MAXIM MAX3301E, MAX3302E Technical data

General Description

The MAX3301E/MAX3302E fully integrated USB On-the­Go (OTG) transceivers and charge pumps allow mobile
devices such as PDAs, cellular phones, and digital
cameras to interface directly with USB peripherals and
each other without the need of a host PC. Use the
MAX3301E/MAX3302E with an embedded USB host to
directly connect to peripherals such as printers or
external hard drives.

The MAX3301E/MAX3302E integrate a USB OTG trans­ceiver, a V

BUS

charge pump, a linear regulator, and an

I

2

C-compatible, 2-wire serial interface. An internal level
shifter allows the MAX3301E/MAX3302E to interface
with +1.65V to +3.6V logic supply voltages. The
MAX3301E/MAX3302E’s OTG-compliant charge pump
operates with +3V to +4.5V input supply voltages, and
supplies an OTG-compatible output on V

BUS

while

sourcing more than 8mA of output current.
The MAX3301E/MAX3302E enable USB OTG communi-

cation from highly integrated digital devices that cannot
supply or tolerate the +5V V

BUS

levels that USB OTG
requires. The device supports USB OTG session-request
protocol (SRP) and host-negotiation protocol (HNP).

The MAX3301E/MAX3302E provide built-in ±15kV elec­trostatic-discharge (ESD) protection for the V

BUS

, ID_IN,
D+, and D- terminals. The MAX3301E/MAX3302E are
available in 25-bump chip-scale (UCSP™), 25-bump
WLP package, 28-pin TQFN, and 32-pin TQFN pack­ages and operate over the extended -40°C to +85°C
temperature range.

Applications

Mobile Phones Digital Cameras
PDAs MP3 Players

Features

o USB 2.0-Compliant Full-/Low-Speed OTG

Transceivers

o Ideal for USB On-the-Go, Embedded Host, or

Peripheral Devices

o ±15kV ESD Protection on ID_IN, V

BUS

, D+, and D-

Terminals

o Charge Pump for V

BUS

Signaling and Operation

Down to 3V

o Internal V

BUS

and ID Comparators

o Internal Switchable Pullup and Pulldown

Resistors for Host/Peripheral Functionality

o I

2

C Bus Interface with Command and Status

Registers

o Linear Regulator Powers Internal Circuitry and

D+/D- Pullup Resistors

o Support SRP and HNP

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-3275; Rev 3; 10/07

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

Note: All devices specified over the -40°C to +85°C operating

range.

‡

UCSP bumps are in a 5 x 5 array. The UCSP package size is

2.5mm x 2.5mm x 0.62mm. Requires solder temperature profile
described in the Absolute Maximum Ratings section. UCSP reli­ability is integrally linked to the user’s assembly methods, circuit
board material and environment. See the UCSP Applications
Information section of this data sheet for more information.

*

Future product—contact factory for availability.

**

EP = Exposed paddle.

T = Tape and reel.

+

Denotes a lead-free package.

Selector Guide

†

The MAX3301E powers up in its lowest power state and the

MAX3302E powers up in the operational, VP/VM USB mode.

Pin Configurations appear at end of data sheet.

I2C ADDRESSES FOR

†

PART POWER-UP STATE

Shutdown (sdwn = 1,

MAX3301E

MAX3302E

bit 0 of special­function register 2)

Operating (sdwn = 1,
bit 0 of special­function register 2)

SPECIAL-FUNCTION

REGISTER 2

16h, 17h

10h, 11h, and 16h, 17h

PACKAGE

PART

MAX3301EEBA-T 2.5 x 2.5 25 UCSP

MAX3301EETJ 5 x 5 32 TQFN-EP** T3255-4

MAX3302EEBA-T* 2.5 x 2.5 25 UCSP

MAX3302EETI 4 x 4 28 TQFN-EP** T2844-1

MAX3302EEWA+T 2.54 x 2.54 25 WLP W252A2-1

SIZE

(mm)

