AT43USB355_02 Datasheet, PDF (1/4 Pages) ATMEL Corporation – Full speed USB Microcontroller with Embedded Hub, ADC and PWM

Features
• 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
XTAL1
XTAL2
LFT
VCC[1:3]
VSS[1:3]
VCCA
VSSA
TEST
RSTN
DP0
DM0
PA[0:7]
PB[0:7]
PD[0:7]
PF[1:3]
ANI[0:7]
ANI[8:11]
DP2
DM2
DP3
DM3
Full Speed
USB
Microcontroller
with Embedded
Hub, ADC and
PWM
AT43USB355
Summary
Rev. 2603BS–USB–01/02
1