J BEND Digital Counters 323

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Part	Manufacturer	Logic IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	No. of Functions	Maximum Frequency At Nominal Supply	Technology	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	Terminal Pitch	Maximum Operating Temperature	Count Direction	Trigger Type	Minimum Operating Temperature	Terminal Finish	Terminal Position	Minimum fmax	JESD-30 Code	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Minimum Supply Voltage (Vsup)	Maximum Power Supply Current (ICC)	Additional Features	JESD-609 Code	Length	Family
M74HCT163C1R	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	25000000 Hz	CMOS	4	YES	5	5	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	45 ns	4 Amp	Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	25 MHz	S-PQCC-J20	5.5 V	4.57 mm	8.965 mm	Not Qualified	4.5 V		TCO OUTPUT	e3	8.965 mm	HCT
M74HC4518C1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	2	20000000 Hz	CMOS	4	NO	5	2/6	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	48 ns	4 Amp	Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	TIN LEAD	QUAD	20 MHz	S-PQCC-J20	6 V	4.57 mm	8.9662 mm	Not Qualified	2 V		GATED CLOCK; SCHMITT TRIGGER ON CLOCK INPUT	e0	8.9662 mm	HC/UH
T74LS190C1	STMicroelectronics	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL	4	YES	5		15 pF	CHIP CARRIER		SYNCHRONOUS	36 ns			1.27 mm	70 Cel	BIDIRECTIONAL	POSITIVE EDGE	0 Cel		QUAD	20 MHz	S-PQCC-J20	5.25 V	4.57 mm	8.9662 mm	Not Qualified	4.75 V	35 mA	TCO OUTPUT		8.9662 mm	LS
M74HC4020C1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	24000000 Hz	CMOS	14	NO	5	2/6	50 pF	CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	36 ns	4 Amp	Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	TIN LEAD	QUAD	24 MHz	S-PQCC-J20	6 V	4.57 mm	8.9662 mm	Not Qualified	2 V		OUTPUTS FROM 12 STAGES AVAILABLE	e0	8.9662 mm	HC/UH
HCF4527BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	220 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	TIN LEAD	QUAD	1.2 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		BCD RATE MULTIPLIER; TCO OUTPUT; COUNT ENABLE, INHIBIT AND CASCADE INPUTS; COMPLEMENTARY OUTPUTS	e0	8.965 mm	4000/14000/40000
HCF4018BC1	STMicroelectronics	RING COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	3000000 Hz	CMOS	5	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	3 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		JOHNSON COUNTER, PROGRAMMABLE WITH EXT CONNECTIONS; SCHMITT TRIGGER ON CLOCK INPUT; INVERTED OUTPUTS	e3	8.965 mm	4000/14000/40000
HCF4029BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	500 ns		Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	5.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		BINARY/BCD COUNT OPTION; TCO OUTPUT; COUNT ENABLE INPUT	e3	8.965 mm	4000/14000/40000
HCF4520BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	2	3000000 Hz	CMOS	4	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	560 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	4 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		GATED CLOCK; SCHMITT TRIGGER ON CLOCK INPUT	e3	8.965 mm	4000/14000/40000
HCF4022BC1	STMicroelectronics	RING COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2500000 Hz	CMOS	8	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	650 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		JOHNSON COUNTER WITH 8 DECODED OUTPUTS; TCO OUTPUT; GATED CLOCK	e3	8.9662 mm	4000/14000/40000
HCF40162BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e3	8.9662 mm	4000/14000/40000
HCF40193BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	500 ns		Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK	e3	8.965 mm	4000/14000/40000
HCF40161BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e3	8.9662 mm	4000/14000/40000
HCF4521BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	24	YES	5			CHIP CARRIER		ASYNCHRONOUS				1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel		QUAD		S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		OUTPUTS FROM LAST 7 STAGES AVAILABLE		8.9662 mm	4000/14000/40000
HCF4516BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	TIN LEAD	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e0	8.9662 mm	4000/14000/40000
HCF4060BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	3500000 Hz	CMOS	14	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	740 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	MATTE TIN	QUAD	3.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		OUTPUTS FROM 10 STAGES AVAILABLE; BUILT-IN OSCILLATOR; OSCILLATOR DISABLED BY CLEAR INPUT	e3	8.965 mm	4000/14000/40000
HCF4040BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	3500000 Hz	CMOS	12	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	360 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	MATTE TIN	QUAD	3.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V			e3	8.965 mm	4000/14000/40000
HCF40192BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	500 ns		Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK	e3	8.965 mm	4000/14000/40000
HCF40163BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e3	8.9662 mm	4000/14000/40000
HCF4020BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	3500000 Hz	CMOS	14	NO	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	360 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	MATTE TIN	QUAD	3.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		OUTPUTS FROM 12 STAGES AVAILABLE	e3	8.965 mm	4000/14000/40000