PIN­PACKAGE

‡

‡

PKG

CODE

B25-1

B25-1

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +3V to +4.5V, VL= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

CC

= +3.7V, VL= +2.5V, TA= +25°C.) (Note 2)

Note 1: The UCSP package is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the
device can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom­mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow. Preheating is
required. Hand or wave soldering is not allowed.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

All voltages are referenced to GND.
V

CC

, VL.....................................................................-0.3V to +6V

TRM (regulator off or supplied by V

BUS

) ..-0.3V to (V

BUS

+ 0.3V)

TRM (regulator supplied by V

CC

)...............-0.3V to (VCC+ 0.3V)

D+, D- (transmitter tri-stated) ...................................-0.3V to +6V

D+, D- (transmitter functional)....................-0.3V to (V

CC

+ 0.3V)

V

BUS

.........................................................................-0.3V to +6V

ID_IN, SCL, SDA.......................................................-0.3V to +6V

INT, SPD, RESET, ADD, OE/INT, RCV, VP,

VM, SUS, DAT_VP, SE0_VM ......................-0.3V to (V

L

+ 0.3V)

C+.............................................................-0.3V to (V

BUS

+ 0.3V)

C-................................................................-0.3V to (V

CC

+ 0.3V)

Short-Circuit Duration, V

BUS

to GND .........................Continuous

Continuous Power Dissipation (T

A

= +70°C)

25-Bump WLP (derate 12.2mW/°C above +70°C).......976mW

25-Bump UCSP (derate 12.2mW/°C above +70°C) ....976mW

32-Pin TQFN (5mm x 5mm x 0.8mm) (derate 21.3mW/°C

above +70°C).........................................................1702mW

28-Pin TQFN (4mm x 4mm x 0.8mm) (derate 20.8mW/°C

above +70°C).........................................................1666mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Bump Reflow Temperature (Note 1)

Infrared (15s) ...............................................................+200°C

Vapor Phase (20s) .......................................................+215°C

)

)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

TRM Output Voltage V

Logic Supply Voltage V

VL Supply Current I

VCC Operating Supply Current I

CC

TRM

L

VL

CC

VCC Supply Current During Full­Speed Idle

VCC Shutdown Supply Current I

VCC Interrupt Shutdown Supply
Current

CC(SHDN

I

CC(ISHDN

VCC Suspend Supply Current U SB suspend mode, ID _IN unconnected or hig h 170 500 µA

LOGIC I/O

RC V , D AT_V P , S E 0_V M , INT,
OE/INT, V P , V M Outp ut H i g h

V

OH

V ol tag e

3.0 4.5 V

3.0 3.6 V

1.65 3.60 V

I2C interface in steady state 5 µA

USB normal mode, CL = 50pF, device
switching at full speed

V

VBUS_DRV

V

VBUS_DRV

= 1, I

= 0 1.4 2

VBUS

= 0, D+ = high, D- = low 0.5 0.8

10 mA

3.5 10 µA

ID_IN unconnected or high 20 30 µA

I

= 1mA (sourcing) V L - 0.4 V

OUT

mA

RCV, DAT_VP, SE0_VM, INT,
OE/INT, VP, VM Output Low

V

OL

I

= 1mA (sinking) 0.4 V

OUT

Voltage

OE/INT, SPD, SUS, RESET,
DAT_VP, SE0_VM Input High

V

IH

2/3 x V

L

Voltage

V

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +3V to +4.5V, VL= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

CC

= +3.7V, VL= +2.5V, TA= +25°C.) (Note 2)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

