OTHER Bus Controllers 101

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Part RoHS Manufacturer Peripheral IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Surface Mount Maximum Supply Voltage Screening Level Address Bus Width No. of Bits DAC Channels Bit Size Power Supplies (V) Package Style (Meter) Package Equivalence Code Minimum Supply Voltage Maximum Operating Temperature CPU Family Maximum Data Transfer Rate Minimum Operating Temperature Terminal Finish ADC Channels Terminal Position DMA Channels Maximum Seated Height ROM Words Width Data EEPROM Size Additional Features Peripherals External Data Bus Width Maximum Clock Frequency Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length RAM Bytes Technology Maximum Supply Current Nominal Supply Voltage PWM Channels Sub-Category Connectivity ROM Programmability Bus Compatibility Terminal Pitch JESD-30 Code Moisture Sensitivity Level (MSL) Qualification Speed Drive Interface Standard JESD-609 Code On Chip Program ROM Width No. of I/O Lines

ISP1521BE,551

NXP Semiconductors

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

80

LFQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

FLATPACK, LOW PROFILE, FINE PITCH

3 V

70 Cel

-40 Cel

MATTE TIN

QUAD

1.6 mm

12 mm

ALSO REQUIRES 5V SUPPLY

12 MHz

12 mm

CMOS

3.3 V

.5 mm

S-PQFP-G80

Not Qualified

e3

PI7C8150MA-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150MAE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150ND-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8150BNDE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

3.3

GRID ARRAY

BGA256,16X16,40

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

66 MHz

17 mm

CMOS

510 mA

3.3 V

Bus Controllers

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8152AMAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

160

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

4.1 mm

28 mm

32

66 MHz

28 mm

CMOS

3.3 V

.65 mm

S-PQFP-G160

3

Not Qualified

e3

PI7C8150BND

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

3.3

GRID ARRAY

BGA256,16X16,40

3 V

85 Cel

0 Cel

TIN LEAD

BOTTOM

1.76 mm

17 mm

32

66 MHz

17 mm

CMOS

510 mA

3.3 V

Bus Controllers

1 mm

S-PBGA-B256

1

Not Qualified

e0

PI7C8150BNDE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8154BNAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

304

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

3.3

GRID ARRAY

BGA304,23X23,50

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

2.53 mm

31 mm

32

66 MHz

31 mm

CMOS

417 mA

3.3 V

Bus Controllers

1.27 mm

S-PBGA-B304

3

Not Qualified

e1

PI7C8148BNJ

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

160

LBGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY, LOW PROFILE

BGA160,14X14,40

3 V

85 Cel

0 Cel

BOTTOM

1.4 mm

15 mm

32

15 mm

CMOS

3.3 V

VGA

1 mm

S-PBGA-B160

PI7C8150NDE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8150ANDE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8154BNA-80E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

304

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

2.53 mm

31 mm

32

80 MHz

31 mm

CMOS

3.3 V

1.27 mm

S-PBGA-B304

3

Not Qualified

e1

PI7C8150AMAE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

3.8 mm

28 mm

32

33 MHz

28 mm

CMOS

3.3 V

.5 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8152BMAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

160

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

4.1 mm

28 mm

32

66 MHz

28 mm

CMOS

3.3 V

.65 mm

S-PQFP-G160

3

Not Qualified

e3

PI7C8154ANA-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

304

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

2.53 mm

31 mm

32

33 MHz

31 mm

CMOS

3.3 V

1.27 mm

S-PBGA-B304

3

Not Qualified

e1

PI7C8154ANAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

304

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

3.3

GRID ARRAY

BGA304,23X23,50

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

2.53 mm

31 mm

32

66 MHz

31 mm

CMOS

3.3 V

Bus Controllers

1.27 mm

S-PBGA-B304

3

Not Qualified

e1

PI7C8150BMA-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

3.8 mm

28 mm

32

33 MHz

28 mm

CMOS

3.3 V

.5 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150BND-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8148BNJE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

160

LBGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

3.3

GRID ARRAY, LOW PROFILE

BGA160,14X14,40

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.4 mm

15 mm

32

15 mm

CMOS

3.3 V

Bus Controllers

VGA

1 mm

S-PBGA-B160

3

Not Qualified

e1

PI7C8150ANDE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

66 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8150MAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