HCF40102BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	700000 Hz	CMOS	8	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	600 ns		Counters	1.27 mm	85 Cel	DOWN	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	.7 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		TCO OUTPUT; RESET TO MAX COUNT	e3	8.965 mm	4000/14000/40000
HCF4518BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	2	3000000 Hz	CMOS	4	NO	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	560 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	4 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		GATED CLOCK; SCHMITT TRIGGER ON CLOCK INPUT	e3	8.965 mm	4000/14000/40000
HCF4017BC1	STMicroelectronics	RING COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2500000 Hz	CMOS	10	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	650 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		JOHNSON COUNTER WITH 10 DECODED OUTPUTS; TCO OUTPUT; GATED CLOCK	e3	8.9662 mm	4000/14000/40000
HCF4089BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	4	YES	5	3/15		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	220 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	MATTE TIN	QUAD	3.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V			e3	8.965 mm	4000/14000/40000
HCF4033BC1	STMicroelectronics	DISPLAY DRIVER COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	5	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	700 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		JOHNSON COUNTER; SCHMITT TRIGGER ON CLOCK INPUT; 7 SEGMENT DISPLAY DRIVERS; RIPPLE BLANKING	e3	8.965 mm	4000/14000/40000
HCF40160BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e3	8.9662 mm	4000/14000/40000
HCF4024BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	3500000 Hz	CMOS	7	NO	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	360 ns		Counters	1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel	MATTE TIN	QUAD	3.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V			e3	8.965 mm	4000/14000/40000
HCF4026BC1	STMicroelectronics	DISPLAY DRIVER COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	5	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	700 ns		Counters	1.27 mm	85 Cel	UP	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	2.5 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		JOHNSON COUNTER; SCHMITT TRIGGER ON CLOCK I/P; 7 SEGMENT DISPLAY DRIVER; DISPLAY ENABLE	e3	8.965 mm	4000/14000/40000
HCF4522BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	4	YES	5	3/18		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	DOWN	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD		S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		TCO OUTPUT; GATED CLOCK	e3	8.965 mm	4000/14000/40000
HCF40103BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	700000 Hz	CMOS	8	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	600 ns		Counters	1.27 mm	85 Cel	DOWN	POSITIVE EDGE	-40 Cel	MATTE TIN	QUAD	.7 MHz	S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		TCO OUTPUT; RESET TO MAX COUNT	e3	8.965 mm	4000/14000/40000
HCF4045BC1	STMicroelectronics	BINARY COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	21	YES				CHIP CARRIER		ASYNCHRONOUS	5.5 ns			1.27 mm	85 Cel			-40 Cel		QUAD	30 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V				8.9662 mm	4000/14000/40000
HCF4510BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	2000000 Hz	CMOS	4	YES	5	5/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	400 ns		Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	TIN LEAD	QUAD	2 MHz	S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		TCO OUTPUT	e0	8.9662 mm	4000/14000/40000
HCF4566BC1	STMicroelectronics	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	2		CMOS	4	YES	5			CHIP CARRIER		ASYNCHRONOUS				1.27 mm	85 Cel	UP	NEGATIVE EDGE	-40 Cel		QUAD		S-PQCC-J20	15 V	4.57 mm	8.965 mm	Not Qualified	3 V		DIVIDE BY 5 OR DIVIDE BY 6 SELECT CONTROL; BUILT-IN MONOSTABLE MULTIVIBRATOR		8.965 mm	4000/14000/40000
HCF40110BC1	STMicroelectronics	DISPLAY DRIVER COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	5	YES	5	3/15	50 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	BIDIRECTIONAL	POSITIVE EDGE	-40 Cel	Matte Tin (Sn)	QUAD		S-PQCC-J20	15 V	4.57 mm	8.9662 mm	Not Qualified	3 V		JOHNSON COUNTER; TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK; 7 SEGMENT DISPLAY DRIVER	e3	8.9662 mm	4000/14000/40000
MM74C945CQH	Maxim Integrated	DISPLAY DRIVER COUNTER	COMMERCIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	16	YES	5	5	50 pF	CHIP CARRIER	LDCC44,.7SQ	ASYNCHRONOUS	800 ns		Counters	1.27 mm	70 Cel	BIDIRECTIONAL	NEGATIVE EDGE	0 Cel	TIN LEAD	QUAD	2 MHz	S-PQCC-J44	6 V	4.57 mm	16.585 mm	Not Qualified	3 V		4 DIGIT COUNTER WITH OUTPUT LATCHES; SCHMITT TRIGGER ON CLOCK INPUT; 7 SEGMENT DISPLAY DRIVERS	e0	16.585 mm	CMOS
MM74C947CQH	Maxim Integrated	DISPLAY DRIVER COUNTER	COMMERCIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS	16	YES	5	5	50 pF	CHIP CARRIER	LDCC44,.7SQ	ASYNCHRONOUS	800 ns		Counters	1.27 mm	70 Cel	BIDIRECTIONAL	NEGATIVE EDGE	0 Cel	TIN LEAD	QUAD	2 MHz	S-PQCC-J44	6 V	4.57 mm	16.585 mm	Not Qualified	3 V		4 DIGIT COUNTER WITH OUTPUT LATCHES; SCHMITT TRIGGER ON CLOCK INPUT; 7 SEGMENT DISPLAY DRIVERS	e0	16.585 mm	CMOS

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.