OE/INT, SPD, SUS, RESET
DAT_VP, SE0_VM Input Low

V

IL

0.4 V

Voltage

ADD Input High Voltage V

ADD Input Low Voltage V

IHA

ILA

2/3 x V

L

1/3 x V

V

V

L

Input Leakage Current ±1µA

TRANSCEIVER SPECIFICATIONS

Differential Receiver Input
Sensitivity

Differential Receiver Common­Mode Voltage

Single-Ended Receiver Input Low
Voltage

Single-Ended Receiver Input
High Voltage

V

ILD

V

IHD

- VD-| 0.2 V

|V

D+

0.8 2.5 V

D+, D- 0.8 V

D+, D- 2.0 V

S i ng l e- E nd ed Recei ver H yster esi s 0.2 V

S i ng l e- E nd ed Outp ut Low V ol tag eV

S i ng l e- E nd ed Outp ut H i g h V ol tag eV

OLD

OHD

D+, D-, RL = 1.5kΩ from D+ or D- to 3.6V 0.3 V

D+, D-, RL = 15kΩ from D+ or D- to GND 2.8 3.6 V

Off-State Leakage Current D+, D- ±1µA

Driver Output Impedance

ESD PROTECTION (V

BUS

, ID_IN, D+, D-)

D+, D-, not
including R

EXT High steady-state drive 2 13

Low steady-state drive 2 13

Ω

Human Body Model ±15 kV

IEC 61000-4-2 Air-Gap Discharge ±10 kV

IEC 61000-4-2 Contact Discharge ±6kV

THERMAL SHUTDOWN

Thermal Shutdown Low-to-High +160

Thermal Shutdown High-to-Low +150

o

C

o

C

CHARGE-PUMP SPECIFICATIONS (vbus_drv = 1)

V

Output Voltage V

BUS

V

Output Current I

BUS

V

Output Ripple I

BUS

BUS

VBUS

3V < V

VBUS

< 4.5V, C

C C

= 8mA, C

V BUS

= 10µF, I

= 8m A 4.80 5.25 V

V BUS

8mA

= 10µF 100 mV

VBUS

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

4 _______________________________________________________________________________________

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +3V to +4.5V, VL= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

CC

= +3.7V, VL= +2.5V, TA= +25°C.) (Note 2)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

Switching Frequency f

V

Leakage Voltage V

BUS

V

Rise Time

BUS

V

Pulldown Resistance

BUS

V

Pullup Resistance

BUS

V

Input Impedance Z

BUS

SW

INVBUS

COMPARATOR SPECIFICATIONS

V

V al i d C om p ar ator Thr eshol d V

B U S

V

V al i d C om p ar ator H yster esi sV

B U S

Session-Valid Comparator
Threshold

Session-End Comparator
Threshold

TH-VBUS

HYS-VBUS

V

TH-

SESS_VLD

V

TH-

SESS_END

dp_hi Comparator Threshold 0.8 1.3 2.0 V

dm_hi Comparator Threshold 0.8 1.3 2.0 V

cr_int Pulse Width 750 ns

cr_int Comparator Threshold 0.4 0.5 0.6 V

ID_IN SPECIFICATIONS

ID_IN Input Voltage for Car Kit

ID_IN Input Voltage for A Device

ID_IN Input Voltage for B Device

ID_IN Input Impedance Z

ID_IN

ID_IN Input Leakage Current ID_IN = V

ID_IN Pulldown Resistance id_pulldown = 1 150 300 Ω

TERMINATING RESISTOR SPECIFICATIONS (D+, D-)

