ATMEL AT43USB355 Full speed usb microcontroller with embedded hub, adc and pwm Datasheet

Features
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AVR® Microcontroller-based USB Hub and Function Controller
Fully Programmable USB 1.1 Hub with 2 External and 1 Attached Downstream Ports
Full Speed USB Function with 4 Endpoints
High-performance and Low-power AVR RISC Microcontroller
120 Powerful Instructions – Most with 83 ns Execution Cycle Times
24K Bytes Program Memory in Masked ROM or Downloadable SRAM
1K Byte Internal SRAM
32 x 8 General Purpose Working Registers
27 Programmable I/O Port Pins
12 Channels 10-bit A-to-D Converter
Programmable SPI Serial Interface
One 8-bit Timer Counter with Separate Pre-scaler
One 16-bit Timer Counter with Separate Pre-scaler and Two PWM
External and Internal Interrupt Sources
Programmable Watchdog Timer
Low-power Idle and Power-down Modes
6 MHz Crystal Oscillator with PLL
5V Operation with On-chip 3.3V Regulators
64-lead LQFP Package
Full Speed
USB
Microcontroller
with Embedded
Hub, ADC and
PWM
AT43USB355
XTAL1
PA[0:7]
XTAL2
PB[0:7]
Summary
LFT
VCC[1:3]
PD[0:7]
VSS[1:3]
VCCA
VSSA
TEST
PF[1:3]
ANI[0:7]
RSTN
ANI[8:11]
DP2
DP0
DM2
DM0
DP3
DM3
Rev. 2603BS–USB–01/02
1
Overview
The Atmel AT43USB355 is a full speed USB AVR-based microcontroller with a USB 1.1 compliant embedded hub especially suitable for use in game controllers. The USB hub has 3
downstream ports, one of which is permanently attached to the USB function. The USB function controller has its own device address and endpoints. In game controller applications, the
two external downstream USB ports can be used to connect other devices such as headphones sets for voice commands of games, Flash memory modules, or any other USB device.
The A-to-D converters have a minimum conversion time of 12 µs that together with the 12input channel should cover even the most demanding game controllers such as gamepads,
joysticks and racing wheels. The two PWM outputs can be programmed for 8-, 9- or 10-bit resolution for applications requiring force feedback. The 27 general-purpose programmable I/O
pins provide generous inputs for the various buttons and switches and LED indicators that are
being used in increasing numbers in today’s game controllers.
The USB hardware block consists of a USB transceiver, SIE, hub repeater, endpoint controllers, and an interface to the microcontroller. The USB hardware of the AT43USB355 supports
the physical and link layers of the USB protocol while the transaction layer and hub controller
functions must be implemented in the microcontroller’s firmware. If the application does not
require a hub, it can be disabled. The AVR architecture was developed to be programmed in C
efficiently and without loss in performance.
There are two versions of the chip. The AT43USB355E has a SRAM program memory that is
automatically loaded from an external serial Flash/EEPROM during power on reset. The
AT43USB355M stores its firmware in a masked ROM. The two versions are pin and function
compatible.
Development
Support
2
The AT43USB355 uses the same program and development tools as the Atmel AVR microcontrollers including: C compilers, macro assemblers, program debuggers/simulators, incircuit emulators. A development kit is also available including firmware source code for the
most common USB applications.
AT43USB355
2603BS–USB–01/02
AT43USB355
Packaging Information
64AA – LQFP
Dimensions in Millimeters and (Inches)
Controlling Dimensions: Millimeters
JEDEC STANDARD MS-026 ACB
12.25(0.492)
SQ
11.75(0.463)
PIN 1 ID
PIN 1
0.27(0.011)
0.17(0.007)
0.50(0.020) BSC
10.10(0.397)
SQ
9.90(0.389)
1.60(0.063) MAX
0.20(0.008)
0.09(0.003)
0˚~7˚
0.75(0.030)
0.45(0.018)
0.15(0.006)
0.05(0.002)
REV. A
R
2325 Orchard Parkway
San Jose, CA 95131
TITLE
64AA, 64-lead, Low-profile (1.4 mm) Plastic Quad Flat
Package (LQFP)
1/15/2002
DRAWING NO.
64AA
REV.
A
3
2603BS–USB–01/02
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© Atmel Corporation 2002.
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Printed on recycled paper.
2603BS–USB–01/02
xM
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