20 Digital Counters 1,712

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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	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	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
76034012A	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	MIL-STD-883	4		TUBE	5			CHIP CARRIER		SYNCHRONOUS	49 ns	8 Amp		1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel	TIN LEAD	QUAD	25 MHz	S-CQCC-N20	5.25 V	2.03 mm	8.89 mm	Not Qualified	4.75 V	32 mA		e0			8.89 mm	LS
SNJ54LS393FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	2	25000000 Hz	TTL	MIL-PRF-38535	4		TUBE	5	5	15 pF	CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS	60 ns	8 Amp	Counters	1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel	Tin/Lead (Sn/Pb)	QUAD	25 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	26 mA	DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS	e0	NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SNJ54LS697FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	38535Q/M;38534H;883B	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
SNC54LS690J	Texas Instruments	DECADE COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	MIL-STD-883 Class B (Modified)		YES					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
SNJ54HC490FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	2		CMOS	38535Q/M;38534H;883B		NO					CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20				Not Qualified
SNJ54F169FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	38535Q/M;38534H;883B	4	YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD		S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	52 mA	TCO OUTPUT		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	F/FAST
SNJ54ALS568FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		TTL	38535Q/M;38534H;883B		YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		QUAD		S-XQCC-N20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNJ54HC692FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS	38535Q/M;38534H;883B		YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		QUAD		S-XQCC-N20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
M38510/31504B2X	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	MIL-PRF-38535 Class B	4	YES		5			CHIP CARRIER		SYNCHRONOUS	56 ns				125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	22 MHz	S-CQCC-N20	5.5 V			Qualified	4.5 V							LS
SNC54HC190FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS	MIL-STD-883 Class B (Modified)		YES			2/6		CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL			-55 Cel		QUAD		S-XQCC-N20				Not Qualified
SNC54LS699J	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	MIL-STD-883 Class B (Modified)		YES					IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		DUAL		R-XDIP-T20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNC54ALS568AFH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		TTL	MIL-STD-883 Class B (Modified)		YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		QUAD		S-XQCC-N20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNJ54HC393FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	2	21000000 Hz	CMOS	MIL-PRF-38535	4		TUBE	5	2/6	50 pF	CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS	430 ns	5.2 Amp	Counters	1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel	Tin/Lead (Sn/Pb)	QUAD	25 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V	.08 mA		e0	NOT SPECIFIED	NOT SPECIFIED	8.89 mm	HC/UH
SNJ54AS163FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	65000000 Hz	TTL	38535Q/M;38534H;883B	4	YES		5	5	50 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	14 ns	20 Amp	Counters	1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	65 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	53 mA	TCO OUTPUT				8.89 mm	AS
M38510/34301B2X	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	MIL-PRF-38535	4	YES		5			CHIP CARRIER		SYNCHRONOUS	11.5 ns				125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	70 MHz	S-CQCC-N20	5.5 V			Not Qualified	4.5 V							F/FAST
SNC54ALS560FH	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		TTL	MIL-STD-883 Class B (Modified)		YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	UP	3-STATE		-55 Cel		QUAD		S-XQCC-N20				Not Qualified
SNJ54ALS569AJ-00	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL		4	YES		5		50 pF	IN-LINE		SYNCHRONOUS	18 ns			2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		DUAL	25 MHz	R-GDIP-T20	5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	32 mA	TCO OUTPUT; CLOCKED CARRY OUTPUT				24.195 mm	ALS
