AT32UC3A1128-AUT Atmel, AT32UC3A1128-AUT Datasheet - Page 332
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AT32UC3A1128-AUT
Manufacturer Part Number
AT32UC3A1128-AUT
Description
IC MCU AVR32 128KB FLASH 100TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A1128-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Controller Family/series
AT32UC3A
No. Of I/o's
69
Ram Memory Size
32KB
Cpu Speed
66MHz
No. Of Timers
1
Rohs Compliant
Yes
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, RS-485, SPI, USART
Maximum Clock Frequency
66 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1100, ATEVK1105
Minimum Operating Temperature
- 40 C
Package
100TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
66 MHz
Operating Supply Voltage
1.8|3.3 V
For Use With
ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 332 of 826
- Download datasheet (20Mb)
26.7.7
32058J–AVR32–04/11
RS485 Mode
The USART features the RS485 mode to enable line driver control. While operating in RS485
mode, the USART behaves as though in asynchronous or synchronous mode and configuration
of all the parameters is possible. The difference is that the RTS pin is driven high when the
transmitter is operating. The behavior of the RTS pin is controlled by the TXEMPTY bit. A typical
connection of the USART to a RS485 bus is shown in
Figure 26-36. Typical Connection to a RS485 Bus
The USART is set in RS485 mode by programming the MODE field in the Mode Register (MR)
to the value 0x1.
The RTS pin is at a level inverse to the TXEMPTY bit. Significantly, the RTS pin remains high
when a timeguard is programmed so that the line can remain driven after the last character com-
pletion.
transmission when the timeguard is enabled.
Figure 26-37. Example of RTS Drive with Timeguard
Figure 26-37 on page 332
Baud Rate
TXEMPTY
US_THR
TXRDY
Clock
Write
TXD
RTS
USART
Start
Bit
D0
RXD
TXD
RTS
gives an example of the RTS waveform during a character
D1
D2
D3
D4
D5
D6
Figure 26-36 on page
D7
Parity
Bit
Stop
Bit
Differential
Bus
TG = 4
AT32UC3A
332.
332
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