MAXIM MAX3301E, MAX3302E User Manual

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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™), 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

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

Transceivers

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

Peripheral Devices

♦ ±15kV ESD Protection on ID_IN, V

BUS

, D+, and D-

Terminals

♦ Charge Pump for V

BUS

Signaling and Operation

Down to 3V

♦ Internal V

BUS

and ID Comparators

♦ Internal Switchable Pullup and Pulldown

Resistors for Host/Peripheral Functionality

♦ I2C Bus Interface with Command and Status

Registers

♦ Linear Regulator Powers Internal Circuitry and

D+/D- Pullup Resistors

♦ Support SRP and HNP

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3275; Rev 2; 1/06

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

PART

PACKAGE

SIZE

(mm)

PIN­PACKAGE

PKG

CODE

MAX3301EEBA-T

2.5 x 2.5 25 UCSP

‡

B25-1

MAX3301EETJ 5 x 5

T3255-4

MAX3302EEBA-T*

2.5 x 2.5 25 UCSP

‡

B25-1

MAX3302EETI 4 x 4

T2844-1

Purchase of I2C components from Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys a
license under the Philips I2C Patent Rights to use these compo­nents in an I2C system, provided that the system conforms to the
I2C Standard Specification as defined by Philips.
UCSP is a trademark of Maxim Integrated Products, Inc.

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.

PART

POWER-UP STATE

†

I2C ADDRESSES FOR

SPECIAL-FUNCTION

REGISTER 2

MAX3301E

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

16h, 17h

MAX3302E

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

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

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.

32 TQFN-EP**

28 TQFN-EP**

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)

5 x 5 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

CC

3.0 4.5 V

TRM Output Voltage V

TRM

3.0 3.6 V

Logic Supply Voltage V

L

V

VL Supply Current I

VL

I2C interface in steady state 5 µA

VCC Operating Supply Current I

CC

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

10 mA

vbus_drv = 1, I

VBUS

= 0 1.4 2

VCC Supply Current During Full­Speed Idle

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

mA

VCC Shutdown Supply Current

)

3.5 10 µA

VCC Interrupt Shutdown Supply
Current

)

ID_IN floating or high 20 30 µA

VCC Suspend Supply Current USB suspend mode, ID_IN floating or high

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 ol tag e

V

OH

I

OUT

= 1mA (sourcing)

V

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

V

OL

I

OUT

= 1mA (sinking) 0.4 V

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

V

IH

V

I

CC(SHDN

I

CC(ISHDN

1.65 3.60

170

V L - 0.4

2/3 x V

L

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
Voltage

V

IL

0.4 V

ADD Input High Voltage V

IHA

V

ADD Input Low Voltage V

ILA

V

Input Leakage Current ±1µA

TRANSCEIVER SPECIFICATIONS

Differential Receiver Input
Sensitivity

|V

D+

- VD-| 0.2 V

Differential Receiver Common­Mode Voltage

0.8 2.5 V

Single-Ended Receiver Input Low
Voltage

V

ILD

D+, D- 0.8 V

Single-Ended Receiver Input
High Voltage

V

IHD

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 e

V

OLD

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

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

V

OHD

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

Off-State Leakage Current D+, D- ±1µA

213

Driver Output Impedance

D+, D-, not
including R

EXT

213

Ω

ESD PROTECTION (V

BUS

, ID_IN, D+, D-)

Human Body Model

kV

IEC 61000-4-2 Air-Gap Discharge

kV

IEC 61000-4-2 Contact Discharge

±6kV

THERMAL SHUTDOWN

Thermal Shutdown Low-to-High

o

C

Thermal Shutdown High-to-Low

o

C

CHARGE-PUMP SPECIFICATIONS (vbus_drv = 1)

