AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 14

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

User Peripherals
USART: Universal
Synchronous/
Asynchronous Receiver
Transmitter
TC: Timer Counter
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AT91X40 Series
The AT91X40 Series provides two identical, full-duplex, universal synchronous/asyn-
chronous receiver/transmitters.
Each USART has its own baud rate generator, and two dedicated Peripheral Data Con-
troller channels. The data format includes a start bit, up to 8 data bits, an optional
programmable parity bit and up to 2 stop bits.
The USART also features a Receiver Timeout register, facilitating variable length Frame
support when it is working with the PDC, and a Time Guard register, used when interfac-
ing with slow remote equipment.
The AT91X40 Series features a Timer Counter block that includes three identical 16-bit
timer counter channels. Each channel can be independently programmed to perform a
wide range of functions, including frequency measurement, event counting, interval
measurement, pulse generation, delay timing and pulse-width modulation.
The Timer Counter can be used in Capture or Waveform Mode, and all three counter
channels can be started simultaneously and chained together.
1354D–ATARM–08/02