74ACT11160DWR	Texas Instruments	DECADE COUNTER	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		CMOS		4	YES		5			SMALL OUTLINE		SYNCHRONOUS	12 ns			1.27 mm	85 Cel	UP		POSITIVE EDGE	-40 Cel		DUAL	125 MHz	R-PDSO-G20	5.5 V	2.65 mm	7.5 mm	Not Qualified	4.5 V						12.8 mm	ACT
SNJ54ALS560J	Texas Instruments	DECADE COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	38535Q/M;38534H;883B		YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	UP	3-STATE		-55 Cel		DUAL		R-XDIP-T20				Not Qualified
SNJ54AS163FKR	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	14 ns			1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	65 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	53 mA	TCO OUTPUT				8.89 mm	AS
54F161ALM	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5			CHIP CARRIER		SYNCHRONOUS	11.5 ns			1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	75 MHz	S-CQCC-N20	5.5 V	1.905 mm	8.89 mm		4.5 V						8.89 mm	F/FAST
74ACT11191D	Texas Instruments	BINARY COUNTER	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1		CMOS			YES		5	5		SMALL OUTLINE	SOP20,.4	SYNCHRONOUS			Counters	1.27 mm	85 Cel	BIDIRECTIONAL			-40 Cel		DUAL		R-PDSO-G20				Not Qualified
86009012A	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	UNSPECIFIED	YES	4		CMOS		3	YES		4.5			CHIP CARRIER		ASYNCHRONOUS	315 ns				125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	21 MHz	S-XQCC-N20	6 V				2 V							HC/UH
SNJ54HC4020FK-00	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		14	YES		5		50 pF	CHIP CARRIER		ASYNCHRONOUS	45 ns			1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	19 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V		OUTPUTS FROM 12 STAGES AVAILABLE				8.89 mm	HC/UH
M38510/31503B2A	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	22000000 Hz	TTL	MIL-PRF-38535 Class B	4	YES		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	56 ns	4 Amp	Counters	1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	22 MHz	S-CQCC-N20	5.5 V			Not Qualified	4.5 V	32 mA			NOT SPECIFIED	NOT SPECIFIED		LS
SNC54HC390FH	Texas Instruments		MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	2		CMOS	MIL-STD-883 Class B (Modified)		NO			2/6		CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20				Not Qualified
SNJ54LS190FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	20000000 Hz	TTL	38535Q/M;38534H;883B	4	YES		5	5	15 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	36 ns	4 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	20 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	35 mA	TCO OUTPUT		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SNJ54HC490FK-00	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	2		CMOS		4	YES		5		50 pF	CHIP CARRIER		ASYNCHRONOUS	71 ns			1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	21 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V						8.89 mm	HC/UH
76008012C	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	UNSPECIFIED	YES	1		CMOS	MIL-PRF-38535	4			5			CHIP CARRIER		SYNCHRONOUS	48 ns				125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	25 MHz	S-XQCC-N20	5.5 V				4.5 V							LS
SNJ54HC590AFK-00	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS		8	YES		5		50 pF	CHIP CARRIER		ASYNCHRONOUS	42 ns			1.27 mm	125 Cel	UP	3-STATE	POSITIVE EDGE	-55 Cel		QUAD	13 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V		TCO OUTPUT; REGISTERED OUTPUTS				8.89 mm	HC/UH
SNJ54LS191FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	20000000 Hz	TTL	MIL-PRF-38535	4		TUBE	5	5	15 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	36 ns	16 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel	TIN LEAD	QUAD	20 MHz	S-CQCC-N20	5.25 V	2.03 mm	8.89 mm	Not Qualified	4.75 V	35 mA	TCO OUTPUT	e0			8.89 mm	LS
SNJ54ALS161BFKR	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	MIL-PRF-38535	4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	25 ns			1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	22 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	21 mA	TCO OUTPUT				8.89 mm	ALS
76036012X	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	MIL-STD-883	4	YES		5			CHIP CARRIER		SYNCHRONOUS	68 ns				125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	25 MHz	S-CQCC-N20	5.5 V				4.5 V							LS
SNJ54LV393AFK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	2	35000000 Hz	CMOS	MIL-PRF-38535	4	NO	TUBE	2.5	3.3	50 pF	CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS	32 ns	6 Amp	Counters	1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	105 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	2 V						8.89 mm	LV/LV-A/LVX/H
