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TUSB6020

USB 2.0 HIGH-SPEED ON-THE-GO DUAL-ROLE CONTROLLER

SCPS170E – JANUARY 2007 – REVISED MARCH 2008

TERMINAL FUNCTIONS

TERMINAL

RESET

TYPE

I/O

DESCRIPTION

STATE

NAME

ZQE NO.

PFC NO.

1.5V_SWEN

G2

18

LVCMOS

O

0

Switch enable for 1.5-V LDO for VBAT/VBUS switch

Switch enable for 3.3-V CP/LDO for VBAT/VBUS

3.3V_SWEN

G3

19

LVCMOS

O

0

switch

LVCMOS

19.2-MHz system clock in. Connect directly to ground if

CLKIN

A5

71

I

In

not used.

CPEN

H2

22

LVCMOS

O

0

5-V power distribution switch enable

DM

E2

10

USB

I/O

–

USB differential pair

DP

D1

9

USB

I/O

–

USB differential pair

GPIO0

H4

26

LVCMOS

I/O

In with pullup

GPIO 0

GPIO1

D5

68

LVCMOS

I/O

In with pullup

GPIO 1

GPIO2

B6

66

LVCMOS

I/O

In with pullup

GPIO 2

GPIO3

E6

54

LVCMOS

I/O

In with pullup

GPIO 3

GPIO4

C4

79

LVCMOS

I/O

In with pullup

GPIO 4

GPIO5

C9

55

LVCMOS

I

In with pullup

GPIO 5

GPIO 6. Input clock source select at reset.

GPIO6

F5

27

LVCMOS

I/O

In with pullup

GPIO6 = HIGH, CLKIN is reference clock.

GPIO6 = LOW, XI is reference clock.

GPIO 7. Must be pulled low for proper operation. It is

GPIO7

B2

2

LVCMOS

I/O

In with pullup

recommended to tie this signal directly to GND.

Indicates default master for OTG. For more

ID

F2

15

USB

I

–

information, see On-the-Go Supplement to the USB

Specification, Revision 1.2.

High-precision external resistor used for calibration

R1

C2

5

Bias

I

–

(R1 value: 10.7 k

Ω ±1%)

RSTn

H1

20

LVCMOS

I

In with pullup

Reset active low

A8, B7,

64, 65,

B8, B9,

62, 58,

C6, C7,

63, 60,

Reserved, must be pulled low by individual pulldown

RSVD

–

–

–

C8, D6,

57, 59,

resistors. A 1-k

Ω value is recommended.

D8, E7,

53, 50,

G4, J5

23, 31

G5, H5,

29, 30,

RSVD – NC

–

–

–

Reserved, should be left unconnected

J4, F6

28, 32

SLEEP

H3

24

LVCMOS

O

0

OTG sleep

Test mode. Under normal operation, this signal should

TEST

D4

80

LVCMOS

I

–

be tied directly to GND.

Charged, discharged, and monitored for OTG host

negotiation protocol and session request protocol.

VBUS

F3

16

USB

I

–

External power distribution switch provides up to 500

mA.

A1, A9,

1, 25,

VDD15

B3, C5,

56, 61,

Supply

–

–

Digital core power supply, 1.5 V

D7, J3

72, 77

A7, B5,

21, 49,

VDD18

Supply

–

–

I/O power supply, 1.8 V

E8, J1

67, 70

VDDA1P5

E3

11

Supply

–

–

1.5-V analog supply

VDDA3P3

C1

7

Supply

–

–

3.3-V analog supply

VDDCM1P5

D2

6

Supply

–

–

1.5-V PLL supply

VDDD1P5

F1

14

Supply

–

–

1.5-V digital supply

F8, G6,

33, 39,

VDDS3P3

Supply

–

–

VLYNQ supply, 3.3 V

J9

44

(1)

Failsafe means that CLKIN can toggle when VDD18 is not present without damaging the part.

Copyright © 2007–2008, Texas Instruments Incorporated

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