TFQFP Bus Controllers 39

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Part	Manufacturer	Peripheral IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Maximum Supply Voltage	Address Bus Width	DAC Channels	Bit Size	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Minimum Supply Voltage	Maximum Operating Temperature	Maximum Data Transfer Rate	Minimum Operating Temperature	Terminal Finish	ADC Channels	Terminal Position	DMA Channels	Maximum Seated Height	Width	Additional Features	External Data Bus Width	Maximum Clock Frequency	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Technology	Maximum Supply Current	Nominal Supply Voltage	PWM Channels	Sub-Category	ROM Programmability	Bus Compatibility	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Speed	Drive Interface Standard	JESD-609 Code	No. of I/O Lines
MAX3421EEHJ+T	Analog Devices	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	32	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0			1.5/3.3,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP32,.28SQ	3 V	85 Cel	12 MBps	-40 Cel	Matte Tin (Sn) - annealed		QUAD		1.2 mm	5 mm		0	12 MHz	30	260	5 mm	BICMOS	45 mA	3.3 V		Bus Controllers			.5 mm	S-PQFP-G32	1	Not Qualified			e3
MAX3421EEHJ+TG2C	Maxim Integrated	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	32	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0				FLATPACK, THIN PROFILE, FINE PITCH		3 V	85 Cel	1.5 MBps	-40 Cel	MATTE TIN		QUAD		1.2 mm	5 mm		0		30	260	5 mm	CMOS		3.3 V				USB	.5 mm	S-PQFP-G32	1				e3
MAX3421EEHJ+	Analog Devices	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	32	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0			1.5/3.3,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP32,.28SQ	3 V	85 Cel	12 MBps	-40 Cel	Matte Tin (Sn) - annealed		QUAD		1.2 mm	5 mm		0	12 MHz	30	260	5 mm	BICMOS	45 mA	3.3 V		Bus Controllers			.5 mm	S-PQFP-G32	1	Not Qualified			e3
MAX3421EETJ+T	Analog Devices	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	32	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0			3.3	FLATPACK, THIN PROFILE, FINE PITCH	LCC32,.2SQ,20	3 V	85 Cel	12 MBps	-40 Cel	Matte Tin (Sn) - annealed		QUAD		1.2 mm	5 mm		0	12 MHz	30	260	5 mm	BICMOS	45 mA	3.3 V		Bus Controllers			.5 mm	S-PQFP-G32	1	Not Qualified			e3
UPD720114GA-YEU-AT	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	OTHER	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.46 V					FLATPACK, THIN PROFILE, FINE PITCH		3.14 V	85 Cel		0 Cel			QUAD		1.2 mm	7 mm			30 MHz			7 mm	CMOS		3.3 V					.5 mm	S-PQFP-G48
TAS1020BPFBR	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	30	260	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48	2	Not Qualified	6 rpm		e4	14
TAS1020BPFBRG4	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	30	260	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48	2	Not Qualified	6 rpm		e4	14
TAS1020BPFBG4	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	30	260	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48	2	Not Qualified	6 rpm		e4	14
TAS1020BPFB	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	30	260	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48	2	Not Qualified	6 rpm		e4	14
TAS1020APFB	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel		NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	NOT SPECIFIED	NOT SPECIFIED	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48		Not Qualified	48 rpm			14
