AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 329

no-image

AT32UC3L0256

Manufacturer Part Number
AT32UC3L0256
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT32UC3L0256

Flash (kbytes)
256 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 Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
4
Lin
4
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:
AT32UC3L0256-AUT
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
AT32UC3L0256-D3HR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
AT32UC3L0256-H
Manufacturer:
ATMEL
Quantity:
270
Part Number:
AT32UC3L0256-H
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
17. Frequency Meter (FREQM)
17.1
17.2
17.3
Figure 17-1. Frequency Meter Block Diagram
17.4
17.4.1
32145A–12/2011
Features
Overview
Block Diagram
Product Dependencies
Power Management
REFSEL
CLKSEL
Rev: 3.1.0.1
The Frequency Meter (FREQM) can be used to accurately measure the frequency of a clock by
comparing it to a known reference clock.
In order to use this module, other parts of the system must be configured correctly, as described
below.
The device can enter a sleep mode while a measurement is ongoing. However, make sure that
neither CLK_MSR nor CLK_REF is stopped in the actual sleep mode. FREQM interrupts can
wake up the device from sleep modes when the measurement is done, but only from sleep
modes where CLK_FREQM is running. Please refer to the Power Manager chapter for details.
Accurately measures a clock frequency
Selectable reference clock
A selectable clock can be measured
Ratio can be measured with 24-bit accuracy
CLK_MSR
CLK_REF
Counter
REFNUM,
Timer
START
START
VALUE
Trigger
AT32UC3L0128/256
ISR
329

Related parts for AT32UC3L0256