20 Digital Counters 1,712

Reset All

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	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	Output Characteristics	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)	Maximum Power Supply Current (ICC)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Family
SN74F568DWR	Texas Instruments	DECADE COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL		4	YES		5		50 pF	SMALL OUTLINE		SYNCHRONOUS	13 ns			1.27 mm	70 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	0 Cel		DUAL	90 MHz	R-PDSO-G20		5.5 V	2.65 mm	7.5 mm	Not Qualified	4.5 V	67 mA	TCO OUTPUT; CLOCKED CARRY OUTPUT				12.8 mm	F/FAST
SN74LS698FN	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL		4	YES		5		45 pF	CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS	25 ns		Counters	1.27 mm	70 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	0 Cel		QUAD		S-PQCC-J20		5.25 V	4.57 mm	8.9662 mm	Not Qualified	4.75 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	8.9662 mm	LS
SN54HC191FK-00	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	58 ns			1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	14 MHz	S-CQCC-N20		6 V	2.03 mm	8.89 mm	Not Qualified	2 V		TCO OUTPUT				8.89 mm	HC/UH
SN74HC699J	Texas Instruments	BINARY COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-XDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN54LS699FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		45 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	40 ns		Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		QUAD	20 MHz	S-CQCC-N20		5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SN74ALS569NP1	Texas Instruments	BINARY COUNTER	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-PDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74HC692N	Texas Instruments	DECADE COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-PDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74HC699N3	Texas Instruments	BINARY COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-PDIP-T20										NOT SPECIFIED	NOT SPECIFIED
SN74ALS569ADW	Texas Instruments	BINARY COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL		4	YES	TUBE	5	5	50 pF	SMALL OUTLINE	SOP20,.4	SYNCHRONOUS	16 ns	24 Amp	Counters	1.27 mm	70 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	0 Cel		DUAL	30 MHz	R-PDSO-G20		5.5 V	2.65 mm	7.5 mm	Not Qualified	4.5 V	32 mA	TCO OUTPUT; CLOCKED CARRY OUTPUT		NOT SPECIFIED	NOT SPECIFIED	12.8 mm	ALS
SN54HC160FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20					Not Qualified
SN74HC160FHP4	Texas Instruments	DECADE COUNTER	INDUSTRIAL	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	UP			-40 Cel		QUAD		S-XQCC-N20
SN54AS163FH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1	65000000 Hz	TTL			YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS		20 Amp	Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20					Not Qualified		53 mA
SN54HC161FH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74ALS169AFN3	Texas Instruments	BINARY COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	70 Cel	BIDIRECTIONAL			0 Cel		QUAD		S-PQCC-J20
SN74HC690JP4	Texas Instruments	DECADE COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-XDIP-T20										NOT SPECIFIED	NOT SPECIFIED
SN74LS290FN	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	2		TTL		3	YES		5	5		CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS	35 ns		Counters	1.27 mm	70 Cel	UP		NEGATIVE EDGE	0 Cel		QUAD	16 MHz	S-PQCC-J20		5.25 V	4.57 mm	8.9662 mm	Not Qualified	4.75 V	15 mA	DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS		NOT SPECIFIED	NOT SPECIFIED	8.9662 mm	LS
SN54LS696FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		45 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	40 ns		Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		QUAD	20 MHz	S-CQCC-N20		5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SN54AS162FH-00	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5			CHIP CARRIER		SYNCHRONOUS				1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD		S-CQCC-N20		5.5 V	2.54 mm	8.89 mm	Not Qualified	4.5 V		TCO OUTPUT				8.89 mm	AS
SN74LS698JP4	Texas Instruments	DECADE COUNTER	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL			YES					IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-XDIP-T20										NOT SPECIFIED	NOT SPECIFIED
SN74LS698DW3	Texas Instruments	DECADE COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL			YES					SMALL OUTLINE	SOP20,.4	SYNCHRONOUS			Counters	1.27 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-PDSO-G20										NOT SPECIFIED	NOT SPECIFIED
SN74HC7022FH	Texas Instruments	DIVIDE BY 8 COUNTER	INDUSTRIAL	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			NO					CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	UP			-40 Cel		QUAD		S-XQCC-N20					Not Qualified
SN74LS162AFN3	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	70 Cel	UP			0 Cel		QUAD		S-PQCC-J20
SN74HC160FN	Texas Instruments	DECADE COUNTER	INDUSTRIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		CMOS			YES			2/6		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	UP			-40 Cel		QUAD		S-PQCC-J20					Not Qualified
5962-89603012X	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-STD-883	8	YES		5			CHIP CARRIER		ASYNCHRONOUS	447 ns			1.27 mm	125 Cel	UP	3-STATE	POSITIVE EDGE	-55 Cel		QUAD	24 MHz	S-CQCC-N20		6 V	2.03 mm	8.89 mm	Qualified	2 V				NOT SPECIFIED	NOT SPECIFIED	8.89 mm	HC/UH
