ATXMEGA128A1-C7U Atmel, ATXMEGA128A1-C7U Datasheet - Page 36
![MCU AVR 128K FLASH 1.6V 100VFBGA](/photos/12/32/123223/100-lfbga_sml.jpg)
ATXMEGA128A1-C7U
Manufacturer Part Number
ATXMEGA128A1-C7U
Description
MCU AVR 128K FLASH 1.6V 100VFBGA
Manufacturer
Atmel
Series
AVR® XMEGAr
Datasheet
1.ATAVRONEKIT.pdf
(113 pages)
Specifications of ATXMEGA128A1-C7U
Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
78
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 16x12b, D/A 4x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-VFBGA
Processor Series
XMEGA
Core
AVR
Data Bus Width
8 bit, 16 bit
Data Ram Size
8 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
78
Number Of Timers
8
Operating Supply Voltage
2.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT, ATQT600
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
19. TWI - Two-Wire Interface
19.1
19.2
8067M–AVR–09/10
Features
Overview
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The Two-Wire Interface (TWI) is a bi-directional wired-AND bus with only two lines, the clock
(SCL) line and the data (SDA) line. The protocol makes it possible to interconnect up to 128 indi-
vidually addressable devices. Since it is a multi-master bus, one or more devices capable of
taking control of the bus can be connected.
The only external hardware needed to implement the bus is a single pull-up resistor for each of
the TWI bus lines. Mechanisms for resolving bus contention are inherent in the TWI protocol.
PORTC, PORTD, PORTE, and PORTF each has one TWI. Notation of these peripherals are
TWIC, TWID, TWIE, and TWIF, respectively.
Four Identical TWI peripherals
Simple yet Powerful and Flexible Communication Interface
Both Master and Slave Operation Supported
Device can Operate as Transmitter or Receiver
7-bit Address Space Allows up to 128 Different Slave Addresses
Multi-master Arbitration Support
Up to 400 kHz Data Transfer Speed
Slew-rate Limited Output Drivers
Noise Suppression Circuitry Rejects Spikes on Bus Lines
Fully Programmable Slave Address with General Call Support
Address Recognition Causes Wake-up when in Sleep Mode
I
2
C and System Management Bus (SMBus) compatible
XMEGA A1
36