D+ Pulldown Resistor dp_pulldown = 1 14.25 15 15.75 kΩ

D- Pulldown Resistor dm_pulldown = 1 14.25 15 15.75 kΩ

D+ Pullup Resistor dp_pullup = 1 1.425 1.5 1.575 kΩ

D- Pullup Resistor dm_pullup = 1 1.425 1.5 1.575 kΩ

VBUS_DRV

C

= 10µF, I

VBUS

from 0 to +4.4V

V

VBUS_DISCHRG

V

VBUS_CHRG

V

VBUS_CHRG

V

VBUS_DISCHRG

V

VBUS_DISCHRG

V

VBUS_CHRG

390 kHz

= 0 0.2 V

= 8mA, measured

VBUS

= 1, V

= 0

= 1, V

= 0

= 0, V

= 0

VBUS_DRV

VBUS_DRV

VBUS_DRV

= 0,

= 0,

= 0,

3.8 5 6.5 kΩ

650 930 1250 Ω

40 70 100 kΩ

100 ms

4.4 4.6 4.8 V

50 mV

0.8 1.4 2.0 V

0.2 0.5 0.8 V

0.2 x
V

CC

0.8 x
V

CC

0.1 x
V

CC

0.9 x
V

CC

70 100 130 kΩ

CC

-1 +1 µA

V

V

V

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

_______________________________________________________________________________________ 5

TIMING CHARACTERISTICS

(VCC= +3V to +4.5V, VL= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

CC

= +3.7V, VL= +2.5V, TA= +25°C.) (Note 2)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

TRANSMITTER CHARACTERISTICS (FULL-SPEED MODE)

D+, D- Rise Time t

D+, D- Fall Time t

R

F

Rise-/Fall-Time Matching Figures 2 and 5 (Note 3) 90 110 %

Output-Signal Crossover Voltage V

CRS_F

TRANSMITTER CHARACTERISTICS (LOW-SPEED MODE)

D+, D- Rise Time t

D+, D- Fall Time t

R

F

Rise-/Fall-Time Matching Figures 2 and 5 80 125 %

Output-Signal Crossover Voltage V

CRS_L

TRANSMITTER TIMING (FULL-SPEED MODE)

t

Driver Propagation Delay
(DAT_VP, SE0_VM to D+, D-)

Driver Disable Delay t

Driver Enable Delay t

PLH

t

PHL

PDZ

PZD

TRANSMITTER TIMING (LOW-SPEED MODE) (Low-speed delay timing is dominated by the slow rise and fall times.)

SPEED-INDEPENDENT TIMING CHARACTERISTICS

Receiver Disable Delay t

Receiver Enable Delay t

PVZ

PZV

D+ Pullup Assertion Time During HNP 3 µs

RCV Rise Time t

RCV Fall Time t

Differential-Receiver Propagation
Delay

Single-Ended-Receiver
Propagation Delay

t

PHL

t

PHL

R

F

, t

PLH

, t

PLH

Interrupt Propagation Delay 100 µs

V

BUS_CHRG

Propagation Delay Dominated by the V

Time to Exit Shutdown 1µs

Shutdown Delay 10 µs

Figures 2 and 5 4 20 ns

Figures 2 and 5 4 20 ns

Figures 2, 6, and 7 (Note 3) 1.3 2.0 V

Figures 2 and 5 75 300 ns

Figures 2 and 5 75 300 ns

Figures 2, 6, and 7 1.3 2.0 V

Low-to-high, Figures 2 and 6 25

High-to-low, Figures 2 and 6 25

Figures 1 and 8 25 ns

Figures 2 and 8 25 ns

Figure 4 30 ns

Figure 4 30 ns

Figures 3 and 5, CL = 15pF 4 ns

Figures 3 and 5, CL = 15pF 4 ns

Figures 3 and 10, |D+ - D-| to DAT_VP 30

Figures 3 and 9, |D+ - D-| to RCV 30

Figures 3 and 9, D+, D- to DAT_VP,
SE0_VM

rise time 0.2 µs

BUS

30 ns

ns

ns

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

6 _______________________________________________________________________________________

I2C-/SMBus™-COMPATIBLE TIMING SPECIFICATIONS

(VCC= +3V to +4.5V, VL= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

CC

= +3.7V, VL= +2.5V, TA= +25°C.) (Note 2)

Note 2: Parameters are 100% production tested at +25°C. Limits over temperature are guaranteed by design.
Note 3: Guaranteed by bench characterization. Limits are not production tested.
Note 4: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL’s falling

edge.

Note 5: C

B

is the total capacitance of one bus line in pF, tested with CB= 400pF.

Note 6: Input filters on SDA, SCL, and ADD suppress noise spikes of less than 50ns.

