ATUC64L4U Atmel Corporation, ATUC64L4U Datasheet - Page 527
ATUC64L4U
Manufacturer Part Number
ATUC64L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC64L4U
Flash (kbytes)
64 Kbytes
Pin Count
48
Max. Operating Frequency
50 MHz
Cpu
32-bit AVR
# Of Touch Channels
17
Hardware Qtouch Acquisition
Yes
Max I/o Pins
36
Ext Interrupts
36
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
460
Analog Comparators
8
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.62 to 3.6
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
35
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATUC64L4U-D3HR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
ATUC64L4U-H
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATUC64L4U-U
Manufacturer:
ATMEL
Quantity:
20
Part Number:
ATUC64L4U-ZUT
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- ATUC128L4U PDF datasheet #3
- ATUC128L4U PDF datasheet #4
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- Download datasheet (15Mb)
22. Two-wire Master Interface (TWIM)
22.1
22.2
32142A–12/2011
Features
Overview
Rev.: 1.1.0.1
•
•
•
•
•
•
•
The Atmel Two-wire Master Interface (TWIM) interconnects components on a unique two-wire
bus, made up of one clock line and one data line with speeds of up to 400 kbit/s, based on a
byte-oriented transfer format. It can be used with any Atmel Two-wire Interface bus serial
EEPROM and I²C compatible device such as a real time clock (RTC), dot matrix/graphic LCD
controller, and temperature sensor, to name a few. The TWIM is always a bus master and can
transfer sequential or single bytes. Multiple master capability is supported. Arbitration of the bus
is performed internally and relinquishes the bus automatically if the bus arbitration is lost.
A configurable baud rate generator permits the output data rate to be adapted to a wide range of
core clock frequencies.
Master Mode and a full I²C compatible device.
Table 22-1.
Note:
I²C
Standard-mode (100 kbit/s)
Fast-mode (400 kbit/s)
Fast-mode Plus (1 Mbit/s)
7- or 10-bits Slave Addressing
START BYTE
Repeated Start (Sr) Condition
ACK and NACK Management
Slope Control and Input Filtering (Fast mode)
Clock Stretching
Compatible with I
Compatible with SMBus standard
Compatible with PMBus
Compatible with Atmel Two-wire Interface Serial Memories
DMA interface for reducing CPU load
Arbitrary transfer lengths, including 0 data bytes
Optional clock stretching if transmit or receive buffers not ready for data transfer
– Multi-master support
– Transfer speeds of 100 and 400 kbit/s
– 7- and 10-bit and General Call addressing
– Hardware Packet Error Checking (CRC) generation and verification with ACK control
– SMBus ALERT interface
– 25 ms clock low timeout delay
– 10 ms master cumulative clock low extend time
– 25 ms slave cumulative clock low extend time
Standard
1. START + b000000001 + Ack + Sr
(1)
Atmel TWIM Compatibility with I²C Standard
²
C standard
Table 22-1
lists the compatibility level of the Atmel Two-wire Interface in
Atmel TWIM
Supported
Supported
Supported
Supported
Not Supported
Supported
Supported
Supported
Supported
ATUC64/128/256L3/4U
527
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