TAS1020APFBG4	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel		NO	QUAD	YES	1.2 mm	7 mm	ADDRESS BUS WIDTH IS 11 AND DATA BUS WIDTH IS 8 IN EXTERNAL MCU MODE	0	6 MHz	NOT SPECIFIED	NOT SPECIFIED	7 mm	CMOS		3.3 V	NO		MROM		.5 mm	S-PQFP-G48		Not Qualified	48 rpm			14
TAS1020PFB	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	11	NO	8		FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel		0 Cel		NO	QUAD	YES	1.2 mm	7 mm		8	6 MHz	NOT SPECIFIED	NOT SPECIFIED	7 mm	CMOS		3.3 V	NO		OTPROM		.5 mm	S-PQFP-G48		Not Qualified	48 rpm			14
TUSB9260PVP	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	64	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V				1.1,1.8,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP64,.35SQ,16	1.045 V	70 Cel	375 MBps	0 Cel	NICKEL PALLADIUM GOLD		QUAD		1.2 mm	7 mm	ALSO OPERATES AT 1.8 V		40 MHz	30	260	7 mm	CMOS	.012 mA	1.1 V		Bus Controllers		ATA; ATAPI	.4 mm	S-PQFP-G64	3	Not Qualified		IEEE 1149.6; IEEE 1149.1	e4
USB2251I-NU-06	Microchip Technology	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V				3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP128,.63SQ,16	3 V	85 Cel	35 MBps	-40 Cel	MATTE TIN		QUAD		1.2 mm	14 mm			24 MHz	30	260	14 mm	CMOS	165 mA	3.3 V		Memory Controllers		I2C; UART; USB	.4 mm	S-PQFP-G128	3	Not Qualified			e3
SII3512ECTU128	Lattice Semiconductor	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.89 V	32			1.8	FLATPACK, THIN PROFILE, FINE PITCH	TQFP128,.63SQ,16	1.71 V	70 Cel	150 MBps	0 Cel			QUAD		1.1 mm	14 mm	SEATED HGT-NOM	32				14 mm	CMOS	330 mA	1.8 V		Bus Controllers		ATA, PCI	.4 mm	S-PQFP-G128		Not Qualified
TSB12LV26PZTG4	Texas Instruments	BUS CONTROLLER, PCI		GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES						FLATPACK, THIN PROFILE, FINE PITCH				132 MBps		NICKEL PALLADIUM GOLD		QUAD		1.2 mm	14 mm			33 MHz	30	260	14 mm	CMOS		3.3 V					.5 mm	S-PQFP-G100	4			IEEE 1394	e4
TSB12LV26IPZT	Texas Instruments	BUS CONTROLLER, PCI		GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V					FLATPACK, THIN PROFILE, FINE PITCH		3 V		132 MBps		NICKEL PALLADIUM GOLD		QUAD		1.2 mm	14 mm	ALSO REQUIRES 5V SUPPLY					14 mm	CMOS		3.3 V					.5 mm	S-PQFP-G100	3	Not Qualified		IEEE 1394	e4
TSB12LV23APZT	Texas Instruments	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	32				FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel	132 MBps	0 Cel			QUAD		1.2 mm	14 mm		32				14 mm	CMOS		3.3 V				CARDBUS; VGA	.5 mm	S-PQFP-G100		Not Qualified		IEEE 1394
TSB12LV26IPZTEP	Texas Instruments	BUS CONTROLLER, PCI	INDUSTRIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V					FLATPACK, THIN PROFILE, FINE PITCH		3 V	85 Cel		-40 Cel			QUAD		1.2 mm	14 mm	ALSO REQUIRES 5V SUPPLY					14 mm	CMOS		3.3 V					.5 mm	S-PQFP-G100		Not Qualified
TSB12LV26PZT	Texas Instruments	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V					FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel	132 MBps	0 Cel	NICKEL PALLADIUM GOLD		QUAD		1.2 mm	14 mm	ALSO REQUIRES 5V SUPPLY			30	260	14 mm	CMOS		3.3 V					.5 mm	S-PQFP-G100	4	Not Qualified		IEEE 1394	e4
TUSB5152PZT	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	12				FLATPACK, THIN PROFILE, FINE PITCH		3 V	70 Cel	1.5 MBps	0 Cel			QUAD		1.05 mm	14 mm		8	6 MHz			14 mm	CMOS		3.3 V					.5 mm	S-PQFP-G100		Not Qualified		IEEE 1284