SMBus is a trademark of Intel Corporation.

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

Serial Clock Frequency f

Bus-Free Time Between Stop and
Start Conditions

Start-Condition Hold Time t

Stop-Condition Setup Time t

Clock Low Period t

Clock High Period t

Data Setup Time t

Data Hold Time t

Rise Time of SDA and SCL t

Fall Time of SDA and SCL t

Capacitive Load for each Bus
Line

SCL

t

BUF

HD_STA

SU_STO

LOW

HIGH

SU_DAT

HD_DAT

R

F

C

B

SDA AND SCL I/O STAGE CHARACTERISTICS

Input-Voltage Low V

Input-Voltage High V

SDA Output-Voltage Low V

Pulse Width of Suppressed Spike t

IL

IH

OL

SP

400 kHz

1.3 µs

0.6 µs

0.6 µs

1.3 µs

0.6 µs

100 ns

(Note 4) 0.9 µs

20 +

(Note 5)

0.1 x
C

B

300 ns

Measured from 0.3 x VL to 0.7 x VL (Note 5) 300 ns

400 pF

0.3 x
V

L

0.7 x
V

L

I

= 3mA 0.4 V

SINK

(Note 6) 50 ns

V

V

DRIVER PROPAGATION DELAY HIGH-TO-LOW

(FULL-SPEED MODE)

MAX3301E toc09

4ns/div

D+
1V/div

D­1V/div

DAT_VP
1V/div

DRIVER PROPAGATION DELAY LOW-TO-HIGH

(LOW-SPEED MODE)

MAX3301E toc08

100ns/div

D­1V/div

D+
1V/div

DAT_VP
1V/div

DRIVER PROPAGATION DELAY HIGH-TO-LOW

(LOW-SPEED MODE)

MAX3301E toc07

100ns/div

D+
1V/div

D­1V/div

DAT_VP
1V/div

TIME TO EXIT SHUTDOWN

MAX3301E toc05

4μs/div

D­1V/div

D+
1V/div

SCL
1V/div

V

BUS

DURING SRP

MAX3301E toc06

20ns/div

V

BUS

1V/div

V

BUS

1V/div

C

VBUS

> 96μF

C

VBUS

> 13μF

TIME TO ENTER SHUTDOWN

MAX3301E toc04

100ns/div

D+
1V/div

D­1V/div

SCL
2V/div

V

BUS

OUTPUT VOLTAGE

vs. INPUT VOLTAGE (V

CC

)

MAX3301E toc03

INPUT VOLTAGE (VCC) (V)

V

BUS

OUTPUT VOLTAGE (V)

5.55.04.54.03.53.0

4.75

5.00

5.25

5.50

5.75

4.50

2.5 6.0

LINEAR REGULATOR
POWERED BY V

CC

I

VBUS

= 8mA

I

VBUS

= 0

V

BUS

OUTPUT VOLTAGE

vs. V

BUS

OUTPUT CURRENT

MAX3301E toc02

V

BUS

OUTPUT CURRENT (mA)

V

BUS

OUTPUT VOLTAGE (V)

252015105

4.25

4.50

4.75

5.00

5.25

5.50

4.00
030

VCC = 3.0V
V

CC

= 4.2V

LINEAR REGULATOR
POWERED BY V

CC

INPUT CURRENT (ICC)

vs. V

BUS

OUTPUT CURRENT

MAX3301E toc01

V

BUS

OUTPUT CURRENT (mA)

INPUT CURRENT (I

CC

) (mA)

161284

10

20

30

40

50

0

020

VCC = 3.3V
V

CC

= 4.2V

LINEAR REGULATOR
POWERED BY V

CC

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

_______________________________________________________________________________________

7

Typical Operating Characteristics

(Typical operating circuit, VCC= +3.7V, VL= +2.5V, C

FLYING

= 100nF, TA= +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. TEMPERATURE

MAX3301E toc15

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

603510-15

0.2

0.4

0.6

0.8

1.0

0

-40 85

V

BUS

OFF

FULL-SPEED IDLE

VCC = 3.3V

VCC = 4.2V

DRIVER DISABLE DELAY

(LOW-SPEED MODE)