1.76 mm

17 mm

32

66 MHz

17 mm

CMOS

3.3 V

1 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150AND-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

33 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

PI7C8150BMAE-33

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

3.8 mm

28 mm

32

33 MHz

28 mm

CMOS

3.3 V

.5 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150AMAE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

3.8 mm

28 mm

32

66 MHz

28 mm

CMOS

3.3 V

.5 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150AMA-33E

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

3.8 mm

28 mm

32

33 MHz

28 mm

CMOS

3.3 V

.5 mm

S-PQFP-G208

3

Not Qualified

e3

PI7C8150NDE

Diodes Incorporated

BUS CONTROLLER, PCI

OTHER

BALL

256

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

GRID ARRAY

3 V

85 Cel

0 Cel

TIN SILVER COPPER

BOTTOM

1.76 mm

17 mm

32

66 MHz

17 mm

CMOS

3.3 V

1 mm

S-PBGA-B256

3

Not Qualified

e1

TC86C001FG

Toshiba

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

144

FQFP

SQUARE

PLASTIC/EPOXY

YES

1.6 V

32

1.5,3.3

FLATPACK, FINE PITCH

QFP144,.87SQ,20

1.4 V

85 Cel

0 Cel

QUAD

1.85 mm

20 mm

32

8.0004 MHz

20 mm

CMOS

1.5 V

Other Microprocessor ICs

PCI; ATA; ATAPI

.5 mm

S-PQFP-G144

Not Qualified

M66592FP

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

64

QFP

SQUARE

PLASTIC/EPOXY

YES

1.65 V

6

1.5,1.8/3.3

FLATPACK

QFP64,.47SQ,20

1.35 V

85 Cel

-20 Cel

QUAD

16

48 MHz

CMOS

1.5 V

Bus Controllers

.5 mm

S-PQFP-G64

Not Qualified

M66592WG

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

BALL

64

LFBGA

SQUARE

PLASTIC/EPOXY

YES

1.65 V

6

1.5,1.8/3.3

GRID ARRAY, LOW PROFILE, FINE PITCH

BGA64,8X8,32

1.35 V

85 Cel

-20 Cel

BOTTOM

1.4 mm

7 mm

16

48 MHz

7 mm

CMOS

1.5 V

Bus Controllers

.8 mm

S-PBGA-B64

Not Qualified

M66591GP#RB1S

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

80

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

7

FLATPACK

3 V

85 Cel

-20 Cel

QUAD

16

48 MHz

CMOS

3.3 V

S-PQFP-G80

M66596WG

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

BALL

64

FBGA

SQUARE

PLASTIC/EPOXY

YES

1.65 V

6

1.5,1.8/3.3

GRID ARRAY, FINE PITCH

BGA64,8X8,32

1.35 V

85 Cel

-20 Cel

BOTTOM

16

48 MHz

CMOS

1.5 V

Bus Controllers

.8 mm

S-PBGA-B64

1

Not Qualified

R8A66593FP

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

80

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

15

3.3

FLATPACK

QFP80,.47SQ,16

3 V

85 Cel

40 MBps

-20 Cel

QUAD

16

48 MHz

CMOS

3.3 V

Bus Controllers

.4 mm

S-PQFP-G80

Not Qualified

M66591GP

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

80

LFQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

7

1.8/3.3,3.3

FLATPACK, LOW PROFILE, FINE PITCH

QFP80,.47SQ,16

3 V

85 Cel

-20 Cel

QUAD

1.7 mm

10 mm

16

48 MHz

10 mm

CMOS

3.3 V

Bus Controllers

.4 mm

S-PQFP-G80

Not Qualified

R8A66597FP#RF1S

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

80

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

7

FLATPACK

3 V

85 Cel

-20 Cel

QUAD

16

CMOS

3.3 V

USB

S-PQFP-G80

M66596FP

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

64

FQFP

SQUARE

PLASTIC/EPOXY

YES

1.65 V

6

1.5,1.8/3.3

