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Features
* AVR(R) Microcontroller-based Function Controller and Hub * Binary-compatible with the AT43USB355 * Fully Programmable Full-Speed USB 2.0 Hub with Two External * * * * * * * * * * * * * * * *
and One Attached Downstream Ports Full Speed USB Function with Four Endpoints High Performance and Low Power 12/24 MIPs AVR RISC Microcontroller 120 Powerful Instructions - Most with 83/41.5 ns Execution Cycle Times 24 KB Masked ROM Program Memory 1 KB Internal Data SRAM 32 x 8 General-purpose Working Registers 15 Programmable I/O Port Pins 12-channel 10-bit Analog-to-Digital Converter (ADC) One 8-bit Timer/Counter with Separate Pre-scaler One 16-bit Timer/Counter with Separate Pre-scaler and Two PWMs External and Internal Interrupt Sources Programmable Watchdog Timer Low Power Suspend Mode 6 MHz Crystal Oscillator with PLL 5V Operation with On-chip 3.3V Regulators 48-lead LQFP Package
Low Cost USB Microcontroller with Hub, ADC and PWM AT43USB353M
DP0 DM0 USB HUB REPEATER
DP2 DM2 DP3
Summary
XTAL1
DM3 CLOCK GENERATOR GPIO PA[0:7]
XTAL2
LFT AVR CPUSEL ADC
PD[0:6]
ADC[0:11]
TIMER/ COUNTERS RSTN TEST ROM AND SRAM
VCC[1,2,A]
VSS[1,2,A] VOLTAGE REGULATORS V33[1,2,A]
Rev. 3307AS-USB-02/03
1
Overview
The Atmel AT43USB353M is a full-speed USB AVR-based microcontroller with a full-speed USB 2.0 compliant embedded hub especially suitable for use in applications requiring Analogto-Digital converters (ADCs) and PWMs such as in force feedback 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 headphone sets for voice commands flash memory modules or any other USB device. The MCU of the AT43USB353M is a high performance 8-bit AVR RISC that operates at a clock frequency of 12 MHz or 24 MHz. Its program memory is a 24-Kbyte mask programmable ROM and its data memory is 1-Kbyte SRAM. The ADC has a minimum conversion time of 12 ms that together with the 12 input channels 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 15 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 function has one control endpoint and three additional programmable endpoints, each with their own FIFOs. Two of the endpoints have a 64-byte FIFO each, while the third has an 8-byte FIFO. The USB hardware supports the physical and link layers of the USB protocol while the transaction layer function must be implemented in the MCU's firmware. The AVR architecture was developed to be efficiently programmed in C and without loss in performance. The AT43USB353M is binary-compatible with the AT43USB355. Firmware written for the AT43USB355 will run on the AT43USB353M without modification as long as only features common to both devices are used.
Development Support
The AT43USB353M uses the same program and development tools as the AT43USB355 and other Atmel AVR microcontrollers including: C compilers, macro assemblers, program debuggers/simulators, in-circuit emulators. The development kit is the AT43DK355, which comes with USB firmware library and sample source code for the most common USB applications.
2
AT43USB355
3307AS-USB-02/03
AT43USB355
Ordering Information
Program Memory Mask ROM Ordering Code AT43USB353M-AC Package 48 LQFP Operation Range Commercial (0C to 70C)
Package Type 48AA 48-lead, 7 x 7 mm Body Size, Low Profile Plastic Quad Flat Package (LQFP)
3
3307AS-USB-02/03
Packaging Information
48AA - LQFP
PIN 1 B
PIN 1 IDENTIFIER
e
E1
E
D1 D C
0~7 A1 L
COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL A A1 A2 D D1 E MIN - 0.05 1.35 8.75 6.90 8.75 6.90 0.17 0.09 0.45 NOM - - 1.40 9.00 7.00 9.00 7.00 - - - 0.50 TYP MAX 1.60 0.15 1.45 9.25 7.10 9.25 7.10 0.27 0.20 0.75 Note 2 Note 2 NOTE
A2
A
Notes:
1. This package conforms to JEDEC reference MS-026, Variation BBC. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. 3. Lead coplanarity is 0.08 mm maximum.
E1 B C L e
10/5/2001 2325 Orchard Parkway San Jose, CA 95131 TITLE 48AA, 48-lead, 7 x 7 mm Body Size, 1.4 mm Body Thickness, 0.5 mm Lead Pitch, Low Profile Plastic Quad Flat Package (LQFP) DRAWING NO. 48AA REV. C
R
4
AT43USB355
3307AS-USB-02/03
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(c) Atmel Corporation 2003. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life support devices or systems. Atmel(R) and AVR (R) are the registered trademarks of Atmel. Other terms and product names may be the trademarks of others. Printed on recycled paper.
3307AS-USB-02/03 xM

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