TUSB2140PAGR	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	64	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V					FLATPACK, THIN PROFILE, FINE PITCH		3 V	85 Cel		-40 Cel			QUAD		1.2 mm	10 mm	IT ALSO REQUIRES 5V SUPPLY		48 MHz			10 mm	CMOS		3.3 V				I2C	.5 mm	S-PQFP-G64		Not Qualified
TUSB2140PAG	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	64	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V				3.3,5	FLATPACK, THIN PROFILE, FINE PITCH	TQFP64,.47SQ	3 V	85 Cel		-40 Cel			QUAD		1.2 mm	10 mm	IT ALSO REQUIRES 5V SUPPLY		48 MHz	NOT SPECIFIED	NOT SPECIFIED	10 mm	CMOS	100 mA	3.3 V		Bus Controllers		I2C	.5 mm	S-PQFP-G64		Not Qualified
TUSB6250PFC	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V				3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	3 V	70 Cel	120 MBps	0 Cel	NICKEL PALLADIUM GOLD		QUAD		1.2 mm	12 mm			24 MHz	30	260	12 mm	CMOS	92 mA	3.3 V		Bus Controllers		ATA; ATAPI	.5 mm	S-PQFP-G80	4	Not Qualified			e4
TUSB6250PFCG4	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V				3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	3 V	70 Cel	60 MBps	0 Cel	NICKEL PALLADIUM GOLD		QUAD		1.2 mm	12 mm		16	24 MHz	30	260	12 mm	CMOS	92 mA	3.3 V		Bus Controllers		ATA; ATAPI	.5 mm	S-PQFP-G80	4	Not Qualified			e4
TUSB5052PZT	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	0			3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP100,.63SQ	3 V	70 Cel	1.5 MBps	0 Cel			QUAD		1.2 mm	14 mm		0	6 MHz			14 mm	CMOS		3.3 V		Bus Controllers			.5 mm	S-PQFP-G100		Not Qualified
TUSB9260PAP	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	64	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V					FLATPACK, THIN PROFILE, FINE PITCH		1.045 V	70 Cel		0 Cel			QUAD		1.2 mm	10 mm	IT ALSO REQUIRES 3.3V AND 1.8 V SUPPLY		40 MHz			10 mm	CMOS		1.1 V					.5 mm	S-PQFP-G64		Not Qualified		IEEE 1149.6; IEEE 1149.1
TUSB6250PFCR	Texas Instruments	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V				3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	3 V	70 Cel		0 Cel			QUAD		1.2 mm	12 mm			24 MHz	NOT SPECIFIED	NOT SPECIFIED	12 mm	CMOS		3.3 V		Bus Controllers		ATA; ATAPI	.5 mm	S-PQFP-G80		Not Qualified
PI7C8952FAEX	Diodes Incorporated	BUS CONTROLLER, PCI	INDUSTRIAL	GULL WING	100	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	32				FLATPACK, THIN PROFILE, FINE PITCH	QFP100,.63SQ,20	3 V	85 Cel	1.875 MBps	-40 Cel			QUAD		1.2 mm	14 mm		32	50 MHz			14 mm	CMOS		3.3 V				VGA	.5 mm	S-PQFP-G100				RS232; RS422; RS485
89HPEB383ZAEMG	Renesas Electronics	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V	32				FLATPACK, THIN PROFILE, FINE PITCH		.945 V	70 Cel	2500 MBps	0 Cel	MATTE TIN		QUAD		1.2 mm	14 mm		32		30	260	14 mm	CMOS		1.05 V				ISA; PCI; SBUS; VGA; USB	.4 mm	S-PQFP-G128	3				e3
89HPEB383ZBEMG	Renesas Electronics	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V	32				FLATPACK, THIN PROFILE, FINE PITCH		.945 V	70 Cel	2500 MBps	0 Cel	MATTE TIN		QUAD		1.2 mm	14 mm		32		30	260	14 mm	CMOS		1.05 V				ISA; PCI; SBUS; VGA; USB	.4 mm	S-PQFP-G128	3				e3
89HPEB383ZAEMG8	Renesas Electronics	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V	32				FLATPACK, THIN PROFILE, FINE PITCH		.945 V	70 Cel	2500 MBps	0 Cel	MATTE TIN		QUAD		1.2 mm	14 mm		32		30	260	14 mm	CMOS		1.05 V				ISA; PCI; SBUS; VGA; USB	.4 mm	S-PQFP-G128	3				e3