V

BUS

Output Voltage V

BUS

3V < V

C C

< 4.5V, C

V BUS

= 10µF, I

V BUS

= 8m A

V

V

BUS

Output Current I

VBUS

8mA

V

BUS

Output Ripple I

VBUS

= 8mA, C

VBUS

= 10µF

mV

2/3 x V

L

1/3 x V

L

Low steady-state drive

High steady-state drive

±15

±10

+160

+150

4.80 5.25

100

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

SW

kHz

V

BUS

Leakage Voltage vbus_drv = 0 0.2 V

V

BUS

Rise Time

C

VBUS

= 10µF, I

VBUS

= 8mA, measured

from 0 to +4.4V

100 ms

V

BUS

Pulldown Resistance

3.8 5 6.5 kΩ

V

BUS

Pullup Resistance

Ω

V

BUS

Input Impedance

40 70 100 kΩ

COMPARATOR SPECIFICATIONS

V

B U S

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

4.4 4.6 4.8 V

V

B U S

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

50 mV

Session-Valid Comparator
Threshold

V

TH-

0.8 1.4 2.0 V

Session-End Comparator
Threshold

V

TH-

0.2 0.5 0.8 V

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

ns

cr_int Comparator Threshold 0.4 0.5 0.6 V

ID_IN SPECIFICATIONS

ID_IN Input Voltage for Car Kit

0.2 x

0.8 x
V

ID_IN Input Voltage for A Device

0.1 x
V

ID_IN Input Voltage for B Device

0.9 x
V

ID_IN Input Impedance Z

ID_IN

70

130 kΩ

ID_IN Input Leakage Current ID_IN = V

CC

-1 +1 µA

ID_IN Pulldown Resistance id_pulldown = 1

300 Ω

TERMINATING RESISTOR SPECIFICATIONS (D+, D-)

D+ Pulldown Resistor dp_pulldown = 1

15

kΩ

D- Pulldown Resistor dm_pulldown = 1

15

kΩ

D+ Pullup Resistor dp_pullup = 1

1.5

kΩ

D- Pullup Resistor dm_pullup = 1

1.5

kΩ

Z

INVBUS

V

TH-VBUS

V

HYS-VBUS

390

vb us_d ischrg = 1, vb us_d r v = 0, vb us_chr g = 0

vb us_chr g = 1, vb us_d r v = 0, vbus_di schr g = 0 650 930 1250

vb us_d ischrg = 0, vb us_d r v = 0, vb us_chr g = 0

SESS_VLD

SESS_END

750

V

CC

V

CC

100

150

14.25

14.25

1.425

1.425

V

CC

V

CC

15.75

15.75

1.575

1.575

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

CONDITIONS

UNITS

TRANSMITTER CHARACTERISTICS (FULL-SPEED MODE)

D+, D- Rise Time t

R

Figures 2 and 5 4 20 ns

D+, D- Fall Time t

F

Figures 2 and 5 4 20 ns

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

%

Output-Signal Crossover Voltage

V

CRS_F

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

TRANSMITTER CHARACTERISTICS (LOW-SPEED MODE)

D+, D- Rise Time t

R

Figures 2 and 5 75

ns

D+, D- Fall Time t

F

Figures 2 and 5 75

ns

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

%

Output-Signal Crossover Voltage

V

CRS_L

Figures 2, 6, and 7 1.3 2.0 V

TRANSMITTER TIMING (FULL-SPEED MODE)

t

PLH

Low-to-high, Figures 2 and 6 25

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

t

PHL

High-to-low, Figures 2 and 6 25

ns

Driver Disable Delay t

PDZ

Figures 1 and 8 25 ns

Driver Enable Delay t

PZD

Figures 2 and 8 25 ns

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

PVZ

Figure 4 30 ns

Receiver Enable Delay t

PZV

Figure 4 30 ns

D+ Pullup Assertion Time During HNP 3 µs

RCV Rise Time t

R

Figures 3 and 5, CL = 15pF 4 ns

RCV Fall Time t

F

Figures 3 and 5, CL = 15pF 4 ns

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

Differential-Receiver Propagation
Delay

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

ns

Single-Ended-Receiver
Propagation Delay

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

30 ns

Interrupt Propagation Delay

µs

V

BUS_CHRG

Propagation Delay Dominated by the V

BUS

rise time 0.2 µs

Time to Exit Shutdown 1µs

Shutdown Delay 10 µs

SYM B O L

t

PHL

, t

PLH

t

, t

PHL

PLH

MIN TYP MAX

110

300

300

125

100

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)

PARAMETER

CONDITIONS

Serial Clock Frequency f

SCL

400 kHz

Bus-Free Time Between Stop and
Start Conditions

t

BUF

1.3 µs

Start-Condition Hold Time

0.6 µs

Stop-Condition Setup Time

0.6 µs

Clock Low Period t

LOW

1.3 µs

Clock High Period t

HIGH

0.6 µs

Data Setup Time

ns

Data Hold Time

(Note 4) 0.9 µs

Rise Time of SDA and SCL t

R

(Note 5)

0.1 x
C

B

300 ns

Fall Time of SDA and SCL t

F

300 ns

Capacitive Load for each Bus
Line

C

B

400 pF

SDA AND SCL I/O STAGE CHARACTERISTICS

Input-Voltage Low V

IL

0.3 x
V

L

V

Input-Voltage High V

IH

0.7 x
V

L

V

SDA Output-Voltage Low V

OL

I

SINK

= 3mA 0.4 V

Pulse Width of Suppressed Spike

t

SP

(Note 6) 50 ns

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.

