ATM/SONET/SDH SUPPORT CIRCUIT ATM/SONET/SDH Circuits 957

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Part	Manufacturer	Telecom IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Applications	Surface Mount	No. of Functions	No. of Channels	Technology	Nominal Negative Supply Voltage	Maximum Supply Current	Nominal Supply Voltage	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Seated Height	Width	Qualification	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length
LMK04100SQE	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04102SQE/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04110SQX	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04100SQX/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04131SQX	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04101SQ	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04102SQ/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04111SQE/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04110SQE/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04133SQX/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04133SQ	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04101SQE/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04100SQE/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04102SQX/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04101SQ/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04110SQ/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04131SQX/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04133SQE	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04111SQE	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
LMK04131SQ/NOPB	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HQCCN	SQUARE	PLASTIC/EPOXY	SDH; SONET	YES	1	2				3.3 V		CHIP CARRIER, HEAT SINK/SLUG	LCC48,.28SQ,20		.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N48	3	.8 mm	7 mm		e3	30	260	7 mm
LMK04100SQ	Texas Instruments	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	48	HVQCCN	SQUARE	UNSPECIFIED		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel		QUAD	S-XQCC-N48		.8 mm	7 mm					7 mm
HMC984LP4E	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	24	HVQCCN	SQUARE	PLASTIC/EPOXY		YES	1		BICMOS			3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N24	1	1 mm	4 mm		e3	30	260	4 mm
AD9550BCPZ-REEL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	SDH; SONET	YES	1		CMOS		185 mA	3.3 V	3.3	CHIP CARRIER	LCC32,.2SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N32	3	.8 mm	5 mm	Not Qualified	e3	30	260	5 mm
HMC-C062	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	OTHER	UNSPECIFIED			RECTANGULAR	UNSPECIFIED		NO	1			-3.3 V				MICROELECTRONIC ASSEMBLY				70 Cel	-40 Cel	GOLD OVER NICKEL	UNSPECIFIED	R-XXMA-X				Not Qualified	e4
AD807A-155BRZRL	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	MATTE TIN	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm	Not Qualified	e3	30	260	9.9 mm
HMC984LP4ETR	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	24	HVQCCN	SQUARE	PLASTIC/EPOXY		YES	1		BICMOS			3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N24	1	1 mm	4 mm		e3	30	260	4 mm
AD807A-155BR	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	TIN LEAD	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm	Not Qualified	e0		240	9.9 mm
AD807A-155BRZ	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	MATTE TIN	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm	Not Qualified	e3	30	260	9.9 mm
HMC-C065	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	OTHER	UNSPECIFIED	10		RECTANGULAR	UNSPECIFIED		NO	1			-3.3 V				MICROELECTRONIC ASSEMBLY				70 Cel	-40 Cel	GOLD OVER NICKEL	QUAD	R-XQMA-X10				Not Qualified	e4
AD807A-155BRRL	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	TIN LEAD	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm	Not Qualified	e0		240	9.9 mm
HMC1033LP6GE	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	40	HVQCCN	SQUARE	PLASTIC/EPOXY		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N40	1	.9 mm	6 mm		e3	30	260	6 mm
AD9553BCPZ-REEL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	SDH; SONET	YES	1		CMOS		.185 mA	3.3 V	3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC32,.2SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N32	3	.8 mm	5 mm	Not Qualified	e3	30	260	5 mm
AD807-155BR-REEL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1					5 V		SMALL OUTLINE			1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16		1.75 mm	3.9 mm	Not Qualified				9.9 mm