89HPEB383ZBEMG8	Renesas Electronics	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	128	TFQFP	SQUARE	PLASTIC/EPOXY	YES	1.155 V	32				FLATPACK, THIN PROFILE, FINE PITCH		.945 V	70 Cel	2500 MBps	0 Cel	MATTE TIN		QUAD		1.2 mm	14 mm		32		30	260	14 mm	CMOS		1.05 V				ISA; PCI; SBUS; VGA; USB	.4 mm	S-PQFP-G128	3				e3
UPD720113GK-9EU	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	2.7 V	0			2.5,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	2.3 V	70 Cel	480 MBps	0 Cel			QUAD		1.2 mm	12 mm	ALSO REQUIRES 3.3V SUPPLY	0	30 MHz			12 mm	MOS		2.5 V		Bus Controllers			.5 mm	S-PQFP-G80		Not Qualified
UPD720112GK-9EU-A	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	2.7 V				2.5,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	2.3 V	70 Cel		0 Cel	TIN BISMUTH		QUAD		1.2 mm	12 mm	ALSO REQUIRES 3.3V SUPPLY		30 MHz			12 mm	MOS		2.5 V		Bus Controllers			.5 mm	S-PQFP-G80		Not Qualified			e6
UPD720150GK-9EU-A	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	INDUSTRIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.6 V	8				FLATPACK, THIN PROFILE, FINE PITCH		2.7 V	85 Cel		-40 Cel	Tin/Bismuth (Sn/Bi)		QUAD		1.2 mm	12 mm		16	30 MHz	10	260	12 mm	CMOS		3.3 V					.5 mm	S-PQFP-G80					e6
UPD720113GK-9EU-A	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	COMMERCIAL	GULL WING	80	TFQFP	SQUARE	PLASTIC/EPOXY	YES	2.7 V	0			2.5,3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP80,.55SQ	2.3 V	70 Cel	480 MBps	0 Cel	TIN BISMUTH		QUAD		1.2 mm	12 mm	ALSO REQUIRES 3.3V SUPPLY	0	30 MHz			12 mm	MOS		2.5 V		Bus Controllers			.5 mm	S-PQFP-G80		Not Qualified			e6
UPD720102GC-YEB-A	Renesas Electronics	BUS CONTROLLER, UNIVERSAL SERIAL BUS	OTHER	GULL WING	120	TFQFP	SQUARE	PLASTIC/EPOXY	YES	3.465 V	32			3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP120,.64SQ,16	3.135 V	70 Cel	480 MBps	-20 Cel	TIN BISMUTH		QUAD		1.2 mm	14 mm		32	48 MHz	60	260	14 mm	CMOS		3.3 V		Bus Controllers		PCI	.4 mm	S-PQFP-G120		Not Qualified			e6
NET2280REV1A-LF	Broadcom	BUS CONTROLLER, PCI	COMMERCIAL	GULL WING	120	TFQFP	SQUARE	PLASTIC/EPOXY	YES	2.7 V	32				FLATPACK, THIN PROFILE, FINE PITCH		2.3 V	70 Cel		0 Cel			QUAD		1.2 mm	14 mm		32			260	14 mm	CMOS		2.5 V				8051; USB	.4 mm	S-PQFP-G120	4

Bus Controllers

Bus controllers are integrated circuits that are used to manage and control the flow of data and control signals between different devices in a computer system. They are commonly used in systems that have multiple buses, such as a memory bus and an I/O bus. Bus controllers ensure that data is transferred efficiently and correctly between different devices in the system.

One of the primary functions of a bus controller is to manage bus arbitration. Bus arbitration is the process of resolving conflicts that occur when two or more devices on the bus attempt to access the bus at the same time. Bus controllers use various algorithms to determine which device has priority access to the bus and when other devices can access it.

Another important function of bus controllers is to manage the transfer of data and control signals between devices on the bus. This involves controlling the timing and synchronization of signals, as well as error detection and correction. Bus controllers also manage other aspects of the bus, such as interrupt handling and power management.