MAX3420EECJ Maxim Integrated, MAX3420EECJ Datasheet

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MAX3420EECJ

Manufacturer Part Number
MAX3420EECJ
Description
Peripheral Drivers & Components - PCIs
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX3420EECJ

Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TQFP-32
Minimum Operating Temperature
- 40 C

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Price
Part Number:
MAX3420EECJ+
Manufacturer:
MAXIM
Quantity:
1 001
Part Number:
MAX3420EECJ+
Manufacturer:
Maxim Integrated
Quantity:
10 000
Part Number:
MAX3420EECJ+T
Manufacturer:
Maxim Integrated
Quantity:
10 000
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
The MAX3420E contains the digital logic and analog
circuitry necessary to implement a full-speed USB
peripheral compliant to USB specification rev 2.0. A
built-in full-speed transceiver features ±15kV ESD pro-
tection and programmable USB connect and discon-
nect. An internal serial-interface engine (SIE) handles
low-level USB protocol details such as error checking
and bus retries. The MAX3420E operates using a regis-
ter set accessed by an SPI™ interface that operates up
to 26MHz. Any SPI master (microprocessor, ASIC, DSP,
etc.) can add USB functionality using the simple 3- or
4-wire SPI interface.
Internal level translators allow the SPI interface to run at
a system voltage between 1.71V and 3.6V. USB timed
operations are done inside the MAX3420E with inter-
rupts provided at completion so an SPI master does not
need timers to meet USB timing requirements. The
MAX3420E includes four general-purpose inputs and
outputs so any microprocessor that uses I/O pins to
implement the SPI interface can reclaim the I/O pins
and gain additional ones.
The MAX3420E operates over the extended -40°C to
+85°C temperature range and is available in a 32-pin
LQFP package (7mm x 7mm) and a space-saving 24-
pin TQFN package (4mm x 4mm).
+Denotes a lead(Pb)-free/RoHS-compliant package.
*
/V denotes an automotive qualified part.
SPI is a trademark of Motorola, Inc.
MAX3420EETG+
MAX3420EECJ+
MAX3420EECJ/V+
EP = Exposed pad.
Cell Phones
PC Peripherals
Microprocessors and
DSPs
Custom USB Devices
Cameras
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Functional Diagrams
Ordering Information
General Description
Desktop Routers
PLCs
Set-Top Boxes
PDAs
MP3 Players
Instrumentation
Applications
PIN-PACKAGE
24 TQFN-EP*
32 LQFP
32 LQFP
USB Peripheral Controller
♦ Microprocessor-Independent USB Solution
♦ Complies with USB Specification Revision 2.0
♦ Integrated Full-Speed USB Transceiver
♦ Firmware/Hardware Control of an Internal D+
♦ Programmable 3- or 4-Wire 26MHz SPI Interface
♦ Level Translators and V
♦ Internal Comparator Detects V
♦ ESD Protection on D+, D-, and VBCOMP
♦ Interrupt Output Pin (Level or Programmable
♦ Intelligent USB Serial-Interface Engine (SIE)
♦ Built-In Endpoint FIFOs
♦ Double-Buffered Data Endpoints Increase
♦ SETUP Data Has Its Own 8-Byte FIFO, Simplifying
♦ Four General-Purpose Inputs and Four General-
♦ Space-Saving LQFP and TQFN Packages
(Full-Speed Operation)
Pullup Resistor
System Interface Voltage
Self-Powered Applications
Edge) Allows Polled or Interrupt-Driven SPI
Interface
Throughput by Allowing the SPI Master to
Transfer Data Concurrently with USB Transfers
Over the Same Endpoint
Firmware
Purpose Outputs
Automatically Handles USB Flow Control and
Double Buffering
Handles Low-Level USB Signaling Details
Contains Timers for USB Time-Sensitive
Operations So SPI Master Does Not Need to
Time Events
EP0: CONTROL (64 Bytes)
EP1: OUT, Bulk or Interrupt, 2 x 64 Bytes
(Double-Buffered)
EP2: IN, Bulk or Interrupt, 2 x 64 Bytes
(Double-Buffered)
EP3: IN, Bulk or Interrupt (64 Bytes)
with SPI Interface
L
MAX3420E
Input Allow Independent
BUS
19-3781; Rev 3; 12/10
for
Features

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MAX3420EECJ Summary of contents

Page 1

... Instrumentation Ordering Information PART TEMP RANGE MAX3420EETG+ -40°C to +85°C MAX3420EECJ+ -40°C to +85°C MAX3420EECJ/V+ -40°C to +85°C +Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. /V denotes an automotive qualified part. Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. SPI is a trademark of Motorola, Inc. ...

Page 2

... INT O MICRO L at any frequency up to 26MHz. Therefore, the designer A ASIC is free to choose the interface operating frequency and T DSP to make opto-isolator choices optimized for cost or per- O SCLK R formance. MOSI S SS LOCAL GND pin and internal level translators allow Maxim Integrated ...

Page 3

... V CC 1.5kΩ D+ ESD PROTECTION D- ESD VBCOMP PROTECTION MAX3420E GND Maxim Integrated USB Peripheral Controller with SPI Interface V RES L INTERNAL RESET LOGIC FULL-SPEED USB TRANSCEIVER ENDPOINT BUFFERS VBUS_DET VBUS COMP GPIN VBUS_DET OPERATE BUSACT SOF MUX GPX GPIN3 ...

Page 4

... The SPI master controls the GPOUT3–GPOUT0 L to the system’s 1.71V to 3. ground with a 0.1μF capacitor as close L . The SPI master controls the GPOUT3–GPOUT0 not present. The register file is not MOSI can also be configured as a bidirectional ±1% series ±1% series Maxim Integrated ...