MAX3301E toc14

10ns/div

D+
1V/div

D­1V/div

OE/INT
1V/div

DRIVER ENABLE DELAY

(LOW-SPEED MODE)

MAX3301E toc13

100ns/div

D­1V/div

D+
1V/div

CD+ = CD- = 400pF

OE/INT
1V/div

DRIVER DISABLE DELAY

(FULL-SPEED MODE)

MAX3301E toc12

10ns/div

D+
1V/div

D­1V/div

OE/INT
1V/div

DRIVER ENABLE DELAY

(FULL-SPEED MODE)

MAX3301E toc11

10ns/div

D­1V/div

D+
1V/div

OE/INT
1V/div

DRIVER PROPAGATION DELAY LOW-TO-HIGH

(FULL-SPEED MODE)

MAX3301E toc10

4ns/div

D­1V/div

D+
1V/div

DAT_VP
1V/div

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(Typical operating circuit, VCC= +3.7V, VL= +2.5V, C

FLYING

= 100nF, TA= +25°C, unless otherwise noted.)

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

_______________________________________________________________________________________ 9

Pin Description

PIN

MAX3302E

28-PIN TQFN

1 2 D2 DAT_VP

2, 25 3, 29 D1, E3 V

3, 9, 23

4 5 C1 C- Charge-Pump Flying-Capacitor Negative Terminal

5 6 C2 SE0_VM

6, 18 7, 21 B1, C5 GND Ground

7 8 A1 SDA I2C-Compatible Serial Data Interface. Open-drain data input/output.

8 10 B2 SCL I2C-Compatible Serial Clock Input

10 11 A2 OE/INT

11 13 A3 RCV

12 14 B3 SPD

13 15 A4 V

14 16 A5 SUS

MAX3301E

32-PIN TQFN

1, 4, 9, 12, 17,

25, 28

UCSP/

WLP

NAME FUNCTION

System-Side Data Input/Output. DAT_VP is an input if OE/INT is logic 0.
DAT_VP is an output if OE/INT is logic 1. Program the function of DAT_VP
with the dat_se0 bit (bit 2 of control register 1, see Table 7).

Input Power Supply. Connect a +3V to +4.5V supply to VCC and bypass to
GND with a 1µF capacitor. The supply range enables direct powering from

CC

one Li+ battery.

— N.C. No Connection. Not internally connected.

System-Side Data Input/Output. SE0_VM is an input if OE/INT is logic 0.
SE0_VM is an output if OE/INT is logic 1. Program the function of SE0_VM
with the dat_se0 bit (bit 2 of control register 1, see Table 7).

O utp ut E nab l e. O E/INT contr ol s the i np ut or outp ut status of D AT_V P /S E 0_V M
and D + /D - . W hen O E/INT i s l og i c 0, the d evi ce i s i n tr ansm i t m od e. W hen

O E/INT i s l og i c 1, the d evi ce i s i n r ecei ve m od e. When i n susp end m od e,
O E/INT can b e p r og r am m ed to functi on as an i nter r up t outp ut that d etects the

sam e i nter r up ts as

7) enab l es and d i sab l es the i nter r up t ci r cui tr y of O E/INT. The i r q _m od e b i t ( b i t 1
of sp eci al - functi on r eg i ster 2, see Tab l e 15) p r og r am s the outp ut confi g ur ati on
of INT and O E/INT as op en- d r ai n or p ush- p ul l .

D+ and D- Differential Receiver Output. In receive mode (see Table 4), when
D+ is high and D- is low, RCV is high. In receive mode, when D+ is low and
D- is high, RCV is low. RCV is low in suspend mode.

