCASED CHIP		SYNCHRONOUS	500 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel	TIN LEAD	UPPER	5.5 MHz	R-XUUC-N16		18 V	Qualified	3 V			e0			4000/14000/40000
5962F9671601Q9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	SQUARE	300k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class Q	4	YES	5			UNCASED CHIP		SYNCHRONOUS	23 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	50 MHz	S-XUUC-N16		5.5 V	Not Qualified	4.5 V						ACT
5962F9671602Q9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	SQUARE	300k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class Q	4	YES	5			UNCASED CHIP		SYNCHRONOUS	23 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	50 MHz	S-XUUC-N16		5.5 V	Not Qualified	4.5 V						ACT
5962R9562101V9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	500 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER	5.5 MHz	R-XUUC-N16		18 V	Qualified	3 V						4000/14000/40000
5962R9662803V9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	14	DIE	RECTANGULAR	100k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class V	7		5			UNCASED CHIP		ASYNCHRONOUS	486 ns			125 Cel	UP	NEGATIVE EDGE	-55 Cel		UPPER	12 MHz	R-XUUC-N14		18 V	Qualified	3 V		INPUT AC PARAMETRIC VALUES NOT FROM POST RADIATION MEASUREMENT				4000/14000/40000
5962R9562102V9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	500 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel		UPPER	5.5 MHz	R-XUUC-N16		18 V	Qualified	3 V						4000/14000/40000
5962R9575001V9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	14	DIE	SQUARE		UNSPECIFIED	YES	2		CMOS		4	YES	5			UNCASED CHIP		ASYNCHRONOUS	59 ns			125 Cel	UP	NEGATIVE EDGE	-55 Cel		UPPER		S-XUUC-N14		5.5 V	Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	HCT
5962F9671601Q9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	SQUARE	300k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class Q	4	YES	5			UNCASED CHIP		SYNCHRONOUS	23 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	50 MHz	S-XUUC-N16		5.5 V	Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	ACT
5962R9573001V9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR		UNSPECIFIED	YES	1		CMOS		4	YES	5			UNCASED CHIP		SYNCHRONOUS	39 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER		R-XUUC-N16		5.5 V	Qualified	4.5 V						HC/UH
5962F9671602Q9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	SQUARE	300k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class Q	4	YES	5			UNCASED CHIP		SYNCHRONOUS	23 ns			125 Cel	UP	POSITIVE EDGE	-55 Cel		UPPER	50 MHz	S-XUUC-N16		5.5 V	Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	ACT
5962R9660802V9A	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	16	DIE	RECTANGULAR	100k Rad(Si)	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535 Class V	4	YES	5			UNCASED CHIP		SYNCHRONOUS	675 ns			125 Cel	BIDIRECTIONAL	POSITIVE EDGE	-55 Cel	TIN LEAD	UPPER	2 MHz	R-XUUC-N16		18 V	Qualified	3 V		TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK	e0			4000/14000/40000
5962R9575001V9X	Renesas Electronics	BINARY COUNTER	MILITARY	NO LEAD	14	DIE	SQUARE		UNSPECIFIED	YES	2		CMOS		4	YES	5			UNCASED CHIP		ASYNCHRONOUS	59 ns			125 Cel	UP	NEGATIVE EDGE	-55 Cel		UPPER		S-XUUC-N14		5.5 V	Qualified	4.5 V						HCT

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.