AD9553BCPZ	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	SDH; SONET	YES	1		CMOS		.185 mA	3.3 V	3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC32,.2SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N32	3	.8 mm	5 mm	Not Qualified	e3	30	260	5 mm
AD9554-1BCPZ-REEL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	56	HVQCCN	SQUARE	UNSPECIFIED		YES	1					1.5 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N56	3	.8 mm	8 mm		e3	30	260	8 mm
AD9554BCPZ-REEL	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	72	HVQCCN	SQUARE	UNSPECIFIED		YES	1					1.5 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N72	3	1 mm	10 mm		e3			10 mm
AD9554-1BCPZ	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	56	HVQCCN	SQUARE	UNSPECIFIED		YES	1					1.5 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N56	3	.8 mm	8 mm		e3	30	260	8 mm
AD9552BCPZ	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	SDH; SONET	YES	1		CMOS		.169 mA	3.3 V	3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC32,.2SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N32	3	1 mm	5 mm	Not Qualified	e3	30	260	5 mm
AD9550BCPZ	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	32	HVQCCN	SQUARE	UNSPECIFIED	SDH; SONET	YES	1		CMOS		185 mA	3.3 V	3.3	CHIP CARRIER	LCC32,.2SQ,20	Other Telecom ICs	.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N32	3	.8 mm	5 mm	Not Qualified	e3	30	260	5 mm
HMC-C060	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	OTHER	UNSPECIFIED	10		RECTANGULAR	UNSPECIFIED		NO	1			-3.3 V				MICROELECTRONIC ASSEMBLY				70 Cel	-40 Cel	GOLD OVER NICKEL	QUAD	R-XQMA-X10				Not Qualified	e4
AD807-155BR	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	TIN LEAD	DUAL	R-PDSO-G16		1.75 mm	3.9 mm	Not Qualified	e0			9.9 mm
AD807-155BR-REEL	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1					5 V		SMALL OUTLINE			1.27 mm	85 Cel	-40 Cel		DUAL	R-PDSO-G16		1.75 mm	3.9 mm	Not Qualified				9.9 mm
AD9554BCPZ-REEL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	72	HVQCCN	SQUARE	UNSPECIFIED		YES	1					1.5 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-XQCC-N72	3	1 mm	10 mm		e3	30	260	10 mm
HMC-C064	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	OTHER	UNSPECIFIED	10		RECTANGULAR	UNSPECIFIED		NO	1			-3.3 V				MICROELECTRONIC ASSEMBLY				70 Cel	-40 Cel	GOLD OVER NICKEL	QUAD	R-XQMA-X10				Not Qualified	e4
AD60003RSZ24RL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY		YES	1			-5.2 V		5 V		SMALL OUTLINE			1.27 mm	85 Cel	-40 Cel	MATTE TIN	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm		e3		260	9.9 mm
AD807A-155BRZRL7	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	SDH; SONET	YES	1		BIPOLAR		.0395 mA	5 V	5	SMALL OUTLINE	SOP16,.25	ATM/SONET/SDH ICs	1.27 mm	85 Cel	-40 Cel	MATTE TIN	DUAL	R-PDSO-G16	1	1.75 mm	3.9 mm	Not Qualified	e3	30	260	9.9 mm
HMC1035LP6GETR	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	40	HVQCCN	SQUARE	PLASTIC/EPOXY		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N40	1	.9 mm	6 mm		e3	30	260	6 mm
HMC1035LP6GE	Analog Devices	ATM/SONET/SDH SUPPORT CIRCUIT	INDUSTRIAL	NO LEAD	40	HVQCCN	SQUARE	PLASTIC/EPOXY		YES	1					3.3 V		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	85 Cel	-40 Cel	MATTE TIN	QUAD	S-PQCC-N40	1	.9 mm	6 mm		e3			6 mm

ATM/SONET/SDH Circuits

ATM (Asynchronous Transfer Mode), SONET (Synchronous Optical Network), and SDH (Synchronous Digital Hierarchy) circuits are high-speed communication technologies used in telecommunications networks.

ATM is a cell-based network technology that enables high-speed data transfer, video and voice communication. It divides data into fixed-size cells and sends them across the network using time-division multiplexing (TDM).

SONET and SDH are both standard protocols for optical telecommunications transport. They use synchronous timing signals to enable high-speed communication over fiber optic networks. SONET is used primarily in North America, while SDH is used primarily in Europe and other regions.

ATM, SONET, and SDH circuits offer several advantages over other communication technologies. They provide high-speed communication with low latency, allowing for efficient data transfer and real-time voice and video communication. They also provide a high level of reliability and fault tolerance, making them ideal for use in mission-critical applications such as banking, healthcare, and defense.

However, these circuits also require specialized hardware and software, and can be more expensive to implement and maintain than other communication technologies. They also require a high level of expertise to configure and manage.