74AC11191DW	Texas Instruments	BINARY COUNTER	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	100000000 Hz	CMOS		4	YES		5	3.3/5	50 pF	SMALL OUTLINE	SOP20,.4	SYNCHRONOUS	12.7 ns	24 Amp	Counters	1.27 mm	85 Cel	BIDIRECTIONAL		POSITIVE EDGE	-40 Cel		DUAL	100 MHz	R-PDSO-G20	5.5 V	2.65 mm	7.5 mm	Not Qualified	3 V				NOT SPECIFIED	NOT SPECIFIED	12.8 mm	AC
SNC54HC393FK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	2		CMOS	MIL-STD-883 Class B (Modified)		NO			2/6		CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS			Counters	1.27 mm	125 Cel	UP			-55 Cel		QUAD		S-XQCC-N20				Not Qualified
SNJ54F569J	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	38535Q/M;38534H;883B	4	YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel		DUAL		R-GDIP-T20	5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	67 mA	TCO OUTPUT; CLOCKED CARRY OUTPUT		NOT SPECIFIED	NOT SPECIFIED	24.195 mm	F/FAST
SNJ54AS160FKR	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	14 ns			1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	65 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	53 mA	TCO OUTPUT				8.89 mm	AS
SNJ54AS162FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	14 ns			1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	65 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	53 mA	TCO OUTPUT				8.89 mm	AS
SNJ54LS160AFK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	25000000 Hz	TTL	38535Q/M;38534H;883B	4	YES		5	5	15 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	27 ns	4 Amp	Counters	1.27 mm	125 Cel	UP		POSITIVE EDGE	-55 Cel		QUAD	25 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	32 mA	TCO OUTPUT		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SNJ54HC698FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	YES	1		CMOS	38535Q/M;38534H;883B		NO		5	5		CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS			Counters	1.27 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		QUAD		S-XQCC-N20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNC54ALS569AJ	Texas Instruments	BINARY COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	MIL-STD-883 Class B (Modified)		YES		5	5		IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		DUAL		R-XDIP-T20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNJ54HC4040FKR	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		CMOS	MIL-PRF-38535	12	YES		5		50 pF	CHIP CARRIER		ASYNCHRONOUS	225 ns			1.27 mm	125 Cel	UP		NEGATIVE EDGE	-55 Cel		QUAD	22 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V						8.89 mm	HC/UH
SNJ54HC590AFK	Texas Instruments	BINARY COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	13000000 Hz	CMOS	MIL-PRF-38535	8		TUBE	5	2/6	150 pF	CHIP CARRIER	LCC20,.35SQ	ASYNCHRONOUS	447 ns	7.8 Amp	Counters	1.27 mm	125 Cel	UP	3-STATE	POSITIVE EDGE	-55 Cel	TIN LEAD	QUAD	16 MHz	S-CQCC-N20	6 V	2.03 mm	8.89 mm	Not Qualified	2 V	.08 mA	RCO OUTPUT; REGISTERED OUTPUTS	e0			8.89 mm	HC/UH
SNJ54LS192FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	25000000 Hz	TTL	38535Q/M;38534H;883B	4	YES		5	5	15 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	47 ns	4 Amp	Counters	1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	25 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	34 mA	TCO UP AND TCO DOWN OUTPUTS; SEPARATE UP/DOWN CLOCK		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	LS
SNJ54ALS190FKR	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL		4	YES		5		50 pF	CHIP CARRIER		SYNCHRONOUS	26 ns			1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	20 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	22 mA	TCO OUTPUT				8.89 mm	ALS
SNC54LS698J	Texas Instruments	DECADE COUNTER	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	MIL-STD-883 Class B (Modified)		YES					IN-LINE	DIP20,.3	SYNCHRONOUS			Counters	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE		-55 Cel		DUAL		R-XDIP-T20				Not Qualified					NOT SPECIFIED	NOT SPECIFIED
SNJ54AS168FK	Texas Instruments	DECADE COUNTER	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1		TTL	38535Q/M;38534H;883B	4	YES		5		50 pF	CHIP CARRIER	LCC20,.35SQ	SYNCHRONOUS	14 ns		Counters	1.27 mm	125 Cel	BIDIRECTIONAL		POSITIVE EDGE	-55 Cel		QUAD	65 MHz	S-CQCC-N20	5.5 V	2.03 mm	8.89 mm	Not Qualified	4.5 V	63 mA	TCO OUTPUT		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	AS

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.