SN74LS692DW	Texas Instruments	DECADE COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL		4	YES		5		45 pF	SMALL OUTLINE	SOP20,.4	SYNCHRONOUS	25 ns		Counters	1.27 mm	70 Cel	UP	3-STATE	POSITIVE EDGE	0 Cel		DUAL		R-PDSO-G20		5.25 V	2.65 mm	7.5 mm	Not Qualified	4.75 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	12.8 mm	LS
SN54ALS569AFK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5	5	50 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	21 ns		Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		QUAD	22 MHz	S-CQCC-N20		5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	32 mA	TCO OUTPUT; CLOCKED CARRY OUTPUT		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	ALS
SN54HC390FKR	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	4		CMOS		3	YES		5		50 pF	CHIP CARRIER		ASYNCHRONOUS	55 ns			1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	20 MHz	S-CQCC-N20		6 V	2.03 mm	8.89 mm	Not Qualified	2 V		DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS				8.89 mm	HC/UH
SN74HC160FH4	Texas Instruments	DECADE COUNTER	INDUSTRIAL	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	85 Cel	UP			-40 Cel		QUAD		S-XQCC-N20
SN74AS169FN	Texas Instruments	BINARY COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	75000000 Hz	TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS		20 Amp	Counters	1.27 mm	70 Cel	BIDIRECTIONAL			0 Cel		QUAD		S-PQCC-J20					Not Qualified		63 mA
SN74HC190FHP4	Texas Instruments	DECADE COUNTER	INDUSTRIAL	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	85 Cel	BIDIRECTIONAL			-40 Cel		QUAD		S-XQCC-N20
SN74ALS193FN	Texas Instruments	BINARY COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	70 Cel	BIDIRECTIONAL			0 Cel		QUAD		S-PQCC-J20					Not Qualified
SN74ALS568NP1	Texas Instruments	DECADE COUNTER	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-PDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN54HC190FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL			-55 Cel		QUAD		S-XQCC-N20					Not Qualified
SN74HC699N	Texas Instruments	BINARY COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-PDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74LS697N3	Texas Instruments	BINARY COUNTER	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL			YES					IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-PDIP-T20										NOT SPECIFIED	NOT SPECIFIED
SN54HC593J	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS			NO			2/6		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	UP	3-STATE		-55 Cel		DUAL		R-XDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74LS197FN3	Texas Instruments	BINARY COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	ASYNCHRONOUS			Counters	1.27 mm	70 Cel	UP			0 Cel		QUAD		S-PQCC-J20
SN74LS690DW3	Texas Instruments	DECADE COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL			YES					SMALL OUTLINE	SOP20,.4	SYNCHRONOUS			Counters	1.27 mm	70 Cel	UP	3-STATE		0 Cel		DUAL		R-PDSO-G20										NOT SPECIFIED	NOT SPECIFIED
SN74ALS560AFN	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES		5	5		CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	70 Cel	UP	3-STATE		0 Cel		QUAD		S-PQCC-J20					Not Qualified
SN74AS168FN	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL			YES					CHIP CARRIER	LDCC20,.4SQ	SYNCHRONOUS			Counters	1.27 mm	70 Cel	BIDIRECTIONAL			0 Cel		QUAD		S-PQCC-J20					Not Qualified
SN74AS168FN-00	Texas Instruments	DECADE COUNTER	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1		TTL		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	6 ns			1.27 mm	70 Cel	BIDIRECTIONAL		POSITIVE EDGE	0 Cel		QUAD		S-PQCC-J20		5.5 V	4.57 mm	8.9662 mm	Not Qualified	4.5 V		TCO OUTPUT				8.9662 mm	AS
SN54HC593FH	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			NO			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP	3-STATE		-55 Cel		QUAD		S-XQCC-N20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74LS593DWE4	Texas Instruments	BINARY COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL		8	YES	TUBE	5		45 pF	SMALL OUTLINE	SOP20,.4	ASYNCHRONOUS	39 ns		Counters	1.27 mm	70 Cel	UP	3-STATE	POSITIVE EDGE	0 Cel	NICKEL PALLADIUM GOLD	DUAL	20 MHz	R-PDSO-G20	1	5.25 V	2.65 mm	7.5 mm	Not Qualified	4.75 V	80 mA	TCO OUTPUT; REGISTERED INPUTS; MULTIPLEXED I/O	e4	30	260	12.8 mm	LS
SN54LS699J	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1		TTL		4	YES		5		45 pF	IN-LINE	DIP20,.3	SYNCHRONOUS	40 ns		Counters	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		DUAL	20 MHz	R-CDIP-T20		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	24.195 mm	LS
SN74HC698J4	Texas Instruments	DECADE COUNTER	INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS			NO		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	85 Cel	BIDIRECTIONAL	3-STATE		-40 Cel		DUAL		R-XDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN74LS699DW	Texas Instruments	BINARY COUNTER	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		TTL		4	YES		5		45 pF	SMALL OUTLINE	SOP20,.4	SYNCHRONOUS	40 ns		Counters	1.27 mm	70 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	0 Cel		DUAL	20 MHz	R-PDSO-G20		5.25 V	2.65 mm	7.5 mm	Not Qualified	4.75 V	70 mA	REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	12.8 mm	LS
SN74ALS569N1	Texas Instruments	BINARY COUNTER	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL			YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE		0 Cel		DUAL		R-PDIP-T20					Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SN54HC192FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS			YES			2/6		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL			-55 Cel		QUAD		S-XQCC-N20					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.