Speed-Selector Input. Connect SPD to GND to select the low-speed data rate
(1.5Mbps). Connect SPD to V
Disable the SPD input by writing a 1 to spd_susp_ctl (bit 1 in special-function
register 1, see Table 14). The speed bit (bit 0 of control register 1, see Table

7) determines the maximum data rate of the MAX3301E/MAX3302E when the
SPD input is disabled.

System-Side Logic-Supply Input. Connect to the system’s logic-level power
supply, +1.65V to +3.6V. This sets the maximum output levels of the logic

L

outputs and the input thresholds of the logic inputs. Bypass to GND with a

0.1µF capacitor.

Active-High Suspend Input. Drive SUS low for normal USB operation. Drive
SUS high to enable suspend mode. RCV asserts low in suspend mode.
Disable the SUS input by writing a 1 to spd_susp_ctl (bit 1 in special-function
register 1, see Table 14). The suspend bit (bit 1 of control register 1, see
Table 7) determines the operating mode of the MAX3301E/MAX3302E when
the SUS input is disabled.

INT. The oe_i nt_en b i t ( b i t 5 of contr ol r eg i ster 1, see Tab l e

to select the full-speed data rate (12Mbps).

L

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

10 ______________________________________________________________________________________

Pin Description (continued)

Test Circuits and Timing Diagrams

Figure 1. Load for Disable Time Measurement

Figure 2. Load for Enable Time, Transmitter Propagation Delay,
and Transmitter Rise/Fall Times

PIN

MAX3302E

28-PIN TQFN

MAX3301E

32-PIN TQFN

UCSP/

WLP

15 18 B4 INT

NAME FUNCTION

Active-Low Interrupt Source. Program the INT output as push-pull or open-
drain with the irq_mode bit (bit 1 of special-function register 2, see Tables 15
and 16).

16 19 B5 RESET

Active-Low Reset Input. Drive RESET low to asynchronously reset the
MAX3301E/MAX3302E.

17 20 C3 ADD I2C-Interface Address Selection Input. (See Table 5.)

19 22 C4 ID_IN

20 23 D5 D-

21 24 E5 D+

22 26 D4 VM

ID Input. ID_IN is internally pulled up to V
ID bits 3 and 5 of the interrupt source register (see Table 10).

USB Differential Data Input/Output. Connect D- to the D- terminal of the USB
connector through a 27.4Ω ±1% series resistor.

USB Differential Data Input/Output. Connect D+ to the D+ terminal of the USB
connector through a 27.4Ω ±1% series resistor.

Single-Ended Receiver Output. VM functions as a receiver output in all
operating modes. VM duplicates D-.

USB Transceiver Regulated Output Voltage. TRM provides a regulated 3.3V
output. Bypass TRM to GND with a 1µF ceramic capacitor installed as close
to the device as possible. TRM normally derives power from V

24 27 E4 TRM

provides power to internal circuitry and provides the pullup voltage for the
internal USB pullup resistor. Do not use TRM to power external circuitry. The
reg_sel bit (bit 3 of special-function register 2, see Table 15 and Table 16)
controls the TRM power source with software.

26 30 D3 VP

Single-Ended Receiver Output. VP functions as a receiver output in all
operating modes. VP duplicates D+.

USB Bus Power. Use V

27 31 E2 V

to power the internal linear regulator. Bits 5 to 7 of control register 2 (see

BUS

Table 8) control the charging and discharging functions of V

28 32 E1 C+ Charge-Pump Flying-Capacitor Positive Terminal

EP EP — EP Exposed Paddle. Connect EP to GND or leave unconnected.

. The state of ID_IN determines

CC

. TRM

CC

as an output to power the USB bus, or as an input

BUS

.

BUS

TEST POINT

27.4Ω 220Ω

DUT

D+/D-

C

LOAD FOR DISABLE TIME (D+/D-) MEASUREMENT
V = 0 FOR t
V = V
C
C

L

.

PHZ

FOR t

TRM

= 50pF FOR FULL SPEED.

