AT32UC3L032-D3UR Atmel, AT32UC3L032-D3UR Datasheet - Page 469

• Manufacturer Part Number: AT32UC3L032-D3UR
• Description: MCU AVR32 32KB FLASH 48TLLGA
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3L032-D3UR

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 3.6 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TLLGA
• Processor Series: AT32UC3x
• Core: AVR32
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 7
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR32, EWAVR32-BL
• Development Tools By Supplier: AT32UC3L-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 9 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

21.5
21.6
Table 21-4.
21.7
21.7.1
21.7.2
32099F–11/2010
Pin Name
TWD
TWCK
TWALM
Application Block Diagram
I/O Lines Description
Product Dependencies
I/O Lines
Power Management
I/O Lines Description
Figure 21-2. Application Block Diagram
In order to use this module, other parts of the system must be configured correctly, as
described below.
Both TWD and TWCK are bidirectional lines, connected to a positive supply voltage via a cur-
rent source or pull-up resistor (see
are high. The output stages of devices connected to the bus must have an open-drain or open-
collector to perform the wired-AND function.
TWALM is used to implement the optional SMBus SMBALERT signal.
The TWALM, TWD, and TWCK pins may be multiplexed with I/O Controller lines. To enable
the TWIM, the programmer must perform the following steps:
If the CPU enters a sleep mode that disables clocks used by the TWIM, the TWIM will stop
functioning and resume operation after the system wakes up from sleep mode.
• Program the I/O Controller to:
Rp: Pull up value as given by the I²C Standard
Master
Pin Description
Two-wire Serial Data
Two-wire Serial Clock
SMBus SMBALERT
TWI
– Dedicate TWD, TWCK and optionally TWALM as peripheral lines.
– Define TWD, TWCK and optionally TWALM as open-drain.
TWD
TWCK
serial EEPROM
Atmel TWI
Slave 1
Figure 21-2 on page
I²C RTC
Slave 2
controller
I²C LCD
Slave 3
AT32UC3L016/32/64
469). When the bus is free, both lines
I²C temp.
Slave 4
sensor
Rp
Input/Output
Input/Output
Input/Output
Type
Rp
VDD
469