FLATPACK, FINE PITCH

QFP64,.47SQ,20

1.35 V

85 Cel

-20 Cel

QUAD

16

48 MHz

CMOS

1.5 V

Bus Controllers

.5 mm

S-PQFP-G64

1

Not Qualified

TSI350-66CQY

Renesas Electronics

BUS CONTROLLER, PCI

OTHER

GULL WING

208

FQFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK, FINE PITCH

3 V

85 Cel

0 Cel

MATTE TIN

QUAD

4.1 mm

28 mm

32

260

28 mm

CMOS

3.3 V

ISA; VGA

.5 mm

S-PQFP-G208

3

e3

TSI352-66CQ

Renesas Electronics

BUS CONTROLLER, PCI

OTHER

GULL WING

160

QFP

SQUARE

PLASTIC/EPOXY

YES

3.6 V

32

FLATPACK

3 V

85 Cel

0 Cel

TIN LEAD

QUAD

4.1 mm

28 mm

32

66 MHz

28 mm

CMOS

650 mA

3.3 V

PCI

.65 mm

S-PQFP-G160

e0

R8A66593BG

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

BALL

81

BGA

SQUARE

PLASTIC/EPOXY

YES

3.6 V

15

3.3

GRID ARRAY

BGA81,9X9,20

3 V

85 Cel

40 MBps

-20 Cel

BOTTOM

16

48 MHz

CMOS

3.3 V

Bus Controllers

.5 mm

S-PBGA-B81

Not Qualified

UPD720102F1-CA7-A

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

BALL

121

TFBGA

SQUARE

PLASTIC/EPOXY

YES

3.465 V

32

GRID ARRAY, THIN PROFILE, FINE PITCH

3.135 V

70 Cel

-20 Cel

BOTTOM

1.09 mm

8 mm

32

48 MHz

8 mm

CMOS

3.3 V

.65 mm

S-PBGA-B121

M66291HP

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

NO LEAD

52

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

3.45 V

6

3.3,3/5

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC52,.28SQ,16

3.15 V

85 Cel

-20 Cel

QUAD

1 mm

7 mm

16

48 MHz

7 mm

CMOS

30 mA

3.3 V

Bus Controllers

.4 mm

S-PQCC-N52

Not Qualified

UPD720231AK8-614-BAE-A

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

NO LEAD

48

QCCN

SQUARE

UNSPECIFIED

YES

CHIP CARRIER

85 Cel

625 MBps

0 Cel

QUAD

ALSO REQUIRES 5V POWER SUPPLY

NOT SPECIFIED

NOT SPECIFIED

CMOS

3.3 V

ATA; ATAPI; SPI

S-XQCC-N48

UPD720231AK8-612-BAE-A

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

NO LEAD

48

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

5.25 V

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

4 V

85 Cel

0 Cel

QUAD

.9 mm

6 mm

6 mm

CMOS

5 V

ATA; ATA-8

.4 mm

S-PQCC-N48

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

UPD720114K9-4E4-A

Renesas Electronics

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

NO LEAD

40

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

3.46 V

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

3.14 V

85 Cel

0 Cel

QUAD

.9 mm

6 mm

30 MHz

6 mm

CMOS

3.3 V

.5 mm

S-PQCC-N40

USS-820TD-DB

Broadcom

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

5

FLATPACK, LOW PROFILE, FINE PITCH

3.135 V

85 Cel

0 Cel

TIN LEAD

QUAD

1.6 mm

7 mm

8

12.024 MHz

30

240

7 mm

CMOS

3.3 V

.5 mm

S-PQFP-G48

Not Qualified

e0

L-USS820TD-DB

Broadcom

BUS CONTROLLER, UNIVERSAL SERIAL BUS

OTHER

GULL WING

48

LFQFP

SQUARE

PLASTIC/EPOXY

YES

3.465 V

5

FLATPACK, LOW PROFILE, FINE PITCH

3.135 V

85 Cel

0 Cel

MATTE TIN

QUAD

1.6 mm

7 mm

8

12.024 MHz

40

260

7 mm

CMOS

3.3 V

.5 mm

S-PQFP-G48

Not Qualified

e3

L-USS820D-DB

Broadcom

OTHER

GULL WING

48

QFP

SQUARE

PLASTIC/EPOXY

YES

3.3

FLATPACK

QFP48,.35SQ,20

85 Cel

0 Cel

QUAD

CMOS

30 mA

3.3 V

Bus Controllers

.5 mm

S-PQFP-G48

Not Qualified

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.