L

= 200pF TO 600pF FOR LOW SPEED.

L

V

.

PLZ

27.4Ω

DUT

D+/D-

15kΩ

TEST POINT

LOAD FOR

1) ENABLE TIME (D+/D-) MEASUREMENT

2) DAT_VP/SEO_VM TO D+/D- PROPAGATION DELAY

3) D+/D- RISE/FALL TIMES
= 50pF FOR FULL SPEED.

C

C

L

L

= 200pF TO 600pF FOR LOW SPEED.

C

L

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

______________________________________________________________________________________ 11

Test Circuits and Timing Diagrams (continued)

Figure 5. Rise and Fall Times

Figure 6. Timing of DAT_VP, SE0_VM to D+, D- in VP_VM
Mode (dat_se0 = 0)

Figure 7. Timing of DAT_VP, SE0_VM to D+/D- in DAT_SE0
Mode (dat_se0 = 1)

Figure 8. Enable and Disable Timing

Figure 9. D+/D- to RCV, DAT_VP, SE0_VM Propagation Delays
(VP_VM Mode)

Figure 10. D+/D- to DAT_VP, SE0_VM Propagation Delays
(DAT_SE0 Mode)

Figure 3. Load for Receiver Propagation Delay and Receiver
Rise/Fall Times

Figure 4. Load for DAT_VP, SE0_VM Enable/Disable Time
Measurements

TEST POINT

LOAD FOR

DUT

RCV, VP, VM,
DAT_VP,
SEO_VM

V

V

DAT_VP

SE0_VM

1) D+/D- TO RCV/VP/VM/DAT_VP/SEO_VM PROPAGATION DELAYS

2) RCV/VP/VM/DAT_VP/SEO_VM RISE/FALL TIMES (C

C

L

TEST POINT

DUT

DAT_VP
SEO_VM

OH

OL

270Ω

V = 2/3 x V

t

R

t

PHL

t

F

t

PLH

90%

10%

= 15pF)

L

L

V

L

VL

OE/INT

0V

V

OH

/ 2 VL

t

PZD

/ 2

t

PDZ

- 0.3V

V

OHD

D+ OR D-

V

+ 0.3V

V

OL

OLD

D+

D-

RCV

DAT_VP

SE0_VM

D+/D- RISE/FALL TIMES ≤ 8ns, VL = 1.8V, 2.5V, OR 3.3V

t

PHL

t

PHL

t

PLH

3V

0V

t

PLH

V

L

VL / 2

0V

t

PLH

V

L

V

/ 2

L

0V

t

PHL

V

L

/ 2

V

L

0V

D+

V

OHD

V

, V

CRS_F

D-

V

OLD

CRS_L

V

CRS_F

, V

CRS_L

DAT_VP

SE0_VM

D+

V

D-

V

OHD

OLD

t

PHL

V

CRS_F

, V

t

CRS_L

PLH

V

CRS_F

, V

CRS_L

D+

D-

t

DAT_VP

SE0_VM

D+/D- RISE/FALL TIMES ≤ 8ns, VL = 1.8V, 2.5V, OR 3.3V

PHL

t

PLH

3V

0V

V

L

VL / 2

0V

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

12 ______________________________________________________________________________________

Block Diagram

Figure 11. Block Diagram

ADD

INT

RESET

SCL

SDA

SERIAL

CONTROLLER

DAT_VP

SE0_VM

OE/INT

VP

VM

RCV

V

GND

SPD

CC

V

L

POWER
BLOCK

LEVEL

TRANSLATOR

ID

DETECTOR

V

BUS

CHARGE PUMP

V

BUS

COMPARATORS

LINEAR

REGULATOR

PULLUP/PULLDOWN

RESISTORS

CAR KIT INTERRUPT

DETECTOR

SE
D+

SE
D-

DIFF

TX

DIFF

RX

ID_IN

C+
C-

V

BUS

TRM

D+

D-

SUS

MAX3301E
MAX3302E