Page 5

... Figure 4. SPI Command Byte b7 b6 SUSPIRQ URESIRQ SUDAVIRQ Figure 5. USB Status Bits Clocked Out as First Byte of Every Transfer (Full-Duplex Mode Only) Maxim Integrated USB Peripheral Controller INPUT/ OUTPUT USB Transceiver Power-Supply Input. Connect V supply. Bypass V to ground with a 1.0μF ceramic capacitor as close to the ...

Page 6

... TLE P 0IN 0BAV OKIE Maxim Integrated ...

Page 7

... GPIN0 21 MAX3420E GPIN1 22 GPIN2 23 *EP GPIN3 TQFN *CONNECT EXPOSED PAD TO GND. Maxim Integrated USB Peripheral Controller TOP VIEW GPX 11 MOSI 10 MISO 9 SS GPIN0 8 SCLK GPIN1 7 RES GPIN2 GPIN3 5 6 MAX3420E with SPI Interface Pin Configurations ...

Page 8

... LOAD ≥ 2. -20mA, V LOAD GPIN | +70° +3.3V UNITS MIN TYP MAX 3.0 3.3 3.6 V 1. 100 µ µ 0. 0.4 L 0.6 V 0 µ kΩ 0.2 V 0.8 2.5 V Maxim Integrated ...

Page 9

... XI Input High Voltage XI Input Low Voltage XI Input Current XI, XO Input Capacitance VBCOMP COMPARATOR SPECIFICATIONS VBCOMP Comparator Threshold VBCOMP Comparator Hysteresis VBCOMP Comparator Input Impedance Maxim Integrated USB Peripheral Controller = unless otherwise noted. Typical values are MIN MAX SYMBOL CONDITIONS ...

Page 10

... PWRDOWN = OSCOKIRQ (Note 5) = +25°C, and guaranteed by correlation over temperature +3.3V MIN MIN TYP TYP MAX MAX UNITS UNITS 110 % 1.3 2.0 V 77 200 ns 14.2 ns 14 µ Maxim Integrated ...

Page 11

... FOR SPI READ CYCLES, AFTER THE 8TH CLOCK-RISING EDGE, THE MAX3420E STARTS DRIVING THE MOSI PIN AFTER TIME t OFF ITS DRIVER TO THE MOSI PIN BEFORE t Figure 9. SPI Bus Timing Diagram (Half-Duplex Mode, SPI Mode (0,0)) Maxim Integrated USB Peripheral Controller Test Circuits and Timing Diagrams ...

Page 12

... SPI master can detect the loss of V (through an interrupt (INT) or checking a bit BUS Bypass V to GND with a 1.0µ pin as possible. CC allow the SPI interface and all general-pur- VBCOMP detector input, BUS Maxim Integrated the L ...

Page 13

... XO unconnected. The external clock must meet the voltage characteristics depicted in the Electrical Characteristics table. Internal logic is single- edge triggered. The external clock should have a nomi- nal 50% duty cycle. Maxim Integrated USB Peripheral Controller with SPI Interface PULLUP SINGLE Not Connected ...

Page 14

... The SPI data pins MOSI and MISO operate differently depending on the setting of a register bit called FDUPSPI (full-duplex SPI). Figure 13 shows the two configurations according to the FDUPSPI bit setting. GPOUT PIN FULL-SPEED TIME FRAME 1ms SOF MOSI MISO MAX3420E MOSI MISO MAX3420E Maxim Integrated ...

Page 15

... The inactive level of SCLK may be low or high, depending on the SPI operating mode (Figure 14). The MAX3420E SPI interface is active only when SS is low. When SS is high, the MAX3420E tri-states the SPI output pin and resets the internal MAX3420E SPI logic. Maxim Integrated USB Peripheral Controller SPI MODE 0 ...

Page 16

... SS low and placing the first data bit (MSB) to write on the MOSI input. the command byte into the MAX3420E on the rising edges of the SCLK it supplies. The SPI master changes its MOSI data on the falling edges of SCLK. high to deselect the MAX3420E. Maxim Integrated ...

Page 17

... When repowered, the oscillator and PLL require time to stabilize and lock. The OSCOKIRQ interrupt bit is used to indicate to the SPI master that the clocking system is stable and ready for operation. Maxim Integrated USB Peripheral Controller SPI MODE 0,0 (CPOL = 0, CPHA = 0) SUDAVIRQ ...

Page 18

... The exceptions are the interrupts associat- ed with the actual bus reset, allowing the SPI master to detect the beginning and end of the host signaling USB bus reset. Chip Reset USB Bus Reset Maxim Integrated ...

Page 19

... BUS voltage-detection input, VBCOMP, makes an excellent general-purpose input when pulled VBCOMP input has two interrupts associated with it, VBUSIRQ and NOVBUSIRQ. These interrupts can detect both edges of any transitions on the VBCOMP input. Maxim Integrated USB Peripheral Controller 3.3V REGULATOR MAX6349TL 1.0μF 0.1μF CERAMIC 10kΩ ...

Page 20

... For typical C tance can be greater than factor of 2. +3.3V 12MHz GPX INT N.C. MOSI N.C. MISO SCLK SS GPIN GPOUT 4 4 GPIO Crystal Selection : 18pF LOAD and C values, the effective resis- O LOAD μP 2 Maxim Integrated ...

Page 21

... ESD structures withstand high ESD in all operating modes: normal operation, suspend mode, and pow- ered down. VBCOMP and V CC capacitors connected to ground as close to the pins as Maxim Integrated USB Peripheral Controller possible. D+, D-, and VBCOMP provide protection to the following limits: • ±15kV using the Human Body Model • ...

Page 22

... Added the MAX3420EECJ/V+ part number to the Ordering Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...

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