SYM B O L

t

HD_STA

t

SU_STO

MIN TYP MAX UNITS

t

SU_DAT

t

HD_DAT

100

20 +

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

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

MAX3301E

FUNCTION

12

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).

2, 25 3, 29

D1,

E3

V

CC

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
one Li+ battery.

3, 9, 23

1, 4, 9, 12, 17,

25, 28

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

45C1C- Charge-Pump Flying-Capacitor Negative Terminal

56

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).

6, 18 7, 21

B1,

GND Ground

78A1SDA I2C-Compatible Serial Data Interface. Open-drain data input/output.

810B2SCL I2C-Compatible Serial Clock Input

10 11 A2

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 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

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 .

11 13 A3 RCV

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.

12 14 B3 SPD

Speed-Selector Input. Connect SPD to GND to select the low-speed data rate
(1.5Mbps). Connect SPD to V

L

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

13 15 A4 V

L

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

0.1µF capacitor.

14 16 A5 SUS

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.

NAME

D2 DAT_VP

C2 SE0_VM

C5

UCSP

32-PIN TQFN

OE/INT

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

10 ______________________________________________________________________________________

Pin Description (continued)

PIN

MAX3302E

28-PIN TQFN

MAX3301E

FUNCTION

15 18 B4 INT

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

16 19 B5

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

17 20

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

19 22

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

20 23

D-

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

21 24 E5 D+

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

22 26

VM

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

24 27 E4 TRM

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

CC

. 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

VP

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

27 31 E2

USB Bus Power. Use V

BUS

as an output to power the USB bus, or as an input
to power the internal linear regulator. Bits 5 to 7 of control register 2 (see
Table 8) control the charging and discharging functions of V

BUS

.

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

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

Test Circuits and Timing Diagrams

DUT

27.4Ω 220Ω

TEST POINT

C

L

V

D+/D-

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

PHZ

.

V = V

TRM

FOR t

PLZ

.

C

L

= 50pF FOR FULL SPEED.

C

L

= 200pF TO 600pF FOR LOW SPEED.

Figure 1. Load for Disable Time Measurement

DUT

27.4Ω

15kΩ

TEST POINT

C

L

D+/D-

LOAD FOR

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

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

3) D+/D- RISE/FALL TIMES
C

L

= 50pF FOR FULL SPEED.

C

L

= 200pF TO 600pF FOR LOW SPEED.

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

NAME

32-PIN TQFN

UCSP

RESET

C3

C4 ID_IN

D5

D4

D3

V

BUS

MAX3301E/MAX3302E

USB On-the-Go Transceivers and Charge Pumps

______________________________________________________________________________________ 11

Test Circuits and Timing Diagrams (continued)

90%

10%

V

OH

V

OL

t

R

t

F

Figure 5. Rise and Fall Times

t

PLH

D+

D-

V

CRS_F

, V

CRS_L

V

OLD

V

OHD

V

CRS_F

, V

CRS_L

DAT_VP

SE0_VM

t

PHL

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

t

PLH

D+

D-

V

CRS_F

, V

CRS_L

V

OLD

V

OHD

V

CRS_F

, V

CRS_L

DAT_VP

SE0_VM

t

PHL

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

t

PDZ

D+ OR D-

V

OL

V

OLD

+ 0.3V

V

OHD

- 0.3V

V

OH

V

L

VL

/ 2 VL

/ 2

0V

t

PZD

OE/INT

Figure 8. Enable and Disable Timing

t

PHL

t

PHL

t

PLH

D+

D-

RCV

DAT_VP

SE0_VM

3V

0V

V

L

V

L

V

L

VL / 2

V

L

/ 2

V

L

/ 2

0V

0V

0V

t

PLH

t

PLH

t

PHL

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

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

t

PHL

D+

D-

DAT_VP

SE0_VM

3V

0V

V

L

VL / 2

0V

t

PLH

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

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

DUT

TEST POINT

C

L

RCV, VP, VM,
DAT_VP,
SEO_VM

LOAD FOR

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

L

= 15pF)

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

DUT

270Ω

TEST POINT

V = 2/3 x V

L

DAT_VP
SEO_VM

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